Filed Pursuant to Rule 424(b)(3)
                                                     Registration No. 333-105095

PROSPECTUS

                             [USA INTERACTIVE LOGO]

                      4,400,000 SHARES OF USA COMMON STOCK

   This prospectus relates to the resale by the selling stockholders named in
this prospectus of up to 4,400,000 shares of common stock, par value $0.01 per
share, of USA Interactive, or USA, to be issued upon the exercise of options
granted by USA to Dr. Georg Kofler under a stock option agreement, dated as of
February 18, 2000, between USA and Dr. Kofler. This prospectus also relates to
the resale of an indeterminable number of additional shares of USA common stock
that may become issuable under the anti-dilution provisions of the stock option
agreement. Throughout this prospectus, we refer to the options granted under the
stock option agreement as the "Options" and the shares of USA common stock
offered by this prospectus as the "Shares."

   USA will not receive any proceeds from the sale of the Shares. Other than as
described in this prospectus, USA does not know whether or when holders of the
Options may exercise their Options for the Shares. After registration, the
selling stockholders may sell the Shares issued upon exercise of the Options
directly to purchasers. Alternatively, the selling stockholders may offer the
Shares through dealers or agents on terms to be determined at the time of the
sale. See "PLAN OF DISTRIBUTION."

   USA common stock is quoted on the Nasdaq National Market under the symbol
"USAI." On May 27, 2003, the last reported sale price of USA common stock prior
to printing of this prospectus was $37.10 per share.

   SEE "RISK FACTORS" BEGINNING ON PAGE 4 TO READ ABOUT FACTORS YOU SHOULD
CONSIDER IN CONNECTION WITH PURCHASING USA COMMON STOCK.

                             ---------------------

   NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A
SOLICITATION OF AN OFFER TO BUY ANY SECURITIES IN ANY JURISDICTION WHERE SUCH AN
OFFER OR SOLICITATION WOULD BE ILLEGAL.


                  The date of this prospectus is May 28, 2003



 USA Interactive.152 West 57th Street, New York, New York 10019. 212.314.7300


ABOUT THIS PROSPECTUS USA has filed with the Securities and Exchange Commission, or SEC, a registration statement, of which this prospectus forms a part, with respect to the resale of the Shares from time to time under Rule 415 under the Securities Act. This prospectus provides you with a general description of the Shares being offered. The section "Plan of Distribution" on page 7 provides a description of the sale of the securities. To the extent required, the number of Shares to be sold, the purchase price, the public offering price, the names of any agent or dealer and any applicable commission or discount with respect to a particular sale will be set forth in an accompanying prospectus supplement. A prospectus supplement also may update or change information contained in the basic prospectus. You should read both this prospectus and any prospectus supplement together with the additional information described in the section "WHERE YOU CAN FIND MORE INFORMATION." You should rely only on the information provided in this prospectus and in any prospectus supplement, including the information USA incorporates into this document by reference. USA has not authorized anyone to provide you with different information. Information contained on USA's website at www.usainteractive.com is not part of this prospectus. The offering of the securities covered by this prospectus shall not constitute an offer in any state where the offer is not permitted. You should not assume that the information in this prospectus, or any supplement to this prospectus, is accurate at any date other than the date indicated on the cover page of these documents. CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING INFORMATION This prospectus and the SEC filings that are incorporated by reference into this prospectus contain "forward-looking statements" within the meaning of the securities laws. These forward-looking statements include, but are not limited to, statements relating to USA's industry, plans, objectives, expectations, intentions, assumptions, anticipated financial performance, business prospects, other statements contained in this prospectus that are not historical facts and/or statements preceded by, followed by or that include the words the words "believes," "could," "expects," "anticipates," "estimates," "intend," "plans," "projects," "seeks," or similar expressions. USA has based these forward-looking statements on its current expectations and projections about future events, based on the information currently available to USA. For those statements, USA claims the protection of the safe harbors for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks, uncertainties and assumptions, including those described in the section "RISK FACTORS," that may affect the operations, performance, development and results of USA's business. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date stated, or if no date is stated, as of the date of this prospectus. You should understand that the following important factors, in addition to those discussed in the documents incorporated in this prospectus by reference, could affect USA's future results and could cause those results to differ materially from those expressed in such forward-looking statements: o Material adverse changes in economic conditions generally, or in such conditions affecting USA's markets or industries; o Future regulatory and legislative actions and conditions affecting USA's operating areas; o Competition from others; o Successful integration of USA's divisions' management structures; o Product demand and market acceptance; o The ability to protect proprietary information and technology or to obtain necessary licenses on commercially reasonable terms; o The ability to maintain the integrity of USA's systems and infrastructure; o The ability to expand into and successfully operate in foreign markets; o Obtaining and retaining key executives and employees;

