<Page>
                                                      Pursuant to Rule 424(b)(5)
                                                      Registration No. 333-54934

PROSPECTUS SUPPLEMENT
(To Prospectus dated February 13, 2001)

                                  $500,000,000
                          Wells Fargo Financial, Inc.
                        4.875% Senior Notes 2007 Series
                               Due June 12, 2007
                               ------------------

    These notes bear interest at the rate of 4.875% per year. Interest on the
notes is payable on December 12 and June 12 of each year, beginning
December 12, 2002. The notes will mature on June 12, 2007 and are not redeemable
before that date unless certain events occur involving U.S. taxation as
described under "Description of the Notes--Redemption Upon Tax Event."

    We have applied to list the notes on the Luxembourg Stock Exchange in
accordance with the rules of the Luxembourg Stock Exchange, although no
assurances can be given that the notes will be approved for listing.

    The notes are unsecured and rank equally with all of our other existing and
future senior unsecured and unsubordinated debt. The notes will be issued only
in registered form in denominations of $1,000 and integral multiples of $1,000.

<Table>
<Caption>
                                                                                   Proceeds, Before
                                                     Price to     Underwriting       Expenses, to
                                                   Investors(1)     Discount     Wells Fargo Financial
                                                   ------------   ------------   ---------------------
                                                                        
Per Note.........................................        99.388%        0.350%             99.038%

Total............................................  $496,940,000    $1,750,000        $495,190,000
</Table>

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

(1) Plus accrued interest from June 12, 2002, if settlement occurs after that
    date.
                            ------------------------

    None of the Securities and Exchange Commission, any state securities
commission nor the Luxembourg Stock Exchange or any foreign governmental agency
has approved or disapproved of the notes or determined if this prospectus
supplement and the accompanying prospectus are truthful and complete. Any
representation to the contrary is a criminal offense.
                            ------------------------

    The notes will be ready for delivery in book-entry form only through The
Depository Trust Company on or about June 12, 2002. The notes have been approved
for clearance through the Clearstream and Euroclear systems.

                          JOINT BOOK-RUNNING MANAGERS

           BNP PARIBAS                           Salomon Smith Barney
                               ------------------

                                  CO-MANAGERS

Banc of America Securities LLC

       Banc One Capital Markets, Inc.

                   Bear, Stearns & Co. Inc.

                             Deutsche Bank Securities

                                       JPMorgan

                                                Wells Fargo Brokerage Services,
                                                LLC
                            ------------------------

            The date of this prospectus supplement is June 5, 2002.
<Page>
    You should rely only on the information contained in or incorporated by
reference in this prospectus supplement and the accompanying prospectus. Wells
Fargo Financial has not authorized anyone to provide you with different
information. Wells Fargo Financial is not making an offer of these securities in
any state or other jurisdiction where the offer is not permitted. You should not
assume that the information provided by this prospectus supplement or the
accompanying prospectus is accurate as of any date other than the date on the
front of this prospectus supplement.

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

                               TABLE OF CONTENTS
                             PROSPECTUS SUPPLEMENT

<Table>
<Caption>
                                                                PAGE
                                                              --------
                                                           
Where You Can Find More Information About Wells Fargo
  Financial.................................................     S-3
Incorporation of Information We File with the SEC...........     S-3
Wells Fargo Financial.......................................     S-4
Ratios of Earnings to Fixed Charges.........................     S-4
Capitalization..............................................     S-5
Selected Financial Data.....................................     S-6
Description of the Notes....................................     S-7
Material U.S. Federal Income Tax Consequences...............    S-13
Underwriting................................................    S-17
Experts.....................................................    S-19
Listing and General Information.............................    S-19

                              PROSPECTUS

Where You Can Find More Information About Wells Fargo
  Financial.................................................       1
Incorporation of Information We File with the SEC...........       1
Wells Fargo Financial, Inc..................................       1
Use of Proceeds.............................................       2
Ratios of Earnings to Fixed Charges.........................       2
Description of the Debt Securities..........................       2
Plan of Distribution........................................      10
Legal Opinions..............................................      11
Experts.....................................................      11
</Table>

    We are offering the notes globally for sale in those jurisdictions in the
United States, Canada, Europe, Asia and elsewhere where it is lawful for us to
make offers of the notes.

    This prospectus supplement and the accompanying prospectus include
particulars given in compliance with the rules governing the listing of
securities on the Luxembourg Stock Exchange for the purpose of giving
information with regard to us. We accept responsibility for the information
contained in this prospectus supplement and the accompanying prospectus and
confirm, having made all reasonable inquiries, that to the best of our knowledge
and belief there are no other facts the omission of which would make any
statement in this prospectus supplement or in the prospectus misleading in any
material respect.

    The Luxembourg Stock Exchange takes no responsibility for the contents of
this document, makes no representation as to its accuracy or completeness and
expressly disclaims any liability whatsoever for any loss however arising from
or in reliance upon the whole or any part of the contents of this prospectus
supplement and the accompanying prospectus.

                                      S-2
<Page>
    References to "Wells Fargo Financial", "we", "us" and "our" in this
prospectus supplement and in the accompanying prospectus are references to Wells
Fargo Financial, Inc. References herein to "$" and "dollars" are to the currency
of the United States.

    In connection with this offering, BNP Paribas Securities Corp., on behalf of
the underwriters, may over-allot or effect transactions which stabilize or
maintain the market price of the notes at a level which might not otherwise
prevail. Any stabilizing, if commenced, may discontinue at any time. These
transactions are to be carried out in accordance with applicable laws and
regulations.

                   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 room in Washington, D.C. Please call the
Securities and Exchange Commission at 1-800-SEC-0330 for further information on
the public reference room. 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 supplement.
Information that we file later with the Securities and Exchange Commission will
automatically update and supercede information contained in this prospectus
supplement and the accompanying prospectus. We incorporate by reference the
documents listed below and any past or future filings made with the Securities
and Exchange 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, 2001; and

    -- quarterly report on Form 10-Q for the quarter ended March 31, 2002.

    You may request a free copy of any of these filings (not including exhibits
to the information that is incorporated by reference unless those exhibits are
specifically incorporated by reference into the information that this prospectus
supplement incorporates by reference) 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

    In addition, copies of any of these filings, as well as our annual report on
Form 10-K for the years ended December 31, 1999 and December 31, 2000, may be
obtained free of charge from Banque Generale du Luxembourg S.A., our listing
agent, paying agent and transfer agent for the notes in Luxembourg at 50, Avenue
J.F. Kennedy, L-2951, Luxembourg.

    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.

                                      S-3
<Page>
                             WELLS FARGO FINANCIAL

    Wells Fargo Financial is an Iowa corporation and was incorporated on
August 19, 1982. Wells Fargo Financial is a leading diversified consumer finance
company which primarily makes loans to consumers and purchases sales finance
contracts through offices in the United States and Canada. Wells Fargo Financial
has subsidiaries which, among other activities, provide credit life, credit
disability, credit property and involuntary unemployment insurance, issue credit
cards, purchase sales finance contracts directly from automobile dealers, make
loans secured by automobiles and provide lease financing, rediscounting and
accounts receivable financing. Wells Fargo Financial is an indirect wholly-
owned subsidiary of Wells Fargo & Company, a $308 billion diversified financial
services organization.

