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This filing is made pursuant to Rule 424(b)(5)
under the Securities Act of 1933 in connection
with Registration No. 333-113032

PROSPECTUS SUPPLEMENT
(To prospectus dated March 23, 2004)

4,100,000 Shares

GRAPHIC

Common Stock


        All of the 4,100,000 shares are being sold by us. We currently pay regular monthly distributions to holders of our common stock, which is listed on the New York Stock Exchange, or NYSE, under the symbol "O." On September 21, 2005, the last reported sale price of our common stock on the NYSE was $23.79 per share.

        Realty Income Corporation, The Monthly Dividend Company®, is a Maryland corporation organized to operate as an equity real estate investment trust, or REIT. We are a fully integrated, self-administered real estate company with in-house acquisition, leasing, legal, retail and real estate research, portfolio management and capital markets expertise. As of June 30, 2005, we owned a diversified portfolio of 1,582 retail properties located in 48 states with over 12.4 million square feet of leasable space leased to 98 different retail chains doing business in 30 separate retail industries.

        Investing in our common stock involves risks. See "Risk Factors" beginning on page S-4 of this prospectus supplement and on page 4 of the accompanying prospectus.


 
  Per Share
  Total
Public offering price   $23.79   $97,539,000
Underwriting discount   $1.19   $4,879,000
Proceeds, before expenses, to Realty Income Corporation   $22.60   $92,660,000

        The underwriters may also purchase up to an additional 615,000 shares from us to cover overallotments, if any.

        Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

        The shares of common stock will be ready for delivery on or about September 27, 2005.


Merrill Lynch & Co.
Sole Book-Running Manager

A.G. Edwards   Wachovia Securities

Banc of America Securities LLC

 

 

Credit Suisse First Boston

 

 

 

 

Raymond James

 

 

 

 

 

 

RBC Capital Markets
BB&T Capital Markets
  Robert W. Baird & Co.
    Stifel, Nicolaus & Company
                 
Incorporated
      Wells Fargo Securities

The date of this prospectus supplement is September 22, 2005.



TABLE OF CONTENTS

Prospectus Supplement

 
  Page
Prospectus Supplement Summary   S-1
Risk Factors   S-4
Selected Financial Information   S-7
Use of Proceeds   S-8
Capitalization   S-9
Price Range of Common Stock and Distribution History   S-10
Properties   S-11
United States Federal Income Tax Considerations   S-17
Underwriting   S-34
Legal Matters   S-37
Experts   S-37
Incorporation by Reference   S-37


Prospectus

 
  Page
The Company   1
Forward-Looking Statements   2
Risk Factors   4
Use of Proceeds   12
Ratios of Earnings to Fixed Charges   12
Description of Debt Securities   13
Description of Common Stock   25
General Description of Preferred Stock   28
Restrictions on Ownership and Transfers of Stock   35
United States Federal Income Tax Considerations Related to Our REIT Election   38
Plan of Distribution   49
Stockholder Rights Plan   49
Experts   50
Legal Matters   50
Where You Can Find More Information   51
Incorporation of Information We File with the SEC   51
Other Information   52

        You should rely only on the information contained or incorporated by reference in this prospectus supplement and the accompanying prospectus. We have not, and the underwriters have not, authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and the underwriters are not, making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed since those dates.



PROSPECTUS SUPPLEMENT SUMMARY

        This summary may not contain all the information that may be important to you. You should read the entire prospectus supplement and the accompanying prospectus and the documents incorporated and deemed to be incorporated by reference herein and therein, including the financial statements and related notes, before making an investment decision. Unless this prospectus supplement otherwise indicates or the context otherwise requires, the terms "Realty Income," "our," "us" and "we" as used in this prospectus supplement refer to Realty Income Corporation and its subsidiaries on a consolidated basis. Unless otherwise expressly stated or the context otherwise requires, all information in this prospectus supplement assumes that the overallotment option granted to the underwriters is not exercised, and information relating to our properties excludes properties owned by our wholly-owned subsidiary Crest Net Lease, Inc. and its wholly owned subsidiary, CrestNet 1 LLC, which we collectively refer to herein as Crest Net.


Realty Income

        Realty Income is organized to operate as an equity real estate investment trust, commonly referred to as a REIT. Our primary business objective is to generate dependable monthly dividends from a consistent and predictable level of funds from operations, or FFO, per share. Additionally, we seek to increase distributions to stockholders and FFO per share through both active portfolio management and the acquisition of additional properties.

        We are a fully integrated, self-administered real estate company with in-house acquisition, leasing, legal, retail and real estate research, portfolio management and capital markets expertise. As of June 30, 2005, we owned a diversified portfolio of 1,582 retail properties located in 48 states, with over 12.4 million square feet of leaseable space leased to 98 different retail chains doing business in 30 separate retail industries. Of the 1,582 properties in the portfolio, 1,577, or 99.7%, are single-tenant, retail properties and the remaining five are multi-tenant properties. At June 30, 2005, 1,549, or 98.2%, of the 1,577 single-tenant properties were leased with a weighted average remaining lease term (excluding extension options) of approximately 12.0 years.


Recent Developments

Recent Acquisition Activity

        On September 19, 2005, we entered into a definitive agreement with Kerasotes Showplace Theatres, LLC, a Delaware limited liability company, to acquire 17 Kerasotes Showplace-branded theater properties for approximately $200 million in cash. We intend to use most or all of the net proceeds from this offering, together with approximately $87.6 million of the net proceeds we received from the sale of our 53/8% Senior Notes due 2017 as described below and borrowings under our $250 million acquisition credit facility, to pay the purchase price for the Kerasotes properties. While the transaction is subject to a number of conditions, it is anticipated that the transaction will close later this month. We cannot guarantee, however, that the acquisition will close on the terms described herein or at all.

        We will acquire the 17 Kerasotes theater properties subject to 20-year, triple-net lease agreements. The theaters have, on average, approximately 45,000 leasable square feet and are situated on an average lot size of approximately 10 acres. In general, the properties to be purchased are seasoned, state-of-the-art, stadium-seating theaters with an average of 12.5 screens per location and an average building age of seven years. The properties are located in Illinois, Indiana, Minnesota and Missouri.

Increase in Monthly Distributions to Common Stockholders; Distribution Payable on October 17, 2005

        We continue our 36-year policy, which began with our predecessors, of paying monthly distributions on our common stock. Monthly distributions per share were increased $0.00375 in

S-1



August 2005 from $0.11125 per common share to $0.115 per common share. This monthly distribution amount represented an annualized rate of $1.38 per common share.

        On September 20, 2005, we announced that our board of directors had declared another increase in our monthly common stock distribution to $0.115625 per share. This is the 32nd consecutive quarter in which we have increased the amount of the monthly distribution. This monthly distribution is payable on October 17, 2005 to stockholders of record as of October 3, 2005. The new monthly distribution amount represents an annualized rate of $1.3875 per common share. Purchasers of shares of common stock in this offering will be entitled to receive the October 17, 2005 distribution, provided they are stockholders of record as of October 3, 2005. Although we expect to continue our policy of paying monthly distributions on our common stock, we cannot guarantee that we will maintain the current level of distributions, that we will continue our pattern of increasing distributions per share, or what the actual distribution yield will be for any future period.

Issuance of Debt Securities

        On September 15, 2005, we issued and sold $175,000,000 aggregate principal amount of our 53/8% Senior Notes due 2017, which we sometimes refer to as our "Notes due 2017". Total net proceeds of the offering to us were approximately $173.4 million. We used approximately $58.8 million of the net proceeds from the offering to repay outstanding borrowings under our $250 million acquisition credit facility, and we intend to use most of the remaining net proceeds to finance a portion of the purchase price of the Kerasotes acquisition.

New Unsecured Acquisition Credit Facility

        In June 2005, we entered into a new unsecured $300 million acquisition credit facility to replace our existing unsecured $250 million acquisition credit facility, which is scheduled to expire in October 2005. The new $300 million acquisition credit facility is expected to go into effect in October 2005 (upon expiration of the existing credit facility) and will expire in October 2008, unless extended as provided in the agreement. Under the terms of the new $300 million acquisition credit facility, our borrowing rate was reduced to the London Interbank Offered Rate, or LIBOR, plus 65 basis points with a facility fee of 15 basis points, for all-in drawn pricing of 80 basis points over LIBOR based on our current credit ratings. The new credit facility offers us other interest rate options as well.

Expiration of Stockholder Rights Plan

        On February 25, 2005, we announced that our board of directors had amended our stockholder rights plan by changing the expiration date of the plan from July 1, 2008 to February 28, 2005. Accordingly, the stockholder rights plan and the related preferred share purchase rights have expired and no preferred share purchase rights will be issued in respect of the shares of common stock sold in this offering. As a result, you should disregard all statements in the accompanying prospectus concerning our stockholder rights plan, including the statements appearing under the captions "Risk Factors—Our charter contains provisions that may delay, defer or prevent a change of control transaction" and "Stockholder Rights Plan".

Amendments to our Articles of Incorporation

        Our board of directors was previously divided into three classes of directors serving staggered terms of three years each. Following approval by our stockholders at our annual meeting held on May 10, 2005, we filed an amendment to our articles of incorporation that eliminated our classified board of directors and all of our directors currently serve a one year term. As a result of the foregoing amendment, all statements in the accompanying prospectus concerning our previously classified board of directors should be disregarded.

        In addition, following approval by our stockholders at that meeting, we filed an additional amendment to our articles of incorporation that increased the total number of authorized shares of our common stock from 100,000,000 shares to 200,000,000 shares.

S-2



The Offering

        We are selling all of the shares of common stock offered by this prospectus supplement and no shares are being sold by our stockholders. For a description of our common stock, see "Description of Common Stock" and "Restrictions on Ownership and Transfers of Stock" in the accompanying prospectus.

Securities Offered   4,100,000 shares of common stock, plus up to an additional 615,000 shares if the underwriters exercise their overallotment option in full.
Shares to be outstanding after this offering(1)   83,693,684
Use of proceeds   We intend to use most or all of the net proceeds from this offering of common stock, together with approximately $87.6 million of the net proceeds we received from the sale of our Notes due 2017 and borrowings under our $250 million acquisition credit facility, to pay the purchase price for the Kerasotes properties. To the extent there are any remaining net proceeds from this common stock offering, they will be used for general corporate purposes. If the Kerasotes transaction is not consummated, we intend to use the net proceeds from this offering for general corporate purposes.
Restrictions on Ownership and Transfer   Our charter contains restrictions on ownership and transfer of our common stock intended to assist us in maintaining our status as a REIT for federal and/or state income tax purposes. For example, our charter restricts any person from acquiring actual or constructive ownership of more than 9.8% (in value or number of shares, whichever is more restrictive) of our outstanding shares of common stock, as more fully described in the section entitled "Restrictions on Ownership and Transfers of Stock" in the accompanying prospectus.
NYSE Symbol   "O"

(1)
Based on shares outstanding as of September 21, 2005. Does not include, as of September 21, 2005,

(a)
138,168 shares of common stock issuable upon the exercise of outstanding options;

(b)
3,103,432 additional shares reserved for issuance under our stock incentive plans; or

(c)
up to 615,000 shares of common stock issuable upon exercise of the underwriters' over-allotment option.

        Our board of directors has declared a distribution of $0.115625 per share of common stock payable on October 17, 2005 to stockholders of record of our common stock on October 3, 2005. Purchasers of shares of common stock in this offering will be entitled to receive the October 17, 2005 distribution, provided they are stockholders of record as of October 3, 2005.

        As of September 21, 2005, we had 5,100,000 shares of 7.375% Monthly Income Class D Cumulative Redeemable Preferred Stock outstanding. In the event that we liquidate, dissolve or wind up Realty Income, the holders of this preferred stock will have the right to receive $25.00 per share, plus accrued and unpaid dividends, before any payment is made to the holders of our common stock. In addition, this preferred stock ranks senior to our common stock with respect to the payment of dividends and distributions.

S-3



RISK FACTORS

        In evaluating an investment in our common stock, you should carefully consider the following risk factors and the risk factors described in the accompanying prospectus under the caption "Risk Factors," in addition to the other risks and uncertainties described in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference therein, including the information appearing under the heading "Business—Other Items" in our Annual Report on Form 10-K for the year ended December 31, 2004. As used under the captions "Risk Factors," in this prospectus supplement and in the accompanying prospectus, references to our capital stock include both our common stock, including the common stock offered by this prospectus supplement, and any class or series of our preferred stock and references to our stockholders include holders of our common stock and any class or series of our preferred stock, in each case unless otherwise expressly stated or the context otherwise requires.

Increases in market interest rates may adversely affect the price of our common stock.

        One of the factors that influences the price of our common stock in public trading markets is the annual yield from distributions on our common stock as compared to yields on other financial instruments. Thus, an increase in market interest rates will result in higher yields on other financial instruments, which could adversely affect the market price of our common stock.

Our business operations may not generate the cash needed to make distributions on our capital stock or to service our indebtedness.

        Our ability to make distributions on our common stock and preferred stock and payments on our indebtedness and to fund planned capital expenditures will depend on our ability to generate cash in the future. We cannot assure you that our business will generate sufficient cash flow from operations or that future borrowings will be available to us in an amount sufficient to enable us to make distributions on our common stock and preferred stock, to pay our indebtedness or to fund our other liquidity needs.

We are subject to risks associated with debt financing.

        We intend to incur additional indebtedness in the future, including borrowings under our acquisition credit facility. In June 2005, we entered into a new $300 million acquisition credit facility to replace our existing $250 million acquisition credit facility, which is scheduled to expire in October 2005. The new $300 million acquisition credit facility is expected to go into effect in October 2005 (upon expiration of the current credit facility) and will expire in October 2008, unless extended as provided in the agreement, and we intend to incur additional indebtedness under the new $300 million acquisition credit facility in the future.

        At September 21, 2005, we did not have any borrowings outstanding under our $250 million acquisition credit facility and we had $110 million in aggregate principal amount of our 73/4% Notes due 2007, $100 million in aggregate principal amount of our 81/4% Monthly Income Senior Notes due 2008, $20 million in aggregate principal amount of our 8% Notes due 2009, $100 million in aggregate principal amount of our 53/8% Senior Notes due 2013, $150 million in aggregate principal amount of our 51/2% Senior Notes due 2015, $175 million in aggregate principal amount of our 53/8% Senior Notes due 2017 and $100 million in aggregate principal amount of our 57/8% Senior Debentures due 2035 were outstanding. To the extent that new indebtedness is added to our current debt levels, the related risks that we now face would increase. As a result, we are and will be subject to risks associated with debt financing, including the risk that our cash flow could be insufficient to meet required payments on our debt, particularly in light of the fact that the interest rate on our current credit facility is, and the interest rate on our new $300 million credit facility will be, variable and could increase over time, and

S-4



the risk that we may be unable to refinance or repay our debt as it comes due. In addition, our current credit facility contains, and our new $300 million credit facility will contain, financial covenants that could limit the amount of distributions payable by us on our common stock and preferred stock in the event of a deterioration in our results of operations or financial condition, and our current credit facility provides, and our new $300 million credit facility will provide, that, in the event of a failure to pay principal or interest on borrowings thereunder when due (subject to any applicable grace period), we and our subsidiaries may not pay any dividends on our capital stock, including our outstanding common and preferred stock. If this were to occur, it would likely have a material adverse effect on the market price of our outstanding common and preferred stock and on the value of our debt securities.

        Our indebtedness could also have other important consequences to holders of the common stock, including:

Future issuances of equity securities could dilute the interests of holders of our common stock.

        Our future growth will depend in large part upon our ability to raise additional capital. If we were to raise additional capital through the issuance of equity securities, the interests of holders of common stock, including the shares of common stock offered by this prospectus supplement, could be diluted. The interests of our common stockholders could also be diluted by the issuance of shares of common stock upon the exercise of outstanding options or pursuant to stock incentive plans, such as those described under "Prospectus Supplement Summary—The Offering." Likewise, our Board of Directors is authorized to cause Realty Income to issue preferred stock in one or more series, entitled to such dividends and voting and other rights as the Board of Directors may determine. Accordingly, the Board of Directors may authorize the issuance of preferred stock with voting, dividend and other similar rights that could dilute, or otherwise adversely affect, the interests of holders of our common stock.

The market value of our common stock could be substantially affected by various factors.

        The market value of our common stock will depend on many factors, which may change from time to time, including, but not limited to:

S-5


        As a result of these and other factors, investors who purchase common stock in this offering may experience a decrease, which could be substantial, in the market value of their common stock, including decreases unrelated to our operating performance or prospects.

Matters pertaining to particular properties and tenants.

        Twenty-nine of our properties were available for sale or lease at June 30, 2005, 28 of which are single-tenant properties and one of which is a multi-tenant property. Six of the properties had been previously leased to child care operators, twelve to consumer electronic stores, eight to restaurant operators, two to shoe store operators, and one (which is a multi-tenant property) to a grocery store operator. As of September 20, 2005, transactions to lease or sell 10 of the 29 properties that were available for sale or lease at June 30, 2005 were underway or completed. We anticipate these transactions will be completed during the next six months, although we cannot guarantee that these properties can be leased or sold within this period. At June 30, 2005, thirteen of our properties under lease were unoccupied and available for sublease by the tenants, all of which were current with their rent and other obligations.

        For the quarter ended June 30, 2005, our tenants in the convenience store and child care industries accounted for approximately 18.8% and 13.2%, respectively, of our rental revenue. Individually, each of the other industries in our property portfolio accounted for less than 10% of our rental revenue for the quarter ended June 30, 2005. A downturn in any of these industries generally, whether nationwide or limited to specific sectors of the United States, could adversely affect tenants in those industries, which in turn could have a material adverse effect on our financial position and results of operations and our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions on our common stock and preferred stock. In addition, a substantial number of our properties are leased to middle market retail chains which generally have more limited financial and other resources than certain upper market retail chains, and therefore are more likely to be adversely affected by a downturn in their respective businesses or in the regional or national economy.

S-6



SELECTED FINANCIAL INFORMATION

        The following information is unaudited and was derived from our consolidated financial statements. The information is only a summary and does not provide all of the information contained in our consolidated financial statements, including the related notes, Management's Discussion and Analysis of Financial Condition and Results of Operations, and Quantitative and Qualitative Disclosures about Market Risk, which are part of our Annual Report on Form 10-K for the year ended December 31, 2004 and our Quarterly Report on Form 10-Q for the quarter ended June 30, 2005, incorporated by reference in the accompanying prospectus. You should read our financial statements and other information filed with the SEC. The following selected financial information as of and for the six months ended June 30, 2005 does not purport to reflect our financial condition or results of operations to be expected as of or for the year ending December 31, 2005.

 
   
  Year Ended December 31,

 
 
  Six Months
Ended
June 30, 2005

  2004
  2003
  2002
  2001
  2000
 
 
  (dollars in thousands, except per share data)

 
Total assets (book value)   $ 1,571,583   $ 1,442,315   $ 1,360,257   $ 1,080,230   $ 1,003,708   $ 934,766  
Cash and cash equivalents     1,948     2,141     4,837     8,921     2,467     3,815  
Lines of credit and notes payable     634,800     503,600     506,400     339,700     315,300     404,000  
Total liabilities     666,002     528,580     532,491     357,775     331,915     419,197  
Total stockholders' equity     905,581     913,735     827,766     722,455     671,793     515,569  
Net cash provided by operating activities     57,336     178,337     73,957     124,807     90,035     56,590  
Net change in cash and cash equivalents     (193 )   (2,696 )   (4,084 )   6,454     (1,348 )   3,042  
Total revenue     94,182     174,534     144,134     128,757     110,484     105,187  
Income from continuing operations     43,219     83,414     71,744     64,834     57,416     45,744  
Income from discontinued operations     4,950     19,983     14,691     13,833     10,142     9,044  
Net income     48,169     103,397     86,435     78,667     67,558     54,788  
Preferred stock (cash) dividends     (4,702 )   (9,455 )   (9,713 )   (9,713 )   (9,712 )   (9,712 )
Excess of redemption value over carrying value of preferred shares redeemed         (3,774 )                
Net income available to common stockholders     43,467     90,168     76,722     68,954     57,846     45,076  
Cash distributions paid to common stockholders     52,676     97,420     83,842     78,042     64,871     58,262  
Basic net income per common share     0.55     1.15     1.08     1.02     0.99     0.84  
Diluted net income per common share     0.55     1.15     1.08     1.01     0.99     0.84  
Cash distributions paid per common share     0.661875     1.24125     1.18125     1.15125     1.12125     1.09125  
Cash distributions declared per common share     0.663125     1.25125     1.18375     1.15375     1.12375     1.09375  
Basic weighted average number of common shares outstanding     79,589,462     78,518,296     71,128,282     67,867,498     58,450,718     53,369,196  
Diluted weighted average number of common shares outstanding     79,667,812     78,598,788     71,222,628     67,976,314     58,562,240     53,401,612  

S-7



USE OF PROCEEDS

        We estimate the net proceeds from the sale of common stock offered by this prospectus supplement, after deducting the discount to the underwriters but before estimated expenses payable by us, will be approximately $92.7 million, or approximately $106.6 million if the underwriters' overallotment option is exercised in full. We intend to use most or all of the net proceeds from the offering of the common stock, together with approximately $87.6 million of the net proceeds we received from the sale of our Notes due 2017 and borrowings under our $250 million acquisition credit facility, to pay the purchase price for the Kerasotes properties. See "Prospectus Supplement Summary—Recent Developments." To the extent there are any remaining net proceeds from this common stock offering, they will be used for general corporate purposes. If the Kerasotes transaction is not consummated, we intend to use the net proceeds from this offering for general corporate purposes.

        Pending application of the net proceeds for the purposes described above, we intend to temporarily invest the net proceeds in short-term government securities.

S-8



CAPITALIZATION

        The following table sets forth our unaudited capitalization as of June 30, 2005 on an historical basis and as adjusted to reflect the issuance of the common stock offered by this prospectus supplement and our receipt of net proceeds therefrom (after deducting underwriting discounts but before estimated expenses payable by us), our issuance of $175 million aggregate principal amount of our Notes due 2017 on September 15, 2005 and the application of a portion of the net proceeds from the offering of the Notes due 2017 to repay indebtedness under our $250 million acquisition credit facility. The as adjusted column in this table does not reflect our application of any of these net proceeds or, if applicable, any borrowings under our $250 million acquisition credit facility to pay the purchase price for the Kerasotes properties or for any other purpose.

 
  As of June 30, 2005
 
 
  Historical
  As Adjusted
 
 
  (dollars in thousands)
(unaudited)

 
Debt              
$250 million acquisition credit facility(1)   $ 54,800   $  
Notes due 2007     110,000     110,000  
Notes due 2008     100,000     100,000  
Notes due 2009     20,000     20,000  
Notes due 2013     100,000     100,000  
Notes due 2015     150,000     150,000  
Notes due 2017         175,000  
Debentures due 2035     100,000     100,000  
   
 
 
  Total debt   $ 634,800   $ 755,000  
   
 
 
Stockholders' Equity              
Preferred stock and paid in capital, par value $1.00 per share, 20,000,000 shares authorized, 5,100,000 shares issued and outstanding, historical and as adjusted     123,804     123,804  
Common stock and paid in capital, par value $1.00 per share, 200,000,000 shares authorized, 79,609,106 shares issued and outstanding historical, 83,709,106 shares issued and outstanding as adjusted     1,040,144     1,132,804  
Distributions in excess of net income     (258,367 )   (258,367 )
   
 
 
Total stockholders' equity     905,581     998,241  
   
 
 
Total capitalization   $ 1,540,381   $ 1,753,241  
   
 
 

(1)
We applied a portion of the net proceeds from the sale of our Notes due 2017, which we issued on September 15, 2005, to repay all outstanding borrowings under our $250 million acquisition credit facility. As a result, no borrowings were outstanding under that credit facility at September 21, 2005. We anticipate that we will need to incur borrowings under our $250 million acquisition credit facility to pay a portion of the purchase price for the Kerasotes properties.

S-9



PRICE RANGE OF COMMON STOCK AND DISTRIBUTION HISTORY

        On September 21, 2005, the last reported sales price per share of our common stock on the NYSE was $23.79. The table below sets forth for the periods indicated the high and low sales prices per share of our common stock, as reported by the NYSE, and distributions declared per share of our common stock.

