Introduction
This free California tax calculator shows you how much state, federal, and payroll tax you owe based on your income. Enter your gross income, filing status, and tax year, and the tool does the rest. It covers California state income tax (all nine brackets plus the 1% Mental Health Services Act surcharge), federal income tax, FICA (Social Security and Medicare), California SDI, and even the California AMT. You can also add 401(k) and IRA contributions, dependents, itemized deductions, and tax credits to get a more accurate result.
The calculator gives you a full tax breakdown table, a step-by-step solution with the math shown, and a chart of where your money goes. It supports tax years 2021 through 2025 and all four filing statuses: Single, Married Filing Jointly, Married Filing Separately, and Head of Household. Part-year residents and non-residents can enter their California-source income to see how the apportionment ratio affects their state tax. Use this tool to plan ahead, compare tax years, or simply find out your estimated take-home pay in California.
How to Use Our California Tax Calculator
Enter your income and filing details below to get a full estimate of your California state tax, federal tax, FICA, and take-home pay for any tax year from 2021 to 2025.
Tax Year: Pick the tax year you want to calculate. Choose from 2021 through 2025.
Filing Status: Select how you file your taxes. Options are Single, Married Filing Jointly, Married Filing Separately, or Head of Household.
Gross Household Income: Type your total income before any taxes or deductions are taken out. If you need to convert an hourly wage to an annual figure first, try our hourly to salary calculator.
Residency Status: Choose Full-Year Resident if you lived in California all year. Choose Part-Year or Non-Resident if you did not.
California-Source Income: If you picked Part-Year or Non-Resident, enter the amount of income you earned from California sources. This is used to figure out how much of your income California can tax.
Location: Type your city and state. California does not have a local income tax, so this will show as $0.
Deduction Type: Pick Standard to use the default deduction amount, or pick Itemized if you plan to list your own deductions.
Itemized Deduction Amount: If you chose Itemized, enter the total dollar amount of your itemized deductions. This amount applies to both your federal and California tax calculations.
Dependents: Use the plus and minus buttons to set how many dependents you claim. Each dependent adds a $2,000 federal Child Tax Credit and a California dependent exemption credit.
401(k) / 403(b) Contribution: Enter how much you put into a 401(k) or 403(b) plan. This amount lowers your taxable income for both federal and California taxes.
Traditional IRA Contribution: Enter how much you put into a traditional IRA. Like a 401(k), this lowers your taxable income.
Federal Tax Credits: Enter any other federal tax credits you qualify for. Credits are subtracted directly from your federal tax bill.
Other Pre-Tax Deductions: Enter any other pre-tax deductions, such as HSA contributions. These reduce your federal taxable income only and do not lower your California tax.
Click Calculate to see your results. The tool will show your estimated California state tax, total tax burden, and annual take-home pay. It also gives you a step-by-step breakdown, a tax summary table, and a chart that shows where every dollar of your income goes.
How California State Income Tax Works
California has its own income tax that you pay on top of federal taxes. The state uses a progressive tax system with nine tax brackets. This means the more money you earn, the higher rate you pay on each extra dollar. Rates start at 1% and go up to 12.3%. If you earn over $1 million, you also pay an extra 1% Mental Health Services Act surcharge, bringing the top rate to 13.3% — the highest state income tax rate in the country.
What This California Tax Calculator Does
This calculator estimates your total California state tax, federal tax, FICA payroll taxes, and take-home pay all in one place. You enter your gross income, filing status, and tax year, and it does the math for you. It covers tax years 2021 through 2025 and supports all four filing statuses: Single, Married Filing Jointly, Married Filing Separately, and Head of Household.
Taxes Included in Your Estimate
California state income tax is the main result. The calculator applies the correct tax brackets for your filing status and tax year. It also factors in the standard or itemized deduction, the California personal exemption credit, and dependent exemption credits.
California SDI (State Disability Insurance) is a payroll tax most workers pay. The rate and wage ceiling change each year. Starting in 2024, there is no wage ceiling, so all wages are subject to SDI. To see how SDI and other deductions affect your actual paycheck, try the California paycheck calculator.
Federal income tax is calculated using IRS tax brackets. The calculator subtracts your deductions and applies the Child Tax Credit ($2,000 per dependent) and any other credits you enter. You can also check your effective tax rate to see what percentage of your income actually goes to federal taxes.
FICA taxes include Social Security (6.2% up to the wage base) and Medicare (1.45% on all wages, plus 0.9% on high earners).
California AMT (Alternative Minimum Tax) is checked automatically. If your income is high enough, the calculator compares regular tax to the 7% AMT rate and adds the difference if AMT applies.
Part-Year and Non-Residents
If you lived in California for only part of the year or earned income there as a non-resident, you can enter your California-source income. The calculator will apply an apportionment ratio so you only pay California tax on the income you earned in the state.
Deductions and Retirement Contributions
You can choose between the California standard deduction or enter your own itemized amount. The calculator also lets you enter 401(k) and Traditional IRA contributions, which reduce your adjusted gross income before taxes are calculated. It will warn you if your contributions exceed the annual IRS limits. To plan your long-term savings strategy alongside your tax picture, see our retirement calculator or Roth IRA calculator.