                      RATIOS OF EARNINGS TO FIXED CHARGES

    Our ratio of earnings to fixed charges is set forth below for the periods
indicated:

<Table>
<Caption>
     YEAR ENDED DECEMBER 31,
- ---------------------------------  THREE MONTHS ENDED
1997   1998   1999   2000   2001     MARCH 31, 2002
- -----  -----  -----  -----  -----  ------------------
                    
2.00x  1.72x  1.78x  1.58x  1.61x        1.85x
</Table>

    For the purpose of calculating the ratios of earnings to fixed charges we
have divided net income (earnings) plus fixed charges and income taxes by fixed
charges. Fixed charges consist of interest and debt expense plus the portion of
rentals which we deem to be representative of the interest factor.

                                      S-4
<Page>
                                 CAPITALIZATION

    The following table presents our consolidated capitalization at March 31,
2002.

<Table>
<Caption>
                                                              MARCH 31, 2002
                                                              --------------
                                                              (IN THOUSANDS)
                                                           
Short-term debt
  Commercial paper..........................................    $ 4,022,244
  Indebtedness to affiliates due within one year............         86,600
  Other short-term indebtedness.............................        113,229
                                                                -----------
      Total short-term debt.................................      4,222,073
                                                                -----------
Long-term debt
  Senior debt...............................................      8,068,212
  Indebtedness to affiliate.................................      1,200,000
                                                                -----------
      Total long-term debt..................................      9,268,212
                                                                -----------
Stockholder's equity
  Common stock (without par value; 1,000 shares authorized;
    1,000 shares issued and outstanding)....................          3,855
  Additional paid-in capital................................        442,302
  Retained earnings.........................................      1,711,722
  Accumulated other comprehensive loss, net of income
    taxes...................................................         (7,087)
                                                                -----------
      Total stockholder's equity............................      2,150,792
                                                                -----------
      Total debt and stockholder's equity...................    $15,641,077
                                                                ===========
</Table>

    The above table does not give effect to our issuance of $598,199,000 in
aggregate principal amount of long-term senior debt, and our repayment of
$201,982,000 in aggregate principal amount of long-term senior debt, subsequent
to March 31, 2002. Since March 31, 2002, we issued $500,000,000 of 6.125% Senior
Notes due April 18, 2012, we repaid $51,154,000 in long-term senior debt and
paid $101,667,000 in aggregate principal amount of indebtedness that matured. In
addition, one of our Canadian subsidiaries issued $98,199,000 of 5.5% Senior
Notes due June 15, 2007 and repaid $49,161,000 in aggregate principal amount of
indebtedness that matured. Except as noted above, there has been no material
change in our consolidated capitalization since March 31, 2002.

    All of our outstanding common stock is fully paid and nonassessable.

                                      S-5
<Page>
                            SELECTED FINANCIAL DATA

    The following table presents selected financial data of Wells Fargo
Financial and its subsidiaries for the periods specified. We have derived this
data from, and you should read this data in conjunction with, our audited
consolidated financial statements filed as part of our annual reports on
Form 10-K for our fiscal years ended December 31, 1997, 1998, 1999, 2000 and
2001 and our unaudited consolidated financial statements filed as part of our
quarterly reports on Form 10-Q for the quarters ended March 31, 2001 and 2002,
respectively.

<Table>
<Caption>
                                                                                                           THREE MONTHS ENDED
                                                        YEARS ENDED DECEMBER 31,                                MARCH 31,
                                   ------------------------------------------------------------------   -------------------------
                                      1997         1998          1999          2000          2001          2001          2002
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
                                                             (IN THOUSANDS)                                    (UNAUDITED)
                                                                                                 
INCOME STATEMENT DATA:
Income:
  Finance charges and interest...  $1,282,576   $ 1,498,692   $ 1,637,441   $ 1,896,075   $ 2,221,346   $   542,833   $   562,129
  Insurance premiums and
    commissions..................     232,890       280,207       305,320       114,996       122,351        30,340        29,185
  Other income...................     213,330       226,866       241,503       222,413       278,796        64,253        65,464
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
Total income.....................   1,728,796     2,005,765     2,184,264     2,233,484     2,622,493       637,426       656,778
Expenses:
  Operating expenses.............     551,829       678,197       781,366       808,583       943,350       225,239       238,639
  Interest and debt expense......     401,736       485,784       520,063       639,444       685,014       189,764       142,600
  Provision for credit losses....     235,877       304,274       272,136       358,308       526,136       108,435       140,062
  Insurance losses and loss
    expenses.....................     125,822       177,238       196,148        47,261        44,303        11,264        11,410
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
Total Expenses...................   1,315,264     1,645,493     1,769,713     1,853,596     2,198,803       534,702       532,711
Income before income taxes.......     413,532       360,272       414,551       379,888       423,690       102,724       124,067
Income taxes.....................     144,082       121,668       149,190       138,834       158,873        37,922        45,160
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
Net Income.......................  $  269,450   $   238,604   $   265,361   $   241,054   $   264,817   $    64,802   $    78,907
                                   ==========   ===========   ===========   ===========   ===========   ===========   ===========
</Table>

<Table>
<Caption>
                                                           AS OF DECEMBER 31,                                AS OF MARCH 31,
                                   ------------------------------------------------------------------   -------------------------
                                      1997         1998          1999          2000          2001          2001          2002
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
                                                             (IN THOUSANDS)                                    (UNAUDITED)
                                                                                                 
BALANCE SHEET DATA:
Cash and cash equivalents........  $   94,600   $   139,184   $   178,970   $   205,036   $   260,038   $   232,068   $   220,937
Securities available-for-sale....   1,063,600     1,203,500     1,224,666     1,215,135     1,377,148     1,283,545     1,421,877
Total finance receivables........   7,114,121     8,270,227     9,072,306    11,417,862    13,433,569    12,243,490    13,965,944
Less allowance for credit
  losses.........................     297,800       350,984       367,712       462,555       521,948       503,074       533,900
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
Finance receivables--net.........   6,816,321     7,919,243     8,704,594    10,955,307    12,911,621    11,740,416    13,432,044
Notes and other
  receivables--affiliates........     646,832       499,123       487,822       505,386       636,588       662,851       604,018
Property and equipment (at cost,
  less accumulated
  depreciation)..................     102,537       187,695        69,374        63,651        94,017        64,883       104,782
Deferred income taxes............      64,420        60,717       130,496       111,262        62,290       104,104        97,094
Other assets.....................     533,614       506,745       487,491       520,971       567,560       600,769       553,113
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
Total assets.....................  $9,321,924   $10,516,207   $11,283,413   $13,576,748   $15,909,262   $14,688,636   $16,433,865
                                   ==========   ===========   ===========   ===========   ===========   ===========   ===========
Loans payable--short-term:
  Commercial paper...............  $1,664,796   $ 2,662,321   $ 2,437,676   $ 2,973,508   $ 4,067,707   $ 3,271,645   $ 4,022,244
  Affiliates.....................     392,165       194,453       432,199        99,379        64,600       320,189        86,600
  Other..........................     170,000       237,467       256,916       709,988        93,742       153,894       113,229
Unearned insurance premiums and
  commissions....................     143,478       132,793       140,547       139,476       133,465       140,275       128,720
Insurance claims and policy
  reserves.......................      30,566        29,750        34,124        34,978        34,635        35,158        33,723
Accrued interest payable.........      93,344        96,482       102,695       121,007       131,752       120,662       124,170
Other payables to affiliates.....      13,815        44,173         3,297        48,761            --        36,701            --
Other liabilities................     228,557       280,737       374,558       370,363       426,876       463,970       506,175
Long-term debt:
  Senior.........................   5,221,413     5,272,818     5,913,837     6,968,803     8,145,636     7,594,704     8,068,212
  Affiliate......................          --            --            --       255,870       700,000       500,000     1,200,000
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
Total liabilities................   7,958,134     8,950,994     9,695,849    11,722,133    13,798,413    12,637,198    14,283,073
Stockholder's equity.............   1,363,790     1,565,213     1,587,564     1,854,615     2,110,849     2,051,438     2,150,792
                                   ----------   -----------   -----------   -----------   -----------   -----------   -----------
Total liabilities and
  stockholder's equity...........  $9,321,924   $10,516,207   $11,283,413   $13,576,748   $15,909,262   $14,688,636   $16,433,865
                                   ==========   ===========   ===========   ===========   ===========   ===========   ===========
</Table>

