Key Tax Facts: California
- Highest top marginal rate in the U.S. at 13.3%
- 1% Mental Health Services Tax on income above $1 million
- California does not fully conform to federal tax law changes
- No deduction for federal income taxes paid
Estimate Your 2025 Federal and California State Income Tax
California State Income Tax Overview
California has the highest top marginal state income tax rate in the country at 13.3%, applied to income above $1 million for single filers. The state uses nine graduated brackets ranging from 1% to 13.3%. Here is how the 2025 California income tax brackets work for single filers: 1% on income up to $10,756; 2% on $10,757-$25,499; 4% on $25,500-$40,245; 6% on $40,246-$55,866; 8% on $55,867-$70,606; 9.3% on $70,607-$360,659; 10.3% on $360,660-$432,787; 11.3% on $432,788-$721,314; 12.3% on $721,315-$999,999; and 13.3% on income above $1,000,000. Married couples filing jointly have thresholds at roughly double these amounts up to the millionaire surcharge. California's standard deduction is notably low at just $5,540 for single filers and $11,080 for married couples - meaning most residents pay state income tax on a larger share of their earnings than in states with higher deductions. To illustrate with a real example: a single Californian earning $80,000 in taxable income owes approximately $4,992 in state income tax - an effective rate of about 6.2%, even though their highest dollar is taxed at 9.3%. California does not conform to many federal tax deductions, including the federal standard deduction, so residents must use California-specific rules when filing Form 540. The state fully taxes capital gains as ordinary income and does not offer a separate lower rate for long-term gains. Social Security benefits are exempt from California state income tax regardless of income level, which is a meaningful benefit for retirees.
What Is Different About California's Income Tax
Deductions and exemptions
California's standard deduction is far below the federal figure, roughly $5,500 for single filers and $11,000 for joint filers, so most residents pay state tax on a larger share of income. Itemized deductions follow federal rules with notable differences: state income tax is not deductible, mortgage interest is allowed on up to $1 million of debt, and the deduction phases out at high incomes. Personal exemption credits are given as small credits rather than deductions.
Credits worth knowing
The California Earned Income Tax Credit and the Young Child Tax Credit together can be worth several thousand dollars to low-income working families. A renter's credit of $60 to $120 is available to renters under an income cap, and there is a child and dependent care credit and a credit for taxes paid to other states.
Retirement, capital gains, and other income
Social Security is exempt, but California taxes every other form of retirement income, including pensions, 401(k) and IRA withdrawals, and military retirement pay, at ordinary rates. Capital gains get no preferential rate, so a large stock sale can push a resident into the 9.3% to 13.3% brackets in a single year. The extra 1% Mental Health Services Tax applies to income above $1 million.
Rules summarized from the California Franchise Tax Board guidance for tax year 2025. Amounts that index annually are described in general terms; confirm the current figure on the official form instructions.
California Income Tax Brackets (Single Filers, 2025)
These are the California state income tax brackets for single filers. Married-filing-jointly brackets use wider income thresholds. Only the income within each bracket is taxed at that rate -- not your entire income.
| Taxable Income (Single) | Tax Rate |
|---|---|
| $0 - $10,756 | 1% |
| $10,756 - $25,499 | 2% |
| $25,499 - $40,245 | 4% |
| $40,245 - $55,866 | 6% |
| $55,866 - $70,606 | 8% |
| $70,606 - $360,659 | 9.3% |
| $360,659 - $432,787 | 10.3% |
| $432,787 - $721,314 | 11.3% |
| $721,314 - $1,000,000 | 12.3% |
| Over $1,000,000 | 13.3% |
Source: California Franchise Tax Board. Brackets shown are for single filers; married-filing-jointly thresholds are wider.
What a California Resident Actually Pays: A Worked Example
Your effective tax rate is almost always lower than your top bracket. Here is how the math works for a single filer earning $65,000.
Where California Stands Among the 50 States
California's top rate of 13.3% ranks #1 of the 41 states that tax wages -- among the ten highest in the country. The median top rate across those 41 states is 5.2%, so California is above the middle of the pack. It is one of 27 states with a graduated schedule, using 10 brackets; the top rate starts at $1,000,000 of taxable income, and the lowest bracket ends at $10,756.
