Finance calculators

California Tax Calculator

Updated Sep 11, 2026 By Infinity Calculator
Rate Formulas Sources

Enter a gross income greater than $0.
Residency Status
California has no municipal personal income tax — local tax shows $0.
Deduction Type
Federal: Child Tax Credit each; CA dep. exemption credit auto-applied — $0 fed. credits

Your 2024 California Tax Estimate

Estimated California State Tax
$0.00
Total Tax Burden
$0.00
Annual Take-Home Pay
$0.00

Tax Breakdown

Rate shown:
Tax Type Amount Marginal Rate
† Marginal rate is not meaningful for FICA/SDI/AMT — the effective rate (tax ÷ gross income) is shown instead.
Step-by-Step Solution

Where Your Gross Income Goes

Segment Amount % of Gross

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% tax on taxable income over $1 million), 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.

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 federal Child Tax Credit, worth up to $2,200 per qualifying child.1 Each dependent also adds a California dependent exemption credit, which is $475 for 2025.2 Both credits shrink at higher incomes.

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. California does not conform to the federal deduction for HSA contributions.3

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%.4 If your taxable income is over $1 million, you also pay the 1% Behavioral Health Services Tax on the amount above $1,000,000.5 That brings the top rate to 13.3%, the highest top state income tax rate in the country.6

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 the calculator works out the tax you owe. 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.7

Federal income tax is calculated using IRS tax brackets. The calculator subtracts your deductions and applies the Child Tax Credit and any other credits you enter. The full Child Tax Credit is available when income is not more than $200,000 ($400,000 for joint filers), and a partial credit may apply above that.1

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).8

California AMT (Alternative Minimum Tax) is checked automatically. If your income is high enough, the calculator compares your regular tax before credits with a tentative minimum tax figured at the 7% AMT rate, and adds the difference if AMT applies.9

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.

Formulas used

Adjusted Gross Income (AGI)
\text{AGI} = \text{Gross Income} - \text{401(k)} - \text{IRA}
Federal Taxable Income
\text{Fed Taxable} = \max\!\left(0,\; \text{AGI} - \text{Other Pre-Tax} - \text{Fed Deduction}\right)
California Taxable Income
\text{CA Taxable} = \max\!\left(0,\; \text{AGI} - \text{CA Deduction}\right)
Federal Income Tax (after credits) 17
\text{Fed Tax} = \left(\sum_{i} \left(\min(\text{income},\, b_{i+1}) - b_{i}\right) \times r_{i} - \text{Credits} - \text{CTC}\right)^{+}, \quad \text{CTC} = \left(n_{\text{dep}} \times C_{\text{child}} - \text{\$50} \times \left\lceil \frac{(\text{AGI} - \theta)^{+}}{\text{\$1,000}} \right\rceil\right)^{+}
FICA (Social Security + Medicare) 8
\text{FICA} = \min(\text{Gross},\, \text{SS Base}) \times 6.2\% \;+\; \text{Gross} \times 1.45\% \;+\; \left(\text{Gross} - \text{Threshold}\right)^{+} \times 0.9\%
California State Income Tax 5
\text{CA Tax} = \left(\left(T_{\text{brackets}} + \left(\text{CA Taxable} - \text{\$1,000,000}\right)^{+} \times 1\%\right) \times R_{\text{CA}} - C_{\text{exempt}} \times R_{\text{CA}}\right)^{+}, \quad C_{\text{exempt}} = \left(C_{\text{personal}} - n_{p}\,\delta\right)^{+} + n_{\text{dep}} \left(C_{\text{dep}} - \delta\right)^{+}, \quad \delta = \text{\$6} \times \left\lceil \frac{(\text{AGI} - \theta)^{+}}{\text{\$2,500}} \right\rceil
Total Tax Burden
\text{Total Tax} = \text{Fed Tax} + \text{FICA} + \text{CA Tax} + \text{SDI} + \text{CA AMT} + \text{Local Tax}
Annual Take-Home Pay
\text{Take-Home} = \text{Gross Income} - \text{Total Tax} - \text{401(k)} - \text{IRA} - \text{Other Pre-Tax}

Frequently asked questions

What is the California state income tax rate?

California has nine tax brackets with rates from 1% to 12.3%.4 If your taxable income is over $1 million, you also pay the 1% Behavioral Health Services Tax on the amount above $1,000,000.5 That brings the top rate to 13.3%, the highest top state income tax rate in the U.S.6

Does California have a local or city income tax?

No. California does not have any local or city income tax. No matter which city you live in, your local income tax will be $0. You only pay state income tax to California, not to your city or county.

What is the California standard deduction?

The California standard deduction depends on your filing status and tax year. For 2024, it is $5,540 for Single or Married Filing Separately and $11,080 for Married Filing Jointly or Head of Household.10 For 2025, it is $5,706 and $11,412.11 These amounts are much lower than the federal standard deduction.

What is California SDI and do I have to pay it?

SDI stands for State Disability Insurance. It is a payroll tax that most California workers pay. The rate changes each year. For 2024, it is 1.1% of your wages with no cap.7 For 2025, it is 1.2% with no cap.7 Your employer takes it out of your paycheck automatically.

What is the Mental Health Services Act surcharge?