                                      S-6
<Page>
                            DESCRIPTION OF THE NOTES

    The following description of the particular terms of the notes offered by
this prospectus supplement and the accompanying prospectus supplements the
description of the general terms and provisions of the debt securities set forth
in the accompanying prospectus.

GENERAL

    The notes will be issued under an indenture, dated as of November 1, 1991,
between us and Bank One Trust Company, National Association (formerly known as
The First National Bank of Chicago), as trustee.

    The notes initially will be limited to $500,000,000 in aggregate principal
amount and will mature on June 12, 2007. The notes will bear interest from
June 12, 2002 at 4.875% per year. We will pay interest semi-annually on each
December 12 and June 12, beginning on December 12, 2002, to the persons in whose
names the notes are registered at the close of business on the December 1 or
June 1 record date prior to the payment date. If the interest payment date is
not a business day at the relevant place of payment, payment of interest will be
made on the next business day at such place of payment. Interest will not accrue
as a result of any delayed payment. Business day means each Monday, Tuesday,
Wednesday, Thursday and Friday that is not a day on which banking institutions
are generally authorized or obligated by law to close in the Borough of
Manhattan, The City of New York and, for any place of payment outside of the
Borough of Manhattan, The City of New York, in the place of payment. Unless
previously redeemed or purchased and cancelled, the notes will mature on
June 12, 2007, and we will pay 100% of their principal amount, together with
accrued and unpaid interest on the notes on that date.

FURTHER ISSUES

    We may from time to time, without notice to, or the consent of, the then
existing registered holders of the notes, create and issue further notes equal
in rank and having the same maturity, payment terms, redemption features and
other terms, except for the payment of interest accruing prior to the issue date
of the further notes and for the first payment of interest following the issue
date of the further notes, as the notes offered by this prospectus supplement.
These further notes may be consolidated and form a single series with the notes
offered by this prospectus supplement.

PAYMENT OF ADDITIONAL AMOUNTS

    We will pay to the holder of any note who is a non-U.S. beneficial owner, as
defined below, additional amounts as may be necessary so that every net payment
of the principal of, interest on and any other amounts payable under that note,
after deduction or withholding for or on account of any present or future tax,
assessment or other governmental charge imposed upon that holder by the United
States or any taxing authority of or in the United States, will not be less than
the amount provided in that note to be then due and payable. We will not be
required, however, to make any payment of additional amounts for or on account
of:

        -  any tax, assessment or other governmental charge that would not have
    been imposed but for the existence of any present or former connection
    between that holder (or between a fiduciary, settlor, beneficiary of, member
    or shareholder of, or possessor of a power over, that holder, if that holder
    is an estate, trust, limited liability company, partnership or corporation)
    and the United States including, without limitation, that holder, or that
    fiduciary, settlor, beneficiary, member, shareholder or possessor, being or
    having been a citizen or resident or treated as a resident of the United
    States or being or having been engaged in trade or business in, or present
    in, the United States;

                                      S-7
<Page>
        -  any tax, assessment or other governmental charge to the extent that
    tax, assessment or governmental charge would not have been imposed but for
    the presentation of a note for payment on a date more than 30 days after the
    later of the date on which that payment becomes due and payable or the date
    on which payment is duly provided for and notice is given to holders;

        -  any estate, inheritance, gift, sales, transfer, excise, personal
    property or similar tax, assessment or other governmental charge;

        -  any tax, assessment or other governmental charge imposed by reason of
    that holder's past or present status as a passive foreign investment
    company, a controlled foreign corporation, a personal holding company or
    foreign personal holding company (in each case, with respect to the United
    States) or as a corporation which accumulates earnings to avoid U.S. federal
    income tax;

        -  any tax, assessment or other governmental charge which is payable
    otherwise than by withholding from payment of the principal of, interest on
    or any other amounts payable under that note;

        -  any tax, assessment or other governmental charge required to be
    withheld by any paying agent from any payment of the principal of, interest
    on or any other amounts payable under any note if that payment can be made
    without withholding by any other paying agent;

        -  any tax, assessment or other governmental charge which would not have
    been imposed but for the failure of the holder to comply with certification,
    information, documentation or other reporting requirements concerning the
    nationality, residence, identity or connections with the United States of
    the holder or beneficial owner of that note, if that compliance is required
    by statute or by regulation of the U.S. Treasury Department as a
    precondition to a partial or complete relief or exemption from such tax,
    assessment or other governmental charge (including, but not limited to, the
    failure to provide IRS Forms W-8BEN, W-8ECI or any subsequent versions
    thereof or successors of those forms);

        -  any tax, assessment or other governmental charge imposed by reason of
    the holder or beneficial owner owning or having owned, actually or
    constructively, 10% or more of the total combined voting power of all
    classes of our stock or being a controlled foreign corporation with respect
    to the United States with respect to which we are a "related person"; or

        -  any combination of the above items;

nor will we pay any additional amounts to any holder who is a fiduciary or
partnership other than the sole beneficial owner of that note to the extent that
a beneficiary or settlor with respect to that fiduciary, or a member of that
partnership or a beneficial owner of that partnership, would not have been
entitled to the payment of those additional amounts had that beneficiary,
settlor, member or beneficial owner been the holder of that note.

REDEMPTION UPON TAX EVENT

    The notes may be redeemed at our option in whole, but not in part, on not
more than 60 days' and not less than 30 days' notice, at a redemption price
equal to 100% of their principal amount, plus accrued and unpaid interest on the
notes, if we determine that as a result of any change in or amendment to the
laws, treaties, regulations or rulings of the United States or any political
subdivision or taxing authority of the United States, or any proposed change in
those laws, treaties, regulations or rulings, or any change in the official
application, enforcement or interpretation of those laws, treaties, regulations
or rulings, including a holding by a court of competent jurisdiction in the
United States, or any other action, other than an action predicated on law
generally known on or before June 5, 2002, taken by any taxing authority or a
court of competent jurisdiction in the United States, or the official proposal
of any action, whether or not the action or proposal was taken or made with
respect to our

                                      S-8
<Page>
company, we have or will become obligated on the next interest payment date to
pay additional amounts as described on any note or there is a substantial
likelihood that we will be required to pay those additional amounts on the next
interest payment date. Prior to the publication of any notice of redemption, we
will deliver to the trustee an officers' certificate stating that we are
entitled to effect a redemption and setting forth a statement of facts showing
that the conditions precedent to our right to so redeem have occurred and an
opinion of counsel to that effect based on that statement of facts. If we redeem
the notes upon a tax event, we will publish a notice of that redemption in
Luxembourg in the LUXEMBURGER WORT at the time notice is given to the holders of
the notes as described above and notify the Luxembourg Stock Exchange.