 
  Price Per Share
of Common Stock

   
 
 
  Distributions
Declared
Per Share(1)

 
 
  High
  Low
 
2002                    
  First Quarter   $ 16.605   $ 14.525   $ 0.285625  
  Second Quarter     18.495     16.05     0.287500  
  Third Quarter     18.55     13.45     0.289375  
  Fourth Quarter     18.075     15.30     0.291250  
2003                    
  First Quarter     18.48     16.44     0.293125  
  Second Quarter     19.70     17.81     0.295000  
  Third Quarter     20.40     18.75     0.296875  
  Fourth Quarter     20.49     19.58     0.298750  
2004                    
  First Quarter     22.48     19.70     0.300625  
  Second Quarter     22.33     17.69     0.302500  
  Third Quarter     22.70     19.71     0.319375  
  Fourth Quarter     26.08     22.48     0.328750  
2005                    
  First Quarter     25.61     22.00     0.330625  
  Second Quarter     25.69     22.50     0.332500  
  Third Quarter, through September 21, 2005     25.65     22.00     0.341875 (2)

(1)
Common stock cash distributions currently are declared monthly by us based on financial results for the prior months.

(2)
Our board of directors has declared a monthly distribution of $0.115625 per share of common stock payable October 17, 2005 to stockholders of record on October 3, 2005, which is included in this distributions declared per share amount.

        After the market close on December 31, 2004, a 2-for-1 common stock split, declared in November 2004, became effective. Common stockholders received a dividend of one additional share of common stock for each share they owned. Unless otherwise expressly stated or the context otherwise requires, data regarding the number of outstanding shares of our common stock and per share data in this prospectus supplement has been adjusted for the stock split.

        Future distributions will be at the discretion of our board of directors and will depend on, among other things, our results of operations, funds from operations, cash flow from operations, financial condition and capital requirements, the annual distribution requirements under the REIT provisions of the Internal Revenue Code of 1986, as amended, our debt service requirements and any other factors our board of directors deems relevant. In addition, our current $250 million acquisition credit facility contains, and our new $300 million credit facility will contain, financial covenants that could limit the amount of distributions payable by us on our common stock and preferred stock in the event of a deterioration in our results of operations or financial condition, and our current credit facility prohibits, and our new $300 million credit facility will provide that, in the event of a failure to pay principal of or interest on borrowings thereunder when due (subject to any applicable grace period), we and our

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subsidiaries may not pay any dividends on our capital stock, including our outstanding common stock and preferred stock. Accordingly, although we expect to continue our policy of paying monthly distributions on our common stock, we cannot guarantee that we will maintain the current level of distributions, that we will continue our pattern of increasing distributions per share, or what the actual distribution yield will be for any future period.


PROPERTIES

        At June 30, 2005, we owned a diversified portfolio:

        Of the 1,582 properties in the portfolio, 1,577, or 99.7%, are single-tenant, retail properties and the remaining five are multi-tenant properties. At June 30, 2005, 1,549, or 98.2%, of the 1,577 single-tenant properties were leased with a weighted average remaining lease term (excluding extension options) of approximately 12.0 years.

        In addition to our real estate portfolio, at June 30, 2005, our subsidiary, Crest Net had invested $22.2 million in a portfolio of 13 retail properties located in seven states. These properties are classified as held for sale on our consolidated balance sheet.

        We typically acquire retail store properties under long-term leases with retail chain store operators. These transactions generally provide capital to owners of retail real estate and retail chains for expansion or other corporate purposes. Our acquisition and investment activities are concentrated in well-defined target markets and generally focus on retailers providing goods and services that satisfy basic consumer needs.

        At June 30, 2005, 1,549, or 97.9%, of our 1,582 retail properties were owned under net-lease agreements. Our net-lease agreements generally:

        Our net-leased retail properties primarily are leased to regional and national retail chain store operators. Most buildings are single-story structures with adequate parking on site to accommodate peak retail traffic periods. The properties tend to be on major thoroughfares with relatively high traffic counts, adequate access and proximity to a sufficient population base to constitute a suitable market or trade area for the retailer's business.

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Environmental Liabilities

        Effective in June 2005, we entered into a new seven-year environmental insurance policy on our property portfolio replacing the previous five-year environmental insurance policy. The limits on our new policy are $10 million per occurrence, and $50 million in the aggregate, subject to a $40,000 self insurance retention, per occurrence, for properties with underground storage tanks and a $100,000 self insurance retention, per occurrence, for all other properties. It is possible that our insurance could be insufficient to address any particular environmental situation and that, in the future, we could be unable to obtain insurance for environmental matters at a reasonable cost, or at all.

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        The following table sets forth certain information regarding our properties classified according to the business of the respective tenants, expressed as a percentage of our total rental revenue:

 
  Percentage of Rental Revenue(1)
 
 
  For the
Quarter
Ended
June 30,
2005

   
   
   
   
   
 
 
  For the Years Ended December 31,
 
30 Industries

 
  2004
  2003
  2002
  2001
  2000
 
Apparel stores   1.6 % 1.8 % 2.1 % 2.3 % 2.4 % 2.4 %
Automotive collision services   1.3   1.0   0.3        
Automotive parts   3.4   3.8   4.5   4.9   5.7   6.0  
Automotive service   7.8   7.7   8.3   7.0   5.7   5.8  
Automotive tire services   7.3   7.8   3.1   2.7   2.6   2.3  
Book stores   0.3   0.3   0.4   0.4   0.4   0.5  
Business services   0.1   0.1   0.1   0.1   0.1   0.1  
Child care   13.2   14.4   17.8   20.8   23.9   24.7  
Consumer electronics   1.4   2.1   3.0   3.3   4.0   4.9  
Convenience stores   18.8   19.2   13.3   9.1   8.4   8.4  
Crafts and novelties   0.4   0.5   0.6   0.4   0.4   0.4  
Drug stores   3.3   0.1   0.2   0.2   0.2   0.2  
Entertainment   2.2   2.3   2.6   2.3   1.8   2.0  
Equipment rental services   0.3   0.3   0.2        
Financial services   0.1   0.1          
General merchandise   0.4   0.4   0.5   0.5   0.6   0.6  
Grocery stores   0.7   0.8   0.4   0.5   0.6   0.6  
Health and fitness   3.8   4.0   3.8   3.8   3.6   2.4  
Home furnishings   4.0   4.1   4.9   5.4   6.0   5.8  
Home improvement   1.1   1.0   1.1   1.2   1.3   2.0  
Motor vehicle dealerships   2.6   0.6          
Office supplies   1.5   1.6   1.9   2.1   2.2   2.3  
Pet supplies and services   1.4   1.4   1.7   1.7   1.6   1.5  
Private education   0.8   1.1   1.2   1.3   1.5   1.4  
Restaurants   9.1   9.7   11.8   13.5   12.2   12.3  
Shoe stores   0.1   0.3   0.9   0.8   0.7   0.8  
Sporting goods   3.6   3.4   3.8   4.1   0.9    
Theaters   3.2   3.5   4.1   3.9   4.3   2.7  
Travel plazas   0.4   0.4   0.3        
Video rental   2.6   2.8   3.3   3.3   3.7   3.9  
Other   3.2   3.4   3.8   4.4   5.2   6.0  
   
 
 
 
 
 
 
Totals   100.0 % 100.0 % 100.0 % 100.0 % 100.0 % 100.0 %
   
 
 
 
 
 
 

(1)
Includes rental revenue for all properties owned by Realty Income at the end of each period presented (including revenue from properties reclassified to discontinued operations) and excludes properties owned by Crest Net.

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        The following table sets forth certain information regarding the timing of the initial lease term expirations (excluding extension options) on our 1,549 net leased, single-tenant retail properties as of June 30, 2005 (dollars in thousands):

 
  Total Portfolio
  Initial Expirations(3)
  Subsequent Expirations(4)
 
Year

  Total
Number of
Leases
Expiring(1)

  Rental
Revenue for
the Quarter
Ended
6/30/05(2)

  % of
Total
Rental
Revenue

  Number of
Leases
Expiring

  Rental
Revenue for
the Quarter
Ended
6/30/05

  % of
Total
Rental
Revenue

  Number of
Leases
Expiring

  Rental
Revenue for
the Quarter
Ended
6/30/05

  % of
Total
Rental
Revenue

 
2005   65   $ 1,277   2.8 % 49   $ 1,023   2.2 % 16   $ 254   0.6 %
2006   84     1,828   4.0   31     714   1.6   53     1,114   2.4  
2007   123     2,175   4.8   87     1,539   3.4   36     636   1.4  
2008   99     2,093   4.6   60     1,418   3.1   39     675   1.5  
2009   90     1,929   4.2   30     684   1.5   60     1,245   2.7  
2010   53     1,198   2.6   37     909   2.0   16     289   0.6  
2011   41     1,438   3.1   33     1,239   2.7   8     199   0.4  
2012   44     1,375   3.0   42     1,324   2.9   2     51   0.1  
2013   74     3,357   7.3   66     3,145   6.8   8     212   0.5  
2014   48     2,018   4.4   36     1,781   3.9   12     237   0.5  
2015   46     1,248   2.7   29     820   1.8   17     428   0.9  
2016   17     505   1.1   15     423   0.9   2     82   0.2  
2017   22     1,482   3.2   18     1,415   3.1   4     67   0.1  
2018   23     1,028   2.2   23     1,028   2.2          
2019   95     4,487   9.8   94     4,294   9.4   1     193   0.4  
2020   67     2,128   4.6   66     2,117   4.6   1     11   *  
2021   125     4,082   8.9   125     4,082   8.9          
2022   96     2,596   5.7   95     2,582   5.7   1     14   *  
2023   234     6,423   14.0   233     6,398   13.9   1     25   0.1  
2024   58     1,704   3.7   58     1,704   3.7          
2025   33     475   1.0   33     475   1.0          
2026   2     93   0.2   2     93   0.2          
2028   2     54   0.1   2     54   0.1          
2033   3     357   0.8   3     357   0.8          
2034   2     230   0.5   2     230   0.5          
2037   2     325   0.7   2     325   0.7          
2043   1     13   *           1     13   *  
   
 
 
 
 
 
 
 
 
 
Totals   1,549   $ 45,918   100.0 % 1,271   $ 40,173   87.6 % 278   $ 5,745   12.4 %
   
 
 
 
 
 
 
 
 
 

*
Less than 0.1%

(1)
Excludes four multi-tenant properties, 29 vacant and unleased properties, one of which is a multi-tenant property, and properties owned by Crest Net. The lease expirations for properties under construction are based on the estimated date of completion of those properties.

(2)
Includes rental revenue of $60 from properties reclassified to discontinued operations and excludes revenue of $1,480 from four multi-tenant properties and from 29 vacant and unleased properties at June 30, 2005.

(3)
Represents leases to the initial tenant of the property that are expiring for the first time.

(4)
Represents lease expirations on properties in the portfolio which have previously been renewed, extended or re-tenanted.

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        The following table sets forth certain state-by-state information regarding Realty Income's property portfolio (excluding properties owned by Crest Net) as of June 30, 2005 (dollars in thousands):

State

  Number of
Properties

  Percent
Leased

  Approximate
Leasable
Square Feet

  Rental Revenue
For the Quarter
Ended June 30,
2005(1)

  Percentage of
Rental
Revenue

 
Alabama   18   94 % 156,600   $ 427   0.9 %
Alaska   2   100   128,500     251   0.5  
Arizona   71   99   338,100     1,890   4.0  
Arkansas   8   88   48,800     139   0.3  
California   61   100   1,057,100     3,967   8.4  
Colorado   48   98   399,100     1,686   3.6  
Connecticut   16   100   245,600     927   2.0  
Delaware   16   100   29,100     338   0.7  
Florida   126   98   1,253,400     4,847   10.2  
Georgia   99   99   645,100     2,455   5.2  
Idaho   14   100   91,900     369   0.8  
Illinois   45   100   395,700     1,486   3.1  
Indiana   26   92   147,700     498   1.1  
Iowa   9   89   57,000     144   0.3  
Kansas   20   90   188,300     510   1.1  
Kentucky   12   100   41,200     262   0.6  
Louisiana   14   100   65,200     294   0.6  
Maryland   24   100   207,600     1,139   2.4  
Massachusetts   37   100   203,100     997   2.1  
Michigan   13   100   81,600     299   0.6  
Minnesota   18   100   211,600     538   1.1  
Mississippi   33   88   194,400     309   0.6  
Missouri   32   97   222,900     707   1.5  
Montana   2   100   30,000     74   0.2  
Nebraska   13   100   104,500     473   1.0  
Nevada   15   100   191,000     823   1.7  
New Hampshire   10   100   89,600     369   0.8  
New Jersey   26   100   200,100     1,062   2.2  
New Mexico   7   100   53,300     109   0.2  
New York   27   100   339,600     1,664   3.5  
North Carolina   50   98   325,000     1,397   2.9  
North Dakota   1   100   22,000     16   *  
Ohio   105   100   661,500     2,476   5.2  
Oklahoma   17   100   94,300     358   0.8  
Oregon   17   100   253,300     534   1.1  
Pennsylvania   81   100   481,300     2,271   4.8  
Rhode Island   1   100   3,500     29   0.1  
South Carolina   55   100   215,600     1,414   3.0  
South Dakota   1   100   6,500     24   *  
Tennessee   97   99   459,500     2,183   4.6  
Texas   175   97   1,653,000     4,291   9.1  
Utah   6   100   35,100     142   0.3  
Vermont   1   100   2,500     22   *  
Virginia   55   100   410,800     2,073   4.4  
Washington   37   100   243,900     694   1.5  
                         

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West Virginia   2   0   16,800     8   *  
Wisconsin   16   88   153,700     360   0.8  
Wyoming   3   100   14,900     53   0.1  
   
 
 
 
 
 
Totals/Average   1,582   98 % 12,470,900   $ 47,398   100.0 %
   
 
 
 
 
 

*
Less than 0.1%

(1)
Includes rental revenue for all properties owned by Realty Income at June 30, 2005 (including revenue from properties reclassified to discontinued operations of $60).

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UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

        The following is a general summary of the material United States federal income tax consequences to you of purchasing, owning and disposing of our common stock and the material United States federal income tax considerations related to our REIT election. This summary supersedes, in its entirety, the discussion in the accompanying prospectus entitled "United States Federal Income Tax Considerations Related to Our REIT Election." This summary is for general information only and is not tax advice.

        The information in this summary is based on:

in each case, as of the date of this prospectus supplement. In addition, the administrative interpretations and practices of the IRS include its practices and policies as expressed in private letter rulings that are not binding on the IRS except with respect to the particular taxpayers who requested and received those rulings. Future legislation, Treasury Regulations, administrative interpretations and practices and/or court decisions may adversely affect the tax considerations described in this prospectus supplement. Any such change could apply retroactively to transactions preceding the date of the change. We have not requested, and do not plan to request, any rulings from the IRS concerning our tax treatment, and the statements in this prospectus supplement are not binding on the IRS or any court. Thus, we can provide no assurance that the tax considerations contained in this summary will not be challenged by the IRS or will be sustained by a court if challenged by the IRS. This summary does not discuss any state, local or foreign tax considerations.

Taxation of Realty Income Corporation

        General.    We elected to be taxed as a REIT under Sections 856 through 860 of the Code commencing with our taxable year ended December 31, 1994. We believe we have been organized and have operated in a manner which allows us to qualify for taxation as a REIT under the Code commencing with our taxable year ended December 31, 1994. We currently intend to continue to operate in this manner. However, our qualification and taxation as a REIT depend upon our ability to meet the various qualification tests imposed under the Code, including through actual annual operating results, asset composition, distribution levels and diversity of stock ownership. Accordingly, no assurance can be given that we have operated or will continue to operate in a manner so as to qualify or remain qualified as a REIT. See the section below entitled "—Failure to Qualify." Further, the

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anticipated income tax treatment described in this prospectus supplement may be changed, perhaps retroactively, by legislative, administrative or judicial action at any time.

        The sections of the Code and the corresponding Treasury Regulations that relate to qualification and operation as a REIT are highly technical and complex. The following sets forth the material aspects of the sections of the Code that govern the federal income tax treatment of a REIT and the holders of common stock. This summary is qualified in its entirety by the applicable Code provisions, relevant rules and regulations promulgated under the Code, and administrative and judicial interpretations of these materials.

        Latham & Watkins LLP has acted as our tax counsel in connection with the filing of this prospectus supplement and our election to be taxed as a REIT. As a condition to the closing of the sale of our common stock, Latham & Watkins LLP will render an opinion to our underwriters to the effect that, commencing with our taxable year ended December 31, 1994, we have been organized and have operated in conformity with the requirements for qualification and taxation as a REIT under the Code, and our proposed method of operation will enable us to continue to meet the requirements for qualification and taxation as a REIT under the Code. It must be emphasized that this opinion will be based on various assumptions and representations as to factual matters, including representations made by us in a certificate to be provided by one of our officers. In addition, this opinion will be based upon our factual representations set forth in this prospectus supplement and the accompanying prospectus. Moreover, our qualification and taxation as a REIT depend upon our ability to meet, including through actual annual operating results, asset composition, distribution levels and diversity of stock ownership, the various qualification tests imposed under the Code discussed below, the results of which have not been and will not be reviewed or verified by Latham & Watkins LLP. Accordingly, no assurance can be given that our actual results of operation for any particular taxable year have satisfied or will satisfy those requirements. Latham & Watkins LLP has no obligation to update its opinion subsequent to the date it is rendered. See "—Failure to Qualify".

        Provided we qualify for taxation as a REIT, we generally will not be required to pay federal corporate income taxes on our net income that is currently distributed to our stockholders. This treatment substantially eliminates the "double taxation" that typically results from investment in a C corporation. A C corporation generally is required to pay tax at the corporate level. Double taxation generally means taxation that occurs once at the corporate level when income is earned and once again at the stockholder level when the income is distributed. We will be required to pay federal income tax, however, as follows:

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        Requirements for Qualification as a Real Estate Investment Trust.    The Code defines a REIT as a corporation, trust or association:

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        The Code provides that conditions (1) to (4), inclusive, must be met during the entire taxable year and that condition (5) must be met during at least 335 days of a taxable year of twelve months, or during a proportionate part of a taxable year of less than twelve months. Conditions (5) and (6) do not apply until after the first taxable year for which an election is made to be taxed as a REIT. For purposes of condition (6), pension funds and other specified tax-exempt entities generally are treated as individuals, except that a "look-through" exception applies with respect to pension funds.

        We believe that we have been organized, have operated and have issued sufficient shares of capital stock with sufficient diversity of ownership to allow us to satisfy conditions (1) through (7), inclusive, during the relevant time periods. In addition, our charter provides for restrictions regarding ownership and transfer of our shares. These restrictions are intended to assist us in continuing to satisfy the share ownership requirements described in conditions (5) and (6) above. These stock ownership and transfer restrictions are described in "Restrictions on Ownership and Transfers of Stock" in the accompanying prospectus. These restrictions, however, may not ensure that we will, in all cases, be able to satisfy the share ownership requirements described in conditions (5) and (6) above. If we fail to satisfy these share ownership requirements, except as provided in the next sentence, our status as a REIT will terminate. If, however, we comply with the rules contained in the applicable Treasury Regulations that require us to ascertain the actual ownership of our shares, and we do not know, and would not have known through the exercise of reasonable diligence, that we failed to meet the requirement described in condition (6) above, we will be treated as having met this requirement. See "—Failure to Qualify."

        In addition, we may not maintain our status as a REIT unless our taxable year is the calendar year. We have and will continue to have a calendar taxable year.

        Ownership of Partnership and Limited Liability Company Interests.    We may from time to time own and operate one or more properties through partnerships and limited liability companies. Treasury Regulations provide that if we are a partner in a partnership, we will be deemed to own our proportionate share of the assets of the partnership based on our interest in partnership capital, subject to special rules relating to the 10% REIT asset test described below. We will also be deemed to be entitled to our proportionate share of the income of the partnership. The character of the assets and gross income of the partnership retains the same character in our hands for purposes of Section 856 of the Code, including satisfying the gross income tests and the asset tests. In addition, the assets and items of income of any partnership in which we own a direct or indirect interest include such partnership's share of assets and items of income of any partnership in which it owns an interest. We have included a brief summary of the rules governing the federal income taxation of partnerships and their partners below in "—Tax Aspects of the Partnerships." The treatment described above also applies with respect to the ownership of interests in limited liability companies or other entities that are treated as partnerships for federal income tax purposes.

        We have direct or indirect control of certain partnerships and limited liability companies and intend to continue to operate them in a manner consistent with the requirements for qualification as a REIT. From time to time we may be a limited partner or non-managing member in certain partnerships and limited liability companies. If a partnership or limited liability company in which we own an

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interest takes or expects to take actions which could jeopardize our status as a REIT or require us to pay tax, we may be forced to dispose of our interest in that entity. In addition, it is possible that a partnership or limited liability company could take an action which could cause us to fail a REIT income or asset test, and that we would not become aware of such action in time to dispose of our interest in the applicable entity or take other corrective action on a timely basis. In such a case, unless we were entitled to relief, as described below, we could fail to qualify as a REIT.

        Ownership of Interests in Qualified REIT Subsidiaries.    We currently own and may from time to time own and operate certain properties through wholly-owned subsidiaries that we intend to be treated as "qualified REIT subsidiaries" under the Code. A corporation will qualify as our qualified REIT subsidiary if we own 100% of its outstanding stock and if we do not elect with the subsidiary to treat it as a "taxable REIT subsidiary," described below. A corporation that is a qualified REIT subsidiary is not treated as a separate corporation for federal income tax purposes, and all assets, liabilities and items of income, deduction and credit of a qualified REIT subsidiary are treated as assets, liabilities and items of income, deduction and credit (as the case may be) of the parent REIT for all purposes under the Code (including all REIT qualification tests). Thus, in applying the federal tax requirements described in this prospectus supplement, the subsidiaries in which we own a 100% interest (other than any taxable REIT subsidiaries) are ignored, and all assets, liabilities and items of income, deduction and credit of such subsidiaries are treated as our assets, liabilities and items of income, deduction and credit. A qualified REIT subsidiary is not required to pay federal income tax, and our ownership of the stock of such a qualified REIT subsidiary does not violate the restrictions on ownership of securities of any one issuer that constitute more than 10% of the voting power or value of such issuer's securities or more than 5% of the value of our total assets, as described below under "—Asset Tests."

        Ownership of Interests in Taxable REIT Subsidiaries.    A taxable REIT subsidiary of ours is a corporation other than a REIT in which we directly or indirectly hold stock and that has made a joint election with us to be treated as a taxable REIT subsidiary. A taxable REIT subsidiary also includes any corporation other than a REIT with respect to which a taxable REIT subsidiary owns, directly or indirectly, securities possessing more than 35% of the total voting power or value of the outstanding securities of such corporation. A taxable REIT subsidiary generally may engage in any business, including the provision of customary or noncustomary services to tenants of its parent REIT, except that a taxable REIT subsidiary may not directly or indirectly operate or manage a lodging or health care facility or directly or indirectly provide to any other person (under a franchise, license or otherwise) rights to any brand name under which any lodging or health care facility is operated. A taxable REIT subsidiary is required to pay federal income tax, and state and local income tax where applicable, as a regular C corporation. In addition, a taxable REIT subsidiary of ours may be prevented from deducting interest on debt that we directly or indirectly fund if certain tests regarding the taxable REIT subsidiary's debt-to-equity ratio and interest expense are not satisfied. We currently own 100% of the stock of a taxable REIT subsidiary and may from time to time own interests in other taxable REIT subsidiaries. See "—Asset Tests."

        Income Tests.    We must satisfy two gross income requirements annually to maintain our status as a REIT:

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        For these purposes, the term "interest" generally does not include any amount received or accrued, directly or indirectly, if the determination of all or some of the amount depends in any way on the income or profits of any person. An amount received or accrued generally will not be excluded from the term "interest," however, solely by reason of being based on a fixed percentage or percentages of receipts or sales.

        Rents we receive from a tenant will qualify as "rents from real property" for the purpose of satisfying the gross income requirements for a REIT described above only if the following conditions are met:

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        We generally do not intend to receive rent which fails to satisfy any of the above conditions. Notwithstanding the foregoing, we may have taken and may in the future take actions which fail to satisfy one or more of the above conditions to the extent that we determine, based on the advice of our tax counsel, that those actions will not jeopardize our tax status as a REIT.