On sales tax the picture is similar: California's combined state and average local rate of 8.82% ranks #7 of 50, against a national median of 7.00%.
California State Tax at Five Income Levels (2025, single filer)
| Taxable income | California tax | Effective rate | Marginal rate |
|---|---|---|---|
| $40,000 | $982 | 2.46% | 4% |
| $65,000 | $2,660 | 4.09% | 8% |
| $100,000 | $5,842 | 5.84% | 9.3% |
| $150,000 | $10,492 | 6.99% | 9.3% |
| $250,000 | $19,792 | 7.92% | 9.3% |
Brackets applied directly to the taxable-income figure shown, before California-specific deductions, exemptions, or credits. Federal tax is separate and comes on top of every row.
California vs. Its Neighbors on $75,000 of Taxable Income
A California resident with $75,000 of taxable income pays about $3,517 in state income tax. Of California's 3 neighboring states, 2 would tax that income less and 1 would tax it more.
Frequently Asked Questions -- California Income Tax
Does California have a state income tax?
Yes. California imposes a state income tax with a top marginal rate of 13.3%. This is separate from your federal income tax obligation.
What is the California income tax rate for 2025?
California uses a graduated income tax system with rates from 1% to 13.3%. Only the income within each bracket is taxed at that bracket's rate -- not your entire income.
Do I have to file a California state tax return?
Most full-year California residents with income above the state filing threshold must file a state return. Check the California Franchise Tax Board for current thresholds and requirements.
How accurate is this estimate?
The federal figure uses the official IRS 2025 brackets and standard deduction. The California figure applies the 2025 single-filer rate schedule to the same taxable income; it does not model California-specific deductions, exemptions, credits, or local income taxes, so treat it as a planning number and confirm with the California Franchise Tax Board or a tax professional before filing.
How does California compare with nearby states?
On $75,000 of taxable income, California collects about $3,517. Nevada collects $0, Arizona collects $1,875, Oregon collects $6,254. See the comparison table above.
Where does California rank on state income tax?
California's top rate of 13.3% ranks #1 of the 41 states with an income tax, against a median top rate of 5.2%. Its combined sales tax of 8.82% ranks #7 of 50.
Does this calculator include federal income tax?
Yes. It estimates your 2025 federal income tax using the official IRS 2025 brackets, then applies the California rate schedule to the same taxable income and shows both figures plus the combined total.
Where can I find official California tax forms?
Official forms, instructions, and filing guidance are available at the California Franchise Tax Board.
What is the sales tax rate in California?
California's combined state and average local sales tax rate is 8.82%. This is separate from income tax and applies to most retail purchases -- use our sales tax calculator to check a specific purchase.
When are California 2025 state taxes due?
2025 taxes are generally filed in 2026. The California filing deadline is April 15, 2026, the same as the federal deadline.
Understanding Your California Tax Estimate
Your results combine two separate bills: federal tax owed to the IRS, and California state tax owed to the California Franchise Tax Board. The state return is filed separately from your federal Form 1040, with a state filing deadline of April 15. For the mechanics of how bracket math actually works -- why your effective rate is almost always lower than your top bracket -- see our marginal vs. effective tax rate guide.
Lowering Your California Bill
Pre-tax retirement contributions reduce your federal and California taxable income in the same move -- see our 401(k) contribution limits and HSA limits guides for the current caps. Beyond that, California-specific credits and deductions that don't exist at the federal level are listed at the California Franchise Tax Board -- worth checking, since these are easy to miss if you only look at federal guidance.
Combined Sales + Income Tax Picture
California's combined state-plus-average-local sales tax rate is 8.82%. If you're self-employed, that's an added layer on top of income tax -- our self-employment tax calculator covers the SE-specific piece separately.
Disclaimer: Estimates for educational purposes only. State tax results are approximations based on published bracket data and do not account for all deductions, credits, exemptions, local taxes, or individual situations. Not tax, legal, or financial advice. Consult the California Franchise Tax Board or a qualified tax professional for guidance specific to your situation.