California Paycheck Deductions Explained
Understand common California paycheck deductions, including federal withholding, California income tax, SDI, Social Security and Medicare.
California paychecks can include more withholding layers than paychecks in states without individual income tax. In addition to federal withholding and FICA payroll taxes, California employees may see state income-tax withholding and State Disability Insurance deductions.
Federal deductions on a California paycheck
Federal income-tax withholding is generally based on taxable wages and W-4 elections. Social Security and Medicare are separate payroll taxes and can apply regardless of California filing status.
California state income-tax withholding
California uses its own withholding system and employee withholding certificate. State withholding is not simply copied from the federal W-4, which is why entering California-specific settings can improve a paycheck estimate.
California SDI
California State Disability Insurance can appear as a payroll deduction on covered wages. The applicable contribution rules can change by tax year, so current payroll guidance matters when estimating take-home pay.
Why California take-home pay varies
Salary, filing setup, allowances or withholding elections, pre-tax benefits and pay frequency can all change the check. Bonuses and supplemental wages may also be handled differently from regular wages.
Use the California paycheck calculator
The California paycheck calculator combines federal withholding, Social Security, Medicare, California withholding inputs and the California payroll components implemented in PaycheckRadar. See the methodology for source and calculation notes.