        We believe that the aggregate amount of our nonqualifying income, from all sources, in any taxable year will not exceed the limits on nonqualifying income under the gross income tests. If we fail to satisfy one or both of the 75% or 95% gross income tests for any taxable year, we may nevertheless qualify as a REIT for the year if we are entitled to relief under certain provisions of the Code. Commencing with our taxable year beginning January 1, 2005, we generally may avail ourselves of the relief provisions if:

        For our taxable years ending on or before December 31, 2004, we generally may avail ourselves of the relief provisions if:

        It is not possible, however, to state whether in all circumstances we would be entitled to the benefit of these relief provisions. For example, if we fail to satisfy the gross income tests because nonqualifying income that we intentionally accrue or receive exceeds the limits on nonqualifying income, the IRS could conclude that our failure to satisfy the tests was not due to reasonable cause. If these relief provisions do not apply to a particular set of circumstances, we will not qualify as a REIT. As discussed above in "—Taxation of Realty Income Corporation—General," even if these relief provisions apply, and we retain our status as a REIT, a tax would be imposed with respect to our nonqualifying income. We may not always be able to comply with the gross income tests for REIT qualification despite our periodic monitoring of our income.

        Prohibited Transaction Income.    Any gain that we realize on the sale of property held as inventory or otherwise held primarily for sale to customers in the ordinary course of business will be treated as income from a prohibited transaction that is subject to a 100% penalty tax. Our gain would include any gain realized by our qualified REIT subsidiaries and our share of any gain realized by any of the partnerships, limited liability companies or qualified REIT subsidiaries in which we own an interest. This prohibited transaction income may also adversely affect our ability to satisfy the income tests for qualification as a REIT. Under existing law, whether property is held as inventory or primarily for sale to customers in the ordinary course of a trade or business is a question of fact that depends on all the facts and circumstances surrounding the particular transaction. We intend to hold our properties for investment with a view to long-term appreciation and to engage in the business of acquiring, developing and owning our properties. We have made, and may in the future make, occasional sales of the properties as are consistent with our investment objectives. We do not intend to enter into any sales that are prohibited transactions. The IRS may successfully contend, however, that one or more of these sales is subject to the 100% penalty tax.

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        Penalty Tax.    Any redetermined rents, redetermined deductions or excess interest we generate will be subject to a 100% penalty tax. In general, redetermined rents are rents from real property that are overstated as a result of services furnished by one of our taxable REIT subsidiaries to any of our tenants, and redetermined deductions and excess interest represent amounts that are deducted by a taxable REIT subsidiary for amounts paid to us that are in excess of the amounts that would have been deducted based on arm's length negotiations. Rents we receive will not constitute redetermined rents if they qualify for the safe harbor provisions contained in the Code.

        We do not believe that we have been, and do not expect to be, subject to this penalty tax, although our rental or service arrangements may not satisfy the safe-harbor provisions described above. These determinations are inherently factual, and the IRS has broad discretion to assert that amounts paid between related parties should be reallocated to clearly reflect their respective incomes. If the IRS successfully made such an assertion, we would be required to pay this 100% penalty tax on the excess of an arm's length fee for tenant services over the amount actually paid.

        Asset Tests.    At the close of each quarter of our taxable year, we also must satisfy four tests relating to the nature and diversification of our assets:

        As of the date of this prospectus supplement, we own 100% of the outstanding stock of Crest Net Lease, Inc. Crest Net Lease has elected, together with us, to be treated as a taxable REIT subsidiary. So long as Crest Net Lease qualifies as taxable REIT subsidiary, we will not be subject to the 5% asset test, the 10% voting securities limitation or the 10% value limitation with respect to our ownership of its securities. We or Crest Net Lease may acquire securities in other taxable REIT subsidiaries in the

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future. We believe that the aggregate value of our taxable REIT subsidiaries has not exceeded and will not exceed 20% of the value of our gross assets.

        With respect to each issuer in which we own an interest that does not qualify as a REIT, a qualified REIT subsidiary or a taxable REIT subsidiary, we believe that our ownership of the securities of any such issuer has complied with the 10% voting securities limitation, the 10% value limitation and the 5% value limitation. No independent appraisals have been obtained to support these conclusions, and there can be no assurance that the IRS will not disagree with our determinations of value.

        The asset tests described above must be satisfied not only at the end of the quarter during which we (directly or through our qualified REIT subsidiaries, partnerships or limited liability companies) acquire securities in the applicable issuer, but also each time we increase our ownership of securities of such issuer, including as a result of increasing our interest in a partnership or limited liability company which owns such securities, or acquiring other assets. For example, our indirect ownership of securities of an issuer may increase as a result of our capital contributions to, or the redemption of other partners' or members' interests in, a partnership or limited liability company in which we have an ownership interest. After initially meeting the asset tests at the close of any quarter, we will not lose our status as a REIT for failure to satisfy the asset tests at the end of a later quarter solely by reason of changes in asset values. If we fail to satisfy an asset test because we acquire securities or other property during a quarter (including as a result of an increase in our interests in a partnership or limited liability company), we may cure this failure by disposing of sufficient nonqualifying assets within 30 days after the close of that quarter. We believe that we have maintained and we intend to continue to maintain adequate records of the value of our assets to ensure compliance with the asset tests. In addition, we intend to take such actions within 30 days after the close of any quarter as may be required to cure any noncompliance.

        With respect to our taxable years ended on or before December 31, 2004, if we failed to cure any noncompliance with the asset tests within the 30-day period, we would cease to qualify as a REIT. Commencing with our taxable year beginning January 1, 2005, certain relief provisions may be available to us if we fail to satisfy the asset tests described above within the 30-day cure period. Under these provisions, we will be deemed to have met the 5% and 10% asset tests if the value of our nonqualifying assets (i) does not exceed the lesser of (a) 1% of the total value of our assets at the end of the applicable quarter or (b) $10,000,000 and (ii) we dispose of the nonqualifying assets or otherwise meet the asset tests within (a) six months after the last day of the quarter in which the failure to satisfy the asset tests is discovered or (b) the time period prescribed by Treasury Regulations to be issued. For violations due to reasonable cause and not willful neglect that are in excess of the de minimis exception described above, we may avoid disqualification as a REIT under any of the asset tests, after the 30-day cure period, by taking steps including (i) the disposition of sufficient nonqualifying assets to meet the asset tests or the taking any other actions so as to enable us to meet the asset tests within (a) six months after the last day of the quarter in which the failure to satisfy the asset tests is discovered or (b) the time period prescribed by Treasury Regulations to be issued, (ii) paying a tax equal to the greater of (a) $50,000 or (b) the highest corporate tax rate multiplied by the net income generated by the nonqualifying assets, and (iii) disclosing certain information to the IRS.

        Although we expect to satisfy the asset tests described above and we plan to take steps to ensure that we satisfy such tests for any quarter with respect to which retesting is to occur, there can be no assurance that such steps will always be successful or will not require a reduction in our overall interest in an issuer (including in a taxable REIT subsidiary). If we fail to timely cure any noncompliance with the asset tests, and cannot avail ourselves of the relief provisions described above, we will cease to qualify as a REIT.

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        Annual Distribution Requirements.    To maintain our qualification as a REIT, we are required to distribute dividends, other than capital gain dividends, to our stockholders in an amount at least equal to the sum of:

        Our "REIT taxable income" is computed without regard to the dividends paid deduction and our net capital gain. In addition, for purposes of this test, non-cash income means income attributable to leveled stepped rents, original issue discount on purchase money debt, cancellation of indebtedness, and any like-kind exchanges that are later determined to be taxable.

        In addition, if we dispose of any asset we acquired from a corporation which is or has been a C corporation in a transaction in which our basis in the asset is determined by reference to the basis of the asset in the hands of that C corporation, within the ten-year period following our acquisition of such asset, we would be required to distribute at least 90% (95% for taxable years beginning before January 1, 2001) of the after-tax gain, if any, we recognized on the disposition of the asset, to the extent that gain does not exceed the excess of (a) the fair market value of the asset on the date we acquired the asset over (b) our adjusted basis in the asset on the date we acquired the asset.

        We must pay these distributions in the taxable year to which they relate, or in the following taxable year if they are declared before we timely file our tax return for that year and paid on or before the first regular dividend payment following such declaration. Except as provided below, these distributions are taxable to our stockholders, other than tax-exempt entities, in the year in which paid. This is so even though these distributions relate to the prior year for purposes of our 90% distribution requirement. The amount distributed must not be preferential, which means that every stockholder of the class of stock to which a distribution is made must be treated the same as every other stockholder of that class, and no class of stock may be treated other than according to its dividend rights as a class. To the extent that we do not distribute all of our net capital gain, or distribute at least 90% (95% for taxable years beginning before January 1, 2001), but less than 100%, of our "REIT taxable income," as adjusted, we will be required to pay tax on the undistributed amount at regular corporate tax rates. We believe we have made, and intend to continue to make, timely distributions sufficient to satisfy these annual distribution requirements.

        We anticipate that we will generally have sufficient cash or liquid assets to enable us to satisfy our distribution requirements. However, from time to time, we may not have sufficient cash or other liquid assets to meet these distribution requirements because of timing differences between the actual receipt of income and actual payment of deductible expenses, and the inclusion of income and deduction of expenses in determining our taxable income. If these timing differences occur, we may need to arrange for short-term, or possibly long-term, borrowings or need to pay dividends in the form of taxable stock dividends in order to meet the distribution requirements.

        Under certain circumstances, we may be able to rectify an inadvertent failure to meet the 90% distribution requirement for a year by paying "deficiency dividends" to stockholders in a later year, which we may include in our deduction for dividends paid for the earlier year. Thus, we may be able to avoid being taxed on amounts distributed as deficiency dividends. However, we will be required to pay interest to the IRS based upon the amount of any deduction taken for deficiency dividends.

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        In addition, we will be required to pay a 4% excise tax to the extent we fail to distribute during each calendar year, or in the case of distributions with declaration and record dates falling within the last three months of the calendar year, by the end of January immediately following such year, at least 85% of our REIT ordinary income for such year, 95% of our REIT net capital gain income for such year and any undistributed taxable income from prior periods. Any REIT taxable income and net capital gain income on which this excise tax is imposed for any year is treated as an amount distributed during that year for purposes of calculating such tax.

        Distributions with declaration and record dates falling in the last three months of the calendar year which are paid to our stockholders by the end of January immediately following that year will be treated for federal income tax purposes as having been paid on December 31 of the prior year.

        Like-Kind Exchanges.    We may dispose of properties in transactions intended to qualify as like-kind exchanges under the Code. Like-kind exchanges are intended to result in the deferral of gain for federal income tax purposes. The failure of any such transaction to qualify as a like-kind exchange could subject us to federal income tax, possibly including the 100% prohibited transaction tax, depending on the facts and circumstances surrounding the particular transaction.

Failure to Qualify

        Commencing with our taxable year beginning January 1, 2005, specified cure provisions are available to us in the event that we violate a provision of the Code that would result in our failure to qualify as a REIT. These cure provisions reduce the instances that could lead to our failure to qualify as a REIT for violations due to reasonable cause and instead generally require the payment of a penalty. If we fail to qualify for taxation as a REIT in any taxable year, and the relief provisions of the Code do not apply, we will be required to pay tax, including applicable alternative minimum tax, on our taxable income at regular corporate tax rates. Distributions to our stockholders in any year in which we fail to qualify as a REIT will not be deductible by us, and we will not be required to distribute any amounts to our stockholders. As a result, we anticipate that our failure to qualify as a REIT would reduce the cash available for distribution by us to our stockholders. In addition, if we fail to qualify as a REIT, all distributions to our stockholders will be taxable at rates applicable to regular corporate dividends to the extent of our current and accumulated earnings and profits. In this event, subject to certain limitations under the Code, corporate distributees may be eligible for the dividends-received deduction. Unless entitled to relief under specific statutory provisions, we will also be disqualified from taxation as a REIT for the four taxable years following the year in which we lose our qualification. It is not possible to state whether in all circumstances we would be entitled to this statutory relief.

Tax Aspects of the Partnerships

        General.    From time to time, we may own, directly or indirectly, interests in various partnerships and limited liability companies. We expect these will be treated as partnerships (or disregarded entities) for federal income tax purposes. In general, entities that are classified as partnerships (or disregarded entities) for federal income tax purposes are "pass-through" entities which are not required to pay federal income tax. Rather, partners or members of such entities are allocated their shares of the items of income, gain, loss, deduction and credit of the entity, and are potentially required to pay tax on such income without regard to whether the partners or members receive a distribution of cash from the entity. We include in our income our allocable share of the foregoing items for purposes of computing our REIT taxable income, based on the partnership agreement. For purposes of applying the REIT income and asset tests, we include our pro rata share of the income generated by and the assets held by the partnerships and limited liability companies in which we own an interest, including their shares of the income and assets of any subsidiary partnerships and limited liability companies based on our capital interests. See "—Taxation of Realty Income Corporation."

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        Our ownership interests in such partnerships and limited liability companies involve special tax considerations, including the possibility that the IRS might challenge the status of these entities as partnerships (or disregarded entities), as opposed to associations taxable as corporations, for federal income tax purposes. If a partnership or limited liability company in which we own an interest, or one or more of its subsidiary partnerships or limited liability companies, were treated as an association, it would be taxable as a corporation and therefore be subject to an entity-level tax on its income. In this situation, the character of our assets and items of gross income would change, and could prevent us from satisfying the REIT asset tests and/or the REIT income tests (see "—Taxation of Realty Income Corporation—Asset Tests" and "—Taxation of Realty Income Corporation—Income Tests"). This, in turn, could prevent us from qualifying as a REIT. See "—Failure to Qualify" for a discussion of the effect of our failure to meet these tests. In addition, a change in the tax status of one or more of the partnerships or limited liability companies in which we own an interest might be treated as a taxable event. If so, we might incur a tax liability without any related cash distributions.

        Treasury Regulations that apply for tax periods beginning on or after January 1, 1997 provide that a domestic business entity not otherwise organized as a corporation may elect to be treated as a partnership or disregarded entity for federal income tax purposes. Unless it elects otherwise, an eligible entity in existence prior to January 1, 1997, will have the same classification for federal income tax purposes that it claimed under the entity classification Treasury Regulations in effect prior to this date. In addition, an eligible entity that did not exist or did not claim a classification prior to January 1, 1997 will be classified as a partnership or disregarded entity for federal income tax purposes unless it elects otherwise. All of the partnerships in which we own an interest intend to claim classification as partnerships or disregarded entities under these Treasury Regulations. As a result, we believe that these partnerships will be classified as partnerships or disregarded entities for federal income tax purposes. The treatment described above also applies with respect to our ownership of interests in limited liability companies that are treated as partnerships for tax purposes.

        Allocations of Income, Gain, Loss and Deduction.    A partnership or limited liability company agreement will generally determine the allocation of income and losses among partners or members. These allocations, however, will be disregarded for tax purposes if they do not comply with the provisions of Section 704(b) of the Code and the related Treasury Regulations. Generally, Section 704(b) of the Code and the related Treasury Regulations require that partnership and limited liability company allocations respect the economic arrangement of their partners or members. If an allocation is not recognized for federal income tax purposes, the relevant item will be reallocated according to the partners' or members' interests in the partnership or limited liability company, as the case may be. This reallocation will be determined by taking into account all of the facts and circumstances relating to the economic arrangement of the partners or members with respect to such item. The allocations of taxable income and loss in each of the partnerships and limited liability companies in which we own an interest are intended to comply with the requirements of Section 704(b) of the Code and the Treasury Regulations promulgated thereunder.

        Tax Allocations With Respect to the Properties.    Under Section 704(c) of the Code, income, gain, loss and deduction attributable to appreciated or depreciated property that is contributed to a partnership or limited liability company in exchange for an interest in the partnership or limited liability company must be allocated in a manner so that the contributing partner or member is charged with the unrealized gain or benefits from the unrealized loss associated with the property at the time of the contribution. The amount of the unrealized gain or loss is generally equal to the difference between the fair market value or book value and the adjusted tax basis of the contributed property at the time of contribution. These allocations are solely for federal income tax purposes and do not affect the book capital accounts or other economic or legal arrangements among the partners or members. Some of the partnerships and/or limited liability companies in which we own an interest were formed by way of

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contributions of appreciated property. The relevant partnership and/or limited liability company agreements require that allocations be made in a manner consistent with Section 704(c) of the Code.

Other Tax Consequences

        We may be required to pay tax in various state or local jurisdictions, including those in which we transact business. Our state and local tax treatment may not conform to the federal income tax consequences discussed above. Consequently, you should consult your tax advisors regarding the effect of state and local tax laws on us.

Federal Income Tax Considerations for Holders of Our Common Stock

        The following summary describes the principal United States federal income tax consequences to you of purchasing, owning and disposing of our common stock. This summary deals only with common stock held as a "capital asset" (generally, property held for investment within the meaning of Section 1221 of the Code). It does not address all the tax consequences that may be relevant to you in light of your particular circumstances. In addition, this discussion does not address the tax consequences relevant to persons who receive special treatment under the federal income tax law, except where specifically noted. Holders receiving special treatment include, without limitation:

        If you are considering purchasing our common stock, you should consult your tax advisors concerning the application of United States federal income tax laws to your particular situation as well as any consequences of the purchase, ownership and disposition of our common stock arising under the laws of any state, local or foreign taxing jurisdiction.

        When we use the term "U.S. stockholder," we mean a holder of shares of our common stock who, for United States federal income tax purposes:

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        If you hold shares of our common stock and are not a U.S. stockholder, you are a "non-U.S. stockholder."

Taxation of Taxable U.S. Stockholders Generally

        Distributions Generally.    Distributions out of our current or accumulated earnings and profits will be treated as dividends and, other than with respect to capital gain dividends and certain amounts which have previously been subject to corporate level tax discussed below, will be taxable to our taxable U.S. stockholders as ordinary income. See "—Tax Rates" below. As long as we qualify as a REIT, these distributions will not be eligible for the dividends-received deduction in the case of U.S. stockholders that are corporations. For purposes of determining whether distributions to holders of common stock are out of current or accumulated earnings and profits, our earnings and profits will be allocated first to our outstanding preferred stock and then to our outstanding common stock.

        To the extent that we make distributions on our common stock in excess of our current and accumulated earnings and profits, these distributions will be treated first as a tax-free return of capital to a U.S. stockholder. This treatment will reduce the adjusted tax basis which the U.S. stockholder has in its shares of common stock by the amount of the distribution, but not below zero. Distributions in excess of our current and accumulated earnings and profits and in excess of a U.S. stockholder's adjusted tax basis in its shares will be taxable as capital gain. Such gain will be taxable as long-term capital gain if the shares have been held for more than one year. Dividends we declare in October, November, or December of any year and which are payable to a stockholder of record on a specified date in any of these months will be treated as both paid by us and received by the stockholder on December 31 of that year, provided we actually pay the dividend on or before January 31 of the following year. U.S. stockholders may not include in their own income tax returns any of our net operating losses or capital losses.

        Capital Gain Dividends.    Dividends that we properly designate as capital gain dividends will be taxable to our taxable U.S. stockholders as a gain from the sale or disposition of a capital asset, to the extent that such gain does not exceed our actual net capital gain for the taxable year. These gains may be taxable to non-corporate U.S. stockholders at a 15% or 25% rate. U.S. stockholders that are corporations may, however, be required to treat up to 20% of some capital gain dividends as ordinary income. If, for any taxable year, we designate as a "capital gain dividend," as defined in Section 857 of the Code, any portion (the "Capital Gains Amount") of the dividends, as determined for federal income tax purposes, paid or made available for that year to holders of all classes of our stock, then, except as otherwise required by applicable law, the portion of the Capital Gains Amount that shall be allocable to the holders of the common stock will be in proportion to the amount that the total dividends, as determined for federal income tax purposes, paid or made available to holders of common stock for the year bear to the total dividends paid or made available for that year to holders of all classes of our stock. In addition, except as otherwise required by applicable law, we will make a similar allocation with respect to any undistributed long-term capital gains which are to be included in our stockholders' long-term capital gains, based on the allocation of the Capital Gains Amount which

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would have resulted if those undistributed long-term capital gains had been distributed as "capital gain dividends" by us to our stockholders.

        Passive Activity Losses and Investment Interest Limitations.    Distributions we make and gain arising from the sale or exchange by a U.S. stockholder of our shares will not be treated as passive activity income. As a result, U.S. stockholders generally will not be able to apply any "passive losses" against this income or gain. A U.S. stockholder may elect to treat capital gain dividends, capital gains from the disposition of stock and qualified dividend income as investment income for purposes of computing the investment interest limitation, but in such case, the stockholder will be taxed at ordinary income rates on such amount. Other distributions made by the Company, to the extent they do not constitute a return of capital, generally will be treated as investment income for purposes of computing the investment interest limitation.

        Retention of Net Capital Gains.    We may elect to retain, rather than distribute as a capital gain dividend, all or a portion of our net capital gains. If we make this election, we would pay tax on our retained net capital gains. In addition, to the extent we so elect, a U.S. stockholder generally would:

        Dispositions of Our Common Stock.    If a U.S. stockholder sells or disposes of shares of common stock, it will recognize gain or loss for federal income tax purposes in an amount equal to the difference between the amount of cash and the fair market value of any property received on the sale or other disposition and the holder's adjusted basis in the shares for tax purposes. This gain or loss will be long-term capital gain or loss if the holder has held the common stock for more than one year. However, if a U.S. stockholder recognizes loss upon the sale or other disposition of common stock that it has held for six months or less, after applying certain holding period rules, the loss recognized will be treated as a long-term capital loss to the extent the U.S. stockholder received distributions from us which were required to be treated as long-term capital gains.

Tax Rates

        The maximum tax rate for non-corporate taxpayers for (1) capital gains, including certain "capital gain dividends," has generally been reduced to 15% (although depending on the characteristics of the assets which produced these gains and on designations which we may make, certain capital gain dividends may be taxed at a 25% rate) and (2) "qualified dividend income" has generally been reduced to 15%. In general, dividends payable by REITs are not eligible for the reduced tax rate on corporate dividends, except to the extent that certain holding requirements have been met and the REIT's dividends are attributable to dividends received from taxable corporations (such as its taxable REIT subsidiaries) or to income that was subject to tax at the corporate/REIT level (for example, if it distributed taxable income that it retained and paid tax on in the prior taxable year). In addition, as described in "—Capital Gain Dividends" above, dividends properly designated by the REIT as "capital

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gain dividends" may be taxable to non-corporate U.S. stockholders at a 15% or 25% rate. The currently applicable provisions of the United States federal income tax laws relating to the 15% tax rate are currently scheduled to "sunset" or revert to the provisions of prior law effective for taxable years beginning after December 31, 2008, at which time the capital gains tax rate will be increased to 20% and the rate applicable to dividends will be increased to the tax rate then applicable to ordinary income.

Backup Withholding

        We report to our U.S. stockholders and the IRS the amount of dividends paid during each calendar year, and the amount of any tax withheld. Under the backup withholding rules, a stockholder may be subject to backup withholding with respect to dividends paid unless the holder is a corporation or comes within certain other exempt categories and, when required, demonstrates this fact, or provides a taxpayer identification number, certifies as to no loss of exemption from backup withholding, and otherwise complies with applicable requirements of the backup withholding rules. A U.S. stockholder that does not provide us with its correct taxpayer identification number may also be subject to penalties imposed by the IRS. Backup withholding is not an additional tax. Any amount paid as backup withholding will be creditable against the stockholder's federal income tax liability. In addition, we may be required to withhold a portion of capital gain distributions to any stockholders who fail to certify their non-foreign status. See "—Taxation of Non-U.S. Stockholders."

Taxation of Tax Exempt Stockholders

        Dividend income from us and gain arising upon a sale of shares generally will not be unrelated business taxable income to a tax-exempt stockholder, except as described below. This income or gain will be unrelated business taxable income, however, if a tax-exempt stockholder holds its shares as "debt-financed property" within the meaning of the Code or if the shares are used in a trade or business of the tax-exempt stockholder. Generally, debt-financed property is property the acquisition or holding of which was financed through a borrowing by the tax-exempt stockholder.

        For tax-exempt stockholders which are social clubs, voluntary employee benefit associations, supplemental unemployment benefit trusts, or qualified group legal services plans exempt from federal income taxation under Sections 501(c)(7), (c)(9), (c)(17) or (c)(20) of the Code, respectively, income from an investment in our shares will constitute unrelated business taxable income unless the organization is able to properly claim a deduction for amounts set aside or placed in reserve for specific purposes so as to offset the income generated by its investment in our shares. These prospective investors should consult their tax advisors concerning these "set aside" and reserve requirements.

