Tax Deadline 2024 California Extension. Individual income tax filings and payments. Affected individuals and businesses in san diego county now have until june 17 to file their tax returns and pay federal and state taxes due between january 21 through june.
The june 17, 2024 deadline applies to individual income tax returns and payments normally due on april 15. The california tax deadline extension covers tax filing and payment deadlines initially falling between january 21, 2024, and june 17, 2024.