Tax Deadline 2024 San Diego County Ca. Quarterly payroll and excise tax returns normally due on jan. However, california grants an automatic extension until october 15, 2024 to file.

You may now search and pay for secured, unsecured, defaulted, supplemental and escape tax bills. Residents of san diego county have until june 17, 2024 to file their taxes in lieu of april 15 after the irs offered tax relief following the january floods.