BOOK-ENTRY SYSTEM

    Portions of the following description concerning The Depository Trust
Company, Clearstream and Euroclear are based from sources that we and the
underwriters deem reliable. No representation is made herein by us or the
underwriters as to the accuracy or completeness of such information.

    Upon issuance, all notes will be represented by one or more fully registered
global notes. Each global note will be deposited with, or on behalf of, The
Depository Trust Company and registered in the name of Cede & Co. as DTC's
nominee. Investors may hold interests in the global notes through either DTC (in
the United States) or Clearstream Banking Luxembourg S.A. or Euroclear Bank
S.A./N.V. as operator of the Euroclear System (in Europe) if they are
participants in those systems, or indirectly through organizations that are
participants in those systems.

    Clearstream and Euroclear will hold interests in the global notes on behalf
of the Clearstream customers and Euroclear participants, respectively, through
customers' securities accounts in their respective names on the books of their
respective depositaries. The depositaries, in turn, will hold such interests in
customers' securities accounts in the depositaries' names on the books of DTC.

    Transfers between DTC participants will occur in accordance with DTC rules.
Transfers between Clearstream customers and Euroclear participants will occur in
the ordinary way in accordance with their applicable rules and operating
procedures.

    Cross-market transfers between persons holding directly or indirectly
through DTC, on the one hand, and directly or indirectly through Clearstream
customers or Euroclear participants, on the other hand, will be effected in DTC
in accordance with DTC rules on behalf of the relevant European international
clearing system by its depositary; however, those cross-market transactions will
require delivery of instructions to the relevant European international clearing
system by the counterparty in the system in accordance with its rules and
procedures and within its established deadlines (European time). The relevant
European international clearing system will, if the transaction meets its
settlement requirements, deliver instructions to its depositary to take action
to effect final settlement on its behalf by delivering or receiving securities
in DTC, and making or receiving payment in accordance with normal procedures for
same-day funds settlement applicable to DTC. Clearstream customers and Euroclear
participants may not deliver instructions directly to the depositaries.

    Because of time-zone differences, credits of interests in the global notes
received in Clearstream or Euroclear as a result of a transaction with a DTC
participant will be made during subsequent securities settlement processing,
dated the business day following the DTC settlement date, and those credits or
any transactions in those securities settled during that processing will be
reported to the relevant Clearstream customer or Euroclear participant on that
business day. Cash received in Clearstream or Euroclear as a result of sales of
interests in the global notes by or through a Clearstream customer or a
Euroclear participant to a DTC participant will be received with value on the
DTC settlement date but will be available in the relevant Clearstream or
Euroclear cash account only as of the business day following settlement in DTC.

                                      S-9
<Page>
    We expect that pursuant to procedures established by DTC, upon the deposit
of the global notes, DTC will credit, on its internal system, the principal
amount of the notes represented by those global notes to the respective accounts
of its participants and ownership of the notes represented by the global notes
will be shown on, and the transfer of that ownership will be effected only
through, records maintained by DTC or its nominee (with respect to DTC
participants) or by DTC participants (with respect to persons other than DTC
participants).

    Payments of the principal of and interest on the notes will be made to DTC
or its nominee, as the case may be, as the registered owner of the notes. None
of us, the trustee or the paying agent will have any responsibility or liability
for any aspect of the records relating to or payments made on account of
beneficial ownership interests in the global notes or for maintaining,
supervising or reviewing any records relating to that beneficial ownership
interest.

    We expect that DTC or its nominee, upon receipt of any payment of principal
of or interest on the notes, will credit its participants' accounts with payment
on the payment date in amounts proportionate to their respective beneficial
interests in the principal amount of the global notes as shown on the records of
DTC or its nominee, unless DTC has reason to believe it will not receive payment
on that payment date. Wells Fargo Financial also expects that payments by DTC
participants to holders of notes represented by the global notes held through
those participants will be governed by standing instructions and customary
practice, as is now the case with securities held for the accounts of customers
registered in "street name." Those payments will be the responsibility of those
DTC participants, not the responsibility of DTC, the trustee or us.

    As long as DTC or its nominee is the registered holder of a global note, DTC
or its nominee, as the case may be, will be considered the sole owner and holder
of the notes represented by that global note for all purposes under the
indenture. Except in the limited circumstances described below, the beneficial
owners of the notes will not be entitled to have the notes represented by the
global notes registered in their names, will not receive or be entitled to
receive physical delivery of the notes in definitive form and will not be
considered the owners or holders of the notes under the indenture, including for
purposes of receiving any reports delivered by us or the trustee pursuant to the
indenture. Accordingly, each beneficial owner of the notes must rely on the
procedures of DTC and, if that beneficial owner is not a DTC participant, on the
procedures of the DTC participant through which that beneficial owner owns its
interest in a global note to exercise any rights of a holder under the
indenture. The beneficial owner will only be able to exercise the rights of a
holder under the indenture indirectly through the DTC participants who, in turn,
will exercise their rights as holders under the indenture through DTC.

    The laws of some states require that certain persons take physical delivery
in definitive form of securities that they own. Consequently, the ability to
transfer notes to those persons may be limited to that extent. Because DTC can
only act on behalf of its participants, who in turn act on behalf of indirect
participants and certain banks, the ability of a beneficial owner to pledge its
notes to persons or entities that do not participate in the DTC system, or
otherwise take actions with respect of the notes, may be affected by the lack of
a physical certificate representing the notes.

    If DTC discontinues providing its services as securities depositary with
respect to the notes at any time, and a successor securities depositary is not
obtained, we decide to discontinue use of the system of book-entry transfers
through DTC (or a successor securities depository or an event of default (as
defined in the prospectus)) has occurred and is continuing with respect to the
notes, definitive notes will be printed and distributed.

    Although DTC, Euroclear and Clearstream have agreed to the foregoing
procedures to facilitate transfers of interests in the global notes among
participants in DTC and Euroclear and customers of Clearstream, they are under
no obligation to perform or continue to perform such procedures, and those
procedures may be discontinued at any time. Neither us nor the trustee will have
any

                                      S-10
<Page>
responsibility for the performance by DTC, Euroclear or Clearstream or their
respective participants or indirect participants or customers of their
respective obligations under the rules and procedures governing their
operations.

