When Are Taxes Due 2025 California. And, for many people, there are more tax deadlines to worry about than just the due date for your federal income tax return. This is the standard deadline unless april 15 falls on a weekend or public holiday, in which case the deadline moves to the following business day.

Estimated tax payments due for the third quarter of 2025. We look at the most important tax deadlines and tax extensions for california in 2024.