Tax Due Date 2024 San Diego County. 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 due date to file your california state tax return and pay any balance due is april 15, 2024.

The due date to file your california state tax return and pay any balance due is april 15, 2024. The irs tax filing deadline is monday, june 17 for san diego county residents after the irs postponed tax filing and payment deadlines for people living in the area following.