    DTC is a limited-purpose trust company organized under the laws of the State
of New York, a member of the Federal Reserve System, a "clearing corporation"
within the meaning of the New York Uniform Commercial Code, and a "clearing
agency" registered pursuant to the provisions of Section 17A of the Securities
Exchange Act of 1934, as amended. DTC was created to hold securities for its
participants and facilitate the clearance and settlement of securities
transactions between its participants through electronic book-entry changes in
accounts of its participants, thereby eliminating the need for physical movement
of certificates. Participants include securities brokers and dealers (who may
include the underwriters of any series), banks, trust companies and clearing
corporations and may include certain other organizations. Indirect access to the
DTC system also is available to others such as banks, brokers, dealers and trust
companies that clear through or maintain a custodial relationship with a
participant, either directly or indirectly. The DTC rules applicable to its
participants are on file with the SEC. Additional information about DTC can be
found at www.dtcc.com. Information on DTC's website is not part of this
prospectus supplement.

    Clearstream is incorporated under the laws of Luxembourg. Clearstream holds
securities for its customers and facilitates the clearance and settlement of
securities transactions between Clearstream customers through electronic
book-entry changes in accounts of Clearstream customers, thereby eliminating the
need for physical movement of certificates. Transactions may be settled in
Clearstream in any of 36 currencies, including United States dollars.
Clearstream provides to its Clearstream customers, among other things, services
for safekeeping, administration, clearance and settlement of internationally
traded securities and securities lending and borrowing. Clearstream also deals
with domestic securities markets in over 30 countries through established
depositary and custodial relationships. Clearstream is registered as a bank in
Luxembourg, and as such is subject to regulation by the COMMISSION DE
SURVEILLANCE DU SECTEUR FINANCIER, which supervises Luxembourg banks.
Clearstream's customers are world-wide financial institutions including
underwriters, securities brokers and dealers, banks, trust companies, clearing
corporations and certain other organizations. Clearstream's U.S. customers are
limited to securities brokers and dealers and banks. Currently, Clearstream has
approximately 2,000 customers located in over 80 countries, including all major
European countries, Canada and the United States. Indirect access to Clearstream
is also available to other institutions that clear through or maintain a
custodial relationship with an account holder of Clearstream. Clearstream has
established an electronic bridge with Euroclear Bank S.A./N.V. as the operator
of the Euroclear System in Brussels to facilitate settlement of trades between
Clearstream and Euroclear.

    Euroclear was created in 1968 to hold securities for participants of the
Euroclear System and to clear and settle transactions between Euroclear
participants through simultaneous electronic book-entry delivery against
payment, thereby eliminating the need for physical movement of certificates and
any risk from lack of simultaneous transfers of securities and cash.
Transactions may now be settled in any of 40 currencies, including United States
dollars. The Euroclear System includes various other services, including
securities lending and borrowing, and interfaces with domestic markets in
several countries generally similar to the arrangements for cross-market
transfers with DTC described above.

    The Euroclear System is operated by Euroclear Bank S.A./N.V. as the
Euroclear operator. All operations are conducted by the Euroclear operator, and
all Euroclear securities clearance accounts and Euroclear cash accounts are
accounts with the Euroclear operator. The Euroclear operator establishes policy
for the Euroclear Systems on behalf of Euroclear participants. Euroclear
participants include banks (including central banks), securities brokers and
dealers and other professional financial intermediaries and may include the
underwriters of any series of certificates. Indirect access to the

                                      S-11
<Page>
Euroclear System is also available to other firms that clear through or maintain
a custodial relationship with a Euroclear participant, either directly or
indirectly.

    Securities clearance accounts and cash accounts with the Euroclear operator
are governed by the "Terms and Conditions Governing Use of Euroclear" and the
related "Operating Procedures of the Euroclear System", and applicable Belgian
law. These rules and laws govern transfers of securities and cash within the
Euroclear system, withdrawals of securities and cash from the Euroclear system,
and receipts of payments with respect to securities in the Euroclear system. All
securities in the Euroclear system are held on a fungible basis without
attribution of specific certificates to specific securities clearance accounts.
The Euroclear operator acts under these rules and laws only on behalf of
Euroclear participants, and has no record of or relationship with persons
holding through Euroclear participants.

    Distributions with respect to notes held through Clearstream or Euroclear
will be credited to the cash accounts of Clearstream customers or Euroclear
participants in accordance with the relevant system's rules and procedures, to
the extent received by its depositary. Those distributions will be subject to
tax reporting in accordance with relevant U.S. tax laws and regulations.

NOTICES

    Notices to holders of the notes will be sent by mail to the registered
holders and will be published, whether the notes are in global or definitive
form, and so long as the notes are listed on the Luxembourg Stock Exchange, in a
daily newspaper of general circulation in Luxembourg. It is expected that
publication will be made in Luxembourg in the LUXEMBURGER WORT. Any notice will
be deemed to have been given on the date of the publication or, if published
more than once, on the date of the first publication. So long as the notes are
listed on the Luxembourg Stock Exchange, any change in the Luxembourg paying
agent and transfer agent will be published in Luxembourg in the manner set forth
above.

REDEMPTION

    The notes may not be redeemed prior to maturity except as described in this
prospectus supplement.

PRESCRIPTION

    Under New York's statute of limitations, any legal action to enforce our
payment obligations evidenced by the notes must be commenced within six years
after payment is due. Thereafter our payment obligations will generally become
unenforceable.

CONCERNING THE TRUSTEE

    The trustee has extended a line of credit to us. We and our affiliates
maintain bank accounts, borrow money and engage in general financing and
commercial banking transactions with Bank One N.A., an affiliate of the trustee.
Banc One Capital Markets, Inc., another affiliate of the trustee, is an
underwriter for this offering.

                                      S-12
<Page>
                 MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES

    The following section summarizes certain U.S. federal income tax
consequences relating to the ownership of the notes. This section does not apply
to you if you are subject to special tax rules, such as those that apply to:

    - brokers and security dealers;

    - traders in securities that elect to mark to market;

    - banks;

    - life insurance companies;

    - tax-exempt organizations;

    - persons who will hold the notes as part of a hedging, straddle, integrated
      or conversion transaction; or

    - persons whose functional currency for tax purposes is not the U.S. dollar.

    This section is based upon the laws, regulations, rulings and decisions
currently in effect, which could change at any time (possibly with retroactive
effect). The discussion does not address foreign, state and local tax issues and
does not address estate, gift or alternative minimum tax issues. Additionally,
this section, except as otherwise noted, deals only with persons who will hold
their notes as capital assets. You should consult with your own tax advisor
concerning all of the tax consequences of owning a note.

U.S. BENEFICIAL OWNERS

    This section describes your tax consequences if you are a "U.S. beneficial
owner." You are a U.S. beneficial owner if you are a beneficial owner of a note
and you are, for U.S. federal income tax purposes:

    - a citizen or resident of the United States;

    - a domestic corporation;

    - a domestic partnership (except as may be provided in U.S. Treasury
      Regulations); or

    - an estate or trust whose income is subject to U.S. federal income tax on a
      net income basis in repect of the note.

If you are not a U.S. beneficial owner, this section does not apply to you, and
you should refer to the section entitled "Non-U.S. beneficial owners."

    INTEREST.  For U.S. federal income tax purposes, interest on the notes will
be taxable to you as ordinary income when it is received or accrued, depending
upon your method of tax accounting.

    SALE OF NOTES.  Upon a sale, exchange or redemption of a note, you will
generally recognize gain or loss equal to the difference between the amount
realized on the sale (not including any amounts attributable to accrued and
unpaid interest) and your adjusted basis in the note for U.S. federal income tax
purposes. Except to the extent attributable to accrued but unpaid interest on
the note (and subject to the market discount rules discussed below), any gain or
loss you recognize on the sale of a note will be capital gain or loss.

