Paycheck Calculator

Federal income tax withholding depends on your W-4 elections: filing status (single, married, head of household), number of dependents, and any additional withholding amounts. The IRS uses a progressive system — your employer applies the current year's tax brackets to your projected annual income from each paycheck. A single filer earning $75,000 annually with biweekly pay ($2,884.62 gross per period) has approximately $340-380 withheld for federal tax per paycheck. State income tax adds another 0-13.3% depending on your state: California (1-13.3%), New York (4-10.9%), Texas (0%), and Florida (0%) represent the spectrum. Nine states impose no income tax at all. Adjusting your W-4 to claim more allowances reduces withholding but may result in owing taxes at filing time.

FICA taxes are flat-rate deductions that fund Social Security and Medicare. Social Security tax is 6.2% of gross pay up to the wage base limit ($168,600 in 2026) — your employer matches this amount, bringing the total to 12.4%. Medicare tax is 1.45% with no wage limit, plus an additional 0.9% surtax on wages exceeding $200,000 (single). Combined FICA for most workers is 7.65% of gross pay. On a $75,000 salary, annual FICA is $5,738 ($220.69 per biweekly paycheck). Unlike income tax, FICA has no deductions or credits — it applies to every dollar from the first paycheck. Self-employed individuals pay both halves (15.3% total) but can deduct the employer-equivalent portion on their tax return.

Pre-tax deductions reduce your taxable income, saving you money in taxes. Common pre-tax deductions include: traditional 401(k) contributions (saving 22-37% in taxes on each dollar contributed), health insurance premiums (average $500-700/month for family coverage, with employers typically paying 70-80%), HSA contributions ($4,150 individual / $8,300 family limit), FSA contributions ($3,200 limit), and commuter benefits ($315/month for transit or parking). Post-tax deductions — Roth 401(k) contributions, life insurance above $50,000 coverage, union dues, and charitable payroll deductions — do not reduce current taxable income but may provide future tax benefits (Roth) or other value. Maximizing pre-tax deductions is the most effective way to increase take-home pay — a $500/month 401(k) contribution costs only $350-390 in reduced net pay due to the tax savings.

A paycheck calculator estimates your net take-home pay by starting with gross wages and subtracting every mandatory and voluntary deduction an employer withholds before money reaches your bank account. It converts an annual salary or hourly rate into a per-paycheck figure so you can budget against real dollars, not the number on your offer letter.

The engine works in a fixed order to stay accurate:

• Convert gross pay to your chosen pay frequency (weekly, biweekly, semi-monthly, or monthly).

• Subtract pre-tax deductions such as a traditional 401(k) and Section 125 health premiums to find taxable wages.

• Apply federal income tax using the current-year IRS progressive brackets, then state income tax.

• Withhold FICA (Social Security and Medicare) per Social Security Administration rules.

The result is an estimate; your actual withholding follows the tables in IRS Publication 15-T and your W-4.

Enter your pay details from the top down and the calculator returns a full gross-to-net breakdown instantly. You only need information from an offer letter, pay stub, or benefits portal to get a realistic estimate.

Follow these steps in order:

• Choose salary or hourly; for hourly, add your rate and average hours per week.

• Pick your pay frequency so per-check math matches your employer's schedule.

• Select your filing status (single, married filing jointly, or head of household) and your state.

• Enter your 401(k) percentage, health insurance premium, and any other pre-tax deductions like HSA or FSA.

Review the take-home per paycheck, annual net, and effective tax rate. For an authoritative cross-check of federal withholding, run the same numbers through the free IRS Tax Withholding Estimator before adjusting your W-4.

A single filer earning $75,000 in California, paid biweekly with a 6% 401(k), takes home roughly $1,860 per paycheck in this model. Walking through the math shows exactly where each dollar goes.

Here is the gross-to-net path per period:

• Gross: $75,000 divided by 26 pay periods equals about $2,884.62.

• Pre-tax: 6% 401(k) (about $173) plus a $150 health premium lower taxable wages.