o Acts of terrorism; o War or political instability; and o Other risks and uncertainties as may be detailed from time to time in USA's public announcements and filings with the Securities and Exchange Commission. USA undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or any other reason. In light of these risks, uncertainties and assumptions, the forward-looking events discussed in this prospectus may not occur. WHERE YOU CAN FIND MORE INFORMATION USA files annual, quarterly and current reports, proxy statements and other information with the SEC under the Exchange Act. You may read and copy this information at the SEC's public reference room at 450 Fifth Street, N.W., Room 1024, Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the public reference room. USA's SEC filings are also available to you free of charge at the SEC's website at www.sec.gov. 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. The SEC allows us to "incorporate by reference" information into this prospectus, which means that USA can disclose important information to you by referring you to another document filed separately with the SEC. The information incorporated by reference is deemed to be part of this prospectus, except for any information superseded by information contained directly in this prospectus. Information that USA subsequently files with the SEC will automatically update this prospectus. This prospectus incorporates by reference the documents set forth below that USA has previously filed with the SEC. These documents contain important information about USA and its financial condition. 1. Annual Report on Form 10-K for the year ended December 31, 2002, filed on March 31, 2003. 2. Quarterly Report on Form 10-Q for the quarter ended March 31, 2003, filed on May 15, 2003. 3. Definitive proxy statement filed on April 30, 2003. 4. Current Reports on Form 8-K and amendments thereto filed on January 21, 2003, February 7, 2003, February 12, 2003, February 26, 2003, March 19, 2003, March 25, 2003, March 26, 2003, April 9, 2003, April 10, 2003, April 15, 2003, May 2, 2003 and May 5, 2003 (in each case other than information furnished under Regulation FD). 5. Amendment No. 1 to Registration Statement on Form S-4 (file no. 333-105014) filed on May 21, 2003 (only with respect to pro forma financial statement information and the description of capital stock contained therein). All documents filed by USA with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this prospectus and prior to the termination of the offering are incorporated by reference into this prospectus. You may request free copies of these filings by writing or telephoning us at the following address: USA Interactive 152 West 57th Street New York, New York 10019 (212) 314-7300 Attention: Corporate Secretary Information contained on USA's website is not part of this prospectus. You should rely only on the information contained in this prospectus. USA has not authorized anyone to provide you with information different from that contained in this prospectus. The information contained in this prospectus is accurate only as of the date of this prospectus and, with respect to material incorporated herein by reference, the dates of such referenced material. 2

USA INTERACTIVE USA (Nasdaq: USAI) engages worldwide in the business of interactivity via the Internet, the television and the telephone. USA's multiple brands are organized across three areas: Electronic Retailing, Information & Services and Travel Services. Electronic Retailing is comprised of HSN, America's Store, HSN.com, and Home Shopping Europe and Euvia in Germany. Information & Services includes Ticketmaster, Match.com, uDate, Citysearch, Entertainment Publications, Evite, and Precision Response Corporation. Travel Services consists of Expedia (Nasdaq: EXPE), Hotels.com (Nasdaq: ROOM), Interval International, TV Travel Group and USA's forthcoming U.S. cable travel network. USA is incorporated under the laws of the State of Delaware. USA's executive offices are located at 152 West 57th Street, New York, New York 10019 and USA's telephone number is (212) 314-7300. THE OFFERING NUMBER OF SHARES BEING OFFERED 4,400,000 (subject to HEREBY adjustment as a result of the anti-dilution provisions of the stock option agreement) USA COMMON STOCK AUTHORIZED As of the date of this AND OUTSTANDING prospectus, USA is authorized to issue up to 1,600,000,000 shares of USA common stock. As of May 15, 2003, there were 457,515,258 shares of USA common stock outstanding. USE OF PROCEEDS USA will not receive any proceeds from the sale of Shares by the selling stockholders TRANSFER AGENT The Bank of New York NASDAQ NATIONAL MARKET SYMBOL USAI 3