        Notwithstanding the above, however, a portion of the dividends paid by a "pension-held REIT" may be treated as unrelated business taxable income as to some trusts that hold more than 10%, by value, of the interests in the REIT. A REIT will not be a "pension-held REIT" if it is able to satisfy the "not closely held" requirement without relying on the "look-through" exception with respect to certain trusts. As a result of limitations on the transfer and ownership of stock contained in our charter, we do not expect to be classified as a "pension-held REIT," and as a result, the tax treatment described in this paragraph should be inapplicable to our stockholders. However, because our stock will be publicly traded, we cannot guarantee that this will always be the case.

Taxation of Non-U.S. Stockholders

        The preceding discussion does not address the rules governing United States federal income taxation of the ownership and disposition of our common stock by persons that are non-U.S. stockholders. In general, non-U.S. stockholders may be subject to special tax withholding requirements

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on distributions from us and with respect to their sale or other disposition of our common stock, except to the extent reduced or eliminated by an income tax treaty between the United States and the non-U.S. stockholder's country. A non-U.S. stockholder who is a stockholder of record and is eligible for reduction or elimination of withholding must file an appropriate form with us in order to claim such treatment. Non-U.S. stockholders should consult their own tax advisors concerning the United States federal income tax consequences to them of an acquisition of shares of our common stock, including the United States federal income tax treatment of dispositions of interests in and the receipt of distributions from us.

Other Tax Consequences

        State, local and foreign income tax laws may differ substantially from the corresponding federal income tax laws, and this discussion does not purport to describe any aspect of the tax laws of any state, local or foreign jurisdiction. You should consult your tax advisor regarding the effect of state and local tax laws with respect to our tax treatment as a REIT and on an investment in our common stock.

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UNDERWRITING

        Subject to the terms and conditions contained in a purchase agreement between us and each of the underwriters, for whom Merrill Lynch, Pierce, Fenner & Smith Incorporated is acting as sole book-running manager, we have agreed to sell to the underwriters, and the underwriters severally have agreed to purchase from us, the number of shares listed opposite their names below.

                           Underwriter
                           



  Number
of Shares

Merrill Lynch, Pierce, Fenner & Smith
                      Incorporated
  1,640,000
A.G. Edwards & Sons, Inc.   410,000
Wachovia Capital Markets, LLC   410,000
Banc of America Securities LLC   307,500
Credit Suisse First Boston LLC   307,500
Raymond James & Associates, Inc.   307,500
RBC Capital Markets Corporation   307,500
BB&T Capital Markets, a Division of Scott & Stringfellow, Inc.   102,500
Robert W. Baird & Co. Incorporated   102,500
Stifel, Nicolaus & Company, Incorporated   102,500
Wells Fargo Securities, LLC   102,500
   
                      Total   4,100,000
   

        The underwriters have agreed to purchase all of the shares sold under the purchase agreement if any of these shares are purchased. If an underwriter defaults, the purchase agreement provides that the purchase commitments of the nondefaulting underwriters may be increased or the purchase agreement may be terminated.

        We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act of 1933, or to contribute to payments the underwriters may be required to make in respect of those liabilities.

        The underwriters are offering the shares, subject to prior sale, when, as and if issued to and accepted by them, subject to approval of legal matters by their counsel and other conditions contained in the purchase agreement, such as the receipt by the underwriters of officers' certificates and legal opinions. The underwriters reserve the right to withdraw, cancel or modify offers to the public and to reject orders in whole or in part.

Commissions and Discounts

        The underwriters have advised us that they propose initially to offer the shares to the public at the initial public offering price listed on the cover page of this prospectus supplement and to dealers at that price less a concession not in excess of $.67 per share. The underwriters may allow, and the dealers may reallow, a discount not in excess of $.10 per share to other dealers. After the initial public offering, the public offering price, concession and discount may be changed.

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        The following table shows the public offering price, underwriting discount and proceeds before expenses to Realty Income. This information assumes either no exercise or full exercise by the underwriters of their overallotment option.

 
  Per Share
  Without Option
  With Option
Public offering price   $23.79   $97,539,000   $112,169,850
Underwriting discount   $1.19   $4,879,000   $5,610,850
Proceeds, before expenses, to Realty Income Corporation   $22.60   $92,660,000   $106,559,000

        The expenses of this offering, not including the underwriting discount, are estimated at $300,000 and are payable by Realty Income. The underwriters have agreed to reimburse Realty Income for certain expenses incurred by Realty Income in connection with this offering.

Overallotment Option

        We have granted an option to the underwriters to purchase up to 615,000 additional shares at the initial public offering price less the underwriting discount and less any dividends or distributions declared or paid by us on the shares initially purchased by the underwriters but not on the shares to be purchased upon exercise of the overallotment option. The underwriters may exercise this option for 30 days from the date of this prospectus supplement solely to cover any overallotments. If the underwriters exercise this option, each underwriter will be obligated, subject to conditions contained in the purchase agreement, to purchase approximately the same percentage of those additional shares that the number of shares of common stock to be purchased by that underwriter as shown in the above table represents as a percentage of the total number of shares shown in that table.

No Sales of Similar Securities

        We have agreed, with exceptions, not to sell or transfer any common stock for 90 days after the date of this prospectus supplement without first obtaining the written consent of Merrill Lynch, Pierce, Fenner & Smith Incorporated. Specifically, we have agreed not to directly or indirectly:

whether any such swap, agreement or transaction is to be settled by delivery of common stock or other securities, in cash or otherwise.

        This lock-up provision applies to common stock and to securities convertible into or exchangeable or exercisable for common stock. Merrill Lynch, Pierce, Fenner & Smith Incorporated may, in its sole discretion and at any time or from time to time, without notice, release all or any of the shares or other securities subject to this lock-up provision.

        Our lock-up agreement contains an exception that permits us to issue shares of common stock in connection with acquisitions and in connection with joint ventures and similar arrangements, so long as the recipients of those shares agree not to sell or transfer those shares for 90 days after the date of this prospectus supplement. Our lock-up agreement also contains exceptions that permit us to issue shares

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of common stock to the underwriters in this offering, to issue shares of common stock upon the exercise of outstanding options, to issue shares and options pursuant to employee benefit plans and to issue shares of common stock pursuant to non-employee director stock plans.

New York Stock Exchange Listing

        Our common stock is listed on the New York Stock Exchange under the symbol "O."

Price Stabilization and Short Positions

        Until the distribution of the shares is completed, Securities and Exchange Commission rules may limit the underwriters and selling group members from bidding for or purchasing our common stock. However, the underwriters may engage in transactions that stabilize the price of the common stock, such as bids or purchases to peg, fix or maintain that price.

        If the underwriters create a short position in the common stock in connection with the offering, i.e., if they sell more shares than are listed on the cover of this prospectus supplement, the underwriters may reduce that short position by purchasing shares in the open market. The underwriters may also elect to reduce any short position by exercising all or part of the overallotment option described above. Purchases of the common stock to stabilize its price or to reduce a short position may cause the price of the common stock to be higher than it might be in the absence of such purchases.

        Neither we, nor any of the underwriters, makes any representation or prediction as to the direction or the magnitude of any effect that the transactions described above may have on the price of our common stock. In addition, neither we, nor any of the underwriters, makes any representation that the underwriters will engage in these transactions or that these transactions, once commenced, will not be discontinued without notice.

Other Relationships

        The underwriters and/or their affiliates have engaged in, and may in the future engage in, investment banking, commercial banking and/or other commercial and financial dealings with us in the ordinary course of business. They have received and may in the future receive customary fees and commissions for these transactions. In that regard, affiliates of some of the underwriters are lenders under our $250 million acquisition credit facility, and affiliates of some of the underwriters will be lenders under our new $300 million acquisition credit facility that is described under "Prospectus Supplement Summary—Recent Developments."

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LEGAL MATTERS

        The validity of the common stock to be issued in connection with this offering will be passed upon for us by Venable LLP, Baltimore, Maryland. Certain legal matters relating to this offering will be passed upon for us by Latham & Watkins LLP, Costa Mesa, California. Sidley Austin Brown & Wood LLP, San Francisco, California will act as counsel for the underwriters. William J. Cernius, a partner of Latham & Watkins LLP, beneficially owns 7,695 shares of our common stock. Eric S. Haueter, a partner of Sidley Austin Brown & Wood LLP, beneficially owns approximately 7,132 shares of our common stock and $20,000 aggregate principal amount of our 81/4% Monthly Income Senior Notes due 2008. Paul C. Pringle, a partner of Sidley Austin Brown & Wood LLP, beneficially owns approximately 49,965 shares of our common stock.


EXPERTS

        The consolidated financial statements and schedule of Realty Income Corporation and subsidiaries as of December 31, 2004 and 2003, and for each of the years in the three-year period ended December 31, 2004, and management's assessment of the effectiveness of internal control over financial reporting as of December 31, 2004, have been incorporated by reference in the accompanying prospectus in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference therein, and upon the authority of said firm as experts in accounting and auditing.


INCORPORATION BY REFERENCE

        As described in the accompanying prospectus under the caption "Incorporation of Information We File with the SEC," we have incorporated by reference in the accompanying prospectus specified documents that we have filed or may file with the SEC under the Securities Exchange Act of 1934, including our Annual Report on Form 10-K for the year ending December 31, 2004. However, no document or information that we have "furnished" or may in the future "furnish" with the SEC pursuant to the Exchange Act shall be incorporated by reference into the accompanying prospectus or this prospectus supplement.

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PROSPECTUS

$800,000,000

REALTY INCOME CORPORATION

DEBT SECURITIES, PREFERRED STOCK AND COMMON STOCK


        Realty Income Corporation may from time to time offer in one or more series (1) our debt securities, (2) shares of our preferred stock, $1.00 par value per share, or (3) shares of our common stock, $1.00 par value per share, with an aggregate public offering price of up to $800,000,000 on terms to be determined at the time of the offering. Our debt securities, our preferred stock and our common stock (collectively referred to as our securities), may be offered, separately or together, in separate series, in amounts, at prices and on terms that will be set forth in one or more prospectus supplements to this prospectus.

        The specific terms of the securities with respect to which this prospectus is being delivered will be set forth in the applicable prospectus supplement and will include, where applicable:

In addition, the specific terms may include limitations on actual, beneficial or constructive ownership and restrictions on transfer of the securities, in each case as may be appropriate to preserve our status as a real estate investment trust, or REIT, for federal income tax purposes. The applicable prospectus supplement will also contain information, where applicable, about United States federal income tax considerations, and any exchange listing of the securities covered by the prospectus supplement.

        Our common stock is traded on the New York Stock Exchange under the symbol "O." On February 19, 2004, the last reported sale price of the common stock was $42.75 per share.

        Our securities may be offered directly, through agents designated from time to time by us, or to or through underwriters or dealers. If any agents or underwriters are involved in the sale of any of our securities, their names, and any applicable purchase price, fee, commission or discount arrangement between or among them, will be set forth in the applicable prospectus supplement. None of our securities may be sold without delivery of the applicable prospectus supplement describing the method and terms of the offering of those securities.


        Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.


The date of this prospectus is March 23, 2004.



TABLE OF CONTENTS

 
  Page
The Company   1
Forward-Looking Statements   2
Risk Factors   4
Use of Proceeds   12
Ratios of Earnings to Fixed Charges   12
Description of Debt Securities   13
Description of Common Stock   25
General Description of Preferred Stock   28
Restrictions on Ownership and Transfers of Stock   35
United States Federal Income Tax Considerations Related to Our REIT Election   38
Plan of Distribution   49
Stockholder Rights Plan   49
Experts   50
Legal Matters   50
Where You Can Find More Information   51
Incorporation of Information We File with the SEC   51
Other Information   52

   



ABOUT THIS PROSPECTUS

        This prospectus is part of a registration statement that we filed with the SEC utilizing a "shelf" registration process. Under this shelf registration process, we may sell any combination of the securities described in this prospectus in one or more offerings up to a total dollar amount of $800,000,000. This prospectus provides you with a general description of the securities we may offer. Each time we sell securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may also add, update or change information contained in this prospectus. You should read both this prospectus and any prospectus supplement together with additional information described under the heading "Where You Can Find More Information."

        As allowed by SEC rules, this prospectus does not contain all the information you can find in the registration statement or the exhibits to the registration statement. For further information, we refer you to the registration statement, including its exhibits and schedules. Statements contained in this prospectus about the provisions or contents of any contract, agreement or any other document referred to are not necessarily complete. For each of these contracts, agreements or documents filed as an exhibit to the registration statement, we refer you to the actual exhibit for a more complete description of the matters involved. You should not assume that the information in this prospectus or any applicable prospectus supplement is accurate as of any date other than the date on the front of those documents. For further information about us or the securities offered under this prospectus, you should refer to the registration statement, which you can obtain from the SEC as described below under the heading "Where You Can Find More Information."

        All references to "Realty Income," "our" and "we" in this prospectus mean Realty Income Corporation and its wholly-owned subsidiaries and other entities controlled by Realty Income Corporation except where it is clear from the context that the term means only the issuer, Realty Income Corporation.



THE COMPANY

        Realty Income Corporation, the Monthly Dividend Company®, a Maryland corporation ("Realty Income," the "Company," "our" or "we") was organized to operate as an equity real estate investment trust, or REIT. Over the past 35 years Realty Income and its predecessors have been acquiring and owning freestanding retail properties that generate rental revenue under long-term (primarily 15 to 20 years) lease agreements. Our monthly distributions are supported by the cash flow from our portfolio of retail properties leased to regional and national retail chains.

        We are a fully integrated, self-administered real estate company with in-house acquisition, leasing, legal, retail and real estate research, portfolio management and capital markets expertise.

        Our primary business objective is to generate dependable monthly distributions from a consistent and predictable level of funds from operations, or FFO, per share. Additionally, we seek to increase distributions to stockholders and FFO per share through both active portfolio management and the acquisition of additional properties.

        Our portfolio management focus includes:

        Our acquisition of additional properties adheres to a focused strategy of primarily acquiring properties that are:

        As of December 31, 2003, we owned a diversified portfolio:

        Of the 1,404 properties in the portfolio, 1,399, or 99.6%, are single-tenant retail properties with the remaining five being multi-tenant properties. As of December 31, 2003, 1,374, or 98.2%, of the 1,399 single-tenant properties were leased with a weighted average remaining lease term (excluding extension options) of approximately 11.8 years.

        In addition to our real estate portfolio, at December 31, 2003 our subsidiary, Crest Net Lease, Inc. had invested $55.3 million in a portfolio of 37 properties. These properties are held for sale.

        We typically acquire, and then lease back, retail store locations from chain store operators, providing capital to the operators for continued expansion and other corporate purposes. Our

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acquisition and investment activities are concentrated in well-defined target markets and generally focus on middle-market retailers providing goods and services intended to satisfy basic consumer needs.

        Our net-lease agreements generally:

        We believe that the long-term ownership of an actively managed, diversified portfolio of retail properties under long-term, net-lease agreements can produce consistent, predictable income. We also believe that a portfolio of long-term leases that require tenants to be responsible for property expenses generally produces a more predictable income stream than many other types of real estate portfolios, while continuing to offer the potential for growth in rental income.

        Our net-leased retail properties are primarily leased to regional and national retail chain store operators. Generally, our properties contain single-story buildings and adequate parking on site to accommodate peak retail traffic periods. The properties tend to be on major thoroughfares with relatively high traffic counts and adequate access, egress and proximity to a sufficient population base to constitute a suitable market or trade area for the retailer's business.

        Our principal executive offices are located at 220 West Crest Street, Escondido, California 92025 and our telephone number is (760) 741-2111.


FORWARD-LOOKING STATEMENTS

        This prospectus contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. When used in this prospectus, the words estimated, anticipated and similar expressions are intended to identify forward-looking statements. Forward-looking statements are subject to risks, uncertainties, and assumptions about Realty Income Corporation, including, among other things:

        Future events and actual results, financial and otherwise, may differ materially from the results discussed in the forward-looking statements. In particular, some of the factors that could cause actual results to differ materially are:

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        Additional factors that may cause risks and uncertainties include those discussed in the sections entitled "Business" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2003.

        Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this prospectus. We undertake no obligation to publicly release the results of any revisions to these forward-looking statements that may be made to reflect events or circumstances after the date of this prospectus or to reflect the occurrence of unanticipated events. In light of these risks and uncertainties, the forward-looking events discussed in this prospectus might not occur.

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RISK FACTORS

        In evaluating an investment in our securities, you should carefully consider the following risk factors, in addition to the other risks and uncertainties described in this prospectus and the documents incorporated by reference therein, including the information appearing under the heading "Business—Properties—Matters Pertaining to Certain Properties and Tenants" and "Business—Other Items" in our Annual Report on Form 10-K for the year ended December 31, 2003. As used under this caption "Risk Factors," references to our capital stock include our common stock and any class or series of our preferred stock and references to our stockholders include holders of our common stock or any class or series of our preferred stock, in each case unless otherwise expressly stated or the context otherwise requires.

In order to grow we need to continue to acquire investment properties which may be subject to competitive pressures.

        We need to continue to acquire investment properties in order to grow. We face competition in the acquisition, operation and sale of property. We expect competition from:

        Some of these competitors are larger than we are and have greater financial resources. This competition may result in a higher cost for properties that we wish to purchase.

Our tenants' creditworthiness and ability to pay rent may be affected by competition in their industries.

        The tenants leasing our properties generally face significant competition from other operators. This competition may adversely impact:

As a property owner, we may be subject to unknown environmental liabilities.

        Investments in real property can create a potential environmental liability. An owner of property can face liability for environmental contamination created by the presence or discharge of hazardous substances on the property. We may face liability regardless of:

        There may be environmental problems associated with our properties of which we are unaware. In that regard, a number of our properties are leased to operators of oil change and tune-up facilities as well as convenience stores that sell petroleum-based fuels. These facilities, and some of our other properties, use, or may have used in the past, underground lifts or underground tanks for the storage of petroleum-based or waste products, which could create a potential for release of hazardous substances.

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        The presence of hazardous substances on a property may adversely affect our ability to sell the property and we may incur substantial remediation costs. Although our leases generally require our tenants to operate in compliance with all applicable federal, state and local environmental laws, ordinances and regulations and to indemnify us against any environmental liabilities arising from the tenants' activities on the property, we could nevertheless be subject to strict liability by virtue of our ownership interest, and we cannot assure you that our tenants could or would satisfy their indemnification obligations under the leases. The discovery of environmental liabilities attached to our properties could have a material adverse effect on our results of operations and financial condition and our ability to pay principal of and interest on our debt securities and other indebtedness and to make distributions to our stockholders.

        Compliance.    We have not been notified by any governmental authority, and are not otherwise aware, of any material noncompliance, liability or claim relating to hazardous or toxic substances or petroleum products in connection with any of the properties we currently own. Nevertheless, if environmental contamination should exist, we could be subject to strict liability for the contamination by virtue of our ownership interest.

        Insurance.    Since December 1996, we have maintained an environmental insurance policy on our property portfolio. The limit on our current policy is $10 million per occurrence and $50 million in the aggregate, subject to a $25,000 self insurance retention per occurrence for properties with underground storage tanks and a $100,000 self insurance retention per occurrence for all other properties. It is possible that our insurance will be insufficient to address any particular environmental situation and that we could be unable to continue to obtain insurance for environmental matters, at a reasonable cost or at all, in the future.

If we fail to qualify as a real estate investment trust, the amount of dividends we are able to pay would decrease, which would adversely affect the market price of our capital stock and could adversely affect the value of our debt securities.

        We believe that we are organized and have operated, commencing with our taxable year ended December 31, 1994, and we intend to continue to operate, so as to qualify as a "real estate investment trust" under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the "Code"). However, we cannot assure you that we have been organized or have operated in a manner that has satisfied the requirements for qualification as a REIT, or that we will continue to be organized in a manner that will allow us to qualify as a REIT, or that we will continue to be able to operate in a manner so that we qualify or remain qualified as a REIT.

        Qualification as a REIT involves the satisfaction of numerous requirements under highly technical and complex Code provisions for which there are only limited judicial and administrative interpretations, and the determination of various factual matters and circumstances not entirely within our control.

        For example, in order to qualify as a REIT, at least 95% of our gross income in each year must be derived from qualifying sources and we must pay distributions to stockholders aggregating annually at least 90% of our REIT taxable income (as defined in the Code and determined without regard to the dividends paid deduction and by excluding net capital gains).

        In the future it is possible that new legislation, regulations, administrative interpretations or court decisions will change the tax laws with respect to qualification as a REIT, or the federal income tax consequences of that qualification.

        If we were to fail to qualify as a REIT in any taxable year:

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        In addition, if we fail to qualify as a REIT, all distributions to stockholders will be taxable as regular corporate dividends to the extent of our current and accumulated earnings and profits, which also could have a material adverse effect on the market price of our capital stock and the value of our debt securities. Even if we qualify for and maintain our REIT status, we will be subject to specified federal, state and local taxes on our income and property. For example, if we have net income from a prohibited transaction, that income will be subject to a 100% tax. In addition, any taxable REIT subsidiary in which we own an interest, including Crest Net, will be required to pay federal and state taxes at the applicable tax rates on its income and property.

Distribution requirements imposed by law limit our flexibility.

        To maintain our status as a REIT for federal income tax purposes, we generally are required to distribute to our stockholders at least 90% of our REIT taxable income determined without regard to the dividends paid deduction and by excluding net capital gains each year.

        We are also subject to tax at regular corporate rates to the extent that we distribute less than 100% of our REIT taxable income (including net capital gains) each year.

        In addition, we are required to pay a 4% nondeductible excise tax to the extent that distributions we pay in a calendar year are less than the sum of 85% of our ordinary income for that calendar year, 95% of our capital gain net income for the calendar year, and any income that was not distributed in prior years.

        We intend to continue to make distributions to our stockholders to comply with the distribution requirements of the Code and to reduce exposure to federal income taxes and the nondeductible excise tax. Differences in timing between the receipt of income and the payment of expenses to arrive at taxable income, along with the effect of required debt amortization payments, could require us to borrow funds on a short-term basis to meet the distribution requirements that are necessary to achieve the tax benefits associated with qualifying as a REIT.

Real estate ownership is subject to particular economic conditions that may have a negative impact on our revenue.

        We are subject to all of the general risks associated with the ownership of real estate. In particular, we face the risk that rental revenue from our properties will be insufficient to cover operating expenses, debt service payments on indebtedness we incur and distributions on our stock. Additional real estate ownership risks include:

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An uninsured loss or a loss that exceeds the policy limits on our properties could subject us to lost capital or revenue on those properties.

        Under the terms and conditions of the leases currently in force on our properties, tenants generally are required to indemnify and hold us harmless from liabilities resulting from injury to persons, air, water, land or property, due to activities conducted on the properties, except for claims arising from the negligence or intentional misconduct of us or our agents. Additionally, tenants are generally required, at the tenant's expense, to obtain and keep in full force during the term of the lease, liability and property damage insurance policies. The insurance policies our tenants are required to maintain for property damage are generally in amounts not less than the full replacement cost of the improvements less slab, foundations, supports and other customarily excluded improvements. Our tenants are generally required to maintain general liability coverage varying between $1,000,000 and $10,000,000 depending on the tenant and the industry in which it operates.

        In addition to the indemnities and required insurance policies identified above, many of our properties are also covered by flood and earthquake insurance policies (subject to substantial deductibles) obtained and paid for by the tenants as part of their risk management programs. Additionally, we have obtained blanket liability, flood and earthquake (subject to substantial deductibles) and property damage insurance policies to protect us and our properties against loss should the indemnities and insurance policies provided by the tenants fail to restore the properties to their condition prior to a loss. However, should a loss occur that is uninsured or in an amount exceeding the combined aggregate limits for the policies noted above, or in the event of a loss that is subject to a substantial deductible under an insurance policy, we could lose all or part of our capital invested in, and anticipated revenue from, one or more of the properties, which could have a material adverse effect on our results of operations or financial condition and on our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions to our stockholders.

Compliance with the Americans With Disabilities Act of 1990 and fire, safety, and other regulations may require us to make unintended expenditures that could adversely impact our results of operations.

        Our properties are generally required to comply with the Americans with Disabilities Act of 1990, or the ADA. The ADA has separate compliance requirements for "public accommodations" and

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"commercial facilities," but generally requires that buildings be made accessible to people with disabilities. Compliance with the ADA requirements could require removal of access barriers and non-compliance could result in imposition of fines by the U.S. government or an award of damages to private litigants. The retailers to whom we lease properties are obligated by law to comply with the ADA provisions, and we believe that these retailers may be obligated to cover costs associated with compliance. If required changes involve greater expenditures than anticipated, or if the changes must be made on a more accelerated basis than anticipated, the ability of these retailers to cover costs could be adversely affected and we could be required to expend our own funds to comply with the provisions of the ADA, which could materially adversely affect our results of operations or financial condition and our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions to our stockholders. In addition, we are required to operate our properties in compliance with fire and safety regulations, building codes and other land use regulations, as they may be adopted by governmental agencies and bodies and become applicable to our properties. We may be required to make substantial capital expenditures to comply with those requirements and these expenditures could materially adversely affect our results of operations or financial condition and our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions to our stockholders.

