California Payroll & Tax 2026

California payroll is meaningfully heavier than the federal baseline, and the heaviness comes from four directions at once: progressive state income tax with top brackets that climb past 12 percent, mandatory State Disability Insurance (SDI) deducted from employees, employer-funded Unemployment Insurance (UI) and Employment Training Tax (ETT) administered by the California Employment Development Department (EDD), and aggressive local minimum wage rules in cities like San Francisco, Los Angeles, and Berkeley that override the state floor.

The mechanics are documented in EDD’s DE 44 California Employer’s Guide, which the state updates each calendar year. DE 44 is the practical equivalent of IRS Pub 15 (Circular E) for the federal side and explains withholding tables, deposit schedules (next-banking-day for large depositors, monthly or quarterly for smaller payrolls), the wage base for UI and ETT, and the SDI rate the EDD sets each year. For 2026, employers should pull the current PDF directly from edd.ca.gov rather than rely on third-party summaries.

• Wage statement detail (Labor Code §226): California requires far more line items on every pay stub than federal law — gross wages, hours worked, all deductions, net wages, pay period dates, employer legal name and address, employee name and last four of SSN, and rate(s) of pay. Missing items create per-employee penalties.
• Final wage timing: Quit-with-notice means final pay on the last day worked; an involuntary discharge means final pay immediately. Late final pay triggers waiting-time penalties of up to 30 days of wages.
• SDI vs DI/PFL: California funds Paid Family Leave through the same SDI deduction. The benefit and the deduction are connected; you do not opt employees out.
• Local minimum wage: San Francisco, Los Angeles (city and county), West Hollywood, Oakland, Berkeley, Emeryville, Mountain View, San Jose, and Pasadena each have their own minimum wage schedules updated each July. Employer payroll must follow the higher of federal, state, and local.
• Cal/OSHA reporting and workers’ comp: All California employers must carry workers’ compensation insurance from day one of having any employee, with no “minimum size” exemption.

The order of operations on a California paycheck looks like this. Start with gross wages for the pay period. Apply pre-tax deductions in this order: Section 125 cafeteria-plan medical, dental, and vision premiums; HSA contributions (federal pre-tax but California still taxes HSA contributions for state income tax); Section 401(k) and other qualified retirement plan deferrals; and qualified transit and parking benefits up to the IRS Section 132(f) monthly limit.

From the post-pre-tax wage figure, calculate federal income tax withholding using the Form W-4 method in IRS Pub 15-T; then Social Security at 6.2 percent up to the 2026 SSA wage base; then Medicare at 1.45 percent with no cap; then Additional Medicare at 0.9 percent above the $200,000 single-paycheck threshold; then California income tax withholding using EDD’s tables in DE 44; then California SDI; then any post-tax deductions like Roth 401(k), garnishments, or after-tax benefits.

The employer side stacks separately: matching Social Security and Medicare; federal FUTA at 0.6 percent net of the SUTA credit on the first $7,000 of wages per employee per year; California UI on the state wage base; ETT on the first $7,000 (small flat rate); and any local payroll taxes such as San Francisco’s gross-receipts and homelessness gross-receipts taxes for businesses with San Francisco payroll above the city threshold.

Three patterns dominate the inbound questions on PayrollCalculator.us about California specifically. First, employers calculating overtime on the federal weekly-only basis when California also requires daily overtime after 8 hours and double-time after 12 hours. Second, employers treating SDI as optional or trying to opt out individual employees — only employers who maintain an approved Voluntary Plan can substitute, and the plan has to provide at least the same benefits as state SDI. Third, employers in cities with local minimum wages running payroll at the state minimum wage and not noticing until a wage-and-hour claim arrives.

Each of these is a documentation problem, not a math problem, but the math consequence is real: a California wage-and-hour judgment routinely doubles the underpayment via Labor Code waiting-time and pay-stub penalties, plus the employer pays the plaintiff’s attorney fees.

• California Payroll Calculator — the actual paycheck-level calculator for California.
• California state hub — deeper writeup of California withholding mechanics.
• 2026 state payroll tax comparison table — how California compares to other states.
• 2026 Federal payroll tax rates — FICA, FUTA, and bracket reference that stacks on top of California withholding.