    MARKET DISCOUNT.  If the amount you pay for a note is less than its
principal amount (other, generally, than on original issuance) that difference
will constitute market discount, unless the market

                                      S-13
<Page>
discount rules treat the difference as DE MINIMIS. In general, unless you elect
to include market discount in income currently:

    - any gain realized on a sale of a note acquired with market discount or
      upon any payment of principal on such a note will be ordinary income to
      the extent of accrued market discount; and

    - deductions for interest on any debt you incur or continue to purchase or
      carry the note may be deferred until you sell the note.

    You may elect to include market discount in income currently, but generally
this election will apply to all debt instruments you acquire during or after the
first taxable year to which the election applies and you may not revoke this
election without the consent of the U.S. Internal Revenue Service. You should
consult a tax advisor before making this election.

    PREMIUM.  If you buy a note for an amount in excess of its principal amount,
that excess will constitute bond premium. You may elect to amortize bond
premium. If you make this election:

    - amortizable bond premium will generally be treated as a reduction of your
      interest income from the notes determined on a constant yield basis; and

    - you will be required to reduce your basis in the notes by the amount of
      your amortized bond premium.

    Your election to amortize bond premium will generally apply to all debt
instruments (other than tax-exempt obligations) you hold on or after the first
day of the first taxable year to which the election applies, and you may not
revoke this election without the consent of the IRS. You should consult a tax
advisor before making the election. If you do not make (or have not previously
made) the election, you will not be entitled to amortize any bond premium on the
notes.

NON-U.S. BENEFICIAL OWNERS

    This section describes the tax consequences to a non-U.S. beneficial owner.
You are a non-U.S. beneficial owner if:

    - you are the beneficial owner of a note;

    - you have no connection with the United States other than holding a note;
      and

    - for U.S. federal income tax purposes, you are:

       - a non-resident alien individual;

       - a foreign corporation;

       - a foreign partnership; or

       - an estate or trust that is not subject to United State income tax on a
         net income basis in respect of the note.

If you are not a non-U.S. beneficial owner, this section does not apply to you.

    Any gain you recognize on a sale of a note will not be subject to any
deduction or withholding for U.S. federal income tax purposes (except possibly,
for backup withholding as discussed below). Additionally, no U.S. federal income
tax deduction or withholding will be made from interest paid on your notes,
provided that:

    - you do not actually or constructively own 10% or more of the combined
      voting power of all classes of our stock entitled to vote;

                                      S-14
<Page>
    - you are not a controlled foreign corporation with respect to which we are
      a "related person" within the meaning of Section 864(d)(4) of the U.S.
      Internal Revenue Code of 1986; and

    - you provide the U.S. paying agent with a statement signed by you under
      penalties of perjury that (a) certifies that you are not a U.S. beneficial
      owner and (b) provides your name and address.

    Recently issued U.S. tax regulations attempt to unify the certification
requirements discussed above, clarify reliance standards and provide special
rules applicable to intermediaries, partnerships, estates and trusts. We urge
prospective investors to consult their own tax advisors regarding the effect and
application of those U.S. tax regulations.

BACKUP WITHHOLDING

    U.S. BENEFICIAL OWNERS.  Generally, if you are a non-corporate U.S.
beneficial owner, payments made on your notes will have to be reported to the
IRS. In addition, any proceeds received from a sale of your notes will generally
have to be reported to the IRS. Backup withholding may apply to payments made on
your notes and to proceeds received from a sale of your notes if you fail to
provide an accurate certified taxpayer identification number to the appropriate
party or if you are notified by the IRS that you have failed to report all
interest and dividends required to be shown on your U.S. federal income tax
returns. Backup withholding is not an additional tax and you will be able to
claim a refund or credit for taxes withheld during any taxable year at the time
you file your U.S. federal income tax return for that year.

    NON-U.S. BENEFICIAL OWNERS.  If you are a non-U.S. beneficial owner, you
will generally be exempt from backup withholding with respect to payments made
on your notes so long as you provide the certification described above under
"Non-U.S. beneficial owners." Even if you provide the certification, however,
payments of interest made to you will generally have to be reported to the IRS
by the payor on Form 1042-S.

    Proceeds you receive from a sale of your notes effected outside the United
States to or through a foreign office of a broker will generally be exempt from
backup withholding and information reporting. However, unless you certify as to
your non-U.S. status or otherwise establish an exemption, information reporting
(but not backup withholding) may apply to proceeds made through the foreign
office of a broker, if the broker is

    - a U.S. person;

    - a controlled foreign corporation for U.S. income tax purposes;

    - a foreign person 50% or more of whose gross income from all sources for a
      specified 3-year period is effectively connected with the conduct of a
      trade or business within the United States;

    - a foreign partnership if it is engaged in a trade or business in the
      United States or if 50% or more of its income or capital interests are
      held by U.S. persons; or

    - certain branches of foreign banks or insurance companies.

Proceeds received from a sale of your notes effected through the U.S. office of
a broker will be subject to backup withholding and reporting, unless you certify
as to your non-U.S. status or otherwise establish an exemption.

POSSIBLE EUROPEAN UNION REQUIREMENTS

    The European Union is considering new procedures that would apply to you if
you are a tax resident of a member state and you receive interest on notes from
a paying agent located in another

                                      S-15
<Page>
member state. Under these procedures, the paying agent's member state would
adopt one of the following rules:

    - the paying agent would be required to withhold tax on interest paid to you
      on the notes, unless you follow specified procedures to show that you have
      reported the interest to the tax authorities in your state of residence;
      or

    - the interest paid to you would be reported to the tax authorities in your
      state of residence by the paying agent's member state.

No decision has been made whether to adopt these requirements. Even if they are
adopted, it is not clear what their effective date will be. We advise you to
consult your tax advisor about the possible implications of these requirements.

                                      S-16
<Page>
                                  UNDERWRITING

    We are selling the notes to the underwriters named below under an
underwriting agreement dated June 5, 2002. The underwriters, and the principal
amount of the notes that each of them has severally agreed to purchase from us,
are as follows:

<Table>
<Caption>
                                                                 PRINCIPAL
                                                                  AMOUNT
UNDERWRITER                                                   ---------------
                                                           
BNP Paribas Securities Corp.................................  $175,000,000.00
Salomon Smith Barney Inc....................................   175,000,000.00
Banc of America Securities LLC..............................    25,000,000.00
Banc One Capital Markets, Inc...............................    25,000,000.00
Bear, Stearns & Co. Inc.....................................    25,000,000.00
Deutsche Bank Securities Inc................................    25,000,000.00
J.P. Morgan Securities Inc..................................    25,000,000.00
Wells Fargo Brokerage Services, LLC.........................    25,000,000.00
                                                              ---------------
    Total...................................................  $500,000,000.00
                                                              ===============
</Table>

    The underwriters propose initially to offer the notes to the public at the
public offering price set forth on the cover of this prospectus supplement and
to certain dealers at that price less a concession not in excess of 0.200% of
the principal amount of the notes. The underwriters may allow, and the dealers
may reallow, a discount not in excess of 0.150% of the principal amount of the
notes to certain other dealers. After the initial public offering, the public
offering price, concession and discount may be changed.