Property taxes on our properties may increase without notice.

        Each of our properties is subject to real property taxes. The real property taxes on our properties and any other properties that we develop or acquire in the future may increase as property tax rates change and as those properties are assessed or reassessed by tax authorities.

Matters pertaining to particular properties and tenants.

        Twenty-six of our properties were available for sale or lease at December 31, 2003, 25 of which are single-tenant properties and one of which is a multi-tenant property. Seventeen of the properties had been previously leased to child care operators, five to restaurant operators, one to an automotive service operator, one (which is a multi-tenant property) to a grocery store operator, one to a home improvement operator and one to a shoe store operator. At December 31, 2003, 19 of our properties under lease were unoccupied and available for sublease by the tenants, all of which were current with their rent and other obligations.

        For 2003, our largest tenant was Children's World Learning Centers which accounted for approximately 8.2% of our rental revenue. Children's World Learning Centers operates child care facilities. However, as a result of acquisitions during 2003, The Pantry, Inc., an operator of convenience stores, was our largest tenant at December 31, 2003 based on annualized rental revenue. At December 31, 2003, The Pantry, Inc. accounted for 7.8% of our annualized rental revenue and Children's World accounted for 7.3% of our annualized rental revenue. Annualized rental revenue is calculated by multiplying the monthly contractual base rent for each of the applicable properties by 12 and adding the previous 12 month's historic percentage rent, excluding properties owned by Crest Net. In general, a downturn in the convenience store or child care industries, whether nationwide or limited to specific sectors of the United States, could adversely affect these tenants and other tenants in these industries, which in turn could materially adversely affect our financial position and results of operations and our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions to stockholders. In addition, a substantial number of our properties are leased to middle market retail chains which generally have more limited financial and other resources than certain upper market retail chains, and therefore are more likely to be adversely affected by a downturn in their respective businesses or in the regional or national economy generally.

        Our tenants in the child care, convenience store and restaurant industries accounted for approximately 17.8%, 13.3% and 11.8%, respectively, of our rental revenue during 2003. Based on

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annualized rental revenue at December 31, 2003, tenants in the child care, convenience store and restaurant industries accounted for approximately 15.3%, 15.9% and 10.5%, respectively, of our annualized rental revenue. A downturn in any of these industries generally, whether nationwide or limited to specific sectors of the United States, could adversely affect tenants in those industries, which in turn could materially adversely affect our financial position and results of operations and our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions to our stockholders. Individually, each of the other industries in our property portfolio accounted for less than 10% of both our rental revenue for 2003 and our annualized rental revenue as of December 31, 2003.

Our charter contains provisions that may delay, defer or prevent a change of control transaction.

        Our charter contains restrictions upon ownership of our common stock.    Our charter restricts any person from acquiring actual or constructive ownership of more than 9.8% (in value or number of shares, whichever is more restrictive) of our outstanding common stock. See "Restrictions on Ownership and Transfers of Stock." This provision, although intended to assist us in maintaining our status as a REIT for federal and/or state income tax purposes, could have anti-takeover effects and could reduce the possibility that a third party will attempt to acquire control of Realty Income.

        Our board of directors is divided into classes that serve staggered terms.    Our board of directors is divided into three classes with staggered terms. The staggered terms for directors may reduce the possibility of a tender offer or an attempt to complete a change of control transaction even if a tender offer or a change in control were in our stockholders' interests.

        We could issue preferred stock without stockholder approval.    Our charter authorizes our board of directors to issue up to 20,000,000 shares of preferred stock, including convertible preferred stock, without stockholder approval. The board of directors may establish the preferences, rights and other terms of any preferred stock we may issue, including the right to vote and the right to convert into common stock any shares issued. The issuance of preferred stock could delay or prevent a tender offer or a change of control even if a tender offer or a change of control were in our stockholders' interests. In addition, we have designated and authorized the issuance of up to 1,000,000 shares of Class A Junior Participating Preferred Stock in connection with our stockholder rights plan. As of March 10, 2004, we had outstanding 2,745,700 shares of 9.375% Class B Cumulative Redeemable Preferred Stock and 1,380,000 shares of 9.50% Class C Cumulative Redeemable Preferred Stock. See "General Description of Preferred Stock."

        We have a stockholder rights plan.    Each share of our common stock includes the right to purchase one one-hundredth (1/100th) of a share of our Class A Junior Participating Preferred Stock. The rights have anti-takeover effects and would cause substantial dilution to a person or group that attempts to acquire us on terms that our board of directors does not approve. We may redeem the shares for $0.01 per right prior to the time that a person or group has acquired beneficial ownership of 15% or more of our outstanding common stock. Therefore, the rights should not interfere with any merger or business combination approved by our board of directors. See "Stockholder Rights Plan."

        The ownership restrictions contained in our charter, the staggered terms for directors, the future issuance of preferred stock and our stockholder rights plan may:

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Terrorist attacks and other acts of violence or war may affect the value of our debt and equity securities, the markets in which we operate and our results of operations.

        Terrorist attacks may negatively affect our operations and your investment. There can be no assurance that there will not be further terrorist attacks against the United States or United States businesses. These attacks or armed conflicts may directly impact our physical facilities or the businesses of our tenants.

        Also, the United States is currently engaged in an armed conflict in Iraq which could have an impact on our tenants. The consequences of this or any other armed conflicts are unpredictable, and we may not be able to foresee events that could have an adverse effect on our business or your investment.

        More generally, any of these events could cause consumer confidence and spending to decrease or result in increased volatility in the U.S. and worldwide financial markets and economy. They also could result in or prolong an economic recession in the U.S. or abroad. Any of these occurrences could have a significant adverse impact on our operating results and revenues and on the market price of our capital stock and on the value of our debt securities, and may have a material adverse effect on our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions to our stockholders.

Other general risks

        Effect of market interest rates on the price of our capital stock and the value of our debt securities.    One of the factors that influences the price of our capital stock in public trading markets is the annual yield from distributions on our capital stock as compared to yields on other financial instruments. Thus, an increase in market interest rates will result in higher yields on other financial instruments, which could adversely affect the market price of our capital stock. An increase in market interest rates would also be likely to have an adverse effect on the value of our debt securities.

        Risks of debt financing.    At March 19, 2004, we had borrowings of approximately $103.2 million outstanding under our $250 million acquisition credit facility and $110 million in aggregate principal amount of our 73/4% Notes due 2007, $100 million in aggregate principal amount of our 81/4% Monthly Income Senior Notes due 2008, $20 million in aggregate principal amount of our 8% Notes due 2009, $100 million in aggregate principal amount of our 53/8% Senior Notes due 2013 and $150 million in aggregate principal amount of our 51/2% Senior Notes due 2015 were outstanding. As a result, we will be subject to risks associated with debt financing, including the risk that our cash flow could be insufficient to meet required payments on our debt, particularly in light of the fact that the interest rate on our credit facility is variable and could increase over time, and the risk that we may be unable to refinance or repay our debt as it comes due. In addition, our credit facility provides that, in the event of a failure to pay principal or interest on borrowings thereunder when due (subject to any applicable grace period), we and our subsidiaries may not pay any dividends on our capital stock, including the common stock. If this were to occur, it would likely have a material adverse effect on the market price of our capital stock and could have a material adverse effect on the value of our debt securities.

        Dependence on key personnel.    We depend on the efforts of our executive officers and key employees. The loss of the services of any of our executive officers and key employees could have a material adverse effect on our results of operations or financial condition and on our ability to pay the principal of and interest on our debt securities and other indebtedness and to make distributions to our stockholders. It is possible that we will not be able to recruit additional personnel with equivalent experience in the retail, net-leasing industry.

        Dilution of common stock.    Our future growth will depend in large part upon our ability to raise additional capital. If we were to raise additional capital through the issuance of equity securities, the

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interests of holders of common stock could be diluted. The interests of our common stockholders could also be diluted by the issuance of shares of common stock upon the exercise of outstanding options or pursuant to stock incentive plans. Likewise, our Board of Directors is authorized to cause Realty Income to issue preferred stock in one or more series, entitled to such dividends and voting and other rights as the Board of Directors may determine. Accordingly, the Board of Directors may authorize the issuance of preferred stock with voting, dividend and other similar rights that could dilute, or otherwise adversely affect, the interests of holders of our common stock.

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USE OF PROCEEDS

        Unless otherwise described in the applicable prospectus supplement, we intend to use the net proceeds from the sale of our securities for general corporate purposes, which may include, among other things, the repayment of indebtedness, the development and acquisition of additional properties and other acquisition transactions, and the expansion and improvement of certain properties in our portfolio.


RATIOS OF EARNINGS TO FIXED CHARGES

        The following table sets forth ratios of earnings to fixed charges for the periods shown. The ratios of earnings to fixed charges were computed by dividing earnings by fixed charges. For this purpose, earnings consist of net income before interest expense. Fixed charges consist of interest costs (including capitalized interest) and the amortization of debt issuance costs. In computing the ratios of earnings to combined fixed charges and preferred stock dividends, preferred stock dividends consist of dividends on our 9.375% Class B cumulative redeemable preferred stock and 9.50% Class C cumulative redeemable preferred stock.

 
  Year Ended December 31,
 
 
  1999
  2000
  2001
  2002
  2003
 
Ratio of Earnings to Fixed Charges   2.7 x 2.6 x 3.5 x 4.3 x 4.1 x
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends   2.3 x 2.0 x 2.6 x 3.0 x 3.0 x

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DESCRIPTION OF DEBT SECURITIES

General

        This prospectus describes certain general terms and provisions of our debt securities. When we offer to sell a particular series of debt securities, we will describe the specific terms of the series in a prospectus supplement or a pricing supplement. We will also indicate in the supplement whether the general terms and provisions described in this prospectus apply to a particular series of debt securities. Our debt securities will be our direct obligations and they may be secured or unsecured, senior or subordinated indebtedness. We may issue our debt securities under one or more indentures and each indenture will be dated on or before the issuance of the debt securities to which it relates. Additionally, each indenture must be in the form filed as an exhibit to the Registration Statement containing this prospectus or in a form incorporated by reference to this prospectus in a post-effective amendment to the Registration Statement or a Form 8-K. The form of indenture is subject to any amendments or supplements that may be adopted from time to time. We will enter into each indenture with a trustee and the trustee for each indenture may be the same. The indenture will be subject to, and governed by, the Trust Indenture Act of 1939, as amended. Because this description of debt securities is a summary, it does not contain all the information that may be important to you. You should read all provisions of our indenture and our debt securities to assure that you have all the important information you need to make any required decisions. All capitalized terms used, but not defined, in this section shall have the meanings set forth in the applicable indenture.

Terms

        The particular terms of any series of our debt securities will be described in a prospectus supplement. Additionally, any applicable modifications of or additions to the general terms of our debt securities described this prospectus and in the applicable indenture will also be described in a prospectus supplement. Accordingly, for a description of the terms of any series of our debt securities, you must refer to both the prospectus supplement relating to those debt securities and the description of the debt securities set forth in this prospectus. If any particular terms of our debt securities described in a prospectus supplement differ from any of the terms described in this prospectus, then those terms as set forth in the relevant prospectus supplement will control.

        Except as set forth in any prospectus supplement, our debt securities may be issued without limit as to aggregate principal amount, in one or more series, in each case as established from time to time by our Board of Directors, a committee of the Board of Directors or as set forth in the applicable indenture or one or more supplements to the indenture. All of our debt securities of one series need not be issued at the same time, and unless otherwise provided, a series may be reopened for issuance of additional debt securities without the consent of the holders of the debt securities of that series.

        Each indenture will provide that we may, but need not, designate more than one trustee for the indenture, each with respect to one or more series of our debt securities. Any trustee under an indenture may resign or be removed with respect to one or more series of our debt securities, and a successor trustee may be appointed to act with respect to that series. If two or more persons are acting as trustee to different series of our debt securities, each trustee shall be a trustee of a trust under the applicable indenture separate and apart from the trust administered by any other trustee and, except as otherwise indicated in this prospectus, any action taken by a trustee may be taken by that trustee with respect to, and only with respect to, the one or more series of debt securities for which it is trustee under the applicable indenture.

        This summary sets forth certain general terms and provisions of the indenture and our debt securities. For a detailed description of a specific series of debt securities, you should consult the

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prospectus supplement for that series. The prospectus supplement will contain all of the following information:

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        If the applicable prospectus supplement provides, we may issue the debt securities at a discount below their principal amount and provide for less than the entire principal amount of the debt securities to be payable upon declaration of acceleration of the maturity thereof ("Original Issue Discount Securities"). In those cases, any material U.S. federal income tax, accounting and other considerations applicable to Original Issue Discount Securities will be described in the applicable prospectus supplement.

Denominations, Interest, Registration and Transfer

        Unless otherwise described in the applicable prospectus supplement, the debt securities of any series will be issuable in denominations of $1,000 and integral multiples of $1,000.

        Unless otherwise described in the applicable prospectus supplement, we will pay the principal of (and premium, if any) and interest on any series of debt securities at the applicable trustee's corporate trust office, the address of which will be set forth in the applicable prospectus supplement; provided, however, that, unless otherwise provided in the applicable prospectus supplement, we may make interest payments (1) by check mailed to the address of the person entitled to the payment as that address appears in the applicable register for those debt securities, or (2) by wire transfer of funds to the person at an account maintained within the United States.

        Subject to certain limitations imposed on debt securities issued in book-entry form, the debt securities of any series will be exchangeable for any authorized denomination of other debt securities of the same series and of a like aggregate principal amount and tenor upon surrender of those debt securities at the office of any transfer agent we designate for that purpose. In addition, subject to certain limitations imposed on debt securities issued in book-entry form, the debt securities of any series may be surrendered for conversion or registration of transfer thereof at the office of any transfer agent we designate for that purpose. Every debt security surrendered for conversion, registration of transfer or exchange shall be duly endorsed or accompanied by a written instrument of transfer and the person requesting that transfer must provide evidence of title and identity satisfactory to us and the applicable transfer agent. No service charge will be made for any registration of transfer or exchange of any debt securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. We may at any time rescind the designation of any transfer agent appointed with respect to the debt securities of any series or approve a change in

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the location through which any transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for that series. We may at any time designate additional transfer agents with respect to any series of debt securities.

        Neither we nor any trustee shall be required to

Merger, Consolidation or Sale of Assets

        Each indenture will provide that we will not consolidate with, sell, lease or convey all or substantially all of our assets to, or merge with or into, any person unless

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Certain Covenants

        Existence.    Except as permitted under the heading above, entitled "—Merger, Consolidation or Sale of Assets," we will be required under each indenture to do or cause to be done all things necessary to preserve and keep in full force and effect our corporate existence, all material rights (by charter, bylaws and statute) and all material franchises; provided, however, that we shall not be required to preserve any right or franchise if our Board of Directors determines that the preservation thereof is no longer desirable in the conduct of our business.

        Maintenance of Properties.    Each indenture will require us to cause all of our material properties used or useful in the conduct of our business or the business of any Subsidiary to be maintained and kept in good condition, repair and working order and supplied with all necessary equipment and will require us to cause to be made all necessary repairs, renewals, replacements, betterments and improvements to those properties, as in our judgment may be necessary so that the business carried on in connection with those properties may be properly and advantageously conducted at all times; provided, however, that we and our Subsidiaries shall not be prevented from selling or otherwise disposing of these properties for value in the ordinary course of business.

        Insurance.    Each indenture will require us and each of our Subsidiaries to keep in force upon all of our properties and operations policies of insurance carried with responsible companies in amounts and covering all risks as shall be customary in the industry in accordance with prevailing market conditions and availability.

        Payment of Taxes and Other Claims.    Each indenture will require us to pay or discharge or cause to be paid or discharged, before the same shall become delinquent, (a) all taxes, assessments and governmental charges levied or imposed on us, our income, profits or property, or any Subsidiary, its income, profits or property and (b) all lawful claims for labor, materials and supplies that, if unpaid, might by law become a lien upon our property or the property of any Subsidiary; provided, however, that we shall not be required to pay or discharge or cause to be paid or discharged any tax, assessment, charge or claim the amount, applicability or validity of which we are contesting in good faith through appropriate proceedings.

        Provisions of Financial Information.    Whether or not we are subject to Section 13 or 15(d) of the Exchange Act, we will be required by each indenture, within 15 days after each of the respective dates by which we would have been required to file annual reports, quarterly reports and other documents with the Commission if we were subject to those Sections of the Exchange Act to:


        Except as may otherwise be provided in the prospectus supplement relating to any series of debt securities, the term "Subsidiary", as used in the indenture means any other Person of which more than 50% of (a) the equity or other ownership interests or (b) the total voting power of shares of capital stock or other ownership interests entitled (without regard to the occurrence of any contingency) to

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vote in the election of directors, managers, trustees or general or managing partners thereof is at the time owned by us or one or more of our Subsidiaries or a combination thereof.

        Additional Covenants.    If we make any additional covenants with respect to any series of debt securities, those covenants will be set forth in the prospectus supplement relating to those debt securities.

Events of Default, Notice and Waiver

        Unless otherwise provided in the applicable indenture, each indenture will provide that the following events are "events of default" for any series of debt securities issued under it:

The term "Significant Subsidiary" as used above has the meaning ascribed to the term in Rule 1-02 of Regulation S-X promulgated under the Securities Act, as the Regulation was in effect on January 1, 1996.

        If an event of default under any indenture with respect to debt securities of any series at the time outstanding occurs and is continuing, then the applicable trustee or the holders of not less than 25% in principal amount of the outstanding debt securities of that series may declare the principal amount (or, if the debt securities of that series are Original Issue Discount Securities or Indexed Securities, that portion of the principal amount as may be specified in the terms thereof) of all the debt securities of

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that series to be due and payable immediately by written notice thereof to us (and to the applicable trustee if given by the holders). However, at any time after the declaration of acceleration with respect to debt securities of a series has been made, but before a judgment or decree for payment of the money due has been obtained by the applicable trustee, the holders of not less than a majority of the principal amount of the outstanding debt securities of that series may rescind and annul the declaration and its consequences if:

Each indenture will also provide that the holders of not less than a majority in principal amount of the outstanding debt securities of any series may waive any past default with respect to that series and its consequences, except:

        Each indenture will require each trustee to give notice of a default under the indenture to the holders of debt securities within 90 days unless the default shall have been cured or waived, subject to certain exceptions; provided, however, that the trustee may withhold notice to the holders of any series of debt securities of any default with respect to that series (except a default in the payment of the principal of (or premium, if any) or interest on any debt security of that series or in the payment of any sinking fund installment in respect of any debt security of that series) if specified Responsible Officers of the trustee consider a withholding to be in those holders' interest.

        Each indenture will provide that no holders of debt securities of any series may institute any proceedings, judicial or otherwise, with respect to the indenture or for any remedy thereunder, except in the case of failure of the trustee, for 60 days, to act after it has received a written request to institute proceedings in respect of an event of default from the holders of not less than 25% in principal amount of the outstanding debt securities of that series, as well as an offer of indemnity reasonably satisfactory to it, and no direction inconsistent with the written request has been given to the trustee during the 60-day period by holders of a majority in principal amount of the outstanding debt securities of that series. This provision will not prevent, however, any holder of debt securities from instituting suit for the enforcement of payment of the principal of (and premium, if any) and interest on those debt securities at the respective due dates thereof.

        Each indenture will provide that, subject to provisions in the Trust Indenture Act of 1939 relating to its duties in case of default, the trustee is under no obligation to exercise any of its rights or powers under the indenture at the request or direction of any holders of any series of the debt securities then outstanding under the indenture, unless those holders shall have offered to the trustee reasonable security or indemnity. The holders of not less than a majority in principal amount of the outstanding debt securities of any series shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or of exercising any trust or power conferred upon the trustee; provided that the direction shall not conflict with any rule of law or the indenture, and provided further that the trustee may refuse to follow any direction that may involve the trustee in

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personal liability or that may be unduly prejudicial to the holders of debt securities of that series not joining in the direction to the trustee.

        Within 120 days after the close of each fiscal year, we will be required to deliver to the trustee a certificate, signed by one of several specified officers, stating whether or not the officer has knowledge of any default under the indenture and, if so, specifying each default and the nature and status thereof.

Modification of the Indenture

        Modifications and amendments of any indenture will be permitted with the consent of the holders of not less than a majority in principal amount of all outstanding debt securities of each series issued under the indenture affected by the modification or amendment; provided, however, that no modification or amendment may, without the consent of the holder of each debt security affected thereby,

        The holders of a majority in aggregate principal amount of outstanding debt securities of any series may, on behalf of all holders of debt securities of that series waive, insofar as that series is concerned, our compliance with certain restrictive covenants in the applicable indenture.

        We, along with the trustee, shall be permitted to modify and amend an indenture without the consent of any holder of debt securities for any of the following purposes:

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        Each indenture will provide that in determining whether the holders of the requisite principal amount of outstanding debt securities of a series have given any request, demand, authorization, direction, notice, consent or waiver described in the indenture or whether a quorum is present at a meeting of holders of debt securities,


        Each indenture will contain provisions for convening meetings of the holders of debt securities of a series. A meeting may be permitted to be called at any time by the trustee, and also, upon our request or request of the holders of at least 10% in principal amount of the outstanding debt securities of a series, in any case upon notice given as provided in the indenture. Except for any consent or waiver that must be given by the holder of each debt security affected thereby, any resolution presented at a meeting or at an adjourned meeting duly reconvened at which a quorum is present, may be adopted by the affirmative vote of the holders of a majority in principal amount of the outstanding debt securities of that series; provided, however, that, except as referred to above, any resolution with respect to any request, demand, authorization, direction, notice, consent, waiver or other action that may be made,

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given or taken by the holders of a specified percentage, which is less than a majority, in principal amount of the outstanding debt securities of the series may be adopted at a meeting or adjourned meeting duly reconvened at which a quorum is present by the affirmative vote of the holders of the specified percentage in principal amount of the outstanding debt securities of that series. Any resolution passed or decision taken at any meeting of holders of debt securities of any series duly held in accordance with the indenture will be binding on all holders of debt securities of that series. The persons holding or representing a majority in principal amount of the outstanding debt securities of a series shall constitute a quorum for a meeting of holders of that series; provided, however, that if any action is to be taken at a meeting with respect to a consent or waiver that may be given by the holders of not less than a specified percentage in principal amount of the outstanding debt securities of that series, the persons holding or representing the specified percentage in principal amount of the outstanding debt securities of that series will constitute a quorum.

        Notwithstanding the foregoing provisions, each indenture will provide that if any action is to be taken at a meeting of holders of debt securities of any series with respect to any request, demand, authorization, direction, notice, consent, waiver or other action that the indenture expressly provides may be made, given or taken by the holders of that series and one or more additional series: (a) there shall be no minimum quorum requirement for the meeting and (b) the principal amount of the outstanding debt securities of all those series that are entitled to vote in favor of the request, demand, authorization, direction, notice, consent, waiver or other action shall be taken into account in determining whether the request, demand, authorization, direction, notice, consent, waiver or other action has been made, given or taken under the indenture.

Discharge, Defeasance and Covenant Defeasance

        Unless otherwise indicated in the applicable prospectus supplement, upon our request any indenture shall cease to be of further effect with respect to any series of debt securities issued under the indenture specified in our request (except as to certain limited provisions of the indenture which shall survive) when either (a) all debt securities of that series have been delivered to the trustee for cancellation or (b) all debt securities of that series have become due and payable or will become due and payable within one year (or are scheduled for redemption within one year) and we have irrevocably deposited with the applicable trustee, in trust, funds in the currency or currencies, currency unit or units or composite currency or currencies in which those debt securities are payable an amount sufficient to pay the entire indebtedness on those debt securities in respect of principal (and premium, if any) and interest to the date of the deposit (if those debt securities have become due and payable) or to the stated maturity or redemption date, as the case may be.

