California paycheck quick facts
| CA state income tax | 1% – 12.3% (progressive, 9 brackets) |
|---|---|
| Mental Health Services Tax | Additional 1% on income above $1M |
| CA SDI / PFL payroll tax | 1.2% on all wages (no cap, 2026) |
| CA standard deduction (2026 est.) | $5,700 single · $11,400 MFJ |
| CA personal exemption credit | $155 single · $310 MFJ |
| Local income tax | 0% (no city imposes one) |
| Federal income tax | 10% – 37% (2026 brackets) |
| FICA | 6.2% SS (cap $183,600) + 1.45% Medicare |
How your California paycheck works
California has the highest top marginal state income tax rate in the country (13.3% with the Mental Health Services Tax), and a 1.2% SDI tax with no wage cap since 2024. For most W-2 workers, that means your California paycheck has four layers of deduction: federal income tax, FICA, California income tax, and SDI.
The good news is that California mostly conforms to federal pre-tax treatment — your 401(k), HSA, FSA, and Section-125 health premiums reduce both federal and California taxable income. The bad news is that California taxes pre-tax 401(k) contributions on withdrawal too, so the savings are deferral rather than elimination.
FICA: Social Security and Medicare
Every W-2 employee in the US pays FICA, regardless of state. It has two parts:
- Social Security — 6.2% of wages up to the annual wage base ($183,600 for 2026). Earnings above the cap are not taxed for Social Security.
- Medicare — 1.45% of all wages with no cap. If you earn above $200,000 (single) or $250,000 (married filing jointly), an additional 0.9% Additional Medicare Tax applies to the portion above that threshold.
Your employer pays a matching 6.2% + 1.45% (the Additional Medicare is employee-only). Self-employed workers pay both halves — known as SECA: 12.4% Social Security + 2.9% Medicare.
Federal income tax brackets (2026)
The IRS uses a progressive bracket system. The first dollars you earn are taxed at 10%, the next at 12%, and so on up to 37% for high earners. Your marginal rate is the bracket your last dollar falls into; your effective rate is your total tax divided by gross — almost always lower than your marginal rate.
| Single / MFS | MFJ | Rate |
|---|---|---|
| $0 – $12,150 | $0 – $24,300 | 10% |
| $12,150 – $49,450 | $24,300 – $98,900 | 12% |
| $49,450 – $105,700 | $98,900 – $211,400 | 22% |
| $105,700 – $201,775 | $211,400 – $403,550 | 24% |
| $201,775 – $256,225 | $403,550 – $512,450 | 32% |
| $256,225 – $640,600 | $512,450 – $768,700 | 35% |
| $640,600+ | $768,700+ | 37% |
The 2026 standard deduction reduces taxable income before brackets apply: $15,750 single, $31,500 married filing jointly, $23,625 head of household.
Pre-tax deductions that reduce your taxable income
The biggest lever you control on your paycheck is your pre-tax contributions. These come out of your gross pay before federal income tax is calculated, so every dollar contributed saves you your marginal rate's worth of tax.
- Traditional 401(k) — up to $24,500 for 2026 ($31,000 if 50+). Reduces federal taxable income but not FICA wages.
- HSA (Health Savings Account) — up to $4,400 single / $8,750 family in 2026, only available with a high-deductible health plan. Triple-tax-advantaged: pre-tax going in, tax-free growth, tax-free withdrawals for medical expenses.
- FSA (Flexible Spending Account) — up to $3,400 for 2026. Use-it-or-lose-it (with limited rollover). Pre-tax for both federal income tax and FICA.
- Employer health, dental, and vision premiums — typically pre-tax via a Section 125 cafeteria plan.
How to use this calculator
- Pick Salary or Hourly.
- Enter your annual salary (or wage + hours per period).
- Choose your pay frequency — most US employers pay bi-weekly (26 paychecks/year) or semi-monthly (24 paychecks/year).
- Pick your filing status. It controls the brackets and standard deduction.
- If you have qualifying children under 17, enter the count to claim the Child Tax Credit (up to $2,000 per child).
- Expand Pre-tax deductions if you contribute to 401(k), HSA, FSA, or pay health premiums pre-tax.
The result updates instantly. The "Take-home per paycheck" figure is what should hit your bank account; the breakdown table shows exactly where the rest goes.
Sources
The federal tax constants used here come directly from the 2026 authoritative sources:
- IRS Revenue Procedure 2025-32 — 2026 inflation-adjusted brackets, standard deduction, Child Tax Credit amounts.
- SSA Cost-of-Living Adjustment announcement — 2026 Social Security wage base ($184,500).
- IRS Publication 15-T — Federal Income Tax Withholding Methods, including Additional Medicare Tax thresholds.
- IRS Form W-4 — 2020+ five-step withholding worksheet referenced for filing-status and dependent inputs.
Calculator is provided for estimation only and does not constitute tax advice. For tax filing, consult the IRS forms above or a licensed tax professional.
How CA SDI and PFL work
The 1.2% SDI tax funds two state programs: short-term State Disability Insurance (up to 52 weeks of partial wage replacement if you can't work due to illness or injury) and Paid Family Leave (8 weeks of bonding leave for new parents and caregivers). Since 2024, the wage cap was eliminated to pay for benefit increases that took effect in 2025.
SDI is collected on your paycheck and shown on your W-2 — make sure to claim it as a state tax deduction on Schedule A if you itemize federally.
How to increase your California take-home pay
- Max your 401(k) — saves federal + CA tax at your marginal rate. At 24% federal + 9.3% CA, that's a 33%+ marginal savings on every dollar contributed.
- HSA contributions are the most efficient dollars you can save — they skip federal tax, CA tax, AND FICA. Triple- tax-advantaged.
- Section-125 cafeteria plan for medical / dental / vision premiums — pre-tax for federal, CA, and FICA.
- Consider municipal bonds if you have taxable investments. CA-issued munis are exempt from both federal and California income tax.
- Consider relocating high-earning periods (RSU vests, bonuses) if you have flexibility — particularly if a no-tax state like Texas or Nevada is realistic for you. The savings can be substantial at six-figure incomes.
Compare California against other states: Texas, Florida, Washington, Pennsylvania.