RISK FACTORS AN INVESTMENT IN USA'S SECURITIES INVOLVES A HIGH DEGREE OF RISK. YOU SHOULD CONSIDER THE FOLLOWING FACTORS CAREFULLY BEFORE DECIDING TO PURCHASE USA'S SECURITIES. ADDITIONAL RISKS NOT PRESENTLY KNOWN TO USA OR THAT USA CURRENTLY DEEMS IMMATERIAL MAY ALSO IMPAIR ITS BUSINESS OPERATIONS. USA DEPENDS ON ITS KEY PERSONNEL. USA is dependent upon the continued contributions of its senior corporate management, particularly Mr. Diller, the chairman and chief executive officer of USA, and certain key employees for its future success. Mr. Diller does not have an employment agreement with USA, although he has been granted options to purchase a substantial number of shares of USA common stock. If Mr. Diller no longer serves in his positions at USA, USA's business, as well as the market price of USA common stock, could be substantially adversely affected. USA cannot assure you that it will be able to retain the services of Mr. Diller or any other members of its senior management or key employees. USA IS CONTROLLED BY MR. DILLER AND IN HIS ABSENCE WILL BE CONTROLLED BY LIBERTY MEDIA CORPORATION. Subject to the terms of an amended and restated stockholders agreement, dated as of December 16, 2001, among Universal Studios, Inc. ("Universal"), Liberty Media Corporation ("Liberty"), Mr. Diller and Vivendi Universal, S.A. ("Vivendi"), Mr. Diller effectively controls the outcome of all matters submitted to a vote or for the consent of USA's stockholders (other than with respect to the election by the holders of USA common stock of 25% of the members of USA's board of directors (rounded up to the nearest whole number) and matters as to which a separate class vote of the holders of USA common stock or USA preferred stock is required under Delaware law). In addition, under an amended and restated governance agreement, dated as of December 16, 2001, among USA, Vivendi, Universal, Liberty and Mr. Diller, each of Mr. Diller and Liberty generally has the right to consent to limited matters in the event that USA's ratio of total debt to EBITDA, as defined in the governance agreement, equals or exceeds 4:1 over a continuous 12-month period. USA cannot assure you that Mr. Diller and Liberty will consent to any such matter at a time when USA is highly leveraged, in which case USA would not be able to engage in such transaction or take such actions. Upon Mr. Diller's permanent departure from USA, Liberty generally would be able to control USA through its ownership of shares of USA Class B common stock. USA'S SUCCESS DEPENDS ON MAINTAINING THE INTEGRITY OF ITS SYSTEMS AND INFRASTRUCTURE. A fundamental requirement for online commerce and communications is the secure transmission of confidential information, such as credit card numbers or other personal information, over public networks. USA's current security measures may not be adequate and, if any compromise of USA's security were to occur, it could have a detrimental effect on USA's reputation and adversely affect its ability to attract customers. As USA's operations continue to grow in both size and scope, USA will need to improve and upgrade its systems and infrastructure. This may require USA to commit substantial financial, operational and technical resources before the volume of business increases, with no assurance that the volume of business will increase. USA relies on its own affiliates' and third-party computer systems and service providers to facilitate and process a portion of its transactions. Any interruptions, outages or delays in these services, or a deterioration in their performance, could impair USA's ability to process transactions for its customers and the quality of service USA can offer to them. It is unlikely that USA could make up for the level of orders lost in these circumstances by increased phone orders. SYSTEM INTERRUPTION AND THE LACK OF INTEGRATION AND REDUNDANCY IN USA'S INFORMATION SYSTEMS MAY AFFECT ITS BUSINESS. USA's subsidiaries rely on computer and other systems in order to provide their services to customers. At times, USA subsidiaries may experience occasional system interruptions that make some or all systems unavailable or prevent the subsidiaries from efficiently fulfilling orders or providing services to third parties. To prevent system interruptions, USA and its subsidiaries continually add additional software and hardware and upgrade systems and network infrastructure to accommodate both increased traffic on websites and increased sales volume. Computer and communications systems of USA and its subsidiaries could be damaged or interrupted by fire, flood, power loss, telecommunications failure, break-ins, earthquakes, acts of war or terrorism, acts of God, computer viruses, physical 4