        Each indenture will provide that, unless otherwise indicated in the applicable prospectus supplement, we may elect either to:

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in either case upon our irrevocable deposit with the applicable trustee, in trust, of an amount, in the currency or currencies, currency unit or units or composite currency or currencies in which those debt securities are payable at stated maturity, or Government Obligations (as defined below), or both, applicable to those debt securities that through the scheduled payment of principal and interest in accordance with their terms will provide money in an amount sufficient to pay the principal of (and premium, if any) and interest on those debt securities, and any mandatory sinking fund or analogous payments on those debt securities, on the scheduled due dates.

        A trust may only be established if, among other things, we have delivered to the applicable trustee an opinion of counsel (as specified in the applicable indenture) to the effect that the holders of those debt securities will not recognize income, gain or loss for U.S. federal income tax purposes as a result of the defeasance or covenant defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as would have been the case if the defeasance or covenant defeasance had not occurred. Additionally, in the case of defeasance, an opinion of counsel must refer to and be based on a ruling of the Internal Revenue Service (the "IRS") or a change in applicable U.S. federal income tax law occurring after the date of the applicable indenture. In the event of defeasance, the holders of those debt securities will thereafter be able to look only to the trust fund for payment of principal (and premium, if any) and interest.

        "Government Obligations" means securities that are (a) direct obligations of the United States of America or the government which issued the foreign currency in which the debt securities of a particular series are payable, for the payment of which its full faith and credit is pledged, or (b) obligations of a person controlled or supervised by and acting as an agency or instrumentality of the United States of America or the government which issued the foreign currency in which the debt securities of that series are payable, the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America or the other government, which, in either case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depository receipt issued by a bank or trust company as custodian with respect to any Government Obligation or a specific payment of interest on or principal of any Government Obligation held by a custodian for the account of the holder of a depository receipt; provided, however, that (except as required by law) the custodian is not authorized to make any deduction from the amount payable to the holder of the depository receipt from any amount received by the custodian in respect of the Government Obligation or the specific payment of interest on or principal of the Government Obligation evidenced by the depository receipt.

        Unless otherwise provided in the applicable prospectus supplement, if after we have deposited funds and/or Government Obligations to effect defeasance or covenant defeasance with respect to debt securities of any series,


then the indebtedness represented by that debt security will be deemed to have been, and will be, fully discharged and satisfied through the payment of the principal of (and premium, if any) and interest on that debt security as they become due out of the proceeds yielded by converting the amount so deposited in respect of that debt security into the currency, currency unit or composite currency in

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which the debt security becomes payable as a result of the election or Conversion Event based on the applicable market exchange rate. "Conversion Event" means the cessation of use of:

        In the event we effect a covenant defeasance with respect to any debt securities and those debt securities are declared due and payable because of the occurrence of any event of default, other than an event of default due to a breach of any of the covenants as to which there has been covenant defeasance (which covenants would no longer be applicable to those debt securities as a result of such covenant defeasance), the Government Obligations on deposit with the applicable trustee may not be sufficient to pay amounts due on those debt securities at the time of the acceleration resulting from the event of default. We would, however, remain liable to make payment of the amounts due at the time of acceleration.

        The applicable prospectus supplement may further describe the provisions, if any, permitting the defeasance or covenant defeasance, including any modifications to the provisions described above, with respect to the debt securities of or within a particular series.

Conversion Rights

        The terms and conditions, if any, upon which the debt securities are convertible into common stock or preferred stock will be set forth in the applicable prospectus supplement relating to those debt securities. The terms will include whether the debt securities are convertible into common stock or preferred stock, the conversion price (or manner of calculation thereof), the conversion period, provisions as to whether conversion will be at our option or the option of the holders, the events requiring an adjustment of the conversion price and provisions affecting conversion in the event of the redemption of the debt securities and any restrictions on conversion, including restrictions directed at maintaining our REIT status.

Unclaimed Payments

        We will be repaid for all amounts we pay to a paying agent or a trustee for the payment of the principal of or any premium or interest on any debt security that remains unclaimed at the end of two years after the principal, premium or interest has become due and payable, and the holder of that debt security may look only to us for payment of the principal, premium or interest.

Global Securities

        The debt securities of a series may be issued in whole or in part in the form of one or more global securities (the "Global Securities") that will be deposited with, or on behalf of, a depositary identified in the applicable prospectus supplement relating to that series. Global Securities may be issued in either registered or bearer form and in either temporary or permanent form. The specific terms of the depositary arrangement with respect to a series of debt securities will be described in the applicable prospectus supplement relating to that series.

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DESCRIPTION OF COMMON STOCK

        We have authority to issue 100,000,000 shares of our common stock, $1.00 par value per share. As of March 10, 2004, we had outstanding 38,009,717 shares of our common stock.

General

        The following description of our common stock sets forth certain general terms and provisions of our common stock to which any prospectus supplement may relate, including a prospectus supplement providing that our common stock will be issuable upon conversion of our debt securities or our preferred stock. The statements below describing our common stock are in all respects subject to and qualified in their entirety by reference to the applicable provisions of our charter and Bylaws.

Terms

        Subject to the preferential rights of any other shares or series of stock and to the provisions of our charter regarding the restrictions on transfer of stock, holders of our common stock are entitled to receive dividends when, as and if authorized by our board of directors and declared by us out of assets legally available therefor. The terms of our outstanding preferred stock provide in general that if we fail to declare or pay full cumulative dividends on that preferred stock for all past dividend periods and the then current dividend period, no dividends or distributions on our common stock (other than dividends payable in shares of common stock or other shares of our capital stock ranking junior to the outstanding preferred stock) may be declared or paid nor may we purchase or otherwise acquire any of our common stock (except in exchange for other capital stock ranking junior to the outstanding preferred stock and except for certain purchases of our stock for the purpose of preserving our qualification as a REIT for federal and/or state income tax purposes). Payment and authorization of dividends on our common stock and purchases of those shares by us may also be subject to certain restrictions if we fail to pay dividends on any other preferred stock we may issue in the future. If we were to experience liquidation, dissolution or winding up, holders of our common stock would be entitled to share equally and ratably in any assets available for distribution to them, after payment or adequate provision for payment of our debts and other liabilities and the preferential amounts owing with respect to our outstanding preferred stock.

        Subject to the provisions of our charter regarding the restrictions on transfer of stock (See "Restrictions on Ownership and Transfers of Stock" below), each outstanding share of our common stock entitles the holder to one vote on all matters submitted to a vote of stockholders, including the election of directors and, except as provided with respect to any other class or series of stock, the holders of such shares will possess the exclusive voting power. Our board of directors is divided into three classes of directors. The terms of the Class I, Class II and Class III directors will next expire in 2004, 2005 and 2006, respectively. Each class is chosen for three-year terms upon the expiration of their current terms and each year one class of directors will be elected by the stockholders. The staggered terms of directors may reduce the possibility of a tender offer or an attempt to change control of us even though a tender offer or change in control might be in the best interest of the stockholders.

        Holders of our common stock do not have cumulative voting rights in the election of directors, which means that holders of more than 50% of all the shares of our common stock voting for the election of directors can elect all the directors of the class standing for election at the time if they choose to do so and the holders of the remaining shares cannot elect any directors of that class. Holders of shares of common stock do not have preemptive rights, which means they have no right under the charter, Bylaws, or Maryland law to acquire any additional shares of common stock that may be issued by us at a subsequent date. Holders of shares of common stock have no preference, conversion, exchange, sinking fund, or redemption rights. Under Maryland law, stockholders generally

25



are not liable for the corporation's debts or obligations. All shares of common stock now outstanding are, and additional shares of common stock offered will be when issued, fully paid and nonassessable.

        Under the Maryland General Corporation Law, or MGCL, a Maryland corporation generally cannot dissolve, amend its charter, merge, sell all or substantially all of its assets, engage in a share exchange or engage in similar transactions outside the ordinary course of business unless approved by the affirmative vote of stockholders holding at least two-thirds of the shares entitled to vote on the matter unless a lesser percentage (but not less than a majority of all of the votes entitled to be cast on the matter) is set forth in the corporation's charter. Our charter provides that any such action shall be effective if approved by the affirmative vote of holders of shares entitled to cast a majority of all the votes entitled to be cast on the matter.

        Our charter authorizes our board of directors to reclassify any unissued shares of our common stock into other classes or series of stock and to establish the number of shares in each class or series and to set the preferences, conversion and other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications or terms or conditions of redemption for each such class or series.

Maryland Business Combination Law

        Under the MGCL, certain "business combinations" (including certain issuances of equity securities) between a Maryland corporation and any person who beneficially owns ten percent or more of the voting power of the corporation's shares, or an affiliate or associate of the corporation who beneficially owned ten percent or more of the voting power at any time within the preceding two years, in each case referred to as an interested stockholder, or an affiliate thereof are prohibited for five years after the most recent date on which the interested stockholder becomes an interested stockholder. Thereafter, any such business combination must be approved by two super-majority stockholder votes unless, among other conditions, the corporation's common stockholders receive a minimum price (as defined in the MGCL) for their shares and the consideration is received in cash or in the same form as previously paid by the interested stockholder for its common shares. The business combination provisions of the MGCL do not apply, however, to business combinations that are approved or exempted by the Board of Directors prior to the time that the interested stockholder becomes an interested stockholder. These provisions of the MGCL may delay, defer or prevent a transaction or a change in control of us that might involve a premium price for the common stock or otherwise be in the best interests of the stockholders.

Maryland Control Share Acquisitions Law

        The MGCL provides that "control shares" of a Maryland corporation acquired in a "control share acquisition" have no voting rights except to the extent approved by a vote of two-thirds of the votes entitled to be cast on the matter, excluding shares of stock owned by the acquiror or by officers or directors who are employees of the corporation. "Control shares" are shares of stock which, if aggregated with all other such shares of stock previously acquired by the acquiror or in respect of which the acquiror is able to exercise or direct the exercise of voting power (except solely by virtue of a revocable proxy), would entitle the acquiror to exercise voting power in electing directors within one of the following ranges of voting power; (1) one-tenth or more but less than one-third, (2) one-third or more but less than a majority, or (3) a majority or more of all voting power. Control shares do not include shares the acquiring person is then entitled to vote as a result of having previously obtained stockholder approval. A "control share acquisition" means the acquisition of control shares, subject to certain exceptions.

        A person who has made or proposes to make a control share acquisition, upon satisfaction of certain conditions (including an undertaking to pay expenses), may compel the board of directors of the

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corporation to call a special meeting of stockholders to be held within 50 days of demand to consider the voting rights of the shares. If no request for a meeting is made, the corporation may itself present the question at any stockholders meeting.

        If voting rights are not approved at the meeting or if the acquiring person does not deliver an acquiring person statement as required by the statute, then, subject to certain conditions and limitations, the corporation may redeem any and all of the control shares (except those for which the voting rights have previously been approved) for fair value determined, without regard to the absence of voting rights for the control shares, as of the date of the last control share acquisition by the acquiror or of any meeting of stockholders at which the voting rights of such shares are considered and not approved. If voting rights for control shares are approved at a stockholders meeting and the acquiror becomes entitled to vote a majority of the shares entitled to vote, all other stockholders may exercise appraisal rights. The fair value of the shares as determined for purposes of such appraisal rights may not be less than the highest price per share paid by the acquiror in the control share acquisition.

        "Control share acquisition" does not include (1) shares acquired in a merger, consolidation or share exchange if the corporation is a party to the transaction or (b) acquisitions exempted by the charter or bylaws of the corporation, adopted at any time before the acquisition of the shares.

        As permitted by the MGCL, the Bylaws contain a provision exempting us from the control share acquisition statute. That Bylaw provision states that the control share statute shall not apply to any acquisition by any person of shares of our stock. There can be no assurance that such provision will not be amended or eliminated by the Board of Directors at any time in the future.

Restrictions on Ownership

        For us to qualify as a REIT under the Internal Revenue Code of 1986, as amended, not more than 50% in value of our outstanding stock may be owned, actually or constructively, by five or fewer individuals (defined in the Code to include certain entities) during the last half of a taxable year. To assist us in meeting this requirement and certain other requirements relating to our tax status as a REIT, we may take certain actions to limit the actual, beneficial or constructive ownership by a single person or entity of our outstanding equity securities. See "Restrictions on Ownership and Transfers of Stock" below.

Transfer Agent

        The registrar and transfer agent for our common stock is The Bank of New York.

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GENERAL DESCRIPTION OF PREFERRED STOCK

        We are authorized to issue 20,000,000 shares of preferred stock, $1.00 par value per share. As of March 10, 2004, we had outstanding 2,745,700 shares of 93/8% Class B cumulative redeemable preferred stock and 1,380,000 shares of 91/2% Class C cumulative redeemable preferred stock. In addition, our board of directors has authorized the issuance of 1,000,000 shares of our Class A Junior Participating Preferred Stock (the "Class A Preferred Stock") pursuant to our stockholder rights plan, although no shares of such class are currently outstanding. See "Stockholder Rights Plan."

General

        The following description of our preferred stock sets forth certain general terms and provisions of our preferred stock to which any prospectus supplement may relate. The statements below describing our preferred stock are in all respects subject to and qualified in their entirety by reference to the applicable provisions of our charter (including the applicable articles supplementary designating the terms of a series of preferred stock) and our bylaws. You should review the articles supplementary for the Class B cumulative redeemable preferred stock and the articles supplementary for the Class C cumulative redeemable preferred stock, copies of which may be obtained as described below under "Where You Can Find More Information."

        Our charter authorizes our board of directors to classify any unissued shares of preferred stock and to reclassify any previously classified but unissued shares of any class or series. Prior to issuance of shares of each series, our board is required by the MGCL and our charter to set, subject to the provisions of our charter regarding the restrictions on transfer of stock, the terms, preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms or conditions of redemption for each such series. Thus, the board could authorize the issuance of shares of preferred stock with terms and conditions which could have the effect of delaying, deferring or preventing a transaction or a change in control of us that might involve a premium price for holders of our common stock or otherwise be in their best interest. Any additional preferred stock will, when issued, be fully paid and nonassessable and will have no preemptive rights. The following discussion is applicable to any additional preferred stock that we may issue.

        You should refer to the prospectus supplement relating to the preferred stock offered thereby for specific terms of and other information concerning the preferred stock, including:

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Rank

        Unless otherwise specified in the applicable prospectus supplement, the preferred stock of any series or class will rank, with respect to the payment of dividends and the distribution of assets upon our liquidation, dissolution or winding up:


For these purposes, the term "equity securities" does not include convertible debt securities.

Dividends

        Holders of shares of our preferred stock of each series or class shall be entitled to receive, when, as and if authorized by our board of directors and declared by us, out of our assets legally available for payment, cash dividends at rates and on dates as will be set forth in the applicable prospectus supplement. Each dividend shall be payable to holders of record as they appear on our stock transfer books on the record dates as shall be fixed by our board of directors.

        Dividends on any series or class of our preferred stock may be cumulative or noncumulative, as provided in the applicable prospectus supplement. Dividends, if cumulative, will be cumulative from and after the date set forth in the applicable prospectus supplement. If our board of directors fails to authorize a dividend payable on a dividend payment date on any series or class of preferred stock for which dividends are noncumulative, then the holders of such series or class of preferred stock will have no right to receive a dividend in respect of the dividend period ending on that dividend payment date, and we will have no obligation to pay the dividend accrued for such period, whether or not dividends on such series or class are declared or paid for any future period.

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        If any shares of preferred stock of any series or class are outstanding, no full dividends shall be declared or paid or set apart for payment on the preferred stock of any other series or class ranking, as to dividends, on a parity with or junior to the preferred stock of that series or class for any period unless:

        When dividends are not paid in full (or a sum sufficient for the full payment is not set apart) upon the shares of preferred stock of any series or class and the shares of any other series or class of preferred stock ranking on a parity as to dividends with the preferred stock of that series or class, then all dividends declared on shares of preferred stock of that series or class and any other series or class of preferred stock ranking on a parity as to dividends with that preferred stock shall be declared pro rata so that the amount of dividends declared per share on the preferred stock of that series or class and such other series or class of preferred stock shall in all cases bear to each other the same ratio that accrued and unpaid dividends per share on the shares of preferred stock of such series or class (which shall not include any accumulation in respect of unpaid dividends for prior dividend periods if such preferred stock does not have a cumulative dividend) and such other series or class of preferred stock (which, in the case of such other series or class of preferred stock, shall not include any accumulation in respect of unpaid dividends for prior dividend periods if such other series or class of preferred stock does not have a cumulative dividend) bear to each other. No interest, or sum of money in lieu of interest, shall be payable in respect of any dividend payment or payments on preferred stock of such series or class that may be in arrears.

        Except as provided in the immediately preceding paragraph, unless: if that series or class of preferred stock has a cumulative dividend, full cumulative dividends on the preferred stock of such series or class have been or contemporaneously are declared and paid or declared and a sum sufficient for the payment thereof is set apart for payment for all past dividend periods and the then current dividend period; or if that series or class of preferred stock does not have a cumulative dividend, full dividends on the preferred stock of such series or class have been or contemporaneously are declared and paid or declared and a sum sufficient for the payment thereof is set apart for payment for the then current dividend period, then no dividends (other than in the common stock or other stock of ours ranking junior to the preferred stock of that series or class as to dividends and as to the distribution of assets upon liquidation, dissolution or winding up of us) shall be declared or paid or set aside for payment nor shall any other distribution be declared or made on the common stock or any other class or series of stock of ours ranking junior to or on a parity with the preferred stock of that series or class as to dividends or as to the distribution of assets upon liquidation, dissolution or winding up of us, nor shall any shares of the common stock or any other stock of ours ranking junior to or on a parity with the preferred stock of that series or class as to dividends or as to the distribution of assets upon liquidation, dissolution or winding up of us be redeemed, purchased or otherwise acquired for any consideration (or any amounts be paid to or made available for a sinking fund for the redemption of any shares of any such stock) by us (except by conversion into or exchange for other stock of ours ranking junior to the preferred stock of that series or class as to dividends and as to the distribution of assets upon liquidation, dissolution or winding up of us); provided, however, that the foregoing shall not prevent the purchase or acquisition of shares of our stock to preserve our status as a REIT for federal and/or state income tax purposes.

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        Any dividend payment made on shares of a series or class of preferred stock shall first be credited against the earliest accrued but unpaid dividend due with respect to shares of that series or class that remains payable.

Redemption

        If the applicable prospectus supplement so states, the shares of preferred stock will be subject to mandatory redemption or redemption at our option, as a whole or in part, in each case on the terms, at the times and at the redemption prices set forth in that prospectus supplement.

        The prospectus supplement relating to a series or class of preferred stock that is subject to mandatory redemption will specify the number of shares of that preferred stock that shall be redeemed by us in each year commencing after a date to be specified, at a redemption price per share to be specified, together with an amount equal to all accumulated and unpaid dividends thereon (which shall not, if such preferred stock does not have a cumulative dividend, include any accumulation in respect of unpaid dividends for prior dividend periods) to the date of redemption. The redemption price may be payable in cash or other property, as specified in the applicable prospectus supplement. If the redemption price for preferred stock of any series or class is payable only from the net proceeds of the issuance of our stock, the terms of that preferred stock may provide that, if no such stock shall have been issued or to the extent the net proceeds from any issuance are insufficient to pay in full the aggregate redemption price then due, that preferred stock shall automatically and mandatorily be converted into shares of our applicable stock pursuant to conversion provisions specified in the applicable prospectus supplement.

        Notwithstanding the foregoing, unless:

then no shares of that series or class of preferred stock shall be redeemed unless all outstanding shares of preferred stock of that series or class are simultaneously redeemed; provided, however, that the foregoing shall not prevent the purchase or acquisition of shares of preferred stock of that series or class to preserve our REIT status or pursuant to a purchase or exchange offer made on the same terms to holders of all outstanding shares of preferred stock of that series or class. In addition:

we shall not purchase or otherwise acquire directly or indirectly any shares of preferred stock of such series or class (except by conversion into or exchange for stock of ours ranking junior to the preferred stock of that series or class as to dividends and upon liquidation, dissolution and winding up of us);

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provided, however, that the foregoing shall not prevent the purchase or acquisition of shares of preferred stock of such series or class to preserve our REIT status or pursuant to a purchase or exchange offer made on the same terms to holders of all outstanding shares of preferred stock of that series or class.

        If fewer than all the outstanding shares of preferred stock of any series or class are to be redeemed, the number of shares to be redeemed will be determined by us and those shares to be redeemed shall be selected pro rata (as nearly as may be practicable without creating fractional shares) or by any other equitable method determined by us, but that will not result in the automatic transfer of any shares of preferred stock of such series or class to a trust in order to avoid adversely affecting our REIT status.

        Notice of redemption will be mailed at least 30, but not more than 60, days before the redemption date to each holder of record of a share of preferred stock of any series or class to be redeemed at the address shown on our stock transfer books. Each notice shall state:

        If fewer than all the shares of preferred stock of any series or class are to be redeemed, the notice mailed to each holder thereof shall also specify the number of shares of preferred stock to be redeemed from such holder and, upon redemption, a new certificate shall be issued representing the unredeemed shares without cost to the holder thereof. If notice of redemption of any shares of preferred stock has been given and if the funds necessary for the redemption have been irrevocably set aside by us in trust for the benefit of the holders of the shares of preferred stock so called for redemption, then from and after the redemption date dividends will cease to accrue on such shares of preferred stock, such shares of preferred stock shall no longer be deemed outstanding and all rights of the holders of such shares will terminate, except the right to receive the redemption price plus accrued and unpaid dividends, if any.

        Notwithstanding the foregoing and except as otherwise may be required by law, the persons who were holders of record of shares of any class or series of preferred stock at the close of business on a record date for the payment of dividends will be entitled to receive the dividend payable on the corresponding dividend payment date notwithstanding the redemption of those shares after the record date and on or prior to the dividend payment date or our default in the payment of the dividend due on that dividend payment date. In that case, the amount payable on the redemption of those shares of preferred stock will not include that dividend. Except as provided in the preceding sentence and except to the extent that accrued and unpaid dividends are payable as part of the redemption price, we will make no payment or allowance for unpaid dividends, whether or not in arrears, on shares of preferred stock called for redemption.

        Subject to applicable law and the limitation on purchases when dividends on a series or class of preferred stock are in arrears, we may, at any time and from time to time, purchase any shares of such series or class of preferred stock in the open market, by tender or by private agreement.

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Liquidation Preference

        Upon any voluntary or involuntary liquidation, dissolution or winding up of us, the holders of each series or class of our preferred stock shall be entitled to receive, out of our assets legally available for distribution to our shareholders, a liquidating distribution in the amount of the liquidation preference per share (set forth in the applicable prospectus supplement) applicable to that class or series, plus an amount equal to any accrued and unpaid dividends to the date of payment (which shall not include any accumulation in respect of unpaid dividends for prior dividend periods if the preferred stock of such class or series does not have a cumulative dividend), before any distribution or payment will be made to the holders of common stock or any other series or class of stock ranking junior to that series or class of preferred stock in the distribution of assets upon any liquidation, dissolution or winding up of us, but subject to the preferential rights of the holders of shares of any class or series of our stock ranking senior to such series or class of preferred stock with respect to the distribution of assets upon liquidation, dissolution or winding up. After payment of the full amount of the liquidating distributions to which they are entitled, the holders of that series or class of preferred stock, as such, will have no right or claim to any of our remaining assets. If, upon any such voluntary or involuntary liquidation, dissolution or winding up, the assets legally available therefor are insufficient to pay the full amount of the liquidating distributions payable on all outstanding shares of any series or class of preferred stock and the full amount of the liquidating distributions payable on all shares of any other classes or series of our stock ranking on a parity with that series or class of preferred stock in the distribution of assets upon liquidation, dissolution or winding up, then the holders of that series or class of preferred stock and all other such classes or series of capital stock shall share ratably in any such distribution of assets in proportion to the full liquidating distributions to which they would otherwise be respectively entitled.

        If liquidating distributions shall have been made in full to all holders of any series or class of preferred stock, our remaining assets will be distributed among the holders of any other classes or series of stock ranking junior to that series or class of preferred stock upon liquidation, dissolution or winding up, according to their respective rights and preferences and in each case according to their respective number of shares. For those purposes, neither the consolidation or merger of us with or into any other entity, nor the sale, lease, transfer or conveyance of all or substantially all of our property or business, shall be deemed to constitute a liquidation, dissolution or winding up of us.

