Questions this estimate can answer
- You need a California-only state income-tax estimate.
- You want taxable income, tax, deduction used, and effective rate together.
- You are comparing filing-status or deduction scenarios for 2025.
2025 California estimate
California State Income Tax Calculator — 2025 Rates
Estimate 2025 California taxable income and state income tax using current FTB rate schedules and standard deductions.
Start calculating ↓Example values are already filled in. Replace them with yours.
Start hereChange any value to update the result.
The example shows the required inputs. Replace only the values that apply to you.
Saved only on this devicePlanning estimate
Your inputs
Enter the details you haveWe apply the 2025 California brackets and standard deduction automatically.
Use itemized deductionsOptional
Estimated result
Estimated California tax$4,743
California taxable income$89,294
Deduction used$5,706
Effective state rate5.0%
2025 California state estimate only. Exemption credits, surtaxes, AMT and income adjustments are excluded.
Inputs stay in this browser and are never uploaded.
Checks you still need to make
- A federal, payroll-withholding, refund, or combined federal-and-state calculation.
- Part-year or nonresident sourcing, credits, AMT, or the mental-health-services tax.
- A tax year other than the displayed 2025 California schedule.
Related questions
When to use this calculator
See a worked example for the situation closest to yours.
California progressive tax
Formula
California taxable income = entered California income − the greater of the 2025 state standard or entered itemized deduction; progressive Schedule X, Y or Z rates then apply.
This estimates California state income tax only. Federal tax is separate.
The result excludes exemption credits, mental-health-services tax, alternative minimum tax, credits and California/federal income adjustments.
Assumptions and limits
- Full-year California resident
- Income entered is California income before deduction
- 2025 tax year
- No credits or surtaxes
Single California filer with $95,000 before state deductions
- Start with $95,000 of California income before the state deduction.
- Apply the 2025 California standard deduction automatically when entered itemized deductions are lower.
- Apply the 2025 Schedule X brackets progressively to the remaining California taxable income.
Result: The result shows California state income tax, taxable income, deduction used, and the effective state rate. Federal tax and omitted California credits remain separate.
Common mistakes that change the result
- Using the federal standard deduction in a California state calculation.
- Applying the highest California bracket reached to every dollar of income.
- Treating gross pay as California taxable income after every adjustment and credit.
- Adding federal and California tax without keeping their deductions and tax bases separate.
Planning estimate, not tax advice
Tax law depends on facts this tool cannot collect. Do not use the result as the sole basis for filing, withholding or payment decisions.
Frequently asked questions
Why is the California standard deduction lower than the federal deduction?
California publishes its own deduction amounts. For 2025 they are $5,706 for single/separate and $11,412 for joint, head-of-household or qualifying surviving spouse.
Does this include federal income tax?
No. Use the federal income tax calculator separately.
Related calculators
Calculate the next number
Income2025 & 2026
2025–2026 Federal Income Tax & Refund Calculator
Estimate federal income tax, then compare it with withholding and payments to see a projected refund or amount owed.
Investment2026
2026 Capital Gains Tax Calculator
Enter sale price, purchase cost and other income; TaxMathKit calculates the gain and estimates 2026 short- or long-term federal tax automatically.
Freelance2026
2026 1099 Tax Calculator — Per-Payment Reserve & Quarterly Tax
Plan a 1099 tax reserve from business profit, W-2 withholding and a typical payment—then compare the annual and quarterly federal estimate.