<Page> AS FILED PURSUANT TO RULE 424(b)(5) REGISTRATION NO. 333-33096 PROSPECTUS - --------- WELLS FARGO FINANCIAL, INC. $3,000,000,000 DEBT SECURITIES --------------- We may issue up to an aggregate $3.0 billion of debt securities at one or more times. We will describe the specific terms of each series of debt securities that we offer in a supplement to this prospectus. Supplements will be made available at the time of each offering of debt securities. You should read this prospectus and any supplement carefully before you invest. -------------------- 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 AND COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE. -------------------- The date of this prospectus is April 18, 2000 <Page> WHERE YOU CAN FIND MORE INFORMATION ABOUT WELLS FARGO FINANCIAL We file annual, quarterly and current reports and other information with the Securities and Exchange Commission. You may read and copy any document we file with the Securities and Exchange Commission at the Securities and Exchange Commission's public reference rooms in Washington, D.C., Chicago, Illinois, and New York, New York. Please call the Securities and Exchange Commission at 1-800-SEC-0330 for further information on the public reference rooms. Our Securities and Exchange Commission filings are also available over the Internet at the Securities and Exchange Commission's website at http://www.sec.gov. Effective at the close of business on June 30, 2000, we changed our name from Norwest Financial, Inc. to Wells Fargo Financial, Inc. Filings made by us with the Securities and Exchange Commission prior to July 1, 2000 will be found indexed and filed under Norwest Financial, Inc. INCORPORATION OF INFORMATION WE FILE WITH THE SEC The Securities and Exchange Commission allows us to incorporate by reference the information we file with them, which means that we can disclose important information to you by referring you directly to those documents. The information incorporated by reference is an important part of this prospectus. Information that we file later with the Securities and Exchange Commission will automatically update and supercede information contained in this prospectus and the accompanying prospectus supplement. We incorporate by reference the documents listed below and any future filings made with the Commission under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934 until we sell all of the securities we are offering: - Annual Report on Form 10-K for the year ended December 31, 1999; You may request a free copy of any of these filings by writing or telephoning us at: Wells Fargo Financial, Inc. 206 Eighth Street Des Moines, Iowa 50309 Attn: Treasurer's Department Telephone: (515) 243-2131 Because we list some of our debt securities on the New York Stock Exchange, you may also inspect the filings described above, as well as other information, at the offices of the New York Stock Exchange, 20 Broad Street, New York, New York 10005. You should rely only on the information incorporated by reference or provided in this prospectus or any prospectus supplement. We have not authorized anyone else to provide you with additional or different information. If anyone else provided you with different information, you should not rely on it. You should not assume that the information in this prospectus or any prospectus supplement is accurate as of any date other than the date on the front of those documents. WELLS FARGO FINANCIAL, INC. Wells Fargo Financial is a leading diversified consumer finance company. Our consumer finance operations make loans to individuals and purchase sales finance contracts though 906 branch offices primarily in 46 states, Guam, Saipan, Puerto Rico, Argentina and the ten Canadian provinces. We are a wholly-owned subsidiary of Wells Fargo & Company. Wells Fargo & Company is a diversified financial services organization which, at December 31, 1999, had consolidated assets totaling approximately $218 billion. 2 <Page> Our principal executive offices are located at 206 Eighth Street, Des Moines, Iowa 50309. Our telephone number is (515) 243-2131. When we refer to "Wells Fargo Financial," "we" or "our" in this prospectus, we mean Wells Fargo Financial, Inc. and its subsidiaries on a consolidated basis, unless the context otherwise requires. We use "Wells Fargo Financial" to refer to us both before and after the close of business on June 30, 2000, when we changed our name from Norwest Financial, Inc. to Wells Fargo Financial, Inc., except in referring to specific documents and financial statements dated, filed or issued prior to July 1, 2000. USE OF PROCEEDS Unless we indicate otherwise in a prospectus supplement, we will use the net proceeds from the sale of the debt securities for general corporate purposes. These purposes may include bulk purchases of finance receivables, acquisitions of branch offices, consumer finance operations and other related businesses or the repayment of outstanding indebtedness. The net proceeds may be invested