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




Chief Executive Officer
Section 906 Certification under Sarbanes Oxley Act





I, Julian Sluyters, certify that:

1.       I have reviewed this report, filed on behalf Scudder S&P 500 Index
         Fund, a series of Investment Trust, 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.




August 26, 2005                             /s/ Julian Sluyters
                                            Julian Sluyters
                                            Chief Executive Officer
                                            Scudder S&P 500 Index Fund, a series
                                            of Investment Trust






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





Chief Financial Officer
Section 906 Certification under Sarbanes Oxley Act





I, Paul Schubert, certify that:

1.       I have reviewed this report, filed on behalf of Scudder S&P 500 Index
         Fund, a series of Investment Trust, 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.



August 26, 2005                             /s/ Paul Schubert
                                            Paul Schubert
                                            Chief Financial Officer
                                            Scudder S&P 500 Index Fund, a series
                                            of Investment Trust