or electronic break-ins and similar events or disruptions. Any of these events could cause system interruption, delays and loss of critical data, and could prevent USA subsidiaries from providing services to third parties. While USA and its subsidiaries do have backup systems for certain aspects of operations, the systems are not fully redundant and disaster recovery planning may not be sufficient for all eventualities. In addition, USA and its subsidiaries may have inadequate insurance coverage or insurance limits to compensate for losses from a major interruption. If any of this were to occur, it could damage the reputation of USA and its subsidiaries and be expensive to remedy. DECLINES OR DISRUPTIONS IN THE INDUSTRIES IN WHICH USA OPERATES, SUCH AS THOSE CAUSED BY TERRORISM, WAR OR GENERAL ECONOMIC DOWNTURNS, COULD HARM USA'S BUSINESSES. IN ADDITION, A NEGATIVE FINANCIAL PERFORMANCE OF COMPANIES IN WHICH USA IS THE MAJORITY STOCKHOLDER CAN HAVE A NEGATIVE AFFECT ON USA'S STOCK PRICE. USA's businesses in general are sensitive to trends or events that are outside of USA's control. For example, adverse trends or events, such as general economic downturns, decreases in consumer spending, work stoppages and political instability, may reduce the popularity and frequency of the events to which USA sells tickets, reduce travel and may affect call center and other operations in areas where these trends or events occur. The occurrence of any of these adverse trends or events could significantly impact USA's businesses, results of operations or financial condition. In addition, USA's stock price may be adversely affected by negative reports of the results of operations or declines in the stock price of companies in which USA is a major stockholder, regardless of the affect these negative reports or stock price declines may have on USA's business, financial condition, results of operations or cash flow. Travel is highly sensitive to traveler safety concerns, and thus declines after acts of terrorism that impact the perceived safety of travelers could significantly impact USA's businesses, results of operations or financial condition. In the aftermath of the terrorist attacks of September 11, 2001, for example, the travel industry experienced a protracted decrease in demand for air travel due to fears regarding additional acts of terrorism and increased costs and reduced operations by airlines due, in part, to new security directives adopted by the Federal Aviation Administration. USA cannot predict the future scope and effects of these changes, which could significantly impact USA's long-term results of operations or financial condition. USA MAY EXPERIENCE OPERATIONAL AND FINANCIAL RISKS IN CONNECTION WITH ITS ACQUISITIONS. IN ADDITION, SOME OF THE BUSINESSES USA ACQUIRES MAY INCUR SIGNIFICANT LOSSES FROM OPERATIONS OR EXPERIENCE IMPAIRMENT OF CARRYING VALUE. USA's future growth may be a function, in part, of acquisitions. To the extent that USA grows through acquisitions, it will face the operational and financial risks commonly encountered with that type of a strategy. USA would also face operational risks, such as failing to assimilate the operations and personnel of the acquired businesses, disrupting its ongoing business, dissipating its limited management resources and impairing its relationships with employees and customers of acquired businesses as a result of changes in ownership and management. Some of USA's acquisitions may not be successful and their performances may result in the impairment of their carrying value. CHANGING LAWS AND REGULATIONS, AND LEGAL UNCERTAINTIES, REGARDING THE INTERNET MAY IMPAIR USA'S GROWTH AND HARM ITS BUSINESSES. A number of proposed laws and regulations regarding the Internet, including with respect to consumer privacy, have been proposed or considered that could impact USA's businesses. USA cannot predict whether any of these types of laws or regulations will be enacted or amended and what effect, if any, such laws or regulations would have on its businesses, financial condition or results of operations. In addition, the application of various sales, use and other tax provisions under state and local law to USA's historical and new products and services sold via the Internet, television and telephone is subject to interpretation by the applicable taxing authorities. USA believes it is compliant with these tax provisions, but there can be no assurances that taxing authorities will not take a contrary position or that such positions will not have a material adverse effect on USA's businesses, financial condition and results of operations. USE OF PROCEEDS All of the Shares being offered under this prospectus are being sold by the selling stockholders. USA will not receive any proceeds from the sale of the Shares by the selling stockholders. 5

