California Income Tax Calculator 2026

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.