California uses graduated (progressive) state income tax brackets in 2026, so the rate rises with income much like the federal system. This calculator applies an estimated effective rate of about 6.0% for a middle income — on a $75,000 salary a single filer pays roughly $4,500 in state tax and nets about $57,093 a year (76.1% of gross). Your exact rate depends on where your income lands across the brackets.

Because California is a graduated-rate state, your top marginal rate is higher than your effective rate — you only pay the top rate on income above each threshold, not on your whole salary. Use the interactive calculator below and adjust the state-rate field to match your income for a precise figure. The 6.0% estimate here is above the 4.8% average across taxing states.

Remember that FICA is separate from income tax and is not affected by your state. Every worker pays 6.2% for Social Security on the first $184,500 of wages (the 2026 wage base) plus 1.45% for Medicare on all wages. Pre-tax 401(k) and HSA contributions lower your federal and state income tax but do not reduce FICA — a detail that trips up a lot of first-time budgeters.

California's paycheck math involves more than the income-tax brackets. The state also withholds State Disability Insurance (SDI) from wages, and the wage cap on SDI was removed in recent years — so high earners now pay it on every dollar. California's top marginal bracket is the highest in the nation, but the graduated structure means middle incomes pay far less than the headline rate; the effective rate used here reflects that. Housing costs, not taxes, are usually the bigger paycheck pressure in coastal metros.