Voting Rights

        Except as may be set forth in the applicable prospectus supplement, whenever dividends on any shares of preferred stock of any series or class shall be in arrears for six or more quarterly dividend periods, whether or not consecutive, the number of directors constituting our Board of Directors will be automatically increased by two (if not already increased by two by reason of the election of directors by the holders of any other class or series of preferred stock upon which like voting rights have been conferred and are exercisable and with which the preferred stock of such class or series is entitled to vote as a class with respect to the election of such two directors) and the holders of such series or class of preferred stock (voting separately as a class with all other classes or series of preferred stock upon which like voting rights have been conferred and are exercisable and which are entitled to vote as a class with such class or series of preferred stock in the election of such two directors) will be entitled to vote for the election of such two additional directors to our Board of Directors at a special meeting called by Realty Income at the request of the holders of record of at least 10% of the outstanding shares of such class or series of preferred stock or by the holders of any other class or series of preferred stock upon which like voting rights have been conferred and are exercisable and which are entitled to vote as a class with such class or series of preferred stock in the election of such two directors (unless the request is received less than 90 days before the date fixed for the next annual or special meeting of stockholders, in which case the vote will be held at the earlier of the next annual or special meeting of stockholders), and at each subsequent annual meeting until all dividends

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accumulated on shares of preferred stock of that class or series for all past dividend periods and the then current dividend period shall have been fully paid or declared and a sum sufficient for the payment thereof set aside for payment. In that case, the right of the preferred stock of that class or series to elect those two directors will cease and (unless there are one or more other classes or series of preferred stock upon which like voting rights have been conferred and remain exercisable) the term of office of the two directors will automatically terminate and the number of directors constituting the Board of Directors will be reduced accordingly.

        If a special meeting is not called by us within 30 days after a request from the holders of preferred stock as described above, then the holders of record of at least 10% of the outstanding shares of any class or series of preferred stock upon which such voting rights have been conferred and are exercisable may designate a holder to call the meeting at our expense.

        So long as any shares of any class or series of preferred stock remain outstanding, we shall not, without the consent or the affirmative vote of the holders of at least two-thirds of the shares of such class or series of preferred stock outstanding at the time, given in person or by proxy, either in writing or at a meeting (with such series or class of preferred stock voting separately as a class):

provided that any amendment to our charter to authorize any increase in the amount of the authorized preferred stock or common stock or the creation or issuance of any other class or series of preferred stock or any increase in the amount of authorized or outstanding shares of such series or class or any other series or class of preferred stock, in each case ranking on a parity with or junior to the preferred stock of such series or class with respect to payment of dividends and the distribution of assets upon liquidation, dissolution and winding up, shall not be deemed to materially and adversely affect any right, preference, privilege or voting power of that series or class of preferred stock or the holders thereof.

        The foregoing voting provisions will not apply if, at or prior to the time when the act with respect to which the vote would otherwise be required shall be effected, all outstanding shares of such series or class of preferred stock shall have been redeemed or called for redemption upon proper notice and sufficient funds shall have been irrevocably deposited in trust to effect the redemption.

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Conversion Rights

        The terms and conditions, if any, upon which shares of any series or class of preferred stock are convertible into shares of common stock will be set forth in the applicable prospectus supplement. The terms will include the number of shares of common stock into which the preferred stock is convertible, the conversion price (or manner of calculation thereof), the conversion period, provisions as to whether conversion will be at the option of the holders of the preferred stock or us, the events requiring an adjustment of the conversion price and provisions affecting conversion in the event of the redemption of the preferred stock.

Restrictions on Ownership

        For us to qualify as a REIT under the Code, not more than 50% in value of our outstanding capital stock may be owned, actually or constructively, by five or fewer individuals (defined in the Code to include certain entities) during the last half of a taxable year. To assist us in meeting this requirement and certain other requirements relating to our tax status as a REIT, the articles supplementary establishing any class or series of preferred stock will contain provisions, which will be described in the applicable prospectus supplement, intended to limit the actual, beneficial or constructive ownership by a single person or entity of our outstanding equity securities.

Transfer Agent

        The transfer agent and registrar for any series or class of preferred stock will be set forth in the applicable prospectus supplement.


RESTRICTIONS ON OWNERSHIP AND TRANSFERS OF STOCK

Internal Revenue Code Requirements

        To maintain our REIT status under the Code, no more than 50% in value of our outstanding shares of stock may be owned, actually or constructively, by five or fewer individuals (as defined in the Code to include certain entities) during the last half of a taxable year. In addition, if we, or an owner of 10% or more of us, actually or constructively owns 10% or more of a tenant of ours (or a tenant of any partnership in which we are a partner), the rent received by us (either directly or through any such partnership) from that tenant will not be qualifying income for purposes of the REIT gross income tests of the Code. A REIT's stock must also be beneficially owned by 100 or more persons during at least 335 days of a taxable year of twelve months or during a proportionate part of a shorter taxable year.

Transfer Restrictions in Charter

        Because we expect to continue to qualify as a REIT, our charter contains restrictions on the ownership and transfer of common stock which are intended to assist us in complying with applicable Code requirements. Our charter provides that, subject to certain specified exceptions, no person or entity may own, or be deemed to own by virtue of the applicable constructive ownership provisions of the Code, more than 9.8% (by number or value, whichever is more restrictive) of the outstanding shares of common stock, appropriately referred to as the ownership limit. The constructive ownership rules of the Code are complex, and may cause shares of common stock owned actually or constructively by a group of related individuals and/or entities to be constructively owned by one individual or entity. As a result, the acquisition of less than 9.8% of the shares of common stock (or the acquisition of an interest in an entity that owns, actually or constructively, common stock) by an individual or entity, could nevertheless cause that individual or entity, or another individual or entity, to constructively own more than 9.8% of our outstanding common stock and thus violate the ownership limit, or any other limit as provided in our charter or as otherwise permitted by our board of directors. Our board of

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directors may, but in no event is required to, exempt from the ownership limit a particular stockholder if it determines that such ownership will not jeopardize our status as a REIT. As a condition of such exemption, the board of directors may require a ruling from the Internal Revenue Service or an opinion of counsel satisfactory to it and/or undertakings or representations from the applicant with respect to preserving the our REIT status.

        Our charter further prohibits (1) any person from actually or constructively owning shares of our stock that would result in our being "closely held" under Section 856(h) of the Code or otherwise cause us to fail to qualify as a REIT, and (2) any person from transferring shares of our stock if such transfer would result in shares of our stock being beneficially owned by fewer than 100 persons (determined without reference to any rules of attribution).

        Any person who acquires or attempts to acquire actual or constructive ownership of shares of our stock that would violate any of the foregoing restrictions on transferability and ownership is required to give notice to us immediately and provide us with such other information as we may request in order to determine the effect of such transfer on our status as a REIT. The foregoing restrictions on transferability and ownership will not apply if our Board of Directors determines that it is no longer in our best interest to attempt to qualify, or to continue to qualify, as a REIT and such determination is approved by the holders of two-thirds of all shares entitled to vote on the matter, as required by our charter. Except as otherwise described above, any change in the ownership limit would require an amendment to the charter.

        Our outstanding preferred stock is subject to transfer restrictions similar to those described in this section, and we anticipate that any class or series of preferred stock that we issue in the future will also be subject to similar restrictions.

Effect of Violation of Transfer Provisions

        According to our charter, if any purported transfer of common stock or any other event would otherwise result in any person violating the ownership limit or such other limit as provided in the charter or as otherwise permitted by our board of directors, or result in our being "closely held" under Section 856(h) of the Code or otherwise cause us to fail to qualify as a REIT, then the number of shares that would otherwise cause such violation or result will be transferred automatically to a trust, the beneficiary of which will be a qualified charitable organization selected by us. Such automatic transfer shall be deemed to be effective as of the close of business on the business day prior to the date of such violative transfer.

        Within 20 days of receiving notice from us of the transfer of shares to the trust, the trustee of the trust (who shall be designated by us and be unaffiliated with us and any prohibited transferee or prohibited owner) will be required to sell such shares to a person or entity who could own the shares without violating the ownership limit, or any other limit as provided in our charter or as otherwise permitted by our board of directors, and distribute to the prohibited transferee or prohibited owner, as applicable, an amount equal to the lesser of the price paid by the prohibited transferee or prohibited owner for such shares or the net sales proceeds received by the trust for such shares. In the case of any event other than a transfer, or in the case of a transfer for no consideration (such as a gift), the trustee will be required to sell such shares to a qualified person or entity and distribute to the prohibited owner an amount equal to the lesser of the market price (described in our charter) of such shares as of the date of the event resulting in the transfer or the net sales proceeds received by the trust for such shares. In either case, any proceeds in excess of the amount distributable to the prohibited transferee or prohibited owner, as applicable, will be distributed to the beneficiary. Prior to a sale of any such shares by the trust, the trustee will be entitled to receive, in trust for the beneficiary, all dividends and other distributions paid by us with respect to such excess shares, and also will be entitled to exercise all voting rights with respect to such shares.

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        Subject to Maryland law, effective as of the date that such shares have been transferred to the trust, the trustee shall have the authority (at the trustee's sole discretion) (1) to rescind as void any vote cast by a prohibited transferee or prohibited owner, as applicable, prior to the discovery by us that such shares have been transferred to the trust and (2) to recast such vote in accordance with the desires of the trustee acting for the benefit of the beneficiary. However, if we have already taken irreversible corporate action, then the trustee shall not have the authority to rescind and recast that vote. Any dividend or other distribution paid to the prohibited transferee or prohibited owner (prior to the discovery by us that such shares had been automatically transferred to a trust as described above) will be required to be repaid to the trustee upon demand for distribution to the beneficiary. In the event that the transfer to the trust as described above is not automatically effective (for any reason) to prevent violation of the ownership limit or any other limit as provided in our charter or as otherwise permitted by our board of directors, then our charter provides that the transfer of the excess shares will be void.

        In addition, shares of our stock held in the trust shall be deemed to have been offered for sale to us, or our designee, at a price per share equal to the lesser of (1) the price per share in the transaction that resulted in such transfer to the trust (or, in the case of a devise or gift, the market price at the time of such devise or gift) and (2) the market price on the date we or our designee, accepts such offer. We shall have the right to accept such offer until the trustee has sold the shares of stock held in the trust. Upon such a sale to us, the interest of the beneficiary in the shares sold shall terminate and the trustee shall distribute the net proceeds of the sale to the prohibited transferee or prohibited owner.

        If any purported transfer of shares of common stock would cause us to be beneficially owned by fewer than 100 persons, such transfer will be null and void in its entirety and the intended transferee will acquire no rights to the stock.

        All certificates representing shares of our common stock will bear a legend referring to the restrictions described above. The foregoing ownership limitations could delay, defer or prevent a transaction or a change in control of Realty Income that might involve a premium price for the common stock or otherwise be in the best interest of stockholders.

        As set forth in the Treasury Regulations, every owner of a specified percentage (or more) of the outstanding shares of our stock (including both common stock and preferred stock) must file a completed questionnaire with us containing information regarding their ownership of such shares. Under current Treasury Regulations, the percentage will be set between 0.5% and 5.0%, depending upon the number of record holders of our shares of stock. Under our charter, each stockholder shall upon demand be required to disclose to us in writing such information as we may request in order to determine the effect, if any, of such stockholder's actual and constructive ownership of stock on our status as a REIT and to ensure compliance with the ownership limit, or any other limit as provided in our charter or as otherwise permitted by our board of directors.

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UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS
RELATED TO OUR REIT ELECTION

        The following is a summary of the federal income tax considerations related to our REIT election which are anticipated to be material to purchasers of the securities offered by this prospectus. Your tax treatment will vary depending upon the terms of the specific securities that you acquire, as well as your particular situation. This discussion does not attempt to address any aspects of federal income taxation relevant to your ownership of the securities offered by this prospectus. Instead, the material federal income tax considerations relevant to your ownership of the securities offered by this prospectus will be provided in the applicable prospectus supplement that relates to those securities.

        The information in this section is based on:


in each case, as of the date of this prospectus. In addition, the administrative interpretations and practices of the Internal Revenue Service include its practices and policies as expressed in private letter rulings which are not binding on the Internal Revenue Service, except with respect to the particular taxpayers who requested and received these rulings. Future legislation, Treasury Regulations, administrative interpretations and practices and/or court decisions may adversely affect the tax considerations contained in this discussion. Any change could apply retroactively to transactions preceding the date of the change. We have not requested, and do not plan to request, any rulings from the Internal Revenue Service concerning our tax treatment, and the statements in this prospectus are not binding on the Internal Revenue Service or any court. Thus, we can provide no assurance that the tax considerations contained in this discussion will not be challenged by the Internal Revenue Service or if challenged, will be sustained by a court.

        You are urged to consult the applicable prospectus supplement, as well as your tax advisors, regarding the tax consequences to you of:

Taxation of the Company

        General.    We elected to be taxed as a REIT under Sections 856 through 860 of the Internal Revenue Code, commencing with our taxable year ended December 31, 1994. We believe we have been organized and have operated in a manner which allows us to qualify for taxation as a REIT under the Internal Revenue Code commencing with our taxable year ended December 31, 1994. We currently intend to continue to operate in this manner. However, qualification and taxation as a REIT depend upon our ability to meet the various qualification tests imposed under the Internal Revenue Code, including through actual annual operating results, asset diversification, distribution levels and diversity of stock ownership. Accordingly, no assurance can be given that we have operated or will continue to

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operate in a manner so as to qualify or remain qualified as a REIT. See the section below entitled "—Failure to Qualify."

        The sections of the Internal Revenue Code and corresponding Treasury Regulations that relate to the qualification and operation of a REIT are highly technical and complex. The following sets forth the material aspects of the sections of the Internal Revenue Code that govern the federal income tax treatment of a REIT. This summary is qualified in its entirety by the applicable Internal Revenue Code provisions, relevant rules and Regulations promulgated thereunder, and administrative and judicial interpretations thereof.

        Latham & Watkins LLP has acted as our tax counsel in connection with the filing of this prospectus. Latham & Watkins LLP has rendered an opinion to us dated March 11, 2004 to the effect that, commencing with our taxable year ended December 31, 1994, (i) we have been organized and have operated in conformity with the requirements for qualification and taxation as a REIT under the Internal Revenue Code, and (ii) our proposed method of operation will enable us to continue to meet the requirements for qualification and taxation as a REIT under the Internal Revenue Code. It must be emphasized that this opinion was based on various assumptions and representations as to factual matters, including representations made by us in a certificate provided by one of our officers. In addition, this opinion was based upon our factual representations set forth in this prospectus. Moreover, our qualification and taxation as a REIT depends upon our ability to meet, through actual annual operating results, asset diversification, distribution levels and diversity of stock ownership, the various qualification tests imposed under the Internal Revenue Code discussed below, the results of which have not been and will not be reviewed by our tax counsel. Accordingly, no assurance can be given that our actual results of operation for any particular taxable year have satisfied or will satisfy those requirements. Our tax counsel has no obligation to update its opinion subsequent to its date. Further, the anticipated income tax treatment described in this prospectus may be changed, perhaps retroactively, by legislative, administrative or judicial action at any time. See "—Failure to Qualify".

        Provided we qualify for taxation as a REIT, we generally will not be required to pay federal corporate income taxes on our net income that is currently distributed to our stockholders. We will be required to pay federal income tax, however, as follows:

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        Requirements for qualification as a REIT.    The Internal Revenue Code defines a REIT as a corporation, trust or association:

        The Internal Revenue Code provides that all of conditions (1) to (4) must be met during the entire taxable year and that condition (5) must be met during at least 335 days of a taxable year of twelve months, or during a proportionate part of a taxable year of less than twelve months. Conditions (5) and (6) do not apply until after the first taxable year for which an election is made to be taxed as a REIT. For purposes of condition (6), pension funds and other specified tax-exempt entities generally are treated as individuals, except that a "look-through" exception applies with respect to pension funds.

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        We believe that we have satisfied conditions (1) through (7), inclusive, during the relevant time periods. In addition, our charter provides for restrictions regarding ownership and transfer of shares. These restrictions are intended to assist us in continuing to satisfy the share ownership requirements described in conditions (5) and (6) above. These stock ownership and transfer restrictions are described in "Restrictions on Ownership and Transfers of Stock" in this Prospectus. These restrictions, however, may not ensure that we will, in all cases, be able to satisfy the share ownership requirements described in conditions (5) and (6) above. If we fail to satisfy these share ownership requirements, except as provided in the next sentence, our status as a REIT will terminate. If, however, we comply with the rules contained in the applicable Treasury Regulations that require us to ascertain the actual ownership of our shares, and we do not know, or would not have known through the exercise of reasonable diligence, that we failed to meet the requirement described in condition (6) above, we will be treated as having met this requirement. See "—Failure to Qualify."

        In addition, we may not maintain our status as a REIT unless our taxable year is the calendar year. We have and will continue to have a calendar taxable year.

        Ownership of a partnership interest.    We may from time to time own and operate one or more properties through partnerships and limited liability companies. Treasury Regulations provide that if we are a partner in a partnership, then for purposes of applying the assets and income tests, described below, we will be deemed to own our proportionate share of the assets of the partnership and we will be deemed to be entitled to our proportionate share of the income of the partnership, based on our interest in partnership capital. The character of the assets and gross income of the partnership retains the same character in our hands for these purposes. In addition, the assets and items of income of any partnership in which we own a direct or indirect interest include such partnership's share of assets and items of income of any partnership in which it owns an interest. We have included a brief summary of the rules governing the federal income taxation of partnerships and their partners below in "—Tax Aspects of the Partnerships." The treatment described above also applies with respect to the ownership of interests in limited liability companies or other entities that are treated as partnerships for tax purposes.

        We have direct or indirect control of certain partnerships and limited liability companies and intend to continue to operate them in a manner consistent with the requirements for qualification as a REIT. From time to time we may be a limited partner or non-managing member in certain partnerships and limited liability companies. If a partnership or limited liability company in which we own an interest takes or expects to take actions which could jeopardize our status as a REIT or require us to pay tax, we may be forced to dispose of our interest in that entity. In addition, it is possible that a partnership or limited liability company could take an action which could cause us to fail a REIT income or asset test, and that we would not become aware of such action in time to dispose of our interest in the applicable entity or take other corrective action on a timely basis. In such a case, we could fail to qualify as a REIT.

        Ownership of Interests in Qualified REIT Subsidiaries.    We currently own and may from time to time own and operate certain properties through wholly-owned subsidiaries that we intend to be treated as "qualified REIT subsidiaries" under the Internal Revenue Code. A corporation will qualify as our qualified REIT subsidiary if we own 100% of its outstanding stock and if we do not elect with the subsidiary to treat it as a "taxable REIT subsidiary," described below. A corporation that is a qualified REIT subsidiary is not treated as a separate corporation, and all assets, liabilities and items of income, deduction and credit of a qualified REIT subsidiary are treated as assets, liabilities and items of income, deduction and credit (as the case may be) of the parent REIT for all purposes under the Internal Revenue Code (including all REIT qualification tests). Thus, in applying the requirements described in this prospectus, our qualified REIT subsidiaries are ignored, and all assets, liabilities and items of income, deduction and credit of such subsidiaries are treated as our assets, liabilities and items of income, deduction and credit. A qualified REIT subsidiary is not required to pay federal income tax,

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and our ownership of the stock of a qualified REIT subsidiary does not violate the restrictions on ownership of securities of any one issuer that constitute more than 10% of the voting power or value of such issuer's securities or more than 5% of the value of our total assets, as described below under "—Asset Tests."

        Ownership of Interests in Taxable REIT Subsidiaries.    A taxable REIT subsidiary of ours is a corporation other than a REIT in which we directly or indirectly hold stock and that has made a joint election with us to be treated as a taxable REIT subsidiary. A taxable REIT subsidiary also includes any corporation other than a REIT with respect to which a taxable REIT subsidiary owns, directly or indirectly, securities possessing more than 35% of the total voting power or value of the outstanding securities of such corporation. A taxable REIT subsidiary may generally engage in any business, including the provision of customary or noncustomary services to tenants of its parent REIT, except that a taxable REIT subsidiary may not directly or indirectly operate or manage a lodging or health care facility or directly or indirectly provide to any other person (under a franchise, license or otherwise) rights to any brand name under which any lodging or health care facility is operated. A taxable REIT subsidiary is required to pay federal income tax, and state and local income tax where applicable, as a regular C corporation. In addition, a taxable REIT subsidiary of ours may be prevented from deducting interest on debt that we directly or indirectly fund if certain tests regarding the taxable REIT subsidiary's debt-to-equity ratio and interest expense are not satisfied. We may from time to time own interests in taxable REIT subsidiaries. Our ownership of securities of our taxable REIT subsidiaries will not be subject to the 10% asset test described below, and their operations will be subject to the provisions described above concerning taxable REIT subsidiaries. See "—Asset Tests."

        Income Tests.    We must satisfy two gross income requirements annually to maintain our status as a REIT:

        For these purposes, the term "interest" generally does not include any amount received or accrued, directly or indirectly, if the determination of all or some of the amount depends in any way on the income or profits of any person. An amount received or accrued generally will not be excluded from the term "interest," however, solely by reason of being based on a fixed percentage or percentages of receipts or sales.

        Rents we receive from a tenant will qualify as "rents from real property" for the purpose of satisfying the gross income requirements for a REIT described above only if the following conditions are met:

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        We generally do not intend to receive rent which fails to satisfy any of the above conditions. Notwithstanding the foregoing, we may have taken and may in the future take actions which fail to satisfy one or more of the above conditions to the extent that we determine, based on the advice of our tax counsel, that those actions will not jeopardize our tax status as a REIT.

        We believe that the aggregate amount of our nonqualifying income, from all sources, in any taxable year will not exceed the limit on nonqualifying income under the gross income tests. If we fail to satisfy one or both of the 75% or 95% gross income tests for any taxable year, we may nevertheless qualify as a REIT for the year if we are entitled to relief under certain provisions of the Internal Revenue Code. Generally, we may avail ourselves of the relief provisions if:

        It is not possible, however, to state whether in all circumstances we would be entitled to the benefit of these relief provisions. For example, if we fail to satisfy the gross income tests because nonqualifying income that we intentionally accrue or receive exceeds the limits on nonqualifying income, the Internal Revenue Service could conclude that our failure to satisfy the tests was not due to reasonable cause. If these relief provisions do not apply to a particular set of circumstances, we will not qualify as a REIT. As discussed above in "—Taxation of the Company—General," even if these relief provisions apply, and we retain our status as a REIT, a tax would be imposed with respect to our nonqualifying income. We may not always be able to comply with the gross income tests for REIT qualification despite our periodic monitoring of our income.

        Prohibited Transaction Income.    Any gain that we realize on the sale of property held as inventory or other property held primarily for sale to customers in the ordinary course of business will be treated as income from a prohibited transaction that is subject to a 100% penalty tax. Our gain would include any gain realized by our qualified REIT subsidiaries and our share of any gain realized by any of the partnerships or limited liability companies in which we own an interest. This prohibited transaction

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income may also adversely affect our ability to satisfy the income tests for qualification as a REIT. Under existing law, whether property is held as inventory or primarily for sale to customers in the ordinary course of a trade or business is a question of fact that depends on all the facts and circumstances surrounding the particular transaction. We intend to hold our properties for investment with a view to long-term appreciation and to engage in the business of acquiring, developing and owning our properties. We have made, and may in the future make, occasional sales of the properties as are consistent with our investment objectives. We do not intend to enter into any sales that are prohibited transactions. The Internal Revenue Service may contend, however, that one or more of these sales is subject to the 100% penalty tax.

        Penalty Tax.    Any redetermined rents, redetermined deductions or excess interest we generate will be subject to a 100% penalty tax. In general, redetermined rents are rents from real property that are overstated as a result of services furnished by one of our taxable REIT subsidiaries to any of our tenants, and redetermined deductions and excess interest represent amounts that are deducted by a taxable REIT subsidiary for amounts paid to us that are in excess of the amounts that would have been deducted based on arm's length negotiations. Rents we receive will not constitute redetermined rents if they qualify for the safe harbor provisions contained in the Internal Revenue Code. Safe harbor provisions are provided where generally:

        Asset Tests.    At the close of each quarter of our taxable year, we also must satisfy four tests relating to the nature and diversification of our assets:

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        The 10% value limitation and the 20% asset test are effective for taxable years ending after December 31, 2000.

