Corporate Tax Returns Due Date 2025. Return filing due date for first tax period (28 february 2025) businesses must submit their tax returns for the first tax period by the end of february 2025 to meet the. This approximate date will mark when the irs will begin accepting and processing tax returns.

If your business has filed successfully for a tax extension, sole. 299 rows the due date for the cit return on distributed profit arising from fy 2009 to fy.