    To facilitate this offering, BNP Paribas Securities Corp., on behalf of the
underwriters, may engage in transactions that stabilize, maintain or otherwise
affect the price of the notes. Specifically, BNP Paribas Securities Corp. may
over-allot in connection with the offering, creating a short position in the
notes for its own account. In addition, to cover over-allotments or to stabilize
the price of the notes, BNP Paribas Securities Corp. may bid for and purchase
notes in the open market. Finally, the underwriting syndicate may reclaim
selling concessions allowed to an underwriter or a dealer if the syndicate
repurchases previously distributed notes in transactions to cover syndicate
short positions, in stabilization transactions or otherwise.

    In general, purchases of a security for the purpose of stabilization or to
reduce a short position could cause the price of the notes to be higher than it
might be in the absence of such purchases.

    The underwriters do not, nor do we, make any representation or prediction as
to the direction or magnitude of any effect that the transactions described
above may have on the price of the notes. In addition, neither we nor any of the
underwriters make any representation that the underwriters will engage in those
transactions or that those transactions, once commenced, will not be
discontinued without notice.

    The notes are offered for sale in those jurisdictions in the United States,
Canada, Europe, Asia and elsewhere where it is lawful to make those offers. Each
of the underwriters has represented and agreed that it has not offered, sold or
delivered and will not offer, sell or deliver any of the notes directly or
indirectly, or distribute this prospectus supplement or the accompanying
prospectus or any other offering material relating to the notes, in or from any
jurisdiction except under circumstances that will result in compliance with the
applicable laws and regulations of those jurisdictions and that will not

                                      S-17
<Page>
impose any obligations on us except as set forth in the underwriting agreement.
In particular, each underwriter has represented and agreed that:

        -  it has not offered or sold and will not offer or sell any notes to
    persons in the United Kingdom prior to the expiration of the period of six
    months from the issue date of the notes except to persons whose ordinary
    activities involve them in acquiring, holding, managing or disposing of
    investments (as principal or agent) for the purpose of their businesses or
    otherwise in circumstances which have not resulted and will not result in an
    offer to the public in the United Kingdom within the meaning of the Public
    Offers of Securities Regulations 1995 (as amended) or the Financial Services
    and Markets Act 2000;

        -  it has communicated or caused to be communicated and will only
    communicate or cause to be communicated any invitation or inducement to
    engage in investment activity (within the meaning of Section 21 of the
    Financial Services and Markets Act 2000) received by it in connection with
    the sale or issue of the notes in circumstances in which Section 21(1) of
    the Financial Services and Markets Act 2000 does not apply to Wells Fargo
    Financial;

        -  it has complied and will comply with all applicable provisions of the
    Financial Services and Markets Act 2000 with respect to anything done by it
    in relation to any notes in, from or otherwise involving the United Kingdom;

        -  it will not offer or sell any notes directly or indirectly in Japan
    or to, or for the benefit of any Japanese person or to others, for
    re-offering or re-sale directly or indirectly in Japan or to any Japanese
    person except pursuant to an exemption from the registration requirements
    of, and otherwise in compliance with, Securities and Exchange Law of Japan
    and any other applicable laws and regulations of Japan. For purposes of this
    paragraph, "Japanese person" shall mean any person resident in Japan,
    including any corporation or other entity organized under the laws of Japan;

        -  it is aware of the fact that no German selling prospectus
    (VERKAUFSPROSPEKT) has been or will be published in respect of the sale of
    the notes and that it will comply with the Securities Selling Prospectus Act
    (the "Act") of the Federal Republic of Germany (WERTPAPIER-
    VERKAUFSPROSPEKTGESET). In particular, each underwriter has undertaken not
    to engage in any public offering (OFFENTLICHE ANBIETEN) in the Federal
    Republic of Germany with respect to any notes otherwise than in accordance
    with the Act and any other act replacing or supplementing the Act and all
    other applicable laws and regulations; and

        -  the notes are being issued and sold outside the Republic of France
    and that, in connection with their initial distribution, it has not offered
    or sold and will not offer or sell, directly or indirectly, any notes to the
    public in the Republic of France, and that it has not distributed and will
    not distribute or cause to be distributed to the public in the Republic of
    France the prospectus supplement, the prospectus or any other offering
    material relating to the notes, and that those offers, sales and
    distributions have been and will be made in France only to qualified
    investors (INVESTISSEURS QUALFIES) and/or a restricted group of investors
    (CERCLE RESTREINT D'INVESTISSEURS), all as defined in Article 6 of
    ordonnance no. 67-833 dated 28th September, 1967 (as amended) and decret
    no. 98-880 dated 1st October, 1998.

    We estimate our expenses in connection with this offering, other than
underwriting discounts and commissions, will be approximately $50,000. We
estimate the net proceeds of this offering, after estimated expenses, will be
approximately $495,140,000.

    We have agreed to indemnify the underwriters against certain liabilities,
including liabilities under the Securities Act of 1933, as amended. We have also
agreed to contribute to the payments the underwriters may be required to make
because of those liabilities.

                                      S-18
<Page>
    One of the underwriters, Banc One Capital Markets, Inc., is an affiliate of
the trustee, Bank One Trust Company, National Association. One of the
underwriters, Wells Fargo Brokerage Services, LLC, is an affiliate of Wells
Fargo Financial. The participation of Wells Fargo Brokerage Services, LLC in the
offer and sale of the notes as described in this prospectus supplement complies
and will comply with Rule 2720 of the Conduct Rules of the National Association
of Securities Dealer, Inc. (the "NASD") regarding the offer and sale of
securities of an affiliate. No NASD member participating in offers and sales of
securities will execute a transaction in the notes in a discretionary account
without the prior specific written approval of the members' customer. Any
obligation of Wells Fargo Brokerage Services, LLC is the sole obligation of
Wells Fargo Brokerage Services, LLC and does not create an obligation on the
part of Wells Fargo Financial or any other affiliate of Wells Fargo Financial.

    This prospectus supplement and the accompanying prospectus may be used by
Wells Fargo Brokerage Services, LLC in connection with offers and sales related
to secondary market transactions in the notes. Wells Fargo Brokerage Services,
LLC may act as principal or agent in such transactions. These sales will be made
at prices related to prevailing market prices at the time of sale. Certain
affiliates of certain of the underwriters may also provide commercial banking,
financial advisory and investment banking services to us and certain of our
affiliates from time to time.

                                    EXPERTS

    The consolidated financial statements of Wells Fargo Financial as of
December 31, 2000 and 2001, and for each of the years in the three-year period
ended December 31, 2001, have been incorporated by reference in this prospectus
supplement, the accompanying prospectus and the related registration statement
in reliance upon the report of KPMG LLP, independent accountants, incorporated
by reference herein, and upon authority of the firm as experts in accounting and
auditing.