temporarily or applied to repay short term debt until they are used for their stated purposes. RATIOS OF EARNINGS TO FIXED CHARGES The ratio of earnings to fixed charges for Wells Fargo Financial is set forth below for the periods indicated: <Table> <Caption> YEARS ENDED DECEMBER 31, - -------------------------------- 1995 1996 1997 1998 1999 - ---- ---- ---- ---- ---- 2.13 2.11 2.00 1.72 1.78 </Table> For the purpose of calculating the ratio of earnings to fixed charges we have divided earnings plus fixed charges and income taxes by fixed charges. Fixed charges consist of interest and debt expenses plus the portion of rentals, which we deem to be representative of the interest factor. DESCRIPTION OF DEBT SECURITIES The securities we are offering will be either senior or senior subordinated debt. The senior debt securities and subordinated debt securities will be issued under separate indentures. The senior debt securities will be issued under an indenture, dated as of November 1, 1991, between Norwest Financial, Inc. (now called Wells Fargo Financial, Inc.) and The First National Bank of Chicago (now called Bank One Trust Company, National Asssociation), as trustee. The subordinated debt securities will be issued under an Indenture, dated as of May 1, 1986, as amended and supplemented by a First Supplemental Indenture dated as of February 15, 1991, between Norwest Financial, Inc. (now called Wells Fargo Financial, Inc.) and Harris Trust and Savings Bank, as trustee. Unless otherwise indicated, Bank One Trust Company, National Association and Harris Trust and Savings Bank will be referred to herein as the "trustee". The following summaries of the material provisions of the indentures are not complete. You should read all of the provisions of the indentures, including the definitions of certain terms. These summaries set forth certain general terms and provisions of the securities to which any prospectus supplement may relate. The particular terms of the securities offered by any prospectus supplement and the applicability of the general provisions will be described in the appropriate prospectus supplement. Unless otherwise indicated, parenthetical section references refer to each of the indentures. 3 <Page> SPECIFIC TERMS OF EACH SERIES Each time that we issue a new series of debt securities, the prospectus supplement relating to that new series will specify the particular amount, price or other terms of these debt securities. These terms may include: - the title of the debt securities and whether they will be senior or subordinated debt; - any limit on the total principal amount of the series of debt securities; - the date or dates on which the principal of and premium, if any, on the debt securities will be payable; - the interest rate or rates on the series of debt securities and the date from which any such interest will accrue; - the dates on which we will pay interest on the series of debt securities and the regular record date for determining who is entitled to the interest payable on any interest payment date; - the place or places where principal of and premium, if any, and interest on the debt securities will be payable; - any redemption dates, prices, obligations and restrictions on the series of debt securities; - any sinking fund or other provisions that would obligate us to repurchase or otherwise redeem the series of debt securities; - the denominations in which the series of debt securities will be issued, if other than denominations of $1,000 and multiples of $1,000; - the portion of the principal amount of the debt securities, other than their principal amount, that is payable on the declaration of acceleration of the maturity; - the applicable overdue rate if other than the interest rate stated in the title of the series of debt securities; - any modifications of or additions to the events of default; - the currency in which the debt securities will be denominated or in which payment of the principal of and premium and interest on any debt securities will be made, if other than U.S. dollars; - if the principal of and premium or interest on any series of debt securities is to be payable at our election or at the election of a holder of the debt securities in a currency other than that in which the debt securities are denominated, the period or periods within which and the terms and conditions on which these elections may be made; - if the amount of principal of and premium or interest on any series of debt securities may be determined by reference to an index based on either a currency other than that in which the debt securities are payable or any other method specifying the manner in which these amounts will be determined; - whether and to what extent any other means of satisfaction and discharge, which is sometimes referred to as "defeasance" will be applicable to the debt securities other than as described below under "Satisfaction and Discharge; Defeasance"; - if the debt securities are to be issued in the form of one or more global