Income Tax

Income Tax in California: Complete Guide 2026

Updated 2026-03-10

Data Notice: Figures, rates, and statistics cited in this article are based on the most recent available data at time of writing and may reflect projections or prior-year figures. Always verify current numbers with official sources before making financial, medical, or educational decisions.

Income Tax in California: Complete Guide 2026

Tax information is for educational purposes only and does not constitute tax advice. Consult a licensed tax professional for your specific situation.

California imposes the highest state income tax rate in the nation at ~13.30% on income exceeding ~$1 million (including the Mental Health Services Tax surcharge). The state’s nine-bracket graduated system starts at ~1.00% and escalates steeply for higher earners. Despite the high top rate, California’s generous standard deduction, exemption credits, and robust credit programs mean that low- and moderate-income taxpayers face relatively modest effective rates. California is also notable for taxing capital gains as ordinary income, with no preferential rate.

California Income Tax Brackets (2026)

Taxable Income (Single)Tax Rate
~$0 — ~$10,412~1.00%
~$10,413 — ~$24,684~2.00%
~$24,685 — ~$38,959~4.00%
~$38,960 — ~$54,081~6.00%
~$54,082 — ~$68,350~8.00%
~$68,351 — ~$349,137~9.30%
~$349,138 — ~$418,961~10.30%
~$418,962 — ~$698,271~11.30%
Over ~$698,271~12.30%

Plus: ~1.00% Mental Health Services Tax on income over ~$1,000,000 (bringing the top rate to ~13.30%).

Estimated Tax by Income (Single Filer)

Gross IncomeApprox. CA TaxEffective Rate
~$40,000~$1,100~2.75%
~$60,000~$2,500~4.17%
~$100,000~$5,600~5.60%
~$150,000~$10,250~6.83%
~$250,000~$19,600~7.84%
~$500,000~$44,700~8.94%

How California Income Tax Works

Standard Deduction and Exemptions

Filing StatusStandard DeductionExemption Credit
Single~$5,363~$144
Married Filing Jointly~$10,726~$288
Head of Household~$10,726~$144
Dependent exemption—~$433 each

California’s standard deduction is lower than the federal amount, and the exemption credits are modest dollar amounts that directly reduce tax owed.

Capital Gains Treatment

California taxes all capital gains — short-term and long-term — as ordinary income. There is no preferential rate for long-term capital gains. This means a taxpayer in the top bracket pays ~13.30% on capital gains, compared to the federal long-term rate of ~20% (plus ~3.8% NIIT). Combined federal and California rates on capital gains can exceed ~37%.

Federal Conformity

California generally conforms to the Internal Revenue Code but maintains numerous state-specific differences. Notable non-conformity areas include the treatment of Section 199A (qualified business income deduction, not allowed in California), health savings accounts (taxable in California), and Roth IRA conversions (conform to federal timing).

Retirement Income

  • Social Security: Fully exempt from California income tax
  • Pensions: Taxable as ordinary income (no exclusion)
  • 401(k)/IRA distributions: Fully taxable at regular rates
  • Government pensions: Federal, state, and military pensions are all taxable

California does not offer a general retirement income exclusion, making it less favorable for retirees compared to states like Pennsylvania or Illinois.

Comparison to Neighboring States

StateTop Income Tax RateBracketsCapital Gains Treatment
California~13.30%10 (incl. MHS)Taxed as ordinary income
Oregon~9.90%4 bracketsTaxed as ordinary income
Nevada~0%No income taxN/A
Arizona~2.50%FlatTaxed as ordinary income
Washington~0% (+ ~7% cap gains)No income tax7% on gains >$270K

The contrast with neighboring Nevada and Arizona is stark. Many high-income Californians have relocated to these states to escape the steep top rates.

Credits and Deductions

  • California Earned Income Tax Credit (CalEITC): Up to ~$3,529 for qualifying taxpayers with earned income under ~$30,950
  • Young Child Tax Credit: Up to ~$1,117 for families with a child under age 6
  • Renter’s Credit: ~$60 (single) or ~$120 (joint) for qualifying renters
  • Child and Dependent Care Credit: A percentage of qualifying expenses
  • College Access Tax Credit: For contributions to the Cal Grant program
  • Itemized Deductions: California allows itemized deductions including mortgage interest, charitable contributions, and state/local taxes (subject to limitations)

Tips for Minimizing Your California Income Tax

  1. Maximize retirement contributions to traditional 401(k) and IRA accounts to reduce California taxable income during high-earning years.

  2. Plan capital gains carefully since California taxes them as ordinary income. Consider installment sales or charitable remainder trusts to spread gains over multiple years.

  3. Claim CalEITC and the Young Child Tax Credit if you have low to moderate income. These refundable credits can provide thousands of dollars in relief.

  4. Consider the timing of Roth conversions carefully, as the converted amount is fully taxable in California at ordinary rates.

  5. Itemize deductions if your mortgage interest, charitable contributions, and other deductions exceed the standard deduction of ~$5,363 (single).

  6. Be aware that HSAs are taxable in California — contributions are not deductible and earnings are taxable for state purposes, unlike the federal treatment.

Key Takeaways

  • California’s top income tax rate is ~13.30% (including the Mental Health Services Tax), the highest in the nation
  • The graduated system has nine brackets plus the MHS surcharge, starting at ~1.00%
  • Capital gains are taxed as ordinary income with no preferential rate
  • Social Security is exempt, but pensions and retirement account distributions are fully taxable
  • CalEITC and the Young Child Tax Credit provide significant relief for low-income families
  • HSAs are not tax-advantaged in California, unlike most other states

Next Steps