Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group



President
Section 906 Certification under Sarbanes Oxley Act





I, Vincent J. Esposito, certify that:

1.       I have reviewed this report, filed on behalf of Japanese Equity Fund, a
         series of Scudder Investors Funds, Inc., on Form N-CSR;

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.




November 1, 2005                    /s/Vincent J. Esposito
                                    ----------------------
                                    Vincent J. Esposito
                                    President
                                    Japanese Equity Fund, a series of Scudder
                                    Investors Funds, Inc.



                                             Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group



Chief Financial Officer and Treasurer
Section 906 Certification under Sarbanes Oxley Act





I, Paul Schubert, certify that:

1.       I have reviewed this report, filed on behalf of Japanese Equity Fund, a
         series of Scudder Investors Funds, Inc., on Form N-CSR;

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.



November 1, 2005                    /s/Paul Schubert
                                    ----------------------
                                    Paul Schubert
                                    Chief Financial Officer and Treasurer
                                    Japanese Equity Fund, a series of Scudder
                                    Investors Funds, Inc.