        As of the date of this prospectus, we own 100% of the outstanding stock of Crest Net Lease, Inc. Crest Net Lease has elected, together with us, to be treated as a taxable REIT subsidiary. So long as Crest Net Lease qualifies as taxable REIT subsidiary, we will not be subject to the 5% asset test, 10% voting securities limitation or 10% value limitation with respect to our ownership of its securities. We or Crest Net Lease may acquire securities in other taxable REIT subsidiaries in the future. We believe that the aggregate value of our taxable REIT subsidiaries has not and will not exceed 20% of the value of our gross assets. With respect to each issuer in which we own an interest that does not qualify as a REIT, a qualified REIT subsidiary or a taxable REIT subsidiary, we believe that our ownership of the securities of any such issuer has complied with the 10% voting securities limitation, the 10% value limitation and the 5% value limitation. No independent appraisals have been obtained to support these conclusions, and there can be no assurance that the Internal Revenue Service will not disagree with our determinations of value.

        The asset tests must be satisfied not only at the end of the quarter during which we (directly or through our partnerships or limited liability companies) acquire securities in the applicable issuer, but also each time we increase our ownership of securities of such issuer, including as a result of increasing our interest in a partnership or limited liability company which owns such securities. For example, our indirect ownership of securities of an issuer may increase as a result of our capital contributions to a partnership or limited liability company. After initially meeting the asset tests at the close of any quarter, we will not lose our status as a REIT for failure to satisfy the asset tests at the end of a later quarter solely by reason of changes in asset values. If we fail to satisfy an asset test because we acquire securities or other property during a quarter (including as a result of an increase in our interests in a partnership or limited liability company), we can cure this failure by disposing of sufficient nonqualifying assets within 30 days after the close of that quarter. Although we plan to take steps to ensure that we satisfy the asset tests for any quarter with respect to which retesting is to occur, there can be no assurance that such steps will always be successful or will not require a reduction in our overall interest in an issuer (including in a taxable REIT subsidiary). If we fail to timely cure any noncompliance with the asset tests, we would cease to qualify as a REIT.

        Annual Distribution Requirements.    To maintain our qualification as a REIT, we are required to distribute dividends, other than capital gain dividends, to our stockholders in an amount at least equal to the sum of:

        Our "REIT taxable income" is computed without regard to the dividends paid deduction and our net capital gain. In addition, for purposes of this test, non-cash income means income attributable to leveled stepped rents, original issue discount on purchase money debt, cancellation of indebtedness, and any like-kind exchanges that are later determined to be taxable.

        In addition, if we dispose of any asset we acquired from a corporation which is or has been a C corporation in a transaction in which our basis in the asset is determined by reference to the basis of

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the asset in the hands of that C corporation, within the ten-year period following our acquisition of such asset, we would be required to distribute at least 90% (95% for taxable years beginning before January 1, 2001) of the after-tax gain, if any, we recognized on the disposition, to the extent that gain does not exceed the excess of (a) the fair market value of the asset on the date we acquired the asset over (b) our adjusted basis in the asset on the date we acquired the asset.

        We must pay these distributions in the taxable year to which they relate, or in the following taxable year if they are declared before we timely file our tax return for that year and paid on or before the first regular dividend payment following their declarations. Except as provided below, these distributions are taxable to our stockholders, other than tax-exempt entities in the year in which paid. This is so even though these distributions relate to the prior year for purposes of our 90% distribution requirement. The amount distributed must not be preferential. To avoid being preferential, every stockholder of the class of stock to which a distribution is made must be treated the same as every other stockholder of that class, and no class of stock may be treated other than according to its dividend rights as a class. To the extent that we do not distribute all of our net capital gain, or distribute at least 90% (95% for taxable years beginning before January 1, 2001), but less than 100%, of our "REIT taxable income," as adjusted, we will be required to pay tax on the undistributed amount at regular ordinary and capital gain corporate tax rates. We believe we have made, and intend to continue to make, timely distributions sufficient to satisfy these annual distribution requirements.

        We anticipate that we will generally have sufficient cash or liquid assets to enable us to satisfy our distribution requirements. However, from time to time, we may not have sufficient cash or other liquid assets to meet these distribution requirements because of timing differences between the actual receipt of income and actual payment of deductible expenses, and the inclusion of income and deduction of expenses in determining our taxable income. If these timing differences occur, we may need to arrange for short-term, or possibly long-term, borrowings or need to pay dividends in the form of taxable stock dividends in order to meet the distribution requirements.

        Under certain circumstances, we may be able to rectify an inadvertent failure to meet the 90% distribution requirement for a year by paying "deficiency dividends" to stockholders in a later year, which we may include in our deduction for dividends paid for the earlier year. Thus, we may be able to avoid being taxed on amounts distributed as deficiency dividends. However, we will be required to pay interest to the Internal Revenue Service based upon the amount of any deduction taken for deficiency dividends.

        In addition, we will be required to pay a 4% excise tax to the extent the amount we actually distribute for any calendar year is less than the sum of 85% of our REIT ordinary income for such year, 95% of our REIT capital gain net income for such year and any undistributed taxable income from prior periods. Any REIT ordinary income and capital gain net income on which this excise tax is imposed for any year is treated as an amount distributed during that year for purposes of calculating such tax.

        Distributions with declaration and record dates falling in the last three months of the calendar year, which are paid to our stockholders by the end of January immediately following that year, will be treated for federal income tax purposes as having been paid on December 31 of the prior year.

Failure to Qualify

        If we fail to qualify for taxation as a REIT in any taxable year, and the relief provisions of the Internal Revenue Code do not apply, we will be required to pay tax, including any alternative minimum tax, on our taxable income at regular corporate tax rates. Distributions to our stockholders in any year in which we fail to qualify as a REIT will not be deductible by us, and we will not be required to distribute any amounts to our stockholders. As a result, we anticipate that our failure to qualify as a REIT would reduce the cash available for distribution by us to our stockholders. In addition, if we fail

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to qualify as a REIT, all distributions to our stockholders will be taxable as regular corporate dividends to the extent of our current and accumulated earnings and profits. In this event, subject to certain limitations under the Internal Revenue Code, corporate distributees may be eligible for the dividends-received deduction. Unless entitled to relief under specific statutory provisions, we will also be disqualified from taxation as a REIT for the four taxable years following the year in which we lose our qualification. It is not possible to state whether in all circumstances we would be entitled to this statutory relief.

Tax Aspects of the Partnerships

        General.    From time to time, we may own, directly or indirectly, interests in various partnerships and limited liability companies. We expect these will be treated as partnerships (or disregarded entities) for federal income tax purposes. In general, entities that are classified as partnerships (or disregarded entities) for federal income tax purposes are "pass-through" entities which are not required to pay federal income tax. Rather, partners or members of such entities are allocated their shares of the items of income, gain, loss, deduction and credit of the entity, and are potentially required to pay tax thereon, without regard to whether the partners or members receive a distribution of cash from the entity. We include in our income our allocable share of the foregoing items for purposes of computing our REIT taxable income, based on the partnership agreement. For purposes of applying the REIT income and asset tests, we include our pro rata share of the income generated by and the assets held by the partnerships and limited liability companies in which we own an interest, including their shares of the income and assets of any subsidiary partnerships and limited liability companies based on our capital interests. See "—Taxation of the Company."

        Our ownership interests in such partnerships and limited liability companies involves special tax considerations. These special tax considerations include, for example, the possibility that the Internal Revenue Service might challenge the status of one or more of the partnerships or limited liability companies in which we own an interest as partnerships (or disregarded entities), as opposed to associations taxable as corporations, for federal income tax purposes. If a partnership or limited liability company in which we own an interest, or one or more of its subsidiary partnerships or limited liability companies, were treated as an association, it would be taxable as a corporation and therefore be subject to an entity-level tax on its income. In this situation, the character of our assets and items of gross income would change, and could prevent us from satisfying the REIT asset tests and the REIT income tests (see "—Asset Tests" and "—Income Tests"). This, in turn, would prevent us from qualifying as a REIT. See "—Failure to Qualify" for a discussion of the effect of our failure to meet these tests. In addition, a change in the tax status of one or more of the partnerships or limited liability companies in which we own an interest might be treated as a taxable event. If so, we might incur a tax liability without any related cash distributions.

        Treasury Regulations that apply for tax periods beginning on or after January 1, 1997, provide that a domestic business entity not otherwise organized as a corporation and which has at least two members may elect to be taxed as a partnership for federal income tax purposes. Unless it elects otherwise, an eligible entity in existence prior to January 1, 1997, will have the same classification for federal income tax purposes that it claimed under the entity classification Treasury Regulations in effect prior to this date. In addition, an eligible entity which did not exist or did not claim a classification prior to January 1, 1997, will be classified as a partnership for federal income tax purposes unless it elects otherwise. All of the partnerships in which we own an interest intend to claim classification as partnerships under these Treasury Regulations. As a result, we believe that these partnerships will be classified as partnerships for federal income tax purposes. The treatment described above also applies with respect to our ownership of interests in limited liability companies that are treated as partnerships for tax purposes.

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        Allocations of Income, Gain, Loss and Deduction. A partnership or limited liability company agreement will generally determine the allocation of income and losses among partners or members. These allocations, however, will be disregarded for tax purposes if they do not comply with the provisions of Section 704(b) of the Internal Revenue Code and the related Treasury Regulations. Generally, Section 704(b) of the Internal Revenue Code and the related Treasury Regulations require that partnership and limited liability company allocations respect the economic arrangement of the partners and members. If an allocation is not recognized for federal income tax purposes, the relevant item will be reallocated according to the partners' or members' interests in the partnership or limited liability company, as the case may be. This reallocation will be determined by taking into account all of the facts and circumstances relating to the economic arrangement of the partners or members with respect to such item. The allocations of taxable income and loss in each of the partnerships and limited liability companies in which we own an interest are intended to comply with the requirements of Section 704(b) of the Internal Revenue Code and the Treasury Regulations promulgated thereunder.

        Tax Allocations With Respect to the Properties.    Under Section 704(c) of the Internal Revenue Code, income, gain, loss and deduction attributable to appreciated or depreciated property that is contributed to a partnership or limited liability company in exchange for an interest in the partnership or limited liability company must be allocated in a manner so that the contributing partner or member is charged with the unrealized gain or benefits from the unrealized loss associated with the property at the time of the contribution. The amount of the unrealized gain or loss is generally equal to the difference between the fair market value or book value and the adjusted tax basis of the contributed property at the time of contribution. These allocations are solely for federal income tax purposes and do not affect the book capital accounts or other economic or legal arrangements among the partners or members. Some of the partnerships and/or limited liability companies in which we own an interest were formed by way of contributions of appreciated property. The relevant partnership and/or limited liability company agreements require that allocations be made in a manner consistent with Section 704(c) of the Internal Revenue Code.

Other Tax Consequences

        We may be required to pay tax in various state or local jurisdictions, including those in which we transact business. Our state and local tax treatment may not conform to the federal income tax consequences discussed above. Consequently, you should consult your tax advisors regarding the effect of state and local tax laws on us.

New Legislation

        The maximum tax rate for non-corporate taxpayers for (i) capital gains, including "capital gain dividends," has generally been reduced from 20% to 15% (for taxable years ending on or after May 6, 2003, although depending on the characteristics of the assets which produced these gains and on designations which we may make, certain capital gain dividends may be taxed at a 25% rate) and (ii) "qualified dividend income" has generally been reduced from 38.6% to 15% (for taxable years beginning after December 31, 2002). In general, dividends payable by REITs are not eligible for the reduced tax rate on corporate dividends, except to the extent the REIT's dividends are attributable to dividends received from taxable corporations (such as our taxable REIT subsidiaries), to income that was subject to tax at the corporate/REIT level (for example, if we distribute taxable income that we retained and paid tax on in the prior taxable year) or to dividends properly designated by us as "capital gain dividends." Although these tax rate changes do not adversely affect the taxation of REITs or dividends paid by REITs, the more favorable treatment of regular corporate dividends could cause investors who are individuals to consider stock of other corporations that pay dividends to be more attractive relative to stock of REITs. The currently applicable provisions of the United States federal income tax laws relating to the 15% tax rate are currently scheduled to "sunset" or revert back to the provisions of prior law effective for taxable years beginning after December 31, 2008, at which time the capital gains tax rate will be increased to 20% and the rate applicable to dividends will be increased to the tax rate then applicable to ordinary income.

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PLAN OF DISTRIBUTION

        We may sell the securities to one or more underwriters for public offering and sale by them or may sell the securities to investors directly or through agents. Any such underwriter or agent involved in the offer and sale of the Securities will be named in the applicable prospectus supplement.

        Underwriters may offer and sell the securities at a fixed price or prices, which may be changed, at prices relating to the prevailing market prices at the time of sale or at negotiated prices. We also may, from time to time, authorize underwriters acting as our agents to offer and sell the securities upon the terms and conditions as are set forth in the applicable prospectus supplement. In connection with the sale of securities, underwriters may be deemed to have received compensation from us in the form of underwriting discounts or commissions and may also receive commissions from purchasers of securities for whom they may act as agent. Underwriters may sell securities to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agent. Any underwriting compensation paid by us to underwriters or agents in connection with the offering of securities, and any discounts, concessions or commissions allowed by underwriters to participating dealers, will be set forth in the applicable prospectus supplement. Underwriters, dealers and agents participating in the distribution of the securities may be deemed to be underwriters, and any discounts and commissions received by them and any profit realized by them on resale of the securities may be deemed to be underwriting discounts and commissions, under the Securities Act. Any such underwriter or agent will be identified, and such compensation received from us will be described, in the applicable prospectus supplement.

        Underwriters, dealers and agents may be entitled, under agreements entered into with us, to indemnification against and contribution toward certain civil liabilities, including liabilities under the Securities Act.

        Certain of the underwriters, dealers and agents and their affiliates may be customers of, engage in transactions with and perform services for us and our subsidiaries in the ordinary course of business.

        Unless otherwise specified in the related prospectus supplement, each series of securities will be a new issue with no established trading market, other than the common stock. Our common stock is currently listed on the NYSE. Unless otherwise specified in the related prospectus supplement, any shares of common stock sold pursuant to a prospectus supplement will be listed on the NYSE, subject to official notice of issuance. We may elect to list any series of debt securities or preferred stock on an exchange or Nasdaq, but are not obligated to do so. It is possible that one or more underwriters may make a market in a series of securities, but will not be obligated to do so and may discontinue any market making at any time without notice. Therefore, there can be no assurance as to the liquidity of, or the trading market for, the securities.


STOCKHOLDER RIGHTS PLAN

        On June 10, 1998, our Board of Directors declared a dividend distribution of one preferred share purchase right, or right, for each outstanding share of our common stock to stockholders of record at the close of business on July 1, 1998. When exercisable, each right entitles the registered holder to purchase from us one one-hundredth (1/100th) of a share of our Class A Junior Participating Preferred Stock, or Class A Preferred Stock, at a price of $104.50 per one one-hundredth of a Class A Preferred share, subject to adjustment. Initially, the rights will be attached to all outstanding shares of our common stock, and no separate rights certificates will be distributed. Our Board of Directors also authorized the issuance of one right with respect to each share of our common stock that we issue between June 10, 1998 and the earliest of the Distribution Date, the Redemption Date and the Final Expiration Date (all as defined in the Rights Agreement, dated as of June 25, 1998 between us and

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The Bank of New York). Each share of our common stock offered hereby will have upon issuance one right attached.

        The rights will become exercisable and will detach from our common stock upon the earlier of (1) the tenth day after the public announcement that any person or group has acquired beneficial ownership of 15% or more of our common stock, or (2) the tenth business day after any person or group commences, or announces an intention to commence, a tender or exchange offer which, if consummated, would result in the beneficial ownership by a person or group of 15% or more of our common stock; the earlier of (1) and (2) is referred to as the Distribution Date. If a person or group acquires beneficial ownership of 15% or more of our outstanding common stock (except pursuant to certain cash tender offers for all outstanding common stock approved by our Board of Directors) or if we are the surviving corporation in a merger and our common stock is not changed or exchanged, each right will entitle the holder, subject to exceptions, to purchase, at the right's then current exercise price, that number of shares of our common stock having a market value equal to twice the exercise price. Similarly, if after the rights become exercisable, we merge or consolidate with, or sell 50% or more of our assets or earning power to, another person, each right will then entitle the holder to purchase, at the right's then current exercise price, that number of shares of the stock of the acquiring company which at the time of such transaction would have a market value equal to twice the exercise price.

        The rights may be redeemed in whole, but not in part, at a price of $0.01 per right by our Board of Directors prior to the time that a person or group has acquired beneficial ownership of 15% or more of our outstanding common stock. The Board of Directors may, under certain circumstances, extend the period during which the rights are redeemable or postpone the Distribution Date. The rights will expire on July 1, 2008, unless earlier redeemed.

        For a more complete summary of the terms of the rights, the Rights Agreement and the Class A Preferred Stock, you should review the information in our Form 8-A filed with the SEC on June 26, 1998, which is incorporated by reference in this prospectus. The summary of selected provisions of the rights, the Rights Agreement and the Class A Preferred Stock appearing above and in the Form 8-A is not complete, and those summaries are qualified in their entirety by reference to the Rights Agreement and the articles supplementary establishing the Class A Preferred Stock. You should review the Rights Agreement and the articles supplementary for the Class A Preferred Stock, copies of which may be obtained as described below under "Where You Can Find More Information."


EXPERTS

        The consolidated financial statements and financial statement Schedule III of Realty Income Corporation and subsidiaries as of December 31, 2003 and 2002, and for each of the years in the three-year period ended December 31, 2003, have been incorporated by reference herein in reliance upon the report of KPMG LLP, independent accountants, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.


LEGAL MATTERS

        The validity of the securities will be passed upon for us by Venable LLP and Latham & Watkins LLP.

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WHERE YOU CAN FIND MORE INFORMATION

        We file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy any reports, statements or other information that we have filed at the SEC's public reference rooms. You may read and copy any document we file with the SEC at its public reference facilities at 450 Fifth Street, N.W., Washington, D.C. 20549. You may also obtain copies of this information by mail from the public reference section of the SEC, 450 Fifth Street, N.W., Room 1024, Washington, D.C. 20549, at prescribed rates. Please call the SEC at 1-800-SEC-0330 for further information on the operation of the public reference facilities. Our SEC filings are also available to the public from commercial document retrieval services and at the web site maintained by the SEC at http://www.sec.gov. You may inspect information that we file with The New York Stock Exchange at the offices of The New York Stock Exchange at 20 Broad Street, New York, New York 10005.

        We have filed with the SEC a registration statement on Form S-3 under the Securities Act of 1933. This prospectus does not contain all of the information set forth in the registration statement.


INCORPORATION OF INFORMATION WE FILE WITH THE SEC

        The SEC allows us to "incorporate by reference" the information we file with them, which means:

        We incorporate by reference the documents listed below which were filed with the SEC under the Securities Exchange Act of 1934 (the "Exchange Act"):

        If any statement in this prospectus is inconsistent with a statement in one of the incorporated documents referred to above, then the statement in the incorporated document will be deemed to have been superseded by the statement in this prospectus.

        We also incorporate by reference each of the following documents that we will file with the SEC after the date of this prospectus but before the end of the offering:

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        As described above, we incorporate by reference into the prospectus specified documents that we have filed or may file with the SEC under the Exchange Act. However, no document that we have "furnished" or may in the future "furnish" with the SEC pursuant to the Exchange Act shall be incorporated by reference into the prospectus. You may request a copy of any filings referred to above (excluding exhibits), at no cost, by writing or telephoning us at the following address:


OTHER INFORMATION

        During 2003, Realty Income and Crest Net Lease, acquired 86 properties operated as National Tire and Battery stores. TBC Corporation is the lessee of these 86 properties, referred to as the TBC properties. We acquired the TBC properties for $135.7 million.

        During 2003, Realty Income and Crest Net Lease acquired 114 properties operated as Pantry convenience stores. The Pantry, Inc. is the lessee of these 114 properties, referred to as the Pantry properties. We acquired the Pantry properties for $94.5 million.

        The TBC properties and the Pantry properties were acquired through sales leaseback transactions whereby each portfolio of properties was leased on a long-term basis immediately after acquisition to a single tenant (the seller lessee) under net leases that transfer all of the properties' nonfinancial operating and holding costs to the seller lessee. These acquisitions in the aggregate comprised a majority of the dollar amount of total acquisitions made by us during 2003.

        Set forth below is certain condensed financial information of TBC Corporation and The Pantry Inc. which is taken from their annual reports on Form 10-K for the years ended December 31, 2002 and September 25, 2003, respectively, as filed with the SEC under the Securities Exchange Act of 1934, as amended, and their quarterly reports on Form 10-Q for the quarters ended September 30, 2003 and December 25, 2003, respectively, as filed with the SEC.

        The information and financial data contained herein concerning TBC Corporation and The Pantry, Inc. was obtained and has been condensed from their public filings under the Exchange Act. Their financial data presented includes only the most recent interim and fiscal year end reporting periods. We can make no representation as to the accuracy and completeness of the public filings of TBC Corporation and The Pantry, Inc. It should be noted that TBC Corporation and The Pantry, Inc. have no duty, contractual of otherwise, to advise us of any events which might have occurred subsequent to the date of such publicly available information which could affect the significance or accuracy of such information.

        TBC Corporation and The Pantry, Inc. are subject to the information filing requirements of the Exchange Act, and, in accordance herewith, are obligated to file periodic reports, proxy statements and other information with the SEC relating to its business, financial condition and other matters. Such reports, proxy statements and other information may be inspected at the offices of the SEC at 450 Fifth Street, N.W. Washington D.C., and should also be available at the following Regional Offices of the SEC: Room 1400, 75 Park Place, New York, New York 10007 and Suite 1400, Northwestern Atrium Center, 500 West Madison Street, Chicago, Illinois 60661.

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        The following table summarizes the current assets, noncurrent assets, current liabilities, noncurrent liabilities, net sales or total revenue, gross profits, income from continuing operations and net income for TBC Corporation and The Pantry, Inc. as of or for the nine months ended September 30, 2003, and as of and for the three months ended December 25, 2003, respectively, and the most recent fiscal year end (dollars in thousands).

As of or for the:

  TBC Corporation
Nine months ended
September 30, 2003

  The Pantry, Inc.
Three months ended
December 25, 2003

Current assets   $ 407,153   $ 194,210
Noncurrent assets     231,481     797,760
Current liabilities     217,631     179,397
Noncurrent liabilities     167,961     678,384
Net sales or total revenue     947,789     751,336
Gross profits     299,259     140,363
Income from continuing operations     23,860     4,937
Net income     23,860     4,937

As of or for the fiscal year ended:


 

TBC Corporation
December 31, 2002


 

The Pantry, Inc.
September 25, 2003

Current assets   $ 317,773   $ 200,153
Noncurrent assets     156,098     714,012
Current liabilities     151,157     182,699
Noncurrent liabilities     99,594     602,801
Net sales or total revenue     1,109,663     2,776,361
Gross profits     301,843     510,804
Income from continuing operations     27,382     11,504
Net income     27,382     11,504

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4,100,000 Shares

GRAPHIC

Common Stock



PROSPECTUS SUPPLEMENT


Merrill Lynch & Co.
A.G. Edwards
Wachovia Securities
Banc of America Securities LLC
Credit Suisse First Boston
Raymond James
RBC Capital Markets
BB&T Capital Markets
Robert W. Baird & Co.
Stifel, Nicolaus & Company
  
Incorporated
Wells Fargo Securities

September 22, 2005






QuickLinks

TABLE OF CONTENTS Prospectus Supplement
Prospectus
PROSPECTUS SUPPLEMENT SUMMARY
Realty Income
Recent Developments
The Offering
RISK FACTORS
SELECTED FINANCIAL INFORMATION
USE OF PROCEEDS
CAPITALIZATION
PRICE RANGE OF COMMON STOCK AND DISTRIBUTION HISTORY
PROPERTIES
UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS
UNDERWRITING
LEGAL MATTERS
EXPERTS
INCORPORATION BY REFERENCE
TABLE OF CONTENTS
ABOUT THIS PROSPECTUS
THE COMPANY
FORWARD-LOOKING STATEMENTS
RISK FACTORS
USE OF PROCEEDS
RATIOS OF EARNINGS TO FIXED CHARGES
DESCRIPTION OF DEBT SECURITIES
DESCRIPTION OF COMMON STOCK
GENERAL DESCRIPTION OF PREFERRED STOCK
RESTRICTIONS ON OWNERSHIP AND TRANSFERS OF STOCK
UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS RELATED TO OUR REIT ELECTION
PLAN OF DISTRIBUTION
STOCKHOLDER RIGHTS PLAN
EXPERTS
LEGAL MATTERS
WHERE YOU CAN FIND MORE INFORMATION
INCORPORATION OF INFORMATION WE FILE WITH THE SEC
OTHER INFORMATION