California Income Tax Rates and Brackets Explained
California has one of the most progressive income tax systems in the United States. With nine tax brackets ranging from 1% to 12.3%, plus an additional 1% surcharge on income above $1,000,000, California's top marginal rate of 13.3% is the highest state income tax rate in the country.
Understanding how the system works helps you estimate your liability, plan contributions to retirement accounts, and avoid surprises when you file.
California's Nine Tax Brackets
California uses a progressive tax system, which means different portions of your income are taxed at different rates. You only pay the higher rate on income above each threshold — not on all your income.
Rates for Single Filers and Married/RDP Filing Separately
| Taxable Income | Rate |
|---|---|
| $0 – $10,756 | 1% |
| $10,757 – $25,499 | 2% |
| $25,500 – $40,245 | 4% |
| $40,246 – $55,866 | 6% |
| $55,867 – $70,606 | 8% |
| $70,607 – $360,659 | 9.3% |
| $360,660 – $432,787 | 10.3% |
| $432,788 – $721,314 | 11.3% |
| Over $721,314 | 12.3% |
Rates for Married/RDP Filing Jointly and Qualifying Surviving Spouse
| Taxable Income | Rate |
|---|---|
| $0 – $21,512 | 1% |
| $21,513 – $50,998 | 2% |
| $50,999 – $80,490 | 4% |
| $80,491 – $111,732 | 6% |
| $111,733 – $141,212 | 8% |
| $141,213 – $721,318 | 9.3% |
| $721,319 – $865,574 | 10.3% |
| $865,575 – $1,000,000 | 11.3% |
| Over $1,000,000 | 12.3% |
Rates for Head of Household
| Taxable Income | Rate |
|---|---|
| $0 – $21,527 | 1% |
| $21,528 – $51,000 | 2% |
| $51,001 – $65,744 | 4% |
| $65,745 – $81,364 | 6% |
| $81,365 – $96,107 | 8% |
| $96,108 – $490,493 | 9.3% |
| $490,494 – $588,593 | 10.3% |
| $588,594 – $1,000,000 | 11.3% |
| Over $1,000,000 | 12.3% |
The Mental Health Services Tax
In addition to the standard brackets, California imposes a 1% Mental Health Services Tax (MHST) on taxable income above $1,000,000. This brings the effective top marginal rate to 13.3%, one of the highest in the nation.
The MHST is not separately calculated on your tax return — it is built into the Rate Schedule. Funds go directly to county mental health programs under Proposition 63, which voters approved in 2004.
Standard Deductions
Your taxable income is your gross income minus deductions. If you claim the standard deduction, these are the 2025 amounts:
| Filing Status | Standard Deduction |
|---|---|
| Single | $5,202 |
| Married/RDP Filing Jointly | $10,404 |
| Head of Household | $10,726 |
| Married/RDP Filing Separately | $5,202 |
California's standard deduction is significantly lower than the federal standard deduction ($15,000 for single filers federally in 2025). This means more of your income is subject to California tax compared to federal tax.
Exemption Credits
After calculating your tax using the brackets, California allows you to subtract exemption credits directly from what you owe:
| Exemption | Credit Amount |
|---|---|
| Single | $144 |
| Married/RDP Filing Jointly | $288 |
| Head of Household | $144 |
| Each qualifying dependent | $433 |
| Blind or senior (65+) | $144 additional |
Credits reduce your final tax bill dollar-for-dollar, making them more powerful than deductions of the same size.
How California Tax Is Calculated: A Step-by-Step Example
Let's walk through how a single filer earning $80,000 gross income pays California taxes.
