When Is Tax Deadline 2025 For California. Taxpayers now have until october 15, 2025, to file their 2024 california tax returns and make any tax payments that would have been due between january 7, 2025, and october 15, 2025. 15, according to the internal revenue service (irs) and the.

The due date to file your california state tax return and pay5any balance due is april 15, 2025. As a result, affected individuals and businesses will have until oct.