Item 11(b). EXHIBIT 99.906 CERT SECTION 906 CERTIFICATION In connection with the Report on Form N-CSR for The Parnassus Income Trust, the undersigned hereby certifies, to the best of his knowledge, that: (1) the report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the report fairly presents, in all material respects, the financial condition and results of operations of The Parnassus Income Trust. August 23, 2004			/s/ Jerome L. Dodson 				------------------------------------------- 				Jerome L. Dodson 				President August 23, 2004			/s/ Jack Gee 				------------------------------------------- 				Jack Gee 				Chief Financial Officer