[DEUTSCHE ASSET MANAGEMENT LETTERHEAD]



Chief Executive Officer
Section 906 Certification under Sarbanes Oxley Act






I, Richard T. Hale, certify that:

1.   I have reviewed this report, filed on behalf of Scudder U.S. Bond Index
     Portfolio, a series of Scudder Investment Portfolios, on Form N-CSR of the
     Scudder U.S. Bond Index Portfolio (the "Company");

2.   Based on my knowledge and pursuant to 18 U.S.C. ss. 1350, the periodic
     report on Form N-CSR (the "Report") fully complies with the requirements of
     ss. 13 (a) or ss. 15 (d), as applicable, of the Securities Exchange Act of
     1934 and that the information contained in the Report fairly presents, in
     all material respects, the financial condition and results of operations of
     the Company.




August 19, 2003                              /s/Richard T. Hale
                                             -----------------------
                                             Richard T. Hale
                                             Chief Executive Officer
                                             Scudder U.S. Bond Index
                                             Portfolio, a series of Scudder
                                             Investment Portfolios



                                          [DEUTSCHE ASSET MANAGEMENT LETTERHEAD]





Chief Financial Officer
Section 906 Certification under Sarbanes Oxley Act






I, Charles A. Rizzo, certify that:

1.   I have reviewed this report, filed on behalf of Scudder U.S. Bond Index
     Portfolio, a series of Scudder Investment Portfolios, on Form N-CSR of the
     Scudder U.S. Bond Index Portfolio (the "Company");

2.   Based on my knowledge and pursuant to 18 U.S.C. ss. 1350, the periodic
     report on Form N-CSR (the "Report") fully complies with the requirements of
     ss. 13 (a) or ss. 15 (d), as applicable, of the Securities Exchange Act of
     1934 and that the information contained in the Report fairly presents, in
     all material respects, the financial condition and results of operations of
     the Company.




August 19, 2003                             /s/Charles A. Rizzo
                                            --------------------------------
                                            Charles A. Rizzo
                                            Chief Financial Officer
                                            Scudder U.S. Bond Index
                                            Portfolio, a series of Scudder
                                            Investment Portfolios