California Paycheck Calculator 2025
California has one of the most complex paycheck withholding structures in the United States, combining federal income tax withholding with California state income tax, the California State Disability Insurance (SDI) contribution, Social Security, and Medicare. California SDI is funded entirely by employee contributions at a rate of 1.1% on all wages with no wage base cap, following the elimination of the taxable wage ceiling by Senate Bill 951 effective 1 January 2024. California income tax withholding uses an annualised method: the employer multiplies each period's gross wages by the number of pay periods in the year to get the annualised figure, subtracts the California standard deduction ($5,202 for single filers, $10,404 for married filing jointly in 2025), applies the graduated California tax brackets published by the Franchise Tax Board, subtracts applicable personal and dependent exemption credits, and then divides the result by the number of pay periods to arrive at the per-period withholding. California's top bracket reaches 12.3%, with a 1% Mental Health Services surcharge on income above $1,000,000. This calculator supports all pay frequencies (weekly, biweekly, semimonthly, monthly) and all four filing statuses for both federal and California withholding. Enter your gross pay, filing status, pre-tax deductions such as 401(k) contributions and health insurance premiums, and optional year-to-date wages to see a full breakdown of every paycheck deduction and your California net take-home pay.
A $5,000 biweekly worker (single) takes home roughly $3,850 after federal income tax, Social Security, Medicare, and California state withholding. This includes federal income tax withholding, CA state income tax withholding, CA SDI (1.1%), Social Security (6.2%), and Medicare (1.45%). Enter your own figures below for an exact breakdown.
How California paycheck withholding works
A California paycheck deducts seven categories of tax and withholding before you receive your net pay: federal income tax withholding, California state income tax withholding, California SDI (State Disability Insurance), Social Security tax (federal), and Medicare tax (federal). Additionally, pre-tax deductions (401k, health insurance) reduce your taxable wages, and post-tax deductions are taken after all taxes.
Step 1: Gross pay and pre-tax deductions
Gross pay is your total wages before any deductions. Pre-tax deductions (401k, health insurance, FSA) reduce both federal and California taxable wages.
Taxable wages = Gross pay - Pre-tax deductions
Step 2: Federal income tax withholding (IRS Pub 15-T, percentage method, 2025)
Your employer annualizes your gross pay, applies the IRS Pub 15-T percentage-method table for your filing status, then divides by pay periods per year. Any extra withholding from W-4 Step 4c is added.
Annualized gross = Gross pay x Pay periods per year Annual federal tax = From IRS Pub 15-T table (filing status) Federal withholding = (Annual federal tax / Pay periods) + Extra withholding
2025 single-filer federal withholding brackets (IRS Pub 15-T):
| Annualized wage | Rate |
|---|---|
| $0 to $11,925 | 10% |
| $11,926 to $48,475 | 12% |
| $48,476 to $103,350 | 22% |
| $103,351 to $197,300 | 24% |
| $197,301 to $250,525 | 32% |
| $250,526 to $626,350 | 35% |
| Above $626,350 | 37% |
Married filing jointly brackets are approximately double single brackets. Head-of-household and married filing separately use separate IRS Pub 15-T tables.
Step 3: California state income tax withholding (CA FTB, annualized method, 2025)
California uses the annualized withholding method. Your employer annualizes your gross pay, subtracts the CA standard deduction, applies CA tax brackets, then subtracts personal and dependent exemption credits. Per-period withholding is the annual amount divided by pay periods.
Annualized CA wages = Taxable wages x Pay periods per year CA taxable income = Annualized wages - CA standard deduction ($5,202 single, $10,404 MFJ) Annual CA tax = From CA FTB brackets (filing status) Annual CA tax after credits = Annual CA tax - Personal credit - (Dependent credit x Dependents) CA withholding = Annual CA tax after credits / Pay periods
2025 CA single-filer tax brackets (CA FTB):
| Taxable income | Rate |
|---|---|
| $0 to $10,756 | 1% |
| $10,757 to $25,499 | 2% |
| $25,500 to $40,245 | 4% |
| $40,246 to $55,866 | 6% |
| $55,867 to $70,606 | 8% |
| $70,607 to $360,659 | 9.3% |
| $360,660 to $432,787 | 10.3% |
| $432,788 to $721,314 | 11.3% |
| Above $721,315 | 12.3% |
MFJ brackets are approximately double. Head-of-household uses single brackets. Additional 1% Mental Health Tax applies on income above $1,000,000 (Prop 63).
Step 4: California SDI (State Disability Insurance)
CA SDI is a state insurance program providing partial income replacement for non-work-related illness or injury. Employees pay 1.1% of all wages with no annual wage base cap (effective 2024, SB 951). This is withheld separately from CA income tax.
CA SDI = Gross pay x 1.1%
Step 5: Social Security and Medicare (FICA, federal)
These flat-rate federal payroll taxes are applied to gross pay. Social Security stops at the annual wage base; Medicare has no wage cap. Additional Medicare tax applies to high earners.
