California Tax Return for 2026 & 2027

If you earn income in California or receive income from California sources, you may be required to file a California state income tax return.

California state income tax returns are generally filed with the California Franchise Tax Board using Form 540 or another form that matches your filing situation.

Who Must File a California Tax Return?

You may need to file a California tax return if you:

• Are a California resident with income above the filing requirement
• Earn California-source income as a nonresident
• Live in California for part of the year
• Have taxes withheld from your paycheck and want to claim a refund
• Qualify for refundable California tax credits

Even if you are not required to file, submitting a return may allow you to claim a refund or valuable tax credits.

Common California Tax Return Forms

California uses several individual income tax forms.

Filing Status Options

California generally uses the same filing status as your federal income tax return.

Available filing statuses include:

• Single
• Married Filing Jointly
• Married Filing Separately
• Head of Household
• Qualifying Surviving Spouse

Income Reported on a California Tax Return

Most taxpayers report:

• Wages and salaries
• Self-employment income
• Business income
• Interest income
• Dividend income
• Capital gains
• Rental income
• Retirement distributions
• Pension income

California does not tax Social Security retirement benefits.

Tax Credits

You may qualify for credits that reduce your California income tax, including:

• California Earned Income Tax Credit (CalEITC)
• Young Child Tax Credit
• Foster Youth Tax Credit
• Child and Dependent Care Expenses Credit
• Other state tax credits for eligible taxpayers

Filing Deadlines

California individual income tax returns are generally due on the same date as the federal income tax return unless the state announces an extension because of a disaster or other special circumstances.

Taxpayers who need additional time to file may qualify for an automatic filing extension. However, any tax owed is generally still due by the original deadline to avoid penalties and interest

How to File

California tax returns may be filed:

• Electronically using approved tax software
• Through a qualified tax professional
• By mailing a paper return
• Through California’s free online filing program if eligible

Electronic filing is generally the fastest and most accurate option.

Refunds

After filing, you may receive:

• A direct deposit refund
• A paper refund check
• A notice requesting additional information
• A bill if additional tax is owed

The processing time depends on the filing method and whether your return requires further review.

Unique Factors

California has one of the most comprehensive state income tax systems in the country.

Residents are taxed on income earned worldwide, while nonresidents are taxed only on income earned from California sources.

The state also offers several refundable tax credits that may increase a taxpayer’s refund.

Frequently Asked Questions

Who must file a California tax return?

California residents, part-year residents, and nonresidents with California-source income may be required to file depending on their income and filing status.

Which form do most California residents file?

Most full-year residents file Form 540, while part-year residents and nonresidents generally file Form 540NR.

Does California tax Social Security benefits?

No. Social Security retirement benefits are exempt from California state income tax.

Electronic Filing Recommendation 💻

Filing your California and federal tax returns electronically is the fastest and most secure way to submit your return and receive your refund.

Benefits include:

• Faster refund processing
• Greater filing accuracy
• Secure electronic tax records
• Direct deposit of refunds
• Immediate confirmation that your return has been accepted