security and, if so, the identity of the depositary or depositaries of such global debt security or global debt securities; and 4 <Page> - any other specific terms of the debt securities that are not inconsistent with each Indenture. (Section 3.01) We may issue debt securities at a discount below their stated principal amount, bearing no interest or interest at a rate that, at the time of issuance, is below market rates. If we issue these kinds of debt securities, we will provide you with additional information in a prospectus supplement. FORM, DENOMINATION AND EXCHANGE We may issue the debt securities in registered form, without coupons, in increments of $1,000 or multiples thereof, unless the prospectus supplement states otherwise. Alternatively, we may issue the debt securities in the form of one or more global certificates. No service charge will be made for any transfer or exchange of the securities, but we may require payment of an amount sufficient to cover any tax or other governmental charge payable in connection with a transfer or exchange. (Section 3.02) NO EVENT OF RISK COVENANT Neither indenture contains any covenant or other provision that restricts Wells Fargo Financial from incurring, assuming or becoming liable for any type of debt or other obligations, from creating liens on its property, from paying dividends or making distributions on its capital stock or purchasing or redeeming its capital stock. Neither indenture requires Wells Fargo Financial to maintain any financial ratios or specified levels of net worth. In addition, neither indenture gives holders of the debt securities protection upon the occurrence of a change in control or in the event of a highly leveraged transaction involving Wells Fargo Financial. LIMITATION ON MERGER, CONSOLIDATION AND CERTAIN SALE OF ASSETS We may not merge into or consolidate with any other corporation, or convey or transfer our properties and assets substantially as an entirety to any person unless: - the successor is a U.S. corporation; - the successor assumes on the same terms and conditions all the obligations under the debt securities and each indenture; and - immediately after giving effect to the transaction, there is no default under each indenture. (Section 10.01) Upon any merger, consolidation, conveyance or transfer, the successor will succeed to, and will be substituted in lieu of Wells Fargo Financial. (Section 10.02). COMPUTATION OF INTEREST We will calculate the interest that is due on the debt securities based on a 360-day year of twelve 30 day months, unless the prospectus supplement states otherwise. (Section 3.11) PAYMENTS ON REGISTERED DEBT SECURITIES We will pay principal, interest and any premium on registered debt securities in the designated currency at the office of a designated paying agent. At our option, payment of interest on fully registered securities may also be made by check mailed to the person in whose names the securities are registered on the days specified in the indentures or any prospectus supplement. (Section 3.12) 5 <Page> PAYING AGENT Bank One Trust Company, National Association will be designated as Wells Fargo Financial's paying agent for the senior debt securities unless the prospectus supplement states otherwise. Harris Trust and Savings Bank will be designated as Wells Fargo Financial's paying agent for the subordinated debt securities unless the prospectus supplement states otherwise. (Section 8.14) If we authorize any other person to make payments on debt securities for us, we will identify them in the applicable prospectus supplement. GLOBAL SECURITIES We may issue debt securities of a series in whole or in part in the form of one or more global certificates that will be deposited with a depository that we will identify in a prospectus supplement. Unless and until it is exchanged in whole or in part for individual certificates evidencing securities in definitive form represented thereby, a global security may not be transferred except as a whole by the depository to a nominee of that depository or by a nominee of that depository to a depository or another nominee of that depository. (Section 3.01) The specific terms of the depositary arrangement for each series of debt securities will be described in the applicable prospectus supplement. RANKING The senior debt securities will be the unsecured obligations of Wells Fargo Financial and will rank equally among themselves and with all of Wells Fargo Financial's other unsecured and unsubordinated debt. The prospectus supplement will describe the specific terms and conditions upon which the subordinated debt securities will be subordinated to other indebtedness of Wells Fargo Financial. Such terms may include: - indebtedness ranking senior to the subordinated debt securities; - restrictions on payments to the holders of such subordinated debt securities while a default relating to such senior indebtedness is continuing; - restrictions on payments to the holders of such subordinated debt securities following