C Corp Tax Deadline 2025

C Corp Tax Deadline 2025. File form 1120 by this date. This date marks the end of the fiscal year for businesses and is the last opportunity to submit form.

February 1, 2025 (start date) + 75 days = april 17, 2025; If you’re a c corporation or llc electing to file your taxes as one for the 2023 tax year, your corporate tax return is due on april 15th, 2025—unless you use your own fiscal calendar, in which case it’s due on the 15th of the 4th.