CERTIFICATION
Pursuant to Rule 497(j), Federated Income Securities Trust (1933 Act File
No. 33-3164 and 1940 Act File No. 811-4577) ("Registrant") hereby certifies (a)
that the form of Prospectuses and the Statement of Additional Information used
with respect to Federated Short-Term Income Fund and Federated Intermediate
Income Fund, each a series of the Registrant, do not differ from those contained
in Post-Effective Amendment No. 33 ("Amendment No. 33") to its Registration
Statement and (b) that Amendment No. 33 was filed electronically.
Dated: July 7, 1998 By: /s/ C. Grant Anderson
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C. Grant Anderson
