EX-99.CERT 11(b)


This certification is provided pursuant to Section 906 of the Sarbanes-Oxley Act
of 2002, and 18 U.S.C. ss.1350, and accompanies the report on Form N-CSR for the
period ended March 31, 2004 of Institutional Daily Income Fund ( the "Company").

Each of the undersigned officers of the Company hereby certify that, to the best
of such officer's knowledge:

         (i) the Form N-CSR fully complies with the requirements of Section
         13(a) or Section 15(d) of the Securities Exchange Act of 1934 (15
         U.S.C. 78m(a) or 78o(d)); and

         (ii) the information contained in the Form N-CSR fairly presents, in
         all material respects, the financial condition and results of operation
         of the Company.





Date:  June 3, 2004                                     /s/Steven W. Duff
                                                        Steven W. Duff
                                                        President




Date:  June 3, 2004                                     /s/Richard DeSanctis
                                                        Richard De Sanctis
                                                        Treasurer