SELLING STOCKHOLDERS This prospectus relates to the resale from time to time under Rule 415 of the Securities Act of up to 4,400,000 Shares to be issued upon the exercise of the Options. The Options were granted under a stock option agreement, dated as of February 18, 2000, between USA and Dr. Kofler and USA's 1999 Stock Option Plan, and are subject to the terms and conditions of the stock option agreement and the stock option plan. Subject to applicable law (including applicable federal and state securities laws), the Options are freely transferable by the holders of the Options by means of a written notice to USA identifying the transferee of such Option, or by will or the laws of decent and distribution or pursuant to a qualified domestic relations order. As of the date of this prospectus, Options to purchase 3,300,000 Shares were exercisable, and Options to purchase an additional 1,100,000 Shares will become exercisable on February 18, 2004. The Options expire on February 18, 2010. This prospectus also relates to an indeterminable number of additional shares of USA common stock that may become issuable pursuant to the anti-dilution provisions of the stock option agreement. This prospectus covers the offer and sale by each selling stockholder named herein of the number of Shares owned by the selling stockholder set forth below. USA's registration of these Shares does not necessarily mean that the selling stockholders will sell all of their Shares. The following table sets forth (1) the names of each selling stockholder, (2) the number of Shares beneficially owned by each selling stockholder and that will be owned upon exercise of the Options as of May 28, 2003, (3) the number of Shares that may be offered or sold by or on behalf of each selling stockholder hereunder, (4) the amount and (if one percent or more) the percentage of shares of USA common stock to be owned by each selling stockholder upon the completion of the offering assuming all Shares offered by such selling stockholder are sold, and (5) the nature of any position, office or other material relationship, if any, that the selling stockholder has had with USA within the past three years. SHARES SHARES BENEFICIALLY OWNED SHARES TO BENEFICIALLY PRIOR TO THE BE OWNED AFTER THE SELLING STOCKHOLDERS OFFERING SOLD OFFERING** -------------------- -------- ---- -------- NUMBER PERCENT ------ ------- Dr. Georg Kofler *** 3,200,000 * 3,200,000 0 Dr. Bernard Heiss 1,200,000 * 1,200,000 0 ----------------- * Less than one percent (1%) ** Because the selling stockholders may sell all or a portion of the Shares that are being offered pursuant to this prospectus, the number of shares of USA common stock that will be owned by each selling stockholder upon termination of this offering cannot be determined. However, for purposes of this table, USA has assumed that the maximum number of Shares held by the selling stockholders is sold. See "PLAN OF DISTRIBUTION." ***The Options were granted to Dr. Kofler on February 18, 2000 in consideration of his entering into an employment arrangement with a German affiliate of HSN. In July of 2000, Dr. Kofler was elected to the board of directors of USA, from which he resigned in February of 2002. As of the date of this prospectus, Dr. Kofler is neither an officer nor employee of USA or any USA affiliate. Dr. Kofler has a current economic interest of 1.23% in the Italian home shopping business in which USA is a passive minority partner and an expectation of an effective 3% interest in USA-controlled Euvia. The Shares are being registered to permit public secondary offering of the Shares. The selling stockholders may offer the Shares for resale from time to time under Rule 415 of the Securities Act. In addition, the selling stockholders identified above may sell, transfer or otherwise dispose of all or a portion of the Shares that they own in transactions exempt from the registration requirements of the Securities Act. See "PLAN OF DISTRIBUTION." 6

PLAN OF DISTRIBUTION GENERAL The Shares may be offered from time to time by the selling stockholders for resale through this prospectus in one or more transactions at fixed prices, at market prices at the same time of sale, at varying prices determined at the time of sale or at negotiated prices. The selling stockholders may offer their Shares in one or more of the following transactions: o to or through dealers or agents; o directly by the selling stockholders; o in brokerage transactions; o on any national securities exchange or quotation service on which the common stock may be listed or quoted at the time of sale, including the Nasdaq National Market; o in the over-the-counter markets; or o a combination of any of the above transactions or by any other legally available means. The selling stockholders will act independently of USA in making decisions with respect to the timing, manner and size of each sale. Shares covered by this prospectus which qualify for sale pursuant to Rule 144 of the Securities Act may also be sold under Rule 144 and do not qualify for sale pursuant to this prospectus. The selling stockholders may not use the registration statement of which this prospectus is a part for purposes of an underwritten offering. In order to comply with securities laws in certain jurisdictions, the Shares being offered under this prospectus will be offered or sold in such jurisdictions only through registered or licensed brokers or dealers. In addition, in certain jurisdictions, the securities offered hereby may not be offered or sold unless they have been registered or qualified for sale in such jurisdictions or an exemption from registration or qualification is available and is complied with. This registration statement will terminate upon the earlier of the resale of the Shares offered under this prospectus or the qualification of the Shares for transfer under Rule 144 of the Securities Act. PROCEEDS, COMMISSIONS AND EXPENSES USA will not receive any proceeds from the sale of Shares by the selling stockholders. USA will pay any printing costs, SEC filing fees and other fees, disbursements and out-of-pocket expenses and costs incurred by us in connection with the preparation of the registration statement of which this prospectus is a part and in complying with all applicable securities and blue sky laws. The selling stockholders will pay all discounts and selling commissions (if any) applicable to the sale of their Shares. The selling stockholders will pay for the fees and expenses of their counsel, as well as all applicable stock transfer taxes. The selling stockholders and any broker-dealers or agents that participate with the selling stockholders in the distribution of the Shares may be deemed to be "underwriters" within the meaning of the Securities Act, and any commissions received by them and any profit on the resale of the Shares may be deemed to be underwriting commissions or discounts under the Securities Act. NASDAQ LISTING STATUS USA common stock is currently listed on the Nasdaq National Market under the symbol "USAI." CERTAIN MATERIAL UNITED STATES FEDERAL TAX CONSEQUENCES The following is a general discussion of certain material United States federal income and estate tax consequences of the ownership and disposition of USA common stock. This discussion is based on current law, which is subject to change, possibly with retroactive effect, or different interpretations. This discussion is limited to holders who hold USA common stock as capital assets. Moreover, this discussion is for general information only and does not address all the tax consequences that may be relevant in light of your particular circumstances, nor 7