Step 1: Subtract the standard deduction $80,000 − $5,202 = $74,798 taxable income
Step 2: Apply the tax rate schedule
- 1% on $10,756 = $107.56
- 2% on ($25,499 − $10,756) = $294.86
- 4% on ($40,245 − $25,499) = $589.84
- 6% on ($55,866 − $40,245) = $937.26
- 8% on ($70,606 − $55,866) = $1,179.20
- 9.3% on ($74,798 − $70,606) = $390.05
- Subtotal: $3,498.77
Step 3: Subtract personal exemption credit $3,498.77 − $144 = $3,354.77 total California tax
Effective tax rate: $3,354.77 / $80,000 = 4.19%Marginal rate: 9.3% (the rate on the last dollar earned)
You can verify this calculation with our California Income Tax Calculator.
California vs. Federal Tax: Key Differences
Many taxpayers are surprised to learn that California and federal tax rules differ in several important ways.
No preferential rate for capital gains. California taxes long-term capital gains as ordinary income at the same bracket rates. The federal system taxes most long-term capital gains at 0%, 15%, or 20%.
No deduction for federal taxes paid. On your California return, you cannot deduct the federal income taxes you pay. The federal return, by contrast, does allow a deduction for certain state and local taxes (though it is capped at $10,000).
California does not conform to all federal deductions. Some federal deductions are not recognized in California, and some California-specific deductions have no federal equivalent.
No standard deduction for itemizers. If you itemize deductions on your California return, you cannot claim the standard deduction. However, some itemized deductions differ from federal rules.
Who Must File in California
You must file a California income tax return if your gross income (or adjusted gross income) exceeds the following thresholds:
| Filing Status | Under 65 | 65 or older |
|---|---|---|
| Single | $21,547 | $29,003 |
| Married/RDP Filing Jointly | $43,094 | $57,830 |
| Head of Household | $34,503 | $41,959 |
| Married/RDP Filing Separately | $21,547 | $21,547 |
Even if you are not required to file, you should file if California taxes were withheld from your wages, since you may be entitled to a refund.
California Income Tax Filing Deadlines
- April 15: Standard due date for California income tax returns
- October 15: Automatic six-month extension deadline (extension is for filing only — taxes owed must be paid by April 15)
- January 15: Fourth quarter estimated tax payment deadline for self-employed and others without withholding
Estimated Tax Payments
If you have income not subject to withholding — from self-employment, rental property, investments, or other sources — you may need to make quarterly estimated tax payments to the FTB to avoid underpayment penalties.
California's estimated tax payment due dates are:
- April 15 (first installment)
- June 15 (second installment)
- September 15 (third installment)
- January 15 of the following year (fourth installment)
How to Lower Your California Tax Bill
California residents have several options for reducing state income tax:
Maximize retirement account contributions. Contributions to a traditional 401(k) or IRA reduce your California taxable income in the same way they reduce your federal taxable income.
Contribute to an HSA. If you have a high-deductible health plan, Health Savings Account contributions are deductible in California (unlike some other states).
Deduct mortgage interest. California conforms to the federal mortgage interest deduction, allowing you to deduct interest on loans up to $750,000.
Claim California-specific credits. Beyond the standard exemption credits, California offers credits for dependent care expenses, the Earned Income Tax Credit (CalEITC), and the Young Child Tax Credit (YCTC), among others.
Understanding the FTB Tax Table vs. Rate Schedule
For taxable incomes of $100,000 or less, the FTB provides a pre-calculated tax table as part of the Form 540 instruction booklet. You simply find your income range and filing status to get your tax amount.
For taxable incomes over $100,000, you must use the Tax Rate Schedules and calculate your tax using the formula approach. This is also how most online calculators — including the California Income Tax Calculator on this site — work.
Filing Your California Return
Most California residents file using one of these options:
- Form 540 2EZ — Simplified form for single income sources, no itemized deductions, income under $100,000. See the 540 2EZ Calculator.
- Form 540 — Standard return for all individual taxpayers
- Form 540NR — For part-year and nonresident taxpayers
You can file online using the FTB's free CalFile program at ftb.ca.gov, or use any major tax software. California requires you to e-file if you prepare your return using tax software and you had an adjusted gross income of $100,000 or more.
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