an event of default; and - provisions requiring holders of senior debt securities to receive certain payments prior to holders of subordinated debt securities. (Section 15.01) SATISFACTION AND DISCHARGE At our request, each indenture will terminate as to the debt securities of any series (except for certain obligations to register the transfer or exchange of the debt securities) when either: - all the debt securities have been delivered to the trustee for cancellation; or - we have deposited with the trustee in trust, an amount sufficient to make all remaining payments on these debt securities. (Section 6.01) DEFEASANCE We may satisfy our obligations with respect to payments of principal of the debt securities, and premium, if any, and interest, if any, on the debt securities of any series by irrevocably depositing in trust with the trustee money or U.S. government obligations 6 <Page> sufficient to make such payments when due. If such deposit is sufficient, as verified by a written opinion of independent public accountants, to make all payments of: - interest, if any, on the debt securities of such series prior to and on their redemption or maturity, as the case may be; and - principal of the debt securities, and premium, if any, on the debt securities of such series when due upon redemption or at the designated maturity date, as the case may be then all of our obligations with respect to the debt securities of such series and the indentures which relate to the debt securities will be satisfied and discharged. To elect either option described above, we must deliver to the trustee an opinion of counsel to the effect that the deposit and related payment described above would not cause the holders of that series to recognize, income, gain or loss for U.S. federal income tax purposes and that the holders of that series will be subject to U.S. federal income tax in the same amounts, in the same manner and at the same times as would have been the case if that option had not been exercised. (Section 14.02) EVENTS OF DEFAULT An "event of default" regarding any series of debt securities is any one of the following events, subject to various grace periods: - failure to pay principal of, or any premium on, any debt security when due; - failure to deposit any sinking fund payments for any series of debt security when due; - failure to pay any interest when due and payable; - failure to perform any covenants or warranties in either indenture, which failure has continued for 60 days after written notice to Wells Fargo Financial by the trustee or by the holders of 50% in principal amount of the outstanding debt securities of that series; - certain events in bankruptcy, insolvency or reorganization of Wells Fargo Financial; - default regarding any other series of debt securities, which results in the acceleration of such other series of debt securities; and - any other events of default regarding that series of debt securities that is specified in the prospectus supplement. (Section 7.01) A default regarding a single series of debt securities will not necessarily constitute a default regarding any other series. A default under other debt of Wells Fargo Financial will not be a default under either indenture. If an event of default for any series of debt securities occurs and is continuing, either the trustee or the holders of 25% in principal amount of the outstanding debt securities of that series may declare the principal amount of all the debt securities of that series to be immediately due and payable by notice in writing to Wells Fargo Financial. If the debt securities of that series are original issue discount debt securities, the portion of the principal amount as is specified in that series may declare the principal amount of the debt securities of that series to be immediately declared payable by notice in writing to Wells Fargo Financial. If the holders of debt securities give notice of the declaration of acceleration to Wells Fargo Financial, then they must also give notice to the trustee. (Section 7.02) 7 <Page> The holders of a majority in principal amount of the outstanding debt securities may rescind a declaration of acceleration if: - Wells Fargo Financial has paid or deposited with the trustee a sum sufficient to pay principal, interest, including overdue interest and interest thereon, any premium and the fee and expenses of the trustee (Section 7.02); and - any other event of default, besides the failure to pay principal due because of the declaration of acceleration, has been cured or waived. (Section 7.13) We are required to file every year with the trustee an officers' certificate stating whether any default exists and specifying any default that exists. (Section 12.05) NOTICE OF DEFAULTS The trustee is required to give notice to holders of debt securities of a default, which remains uncured or has not been waived, that is known to the trustee within 90 days after the occurrence of the default. The trustee may withhold this notice, however, if it determines