does it discuss special tax provisions which may apply if you have relinquished United States citizenship or residence. EACH PROSPECTIVE PURCHASER IS ADVISED TO CONSULT A TAX ADVISOR WITH RESPECT TO CURRENT AND POSSIBLE FUTURE TAX CONSEQUENCES OF PURCHASING, OWNING AND DISPOSING OF USA COMMON STOCK, AS WELL AS ANY TAX CONSEQUENCES THAT MAY ARISE UNDER STATE, LOCAL, FOREIGN OR OTHER TAX LAWS. As used herein, a "United States person" is o an individual who is a citizen or resident of the United States; o a corporation created or organized in the United States or under the laws of the United States or of any state; o an estate the income of which is includible in gross income for United States federal income taxation regardless of its source; o a trust if a court in the United States is able to exercise primary supervision over the administration of the trust and one or more United States persons have the authority to control all substantial decisions of the trust; or o any person otherwise subject to United States federal income tax on a net income basis in respect of its worldwide taxable income. A "U.S. Holder" is a beneficial owner of USA common stock who is a United States person. A "Non-U.S. Holder" is a beneficial owner that is not a U.S. Holder. If a partnership (including for this purpose any entity treated as a partnership for United States federal tax purposes) is a beneficial owner of USA common stock, the treatment of a partner in the partnership will generally depend upon the status of the partner and upon the activities of the partnership. The partnership and partners in such partnership should consult their tax advisors about the United States federal income tax consequences of owning and disposing of USA common stock. TAXATION OF U.S. HOLDERS This section describes the tax consequences to a U.S. Holder. If you are not a U.S. Holder, this section does not apply to you. DISTRIBUTIONS. The amount of any distribution USA makes in respect of its common stock will be equal to the amount of cash and the fair market value, on the date of distribution, of any property distributed. In general, distributions on USA common stock will constitute dividend income, taxable at ordinary income rates, to the extent of USA's current or accumulated earnings and profits. Any excess will be treated as non-taxable return of capital to the extent of the holder's basis in the common stock, and thereafter as capital gain. SALES OR EXCHANGES. On the sale, exchange or other disposition of shares of USA common stock (other than a redemption of the common stock, discussed below), holders will generally recognize capital gain or loss equal to the difference between the amount of cash and the fair market value of any property received upon the sale, exchange or other disposition and the adjusted tax basis in the stock sold, exchanged or disposed of. This gain or loss will be long-term capital gain or loss if at the time of the sale, exchange or disposition the holder has held the stock sold, exchanged or disposed of for more than one year. The deductibility of capital losses is subject to limitations. DIVIDENDS TO CORPORATE SHAREHOLDERS. In general, a distribution on the USA common stock that is taxable as a dividend and that is made to a corporate shareholder will qualify for the 70% corporate dividends-received deduction under the Internal Revenue Code. However, a dividend that arises upon a redemption of common stock will generally constitute an "extraordinary dividend" under Section 1059 of the Internal Revenue Code. In addition, actual or constructive dividends on common stock that are declared, announced or agreed to within two years of the holder's acquisition of the stock may also constitute "extraordinary dividends." If the extraordinary dividend rules apply, the corporate shareholder may lose some or all of the benefits of the dividends-received deduction. Furthermore, there are many exceptions and restrictions relating to the availability of the dividends-received deduction. Consequently, corporate shareholders should consult their own tax advisors regarding the extent, if any, that the dividends-received deduction is available to them and the extent to which the extraordinary dividend rules may apply. 8