Social Security = Gross pay x 6.2% (wages up to $176,100/year for 2025) Medicare = Gross pay x 1.45% (no wage cap) Additional Medicare = max(0, Annualized gross - Threshold) / Pay periods x 0.9% Additional Medicare threshold: $200,000 (single), $250,000 (MFJ), $200,000 (MFS/HoH)
Step 6: Net pay
Net pay = Gross pay - Federal tax - CA tax - CA SDI - Social Security - Medicare - Post-tax deductions
Worked example
Gross $5,000 biweekly, single filing status, no dependents, 1 CA withholding allowance, no pre-tax deductions, 2025.
- Taxable wages = $5,000 (no pre-tax deductions).
- Federal: Annualized = $5,000 x 26 = $130,000. Brackets: 10% on $11,925 ($1,192.50), 12% on $36,550 ($4,386), 22% on $54,875 ($12,072.50), 24% on $26,650 ($6,396). Annual tax = $24,047. Per-period = $24,047 / 26 = $925.00 federal income tax.
- California: Annualized = $5,000 x 26 = $130,000. Taxable = $130,000 - $5,202 = $124,798. Tax from brackets: 1% on $10,756 ($107.56), 2% on $14,742 ($294.84), 4% on $14,745 ($589.80), 6% on $15,621 ($937.26), 8% on $14,739 ($1,179.12), 9.3% on $290,052 ($26,974.84). Annual tax = $30,083.42. Less CA personal credit ($144) = $29,939.42. Per-period = $29,939.42 / 26 = $1,151.51 CA income tax.
- CA SDI = $5,000 x 0.011 = $55.00.
- Social Security = $5,000 x 0.062 = $310.00.
- Medicare = $5,000 x 0.0145 = $72.50.
- Total tax and withholding = $925.00 + $1,151.51 + $55.00 + $310.00 + $72.50 = $2,514.01.
- Net take-home = $5,000 - $2,514.01 = $2,485.99 per biweekly period.
These figures use 2025 IRS Pub 15-T, CA FTB tax tables, and SSA wage bases. This is a simplified example and does not include employer SUI (State Unemployment Insurance) or other payroll-tax complexities.
Frequently asked questions
How is California income tax withheld from my paycheck?
California uses the annualized method. Your employer annualizes your gross pay, subtracts the CA standard deduction, applies the CA tax brackets to calculate an annual tax, subtracts personal and dependent exemption credits, then divides by pay periods per year. CA SDI (State Disability Insurance) at 1.1% is withheld separately on all wages with no wage base cap.
What is California SDI (State Disability Insurance) and why is it so high?
CA SDI is a state-administered insurance program that covers partial income replacement if you become unable to work due to illness or non-work injury. Employees pay 1.1% of all wages (no annual cap as of 2024 per SB 951). There is no separate employee payroll tax for unemployment insurance (SUI); employers pay that separately. SDI is not optional.
Why is California income tax higher than federal income tax on the same wage?
California has steeper progressive brackets and higher top rates than federal tax. CA's top rate is 12.3% (plus 1% Mental Health Tax above $1,000,000), compared to the federal 37% top rate. CA taxes start at 1% on the first $10,756 of income, whereas federal starts at 10%. Effective rates depend on income: mid-income earners often pay more state tax in California than in many other states.
What is the difference between filing status on my W-4 and my CA DE-4?
Your W-4 determines federal withholding; your CA DE-4 determines state withholding. Both should match your tax filing status (single, married filing jointly, etc.), but they are separate forms. Federal and state tax tables are different, so withholding amounts will differ even for the same gross pay and status.
How does the annualized method for CA state tax withholding work?
Annualization converts per-period wages to an annual figure by multiplying by pay periods per year (e.g., biweekly * 26). California applies tax brackets to the annualized wage, subtracts credits, divides by pay periods to get the per-period withholding. This means a biweekly paycheck and a weekly paycheck at the same hourly rate can have different per-period withholding because the annualized figure is the same, and brackets are applied once annually.
Do I need to pay federal Social Security and Medicare tax on CA wages?
Yes. Social Security and Medicare (FICA) are federal taxes that apply to all US wages, including those earned in California. Social Security is 6.2% up to the 2025 wage base of $176,100. Medicare is 1.45% with no cap, plus an additional 0.9% Medicare surtax on high earners. These are withheld in addition to federal and state income tax.
Official sources
- CA payroll tax rates and withholding: CA Employment Development Department, Payroll Tax Rates and Withholding.
- CA income tax withholding: CA Franchise Tax Board, Income Tax Withholding.
- CA Employer's Guide (DE 44): CA EDD, Employer's Guide (DE 44).
- CA SDI employee contribution rate (1.1%): CA EDD, SDI Rates.
- Federal withholding tables (2025): IRS Publication 15-T, Percentage Method Tables for Automated Payroll Systems.
- Social Security wage base and FICA rates: IRS Tax Topic 751, Social Security and Medicare Withholding Rates.
- 2025 Social Security wage base ($176,100): Social Security Administration, 2025 COLA Facts Sheet.
Reviewed by the CalculatorHub team, edited by James Graham, 13 June 2026. See our methodology. General information only, not financial or tax advice. Consult a tax professional or the CA FTB for advice specific to your situation.