• Federal and state tax: brackets apply after the standard deduction, then California's rate applies to state wages.

• FICA: 6.2% Social Security plus 1.45% Medicare on wages after the Section 125 health premium.

Net lands near $1,862 per biweekly check, or roughly $48,400 per year. Because the 401(k) is pre-tax, it reduces income tax but not FICA, consistent with IRS and Social Security Administration rules.

Pay frequency changes the size of each check but not your annual gross pay or total tax owed. The same salary is simply sliced into more or fewer pieces across the year, so a smaller check does not mean you are paying more.

The four common US schedules split the year differently:

• Weekly (52 checks): smallest amounts, most frequent deposits.

• Biweekly (26 checks): paid every two weeks, with two months a year containing a third paycheck.

• Semi-monthly (24 checks): paid on set dates like the 15th and last day, slightly larger than biweekly.

• Monthly (12 checks): largest single check, but only once a month.

Employers must follow state pay-frequency laws tracked by the U.S. Department of Labor. Withholding per check may vary slightly, but year-end federal liability is settled when you file with the IRS.

Hourly and salaried take-home pay use the same tax rules but start from different gross-pay math. A salary is a fixed annual figure, while hourly gross depends on how many hours you actually work each week.

The calculation differs only at the first step:

• Salaried: annual salary divided by the number of pay periods equals gross per check.

• Hourly: hourly rate times hours per week times 52 equals annual gross, then divide by pay periods.

After gross is set, federal tax, state tax, and FICA apply identically for both. One key difference: nonexempt hourly workers are generally entitled to overtime at 1.5x their rate beyond 40 hours in a week under the Fair Labor Standards Act, enforced by the U.S. Department of Labor. Overtime raises gross pay and can push part of a check into a higher marginal bracket.

Your W-4 controls how much federal tax your employer withholds, and adjusting it is the fastest way to fix a paycheck that feels too small or a surprise tax bill. A large refund means you over-withheld and gave the government an interest-free loan; owing a lot means you under-withheld.

Use these levers on the current IRS Form W-4:

• Filing status sets your baseline withholding level.

• Multiple jobs or a working spouse (Step 2) prevents systematic under-withholding.

• Dependents (Step 3) reduce withholding via tax credits.

• Extra withholding (Step 4c) lets you add a flat dollar amount per check.

After any life change, re-run the IRS Tax Withholding Estimator and submit an updated W-4 to your payroll department. The Consumer Financial Protection Bureau recommends aiming for withholding that roughly matches your actual liability rather than a big refund.

State income tax can swing your take-home pay by thousands of dollars a year, because rates range from zero to over 13% depending on where you work. Two people with identical salaries can net very different amounts based solely on state.

States fall into three broad groups:

• No income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming levy no tax on wage income.

• Flat tax: a single rate applies to all taxable income regardless of amount.

• Progressive: rates rise with income, as in California, New York, and Oregon.

Some cities add local income taxes on top, so check your municipality too. This calculator uses an approximate top marginal rate for each state; for precise figures consult your state Department of Revenue, and note that federal tax and FICA still apply everywhere.

The most common paycheck-estimating mistake is assuming take-home equals gross minus one flat tax rate, which almost always overstates your net pay. Real paychecks involve layered federal, state, and payroll taxes plus benefit deductions.

Watch for these frequent errors:

• Forgetting FICA: Social Security and Medicare take 7.65% off the top before income tax, per the Social Security Administration.

• Assuming 401(k) cuts every tax: traditional 401(k) lowers income tax but not FICA.

• Ignoring the Social Security wage cap: high earners stop paying the 6.2% portion once they hit the annual IRS wage base, so late-year checks grow.

• Confusing marginal and effective rates: your top bracket is not the rate you pay on every dollar.

• Leaving out post-tax deductions: Roth 401(k), garnishments, and after-tax insurance shrink net pay too.

Cross-check estimates against a real pay stub before making financial commitments.