REDEMPTION OF USA COMMON STOCK. A redemption of USA common stock generally would be a taxable event and would be treated as if the holder sold the common stock if the redemption: o results in a "complete termination" of the holder's interest in USA stock; o is "substantially disproportionate" (i.e., after the redemption, the percentage of all USA's outstanding voting stock that is owned by the holder is less than 80% of the percentage of all of USA's outstanding voting stock (and the percentage of all of USA's outstanding common stock that is owned by the holder is less than 80% of the percentage of all of USA's outstanding common stock) that was owned by the holder immediately before the redemption); or o is "not essentially equivalent to a dividend" (i.e., the redemption must meaningfully reduce the holder's proportionate interest in USA based on the holder's particular circumstance; the Internal Revenue Service or the IRS has indicated that this test is satisfied by even a small reduction in the percentage interest of a shareholder whose relative stock interest in a publicly held corporation is minimal and who exercises no control over corporate affairs). In determining whether any of these tests has been met, holders must take into account the shares of stock actually owned and the shares of stock constructively owned by reason of certain constructive ownership rules set forth in Section 318 of the Internal Revenue Code. If stock is redeemed in a redemption that meets one of the tests described above, the holder generally would recognize taxable gain or loss equal to the difference between the amount of cash and the fair market value of property received and the holder's tax basis in the stock redeemed. This gain or loss would be long-term capital gain or capital loss if the stock were held for more than one year. If a redemption does not meet any of the tests described above, the entire amount of the cash and the fair market value of property received generally would be taxed as a dividend as explained above under "Distributions." If a redemption is treated as a distribution that is taxable as a dividend, the holder's basis in the redeemed stock would generally be transferred to the holder's remaining shares of USA stock, if any. INFORMATION REPORTING AND BACKUP WITHHOLDING. Information reporting will generally apply to dividends received on USA common stock and to the proceeds received on the sale or disposition of such stock by a U.S. Holder who is not an exempt recipient. Generally, individuals are not exempt recipients, whereas corporations are exempt recipients. Backup withholding will apply only if the U.S. Holder is not an exempt recipient and: o fails to furnish its Taxpayer Identification Number or the TIN which, in the case of an individual, is his or her Social Security Number; o furnishes an incorrect TIN; o in the case of dividends, is notified by the IRS that it has failed to properly report payments of interest or dividends; or o fails to certify, under penalty of perjury, that it has furnished a correct TIN, has not been notified by the IRS that it is subject to backup withholding (or has since been notified by the IRS that it is no longer subject to backup withholding) and is a U.S. person (including a U.S. resident alien). U.S. Holders should consult their tax advisors regarding their qualification for exemption from backup withholding and the procedure for demonstrating such an exemption if applicable. The amount of any backup withholding from a payment to a U.S. Holder is not an additional tax and is allowable as a credit against the U.S. Holder's United States federal income tax liability, if any, or may be claimed as a refund, provided that the required information is furnished to the IRS. TAXATION OF NON-U.S. HOLDERS This section describes the tax consequences to a Non-U.S. Holder. If you are a U.S. Holder, see the above discussion under "--Taxation of U.S. Holders." DIVIDENDS. If dividends are paid, Non-U.S. Holders will be subject to withholding of United States federal income tax at a 30% rate or a lower rate as may be specified by an applicable income tax treaty. To claim the benefit of a lower rate under an income tax treaty, Non-U.S. Holders must properly file with the payor an IRS Form W- 9

