California Tax Deadlines

When are taxes due in California?

California state income tax returns for 2025 are generally due on April 15, 2026, aligning with the federal deadline. However, some entity types such as partnerships and S-corporations have earlier deadlines (March 16, 2026). Check the deadlines above for your specific entity type.

Does California require estimated tax payments?

Yes, California generally requires estimated tax payments if you expect to owe more than a certain threshold in state income tax. Payments typically follow a quarterly schedule. Visit the estimated payments page for California for specific due dates.

What is the California tax extension deadline?

California generally grants a 6-month extension for filing state income tax returns, moving the deadline to October 15, 2026 for most individual filers. Note that an extension to file is not an extension to pay — any tax owed is still due by the original deadline.

What are the California tax rates for 2026?

California tax rates vary by income level and filing status. For the most current rates and brackets, visit California Franchise Tax Board at https://www.ftb.ca.gov. Tax rates can change annually based on state legislation.

Does California conform to federal due dates?

Many California deadlines follow the federal calendar. Always confirm on California Franchise Tax Board.

Where can I file California tax forms?

Visit California Franchise Tax Board at https://www.ftb.ca.gov for official forms and e-file options.