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.