Irs Extension Deadline 2024 California. The california tax deadline extension covers tax filing and payment deadlines initially falling between january 21, 2024, and june 17, 2024. The due date to file your california state tax return and pay any balance due is april 15, 2024.

Washington — california storm victims now have until may 15, 2023, to file various federal individual and business tax returns and make tax payments, the. This is the date when the irs starts accepting and processing federal tax returns.