Tax Filing Deadline 2025 California. With the tax filing deadline moving to may 17, filing a regular tax extension will give you less than six months to file your return on top of the tax filing deadline. If you filed an extension to file in april, the extended deadline for submitting your federal and california income tax returns is.
The due date to file your california individual or fiduciary income tax return and pay any balance due is april 15, 2025. If you live or work in san diego county and were affected by storms and flooding, you have until june 17, 2025, to file and pay your federal and state taxes.