This paycheck tax withholding calculator estimates the federal taxes taken out of each paycheck in 2026: federal income tax (based on your W-4 filing status and the 2026 brackets), 6.2% Social Security up to the $184,500 wage base, and 1.45% Medicare on all wages. Enter your salary, pay frequency, and filing status to see withholding per paycheck and your estimated annual total. It mirrors the IRS percentage-method logic employers use.
Three federal taxes come out of nearly every U.S. paycheck: federal income tax (set by your W-4 and the 2026 brackets after the standard deduction), Social Security at 6.2% on wages up to $184,500, and Medicare at 1.45% on all wages (plus an extra 0.9% above $200,000). State income tax, where it applies, is withheld separately. Pre-tax deductions such as 401(k), HSA, and many health premiums lower the wages subject to income tax before withholding is figured.
| Component | 2026 rate / basis |
|---|---|
| Federal income tax | 10%–37% (after $16,100/$32,200 standard deduction) |
| Social Security (OASDI) | 6.2% up to $184,500 wage base |
| Medicare (HI) | 1.45% on all wages, no cap |
| Additional Medicare | +0.9% on wages over $200,000 |
The 2020-and-later Form W-4 no longer uses allowances. Instead, your filing status, multiple-jobs adjustment, dependents (Step 3 credits), other income, deductions, and any extra withholding (Step 4c) set how much is taken out. Claiming the standard deduction with no adjustments — what this calculator assumes — gives a baseline. Adding dependent credits lowers withholding; requesting extra withholding raises it. Use the official IRS Tax Withholding Estimator for a return-accurate figure that accounts for credits.
Withholding is an estimate your employer remits each payday; your actual tax is settled when you file. Too much withholding means a refund (an interest-free loan to the government); too little means a balance due and possibly a penalty. Big life changes — a raise, marriage, a second job, a new child — are the moments to update your W-4 so withholding tracks your real liability.
Contributions to a traditional 401(k), HSA, FSA, or pre-tax health premiums come out before federal income tax is calculated, so they lower the income-tax line (and HSA/FSA can also lower FICA). Entering your annual pre-tax total in the calculator shows how a $5,000 401(k) contribution, for example, trims your withholding while building retirement savings.
It depends on your wages, pay frequency, and W-4. The calculator applies the 2026 brackets after the standard deduction, then adds 6.2% Social Security (up to $184,500) and 1.45% Medicare. On $65,000 single, total federal withholding is roughly $10,600 a year (about $407 per biweekly check).
The 2026 Social Security (OASDI) wage base is $184,500. You pay 6.2% on wages up to that cap; earnings above it are not subject to Social Security tax, though Medicare has no cap.
Yes. Traditional 401(k), HSA, FSA, and many health premiums reduce the wages subject to federal income tax before withholding is figured. HSA and FSA contributions can also reduce Social Security and Medicare tax.
Withholding is an ongoing estimate; your real tax is calculated on your return using all your income, credits, and deductions. Over-withholding produces a refund and under-withholding a balance due. Update your W-4 after major life or income changes.
No, this tool estimates federal withholding only. For state income tax, use a state-specific payroll calculator such as the California, New York, or Illinois payroll calculators linked below.