California self-employment tax at a glance
California has the highest top marginal income tax rate in the country, including a 1% Mental Health Services Tax on taxable income above $1 million. California does not allow the federal QBI deduction and does not conform to all federal depreciation rules, so freelancers often owe more here than the federal picture suggests.
- State income tax: a progressive income tax from 1% to 13.3% (top marginal rate 13.3%)
- Standard deduction / exemption: $5,706 single, $11,412 married filing jointly
- Estimated payments: Form 540-ES
- Tax agency: Franchise Tax Board (FTB)
- Local income taxes: None for most residents
How California compares: take-home pay on 1099 income
The table compares a single filer with no business expenses in California with the average state income tax across the15 states we cover and with a state that has no income tax. Every column includes self-employment tax and federal income tax.
| Net profit | California state tax | Avg. state tax | Total tax | California take-home | No-income-tax state |
|---|---|---|---|---|---|
| $50,000 | $994 | $1,158 | $10,726 (21.5%) | $39,274 | $40,268 |
| $75,000 | $2,504 | $2,012 | $17,999 (24.0%) | $57,001 | $59,505 |
| $100,000 | $4,551 | $2,912 | $26,916 (26.9%) | $73,084 | $77,635 |
| $150,000 | $8,872 | $4,749 | $46,480 (31.0%) | $103,520 | $112,392 |
| $250,000 | $17,783 | $8,541 | $84,737 (33.9%) | $165,263 | $183,046 |
2026 California income tax brackets
| Single rate | Single taxable income | Married rate | Married filing jointly |
|---|---|---|---|
| 1% | $0 – $11,079 | 1% | $0 – $22,158 |
| 2% | $11,079 – $26,264 | 2% | $22,158 – $52,528 |
| 4% | $26,264 – $41,452 | 4% | $52,528 – $82,904 |
| 6% | $41,452 – $57,542 | 6% | $82,904 – $115,084 |
| 8% | $57,542 – $72,724 | 8% | $115,084 – $145,448 |
| 9.3% | $72,724 – $371,479 | 9.3% | $145,448 – $742,958 |
| 10.3% | $371,479 – $445,771 | 10.3% | $742,958 – $891,542 |
| 11.3% | $445,771 – $742,953 | 11.3% | $891,542 – $1,000,000 |
| 12.3% | $742,953 – $1,000,000 | 12.3% | $1,000,000 – $1,485,906 |
| 13.3% | Over $1,000,000 | 13.3% | Over $1,485,906 |
How this calculator works
- Net profit is your gross 1099 income minus deductible business expenses.
- Self-employment tax is 15.3% (12.4% Social Security up to the $184,500 wage base, plus 2.9% Medicare) on 92.35% of net profit.
- Federal income tax applies the 2026 brackets after subtracting half of your SE tax, the standard deduction and the 20% qualified business income (QBI) deduction.
- California tax applies California's brackets to your adjusted gross income after the state deduction or exemption.
- Quarterly payments divide the annual federal amount evenly and follow California's 30% / 40% / 0% / 30% schedule for state tax.
Not included: credits, itemized deductions, retirement contributions (SEP-IRA, Solo 401(k)), self-employed health insurance deduction and local taxes. Each of these usually lowers the bill, so treat the result as a conservative upper estimate.