California Income Tax Calculator 2026
Calculate your combined federal and California state income tax for 2026. See your federal brackets, California tax, effective rate, and take-home pay — all calculated privately in your browser.
How California Income Tax Calculator Works
Calculate your California income tax (up to 13.3%) plus federal tax. See combined brackets, effective rate, and take-home pay. and. Enter your values into the form above and the calculator processes them instantly in your browser — no data is sent to any server.
California Income Tax: Graduated Brackets Up to 13.3%
California uses a progressive income tax system with 10 brackets. Rates range from 1.0% to 13.3%, with higher income taxed at higher rates. California has the highest state income tax rate in the US at 13.3% on income over $1 million.
Like federal taxes, California's system is marginal — only the income within each bracket is taxed at that bracket's rate. Combined with federal taxes (10%–37%), California residents can face a total marginal rate of up to 50.3% on their highest dollars of income.
California Tax Brackets for 2026 (Single Filer)
The California income tax brackets for single filers are:
- 1.0% on income from $0 to $10,412
- 2.0% on income from $10,412 to $24,684
- 4.0% on income from $24,684 to $38,959
- 6.0% on income from $38,959 to $54,081
- 8.0% on income from $54,081 to $68,350
- 9.3% on income from $68,350 to $349,137
- 10.3% on income from $349,137 to $418,961
- 11.3% on income from $418,961 to $698,271
- 12.3% on income from $698,271 to $1,000,000
- 13.3% on income over $1,000,000
Your marginal rate is the rate on your last dollar of income. Your effective rate (total tax divided by total income) is always lower because of the progressive structure.
Tips to Lower Your California Tax
Maximize pre-tax retirement contributions to reduce both federal and California taxable income. The 2026 401(k) limit is $24,500 ($32,500 with catch-up for age 50+). If California conforms to federal deductions, your standard deduction and itemized expenses also reduce your state tax liability.
Income Tax Calculator California: 2026 SDI, Mental Health Surtax, and Filing Deadlines
Two California-specific items this calculator focuses on beyond the base brackets: (1) the State Disability Insurance (SDI) payroll tax — for 2026 the SDI rate is 1.2% on ALL wages with NO wage cap since the cap was permanently removed effective 2024 per SB 951. On a $200,000 salary that is $2,400 in SDI alone. (2) The 1% Mental Health Services Tax (MHST) surtax adds another 1% on taxable income above $1,000,000, making the true top marginal rate 14.4% (13.3% top bracket + 1% MHST). Per the California Franchise Tax Board personal filing page, the 2026 CA return is due April 15, 2027 (automatic 6-month extension to October 15, 2027, but tax owed must still be paid by April 15). Run the income tax calculator california output plus SDI plus MHST for the true full-year cost. Last updated: 2026-07-15.
Frequently Asked Questions
What is California's top income tax rate?
California's top marginal income tax rate is 13.3%. The state has 10 tax brackets with rates ranging from 1.0% to 13.3%.
How does California's income tax work?
California uses a progressive system where income is taxed at increasing rates through 10 brackets. Only income within each bracket is taxed at that bracket's rate.
How much total tax will I pay in California?
Your total tax includes both federal (10%-37%) and California state tax (up to 13.3%). Use this calculator to see the combined amount, effective rate, and take-home pay.
Does California conform to federal deductions?
Many states base their tax on federal adjusted gross income with state-specific modifications. Check California's specific rules for how deductions and exemptions apply.
How can I lower my California state income tax?
Maximize pre-tax retirement contributions (401k, IRA), use your HSA, and ensure you take all available deductions. These reduce both federal and state taxable income.
How accurate is this income tax calculator california for 2026?
This income tax calculator california uses the 2026 California Franchise Tax Board bracket schedule (1.0% through 13.3%) plus the 2026 federal brackets. It calculates the ordinary state income tax owed for wage and 1099 income. It does NOT automatically add the 1% Mental Health Services Tax surtax on income above $1M, nor the 1.2% SDI payroll tax (which is uncapped in 2026). Add SDI (1.2% × gross) and MHST (1% × income over $1M) manually if either applies. For AMT scenarios or large capital gains, use the FTB's own calculator or a tax pro.
When are California quarterly estimated tax payments due in 2026?
California uses a front-loaded schedule that differs from federal: Q1 (April 15, 2026) = 30% of annual estimate, Q2 (June 15, 2026) = 40%, Q3 (September 15, 2026) = 0%, Q4 (January 15, 2027) = 30%. Yes, Q3 is $0 unless your quarterly income spikes. Use the income tax calculator california to project your full-year liability, apply this 30/40/0/30 weighting, and pay via Form 540-ES through the FTB Web Pay portal. Safe-harbor for 2026: pay 100% of your 2025 CA tax (or 110% if your prior-year AGI exceeded $150K single / $75K MFS) to avoid the underpayment penalty.