8BEN, or successor form, claiming an exemption from or reduction in withholding under the applicable tax treaty. In addition, where dividends are paid or deemed paid to a Non-U.S. Holder that is a partnership or other pass through entity, persons holding an interest in the entity may need to provide certification claiming an exemption from or reduction in withholding under the applicable treaty. If actual or deemed dividends are considered effectively connected with the conduct of a trade or business within the United States and, where a tax treaty applies, are attributable to a United States permanent establishment, those dividends will not be subject to withholding tax, but instead will be subject to United States federal income tax on a net basis at applicable graduated individual or corporate rates, provided an IRS Form W-8ECI, or successor form, is filed with the payor. In the case of a foreign corporation, any effectively connected dividends may, under certain circumstances, be subject to an additional "branch profits tax" at a rate of 30% or a lower rate as may be specified by an applicable income tax treaty. Non-U.S. Holders must comply with the certification procedures described above, or, in the case of payments made outside the United States with respect to an offshore account, certain documentary evidence procedures, directly or under certain circumstances through an intermediary, to obtain the benefits of a reduced rate under an income tax treaty with respect to dividends paid or deemed paid with respect to USA common stock. In addition, if a Non-U.S. Holder is required to provide an IRS Form W-8ECI or successor form, as discussed above, the Non-U.S. Holder must also provide its tax identification number. Non-U.S. Holders that are eligible for a reduced rate of United States withholding tax pursuant to an income tax treaty may obtain a refund of any excess amounts withheld by filing an appropriate claim for refund with the IRS. GAIN ON DISPOSITION OF USA COMMON STOCK. Non-U.S. Holders generally will not be subject to United States federal income tax on any gain realized on the sale or other disposition of USA common stock unless: o the gain is considered effectively connected with the conduct of a trade or business within the United States and, where a tax treaty applies, is attributable to a United States permanent establishment (and, in which case, if the holder is a foreign corporation, may be subject to an additional "branch profits tax" equal to 30% or a lower rate as may be specified by an applicable income tax treaty); o the holder is an individual who holds the USA common stock as a capital asset and is present in the United States for 183 or more days in the taxable year of the sale or other disposition and other conditions are met; or o USA is or has been a "United States real property holding corporation," or a USRPHC, for United States federal income tax purposes. USA believes that it is not currently, and is not likely to become, a USRPHC. If USA was to become a USRPHC, then gain on the sale or other disposition of USA common stock generally would not be subject to United States federal income tax provided: o USA common stock were "regularly traded" on an established securities market; and o the holder did not actually or constructively own more than 5% of the USA common stock during the shorter of the five-year period preceding the disposition or the holder's holding period. FEDERAL ESTATE TAX. In the case of an individual, USA common stock held at the time of death will be included in the individual's gross estate for United States federal estate tax purposes, and may be subject to United States federal estate tax, unless an applicable estate tax treaty provides otherwise. INFORMATION REPORTING AND BACKUP WITHHOLDING. USA must report annually to the IRS and to each holder the amount of dividends paid or deemed paid and the tax withheld with respect to those dividends, regardless of whether withholding was required. Copies of the information returns reporting those dividends and withholding may also be made available to the tax authorities in the country in which a Non-U.S. Holder resides under the provisions of an applicable income tax treaty or other applicable agreements. Backup withholding is generally imposed on certain payments to persons that fail to furnish the necessary identifying information to the payor. Generally Non-U.S. Holders will be subject to backup withholding with respect to dividends paid on USA common stock unless they certify their status as Non-U.S. Holders. The payment of proceeds of a sale of USA common stock effected by or through a United States office of a broker will be subject to both backup withholding and information reporting unless the holder provides the payor with the holder's name and address and certifies its Non-U.S. Holder status or otherwise establishes an exemption. In 10

general, backup withholding and information reporting will not apply to the payment of the proceeds of a sale of USA common stock by or through a foreign office of a broker. If, however, such broker is, for United States federal income tax purposes, a United States person, a controlled foreign corporation, a foreign person that derives 50% or more of its gross income for certain periods from the conduct of a trade or business in the United States, or, a foreign partnership that at any time during its tax year either is engaged in the conduct of a trade or business in the United States or has as partners one or more United States persons that, in the aggregate, hold more than 50% of the income or capital interest in the partnership, such payments will be subject to information reporting, but not backup withholding, unless such broker has documentary evidence in its records that the holder is a Non-U.S. Holder and certain other conditions are met or the holder otherwise establishes an exemption. Any amounts withheld under the backup withholding rules generally will be allowed as a refund or a credit against the holder's United States federal income tax liability provided the required information is furnished in a timely manner to the IRS. LEGAL MATTERS The validity of the Shares offered by this prospectus is being passed upon for us by David Ellen, Deputy General Counsel of USA. EXPERTS The consolidated financial statements and the related financial statement schedule of USA Interactive at December 31, 2002 and 2001, and for each of the three years in the period ended December 31, 2002, incorporated into this prospectus by reference to USA's Annual Report on Form 10-K for the year ended December 31, 2002, have been audited by Ernst & Young LLP, independent auditors, as set forth in their report, which is incorporated herein by reference, and has been incorporated in reliance upon such report given on the authority of such firm as experts in accounting and auditing. 11