From gross pay to take-home pay
Every paycheck starts at your gross pay and loses a few layers before it reaches your account:
- Pre-tax deductions. Traditional 401(k) or 403(b) contributions, and health insurance premiums or HSA contributions paid through a cafeteria plan, come out first. They are not taxed now.
- Federal income tax on what is left, after the standard deduction, using the 2026 brackets for your filing status.
- Social Security (6.2%) and Medicare (1.45%), together called FICA. Health premiums through a cafeteria plan reduce the wages FICA is charged on; 401(k) deferrals do not.
- State and local income tax, if your state and city have one.
- After-tax deductions, such as Roth 401(k) contributions or union dues.
The calculator works each tax out for the whole of 2026, then divides it by the number of paychecks: 52 if you are paid weekly, 26 every two weeks, 24 twice a month and 12 monthly. For the yearly tax bill bracket by bracket, see the income tax calculator; to convert an hourly rate into a salary first, use the salary calculator.
The formula
Net = G − R − H − (F + S + M + T) ÷ n − A
- G
- gross pay per paycheck
- R, H
- 401(k) and health deductions per paycheck
- F
- 2026 federal income tax on n × (G − R − H) minus the standard deduction
- S
- Social Security: 6.2% of n × (G − H), on wages up to $184,500
- M
- Medicare: 1.45% of n × (G − H), plus 0.9% above $200,000 ($250,000 married filing jointly, $125,000 separately)
- T
- state and local tax: your flat rates × n × (G − R − H)
- n
- paychecks per year
- A
- after-tax deductions per paycheck
Each amount is rounded to the cent per paycheck, and take-home pay is what remains, so the breakdown always adds up to your gross pay.
Worked example
A single employee earns $75,000 a year, paid every two weeks. Each paycheck $150 goes to a traditional 401(k) and $100 to health insurance, and the state taxes income at a flat 4%.
- Gross per paycheck: $75,000 ÷ 26 = $2,884.62
- Wages for income tax: $75,000 − $3,900 (401(k)) − $2,600 (health) = $68,500; taxable income after the $16,100 standard deduction is $52,400
- Federal income tax: $5,800 + 22% × ($52,