Irs Filing Deadline 2025 California. Key dates include the april 15 filing deadline for your individual income tax return, as well as important dates for estimated tax payments and contributions to iras or hsas. If you filed an extension on filing your income taxes, the deadline is tuesday, oct.

California tax extension 2024 deadline the california tax deadline extension covers tax filing and payment deadlines initially falling between january 21, 2024, and june. The federal tax filing deadline (tax day) is april 15, 2025, with an extension deadline of october 15, 2025.