The Mental Health Services Act added a 1% tax on California taxable income over $1 million. On 2025 returns it is called the Behavioral Health Services Tax, and it equals 1% of taxable income above $1,000,000.5 It applies to all filing statuses. This tax is added on top of the regular 12.3% top bracket rate, making the top California rate 13.3%.6

How is California tax different from federal tax?

California tax is a separate state tax you pay in addition to federal tax. California has its own brackets (1% to 12.3%), its own standard deduction (much smaller than the federal one), and its own credits.4 Federal tax uses IRS brackets (10% to 37%) and a larger standard deduction.12 You pay both taxes on your income.

Does a 401(k) contribution reduce my California taxes?

Yes. Traditional 401(k) and 403(b) contributions lower your adjusted gross income. This reduces both your federal and California taxable income. That means you pay less in state and federal taxes for the year you make the contribution.

What is the California AMT?

AMT stands for Alternative Minimum Tax. California calculates a tentative minimum tax at a flat 7% rate on your income above an exemption amount.9 If that amount is higher than your regular California tax before credits, you pay the difference on top of your regular tax.9 Most people with moderate incomes do not owe AMT.

How do I calculate California tax if I only lived there part of the year?

Select "Part-Year / Non-Resident" in the residency field. Then enter your California-source income. The calculator divides your California income by your total income to get a ratio. It only taxes the California portion of your income at state rates.

Do other pre-tax deductions like HSA contributions reduce California tax?

No. In this calculator, other pre-tax deductions only reduce your federal taxable income. They do not lower your California taxable income. This is because California does not allow all the same pre-tax deductions that the IRS does. For example, federal law allows a deduction for HSA contributions, but California law does not conform.3

What is the California personal exemption credit?

California gives a small personal exemption credit that reduces your state tax. For 2025, it is $153 for a Single filer.2 It is $306 for Married Filing Jointly.13 For 2024, it was $149 for a Single filer.14 The credit is reduced when federal AGI is more than $252,203 for Single filers or $504,411 for joint filers in 2025.5 This credit is subtracted directly from your California tax bill.

Why is my California standard deduction so much smaller than the federal one?

California sets its own deduction amounts, and they have always been much lower than federal amounts. For example, in 2024 the federal standard deduction for Single filers was $14,600.15 The California standard deduction for Single filers was only $5,540.14 This means more of your income is taxable at the state level.

What filing status should I choose?

Choose Single if you are not married. Choose Married Filing Jointly if you are married and filing one return together. Choose Married Filing Separately if you are married but filing your own return. Choose Head of Household if you are unmarried and pay more than half the cost of keeping up a home for a qualifying person.16

Does California tax Social Security benefits?

No. California does not tax Social Security benefits.3 If Social Security is your only income, you will not owe California state income tax on it.

Sources

  1. Child Tax Credit. Internal Revenue Service. Accessed September 11, 2026.
  2. 2025 California 2EZ Table, Single. California Franchise Tax Board. 2025. Accessed September 11, 2026.
  3. 2025 Instructions for Schedule CA (540). California Franchise Tax Board. 2025. Accessed September 11, 2026.
  4. 2025 California Tax Rate Schedules. California Franchise Tax Board. 2025;Schedules X, Y and Z. Accessed September 11, 2026.
  5. 2025 Instructions for Form 540, California Resident Income Tax Return. California Franchise Tax Board. 2025;Line 32, Exemption Credits; Line 62, Behavioral Health Services Tax. Accessed September 11, 2026.
  6. Yushkov A, Loughead K. State Individual Income Tax Rates and Brackets, 2025. Tax Foundation. 2025. Accessed September 11, 2026.
  7. Contribution Rates, Withholding Schedules, and Meals and Lodging Values. California Employment Development Department. SDI Rate. Accessed September 11, 2026.
  8. Topic no. 751, Social Security and Medicare withholding rates. Internal Revenue Service. Accessed September 11, 2026.
  9. 2025 Schedule P (540), Alternative Minimum Tax and Credit Limitations - Residents. California Franchise Tax Board. 2025;Part II, lines 24 to 26. Accessed September 11, 2026.
  10. 2024 Personal Income Tax Booklet, California Forms & Instructions 540. California Franchise Tax Board. 2024;Line 18, Standard deduction. Accessed September 11, 2026.
  11. Deductions. California Franchise Tax Board. 2025 Standard deduction amounts. Accessed September 11, 2026.
  12. IRS releases tax inflation adjustments for tax year 2025. Internal Revenue Service. 2024;IR-2024-273. Accessed September 11, 2026.
  13. 2025 California 2EZ Table, Married/RDP Filing Jointly or Qualifying Surviving Spouse/RDP. California Franchise Tax Board. 2025. Accessed September 11, 2026.
  14. 2024 California 2EZ Table, Single. California Franchise Tax Board. 2024. Accessed September 11, 2026.
  15. IRS provides tax inflation adjustments for tax year 2024. Internal Revenue Service. 2023;IR-2023-208. Accessed September 11, 2026.
  16. Publication 501, Dependents, Standard Deduction, and Filing Information. Internal Revenue Service. Head of Household. Accessed September 11, 2026.
  17. 26 U.S. Code § 24 — Child tax credit. Legal Information Institute, Cornell Law School. § 24(b)(1) and (h)(3). Accessed September 11, 2026.

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