in good faith that the withholding of notice is in the interest of the holders of the debt securities. However, the trustee may not withhold notice in the case of a default in the payment of principal of and premium or interest on or a sinking fund installment on any of the debt securities. In addition, the trustee is only required to give notice of the failure by Wells Fargo Financial to perform any covenant until at least 30 days after the failure has become a default. The term "default" for this purpose means any event which is, or after notice or lapse of time or both would become, an event of default. (Section 8.02) RIGHTS OF THE TRUSTEE The holders of a majority in principal amount of outstanding debt securities of any series may direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or other power conferred on the trustee. The trustee may decline to follow that direction, however, if it either would involve the trustee in personal liability or would be unduly prejudicial to holders of the debt securities of that series that do not join in that direction. (Section 7.12) During a default, the trustee is required to exercise the standard of care that a prudent man would exercise or use under the circumstances in the conduct of his own affairs (Section 8.0) Otherwise, the trustee is not obligated, however, to exercise any of its rights or powers under each indenture at the request or direction of any of the holders of debt securities unless those holders have offered to the trustee reasonable security or indemnity. (Section 8.03) MODIFICATION AND WAIVER OF EACH INDENTURE The holders of a majority in principal amount of the outstanding debt securities of any series may waive any past default under the applicable indenture. The following defaults may not, however, be waived: - a default in the payment of the principal, or any premium, interest or additional amounts payable on a series of debt securities, or in the payment of any sinking fund installment with respect to that series, which has not been cured until that time; or - a default regarding a covenant or provision of either indenture which cannot be modified or amended without the consent of the holder of each outstanding debt security of the series affected. (Section 7.13) 8 <Page> MODIFICATION WITHOUT CONSENT OF THE HOLDERS Without the consent of the holders of debt securities, we and the trustee may modify each indenture for any of the following purposes: - to name a successor entity to Wells Fargo Financial; - to add to our covenants for the benefit of the holders of all or any series of debt securities; - to establish the form or terms of securities of any series of debt securities and any related coupons; - to cure any ambiguity or inconsistency in the applicable indenture; - to modify, eliminate and add to the provisions of either indenture to enable it to qualify under the Trust Indenture Act of 1939; or - to provide for the acceptance or appointment of a successor trustee. (Section 11.01) MODIFICATION REQUIRING CONSENT OF THE HOLDERS Each indenture provides that modifications and amendments may be made by us and the trustee with the consent of the holders of at least a majority in principal amount of the outstanding debt securities of each series affected by the amendment or modification of each indenture. However, no modification or amendment may, without the consent of each holder affected: - change the stated maturity of the principal of, or any installment of interest on, any debt security; - reduce the principal amount, the rate of interest, or any additional amounts in respect of any debt security or reduce the amount of any premium payable upon the redemption of any debt security; - reduce the principal amount of original issued discount debt securities that would be due and payable upon acceleration of their maturity; - change the place of payment, the currency in which, any debt security or any premium or interest thereon is payable; - reduce the amount of, or postpone the date fixed for, any payment under the sinking fund for any debt security; - impair the right to institute suit for the enforcement of any payment on or after the stated maturity date of the security or, in the case of redemption, on or after the redemption date; - reduce the percentage of securities required to consent to any modification, amendment or waiver under either indenture; - modify, except under limited circumstances, any provisions of the applicable indenture relating to modification and amendment of the indenture or waiver of compliance with conditions and defaults thereunder; or - in the case of the subordinated indenture, alter the provisions regarding the subordination of the subordinated debt securities in any way that would be adverse to the holders of such debt securities. (Section 11.02) MUTILATED, DESTROYED, STOLEN OR LOST SECURITIES We will replace any mutilated debt security at the expense of the holder and on surrender of that mutilated debt security to the trustee. We will also replace