How this calculator works
Like the Texas calculator, this estimates federal tax and FICA the same way — California doesn’t change those. On top of that, it computes California’s own state income tax (using CA’s own standard deduction and bracket schedule, not the federal ones) and CA SDI, a 1.3% payroll tax with no wage cap that funds state disability and paid family leave benefits.
The formula
(federal tax, FICA, and net-pay assembly are identical to the Texas calculator)
caTaxableIncome = max(0, wagesAfterPretax − caStandardDeduction)
caIncomeTax = 2026 CA bracket schedule applied to caTaxableIncome
(1% / 2% / 4% / 6% / 8% / 9.3% / 10.3% / 11.3% / 12.3%,
+1% Mental Health Services Tax above $1,000,000 taxable income,
for every filing status)
caSdi = 1.3% × ficaWages (same wage base as FICA — no cap)
stateTax = caIncomeTax + caSdi
Worked example
A single filer earning $60,000/year, paid biweekly, with no 401(k) or extra deductions:
- FICA: $4,590.00/year (same as any state)
- Federal tax: $5,020.00/year (same as any state)
- CA income tax: taxable income $60,000 − $5,706 standard deduction = $54,294 → $1,792.53/year (four brackets: 1%, 2%, 4%, 6%)
- CA SDI: 1.3% × $60,000 = $780.00/year
- Net pay: $60,000 − $4,590 − $5,020 − $1,792.53 − $780 = $47,817.47/year, or $1,839.13 per biweekly paycheck
We cross-checked this against SmartAsset’s California Paycheck Calculator for the same inputs (accessed 2026-08-23): it showed a gross paycheck of $2,308, combined FICA+SDI of $200/period (8.65%), and take-home of $1,842/period — within about $3/period (0.2%) of our figures. SmartAsset’s FICA+SDI percentage implies roughly a 1.0% SDI rate, while this calculator uses the verified, currently-in-effect 2026 rate of 1.3% — that difference, plus the same annual-liability-vs-per-paycheck-withholding gap described on our Texas calculator, accounts for the small remainder.
Frequently asked questions (FAQ)
Why is my California take-home pay so much lower than in a no-tax state like Texas?
California has its own progressive state income tax (1% to 13.3%) on top of federal tax and FICA, plus a 1.3% SDI payroll tax with no wage cap. A no-state-income-tax state like Texas skips that state income tax line entirely — federal tax and FICA are the same regardless of state.
What is SDI, and why doesn't it have a wage cap?
SDI (State Disability Insurance) funds California's short-term disability and paid family leave programs. It used to stop once your wages passed an annual cap, but as of 2024 California removed that cap — every dollar of wages is now subject to the 1.3% SDI rate (2026), no matter how high your income.
Are tips and overtime tax-free in California?
No. The federal 2025-2028 "no tax on tips" and "no tax on overtime" deductions only reduce your federal taxable income — California has not adopted matching state deductions, so tips and overtime remain fully taxable on your California return.
What are California's 2026 tax brackets?
Nine brackets from 1% to 12.3%, plus a 1% Mental Health Services Tax on taxable income over $1,000,000 (for every filing status), for a 13.3% top combined rate. The dollar thresholds are roughly double for joint filers compared to single filers — except the $1,000,000 Mental Health Services Tax threshold, which stays the same for everyone.
What is the Mental Health Services Tax, and who pays it?
It's a 1% surtax (from Prop 63) on taxable income over $1,000,000, funding county mental health services. It applies at exactly $1,000,000 regardless of filing status — for joint filers, this means the surtax can kick in before their regular top bracket would otherwise double relative to single filers.