This California income tax calculator uses 2025 rules for a single, full-year resident under 65 with no dependants and ordinary employment income. It estimates federal and state income tax separately. Only the income within a bracket is taxed at that bracket’s rate.
Calculate your California income tax
US$18,503.98 combined income tax at US$100,000.00 income.
Open full estimate, formula and receipt →2025 California tax brackets
| Income portion | Regional rate |
|---|---|
| US$0.00–US$11,079.00 | 1.00% |
| US$11,079.00–US$26,264.00 | 2.00% |
| US$26,264.00–US$41,452.00 | 4.00% |
| US$41,452.00–US$57,542.00 | 6.00% |
| US$57,542.00–US$72,724.00 | 8.00% |
| US$72,724.00–US$371,479.00 | 9.30% |
| US$371,479.00–US$445,771.00 | 10.30% |
| US$445,771.00–US$742,953.00 | 11.30% |
| Over US$742,953.00 | 12.30% |
California’s model includes the standard deduction, personal credit, credit phase-out and an additional 1% on taxable income above US$1 million. Itemized deductions and other credits are excluded.
Federal and regional examples
| Annual income | Federal tax | Regional tax | Combined tax |
|---|---|---|---|
| US$40,000.00 | US$2,671.50 | US$582.69 | US$3,254.19 |
| US$60,000.00 | US$5,071.50 | US$1,639.53 | US$6,711.03 |
| US$100,000.00 | US$13,449.00 | US$5,054.98 | US$18,503.98 |
| US$150,000.00 | US$25,067.00 | US$9,704.98 | US$34,771.98 |
How this estimate works
Federal and regional schedules are calculated independently. Income is treated as adjusted gross income before the model’s standard deductions and exemptions. Regional taxable income may differ from federal taxable income. The calculator adds those two estimates; it does not apply the highest marginal rate to your entire salary.
What is excluded?
Payroll deductions, local taxes, dependants, investment income, self-employment rules and many individual credits or deductions are excluded. This includes FICA, city/county income tax and itemized deductions. Income remaining after these taxes is not an estimate of your actual paycheque. Low-income exclusions can materially affect the result.
Includes 1% tax above $1 million of taxable income and personal credit phase-out; other credits excluded.
These are continuous rate formulas. Official tax tables and whole-dollar rounding can produce small differences. Always check your own circumstances against the original rules.
Official sources and further reading
- Official California income-tax rules
- Calculation assumptions and data methodology
- Compare coverage across provinces and states
Tax year: 2025. Educational estimate; not personalised tax advice.