How it works
The calculator takes your gross pay for one pay period, subtracts the pre-tax deductions you entered, and works out each tax on its own line. Federal income tax follows the percentage method in IRS Publication 15-T (2026), Federal Income Tax Withholding Methods, using your W-4 entries. Social Security is 6.2% of wages up to $184,500 for the year (SSA; IRS Publication 15 (2026)). Medicare is 1.45% of all wages, plus Additional Medicare Tax of 0.9% on wages over $200,000 (IRS Publication 15 (2026)).
California income tax follows Method B, the exact calculation method, in the EDD's California Employer's Guide (DE 44) (2026), which carries the California Withholding Schedules for the year. If your yearly wages fall below the low-income exemption amount for your DE 4 filing status ($18,896 for single filers), nothing is withheld. Otherwise the calculator subtracts any estimated deduction allowances and the California standard deduction ($5,706 for single filers), applies the graduated withholding rates from 1.1% to 14.63%, takes off $168.30 for each DE 4 allowance, and divides the result back into one paycheck.
California State Disability Insurance is withheld from employee wages at 1.3% for 2026 (EDD, 2026). It funds disability insurance and Paid Family Leave benefits, so there is no separate family leave line on a California paycheck. California has no city or county income tax on wages, so there is no local tax field on this page.
Not included: employer-paid taxes such as California unemployment insurance and the Employment Training Tax, which are not taken from your pay; after-tax deductions; garnishments; union dues; bonuses and other supplemental wages; and any refund or balance due when you file. Your employer's payroll may round differently or use the EDD's table method instead of the exact method.
Worked example
Take an $80,000 salary paid biweekly, filing single on both the W-4 and the DE 4, with one DE 4 allowance and no other deductions. Gross pay is $80,000 divided by 26 paychecks, which is $3,076.92. Federal withholding under Pub 15-T is $337.31, Social Security is $190.77 and Medicare is $44.62. For California, the calculator turns the paycheck into a yearly wage, checks it against the low-income exemption, subtracts the single standard deduction, applies the graduated rates, takes off the credit for one allowance, and divides by 26: California withholding is $135.21. SDI at 1.3% is $40.00. Take-home pay is $2,329.01 per paycheck, or $60,554.26 over the year.
Frequently asked questions
How much is taken out of a paycheck in California?
A California paycheck has five taxes withheld: federal income tax, Social Security, Medicare, California income tax and SDI. The total share depends on your pay, filing status and allowances; with the example above it comes to 24.3% of gross pay.
What is SDI on a California paycheck?
SDI is State Disability Insurance, an employee-paid payroll deduction run by the EDD. For 2026 it is 1.3% of wages (EDD, 2026), and it also pays for California Paid Family Leave benefits.
Is there a cap on California SDI?
Since 2024 California SDI has no taxable wage limit, so the 1.3% applies to all SDI-subject wages in the year (EDD, 2026).
What is the DE 4 and do I need it?
Form DE 4 is California's Employee's Withholding Allowance Certificate, used to set state withholding separately from the federal W-4. The calculator lets you enter DE 4 filing status and allowances apart from your W-4 entries.
Does California have local income tax?
No. California cities and counties do not withhold a local income tax from wages, so a paycheck shows only federal, FICA, state income tax and SDI lines.
Does the calculator handle California daily overtime?
California counts overtime by the day as well as by the week (California Department of Industrial Relations). Enter your hours as your pay stub shows them, or use the hourly paycheck calculator, which has a separate overtime field.