                        LISTING AND GENERAL INFORMATION

    We have applied to list the notes on the Luxembourg Stock Exchange. In
connection with the listing application, we have deposited our certificate of
incorporation and by-laws and a legal notice relating to the issuance of the
notes with the Registrar of the District Court of Luxembourg (GREFFIER EN CHEF
DU TRIBUNAL D'ARRONDISSEMENT DE ET A LUXEMBOURG), where copies may be obtained
upon request. So long as any of the notes is outstanding, copies of these
documents, together with this prospectus supplement, the accompanying
prospectus, the indenture, a copy or copies of the global note or global notes
representing the notes, our annual reports on Form 10-K for the years ended
December 31, 2000 and December 31, 2001, our quarterly report on Form 10-Q for
the quarter ended March 31, 2002 and all future annual reports and quarterly
reports, will be made available free of charge at the main office of Banque
Generale du Luxembourg S.A., our listing agent, paying agent and transfer agent
for the notes in Luxembourg. Banque Generale du Luxembourg S.A., will act as
intermediary between us and the holders of the notes, but not as intermediary
between the Luxembourg Stock Exchange and the holders of the notes nor as
intermediary between the Luxembourg Stock Exchange and us. We will maintain a
listing agent, paying agent and transfer agent for the notes in Luxembourg for
so long as the notes are listed on the Luxembourg Stock Exchange.

    Except as disclosed in this prospectus supplement or the accompanying
prospectus, including the documents incorporated by reference, there has been no
material adverse change in our financial position since December 31, 2001.

    Our annual reports include our audited consolidated financial statements as
of the dates and for the periods presented in those reports. The quarterly
reports include our unaudited consolidated financial statements as of the dates
and for the periods presented in those reports. We do not make non-consolidated
financial statements publicly available. Our independent auditors are KPMG LLP.

                                      S-19
<Page>
Neither we nor any of our subsidiaries is involved in litigation, arbitration,
or administrative proceedings relating to claims or amounts that are material in
the context of the offering of the notes.

    We are not aware of any material litigation, arbitration or administrative
proceedings pending or threatened.

    Resolutions authorizing the issue and sale of the notes were adopted by our
board of directors effective as of June 5, 2002.

    The notes have been accepted for clearance through Clearstream and Euroclear
and have been assigned Euroclear and Clearstream Common Code No. 014962557,
International Security Identification Number (ISIN) US94975CAK36 and CUSIP
No. 94975CAK3.

                                      S-20
<Page>
                                             AS FILED PURSUANT TO RULE 424(b)(5)
                                            REGISTRATION STATEMENT NO. 333-54934

    PROSPECTUS
- ---------

                          WELLS FARGO FINANCIAL, INC.

                                 $4,000,000,000

                                DEBT SECURITIES
                                ---------------

    We may issue up to an aggregate $4.0 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.

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

    Information contained herein is subject to completion or amendment. A
registration statement for these securities has been filed with the SEC. These
securities may not be sold nor may offers to buy be accepted prior to the time
the registration statement becomes effective. This prospectus shall not
constitute an offer to sell or the solicitation of any offer to buy nor shall
there be any sale of these securities in any state in which an offer,
solicitation or sale would be unlawful prior to registration or qualification
under the securities laws of any such state.

                The date of this prospectus is February 13, 2001
<Page>
                               TABLE OF CONTENTS

<Table>
<Caption>
                                                                PAGE
                                                              --------
                                                           
WHERE YOU CAN FIND MORE INFORMATION ABOUT WELLS FARGO
  FINANCIAL.................................................      1
INCORPORATION OF INFORMATION WE FILE WITH THE SEC...........      1
WELLS FARGO FINANCIAL, INC..................................      1
USE OF PROCEEDS.............................................      2
RATIOS OF EARNINGS TO FIXED CHARGES.........................      2
DESCRIPTION OF DEBT SECURITIES..............................      2
PLAN OF DISTRIBUTION........................................     10
LEGAL OPINIONS..............................................     11
EXPERTS.....................................................     11
</Table>
<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;

    - Quarterly Reports on Form 10-Q for the quarters ended March 31, June 30
      and September 30, 2000;

    - Current Report on Form 8-K dated June 30, 2000.

    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.

                                       1
<Page>
    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.

    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,
- --------------------------------    NINE MONTHS ENDED
1995   1996   1997   1998   1999   SEPTEMBER 30, 2000
- ----   ----   ----   ----   ----   -------------------
                    
2.13   2.11   2.00   1.72   1.78      1.58
</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 BNY Midwest Trust Company as successor to Harris Trust and
Savings Bank, as trustee. Unless otherwise indicated, Bank One Trust Company,
National Association and BNY Midwest Trust Company 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.

                                       2
<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

                                       3
<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)

                                       4
<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. BNY Midwest Trust Company 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 sufficient to make such payments when

                                       5
<Page>
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)

                                       6
<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)

                                       7
<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 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

                                       8
<Page>
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 BNY Midwest Trust Company or with its affiliates.

                                       9
<Page>
                              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.

    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.

                                       10
<Page>
                                 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
subsidiaries as of December 31, 1998, and for each of the two years in the
period ended December 31, 1998, incorporated by reference herein and in the
registration statement from the Company's Annual Report on Form 10-K for the
year ended December 31, 1999, have been audited by Deloitte & Touche LLP,
independent auditors, as stated in their report, which is incorporated herein by
reference, and have been so incorporated in reliance upon the report of such
firm given upon their authority as experts in accounting and auditing.

                                       11
<Page>
                   PRINCIPAL OFFICE OF WELLS FARGO FINANCIAL

                               206 Eighth Street

                              Des Moines, IA 50309

<Table>
                                            
TRUSTEE AND REGISTRAR                          PRINCIPAL PAYING AGENT

Bank One Trust Company, National Association   Bank One Trust Company, National Association
1 Bank One Plaza                               1 Bank One Plaza
Suite IL1-0126                                 Suite IL1-0126
Chicago, IL 60670-0126                         Chicago, IL 60670-0126

LUXEMBOURG LISTING AGENT                       LUXEMBOURG PAYING AGENT
                                               AND TRANSFER AGENT

Banque Generale du Luxembourg S.A.             Banque Generale du Luxembourg S.A.
50, Avenue J.F. Kennedy                        50, Avenue J.F. Kennedy
L-2951 Luxembourg                              L-2951 Luxembourg

                                       LEGAL ADVISERS

To WELLS FARGO FINANCIAL                       To the UNDERWRITERS

Steve R. Wagner                                Orrick, Herrington & Sutcliffe LLP
Wells Fargo Financial, Inc.                    666 Fifth Avenue
206 Eighth Street                              New York, NY 10103
Des Moines, IA 50309
</Table>

                       AUDITORS TO WELLS FARGO FINANCIAL
                                    KPMG LLP
                            4200 Wells Fargo Center
                            90 South Seventh Street
                             Minneapolis, MN 55402
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                                     [LOGO]

                          WELLS FARGO FINANCIAL, INC.

                                  $500,000,000

               4.875% Senior Notes 2007 Series Due June 12, 2007

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

                                   PROSPECTUS
                                   SUPPLEMENT

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

                          JOINT BOOK-RUNNING MANAGERS

           BNP PARIBAS                           Salomon Smith Barney

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

                                  CO-MANAGERS

Banc of America Securities LLC

       Banc One Capital Markets, Inc.

                   Bear, Stearns & Co. Inc.

                             Deutsche Bank Securities

                                       JPMorgan

                                                Wells Fargo Brokerage Services,
                                                LLC

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

                                  June 5, 2002

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