When Are Corporate Taxes Due 2024 California State. The ftb started accepting state tax returns this month. The due date to file your california state tax return and pay any balance due is april 15, 2024.

The 2024 tax rates and thresholds for both the california state tax tables and federal tax tables are comprehensively integrated into the california tax calculator for 2024. If you’re a c corporation or llc electing to file your taxes as one for 2023, your corporate tax return is due on april 15th, 2024—unless you.