debt securities 9 <Page> that are destroyed, lost or stolen at the expense of the holder and on delivery to the security registrar of evidence of that destruction, loss or theft which is satisfactory to us and the trustee. Before we issue a replacement debt security, we and the trustee may require an indemnity from the party seeking the replacement security. (Section 3.06) NOTICES Except as otherwise provided in each Indenture, notices to holders of debt securities will be given by mail to the addresses of those holders as they appear in the security register. (Section 1.06) GOVERNING LAW The laws of the State of New York govern each Indenture and will govern the debt securities, including any matters of interpretation under them. (Section 1.13) INFORMATION CONCERNING THE TRUSTEE We may from time to time engage in general financing and banking transactions with Bank One Trust Company, National Association or with its affiliates or with Harris Trust and Savings Bank or with its affiliates. PLAN OF DISTRIBUTION We may sell the debt securities in one or more of the following ways: - through underwriters or dealers; - directly to one or more purchasers; - through agents; or - in a combination of any of the above transactions. The prospectus supplement for each series of debt securities will describe that offering, including: - the name or names of any underwriters; - the purchase price and the proceeds we will receive from such sale; - any underwriting discounts and other items constituting underwriters' compensation; - any discounts or concessions allowed or reallowed or paid to dealers; and - any securities exchanges on which the debt securities of such series may be listed. If underwriters are used in the sale, the debt securities will be acquired by the underwriters for their own account and may be resold by them from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. The obligations of the underwriters to purchase securities will be subject to certain conditions precedent and the underwriters will be obligated to purchase all the securities of a series if any are purchased. Any initial public offering price and any discounts or concessions allowed or reallowed or paid to dealers may be changed from time to time. Debt securities may be sold directly by us or through agents designated by us from time to time. We will name any agent involved in the offer or sale of the debt securities and will list commissions payable by us to these agents in the prospectus supplement. These agents will be acting on a best efforts basis to solicit purchases for the period of its appointment, unless we state otherwise in the prospectus supplement. 10 <Page> We will not allow or pay to any National Association of Securities Dealers, Inc. member, nor will we permit to be reallowed or paid to any independent broker-dealer, a commission or discount in excess of eight percent (8%) in connection with any sale of the debt securities. We may sell debt securities directly to purchasers. In this case, we will not engage underwriters or agents in the offer and sale of debt securities. INDEMNIFICATION Underwriters, dealers or agents who participate in the distribution of debt securities may be entitled to indemnification by us against certain liabilities, including liabilities under the Securities Act of 1933, or to contribution with respect to payments which these underwriters, dealers or agents may be required to make. NO ASSURANCE OF LIQUIDITY Each series of debt securities will be a new issue of securities with no established trading market. Any underwriters that purchase debt securities from us may make a market in these debt securities. The underwriters will not be obligated, however, to make such a market and may discontinue market-making at any time without notice to holders of the debt securities. We cannot assure you that there will be liquidity in the trading market for any debt securities of any series. LEGAL OPINIONS The legality of the debt securities will be passed upon for us by Steve R. Wagner, Esq., who is our Senior Assistant General Counsel, and for the underwriters, dealers or agents by Orrick, Herrington & Sutcliffe LLP, New York, New York. EXPERTS The consolidated financial statements of Wells Fargo Financial, Inc. and subsidiary companies as of and for the year ended December 31, 1999, have been incorporated by reference herein and in the registration statement in reliance upon the report of KPMG LLP, independent auditors, incorporated by reference herein, and upon authority of that firm as experts in accounting and auditing. The consolidated financial statements of Norwest Financial, Inc. and subsidiary companies as of December 31, 1998 and for each of the two years in the period ended December 31, 1998, have been incorporated by reference herein and in the registration statement in reliance upon the report of Deloitte & Touche LLP, independent auditors, incorporated by reference herein, and upon authority of that firm as experts in accounting and auditing. 11