6-K

                                    FORM 6-K
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                            Report of Foreign Issuer
                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934

                         For the month of February 2003

                        Commission File Number: 001-15276

                                 BANCO ITAU S.A.
                                (Itau Bank S.A.)
                 (Translation of Registrant's Name Into English)


                               Rua Boa Vista, 176
                         01014-919 Sao Paulo, SP, Brazil
                    (Address of principal executive offices)



Indicate by check mark whether the registrant files or will file annual reports
under cover Form 20-F or Form 40-F. Form 20-F X Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as
permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as
permitted by Regulation S-T Rule 101(b)(7):

Indicate by check mark whether by furnishing the information contained in this
Form, the registrant is also thereby furnishing information to the Commission
pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes No X


If "Yes" is marked, indicate below the file number assigned to the registrant in
connection with Rule 12g3-2(b): 82-___________________.




                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                                  BANCO ITAU S.A.
                                                   (Registrant)


Date: February 27, 2002     By:  /s/ Alfredo Egydio Setubal
                                 Name:    Alfredo Egydio Setubal
                                 Title:   Investor Relations Officer

                            By:  /s/ Silvio Aparecido de Carvalho
                                 Name:    Silvio Aparecido de Carvalho
                                 Title:   Chief Accounting Officer



                                  EXHIBIT INDEX


99.1    Announcement:  Banco Itau S.A. and Banco BBA Creditanstalt S.A.
        announce the completion of the association between the two banks

EX-99.1

                                  EXHIBIT 99.1




                                  Announcement

         Banco Itau S.A. and Banco BBA Creditanstalt S.A. announce the
              completion of the association between the two banks

Banco Itau S.A. (ITAU) and Banco BBA Creditanstalt S.A. (BBA) wish to announce
to their shareholders and the market that:

1) The association of ITAU with BBA was concluded today with:

o  the approval by the Central Bank of Brazil and other regulatory authorities,

o  the signature of both parties to all documentation, and

o  the financial settlement of the operation.

2) From March 10,  2003,  customers  included in the Large  Company  segment of
   ITAU and BBA will be serviced through a single  relationship channel. One
   hundred and eighty  employees  transferred from ITAU are now integrated with
   some four hundred and twenty employees from BBA, thus forming the new
   ITAU-BBA team;

3) Finaustria Companhia de Credito, Financiamento e Investimento's  consumer
   credit portfolio as well as the private bank, brokerage house and asset
   management operations are already under ITAU's management.

                                                    Sao Paulo, February 26, 2003

Alfredo Egydio Setubal                                  Fernao Bracher
Investor Relations Director                             Chief Executive Officer
Banco Itau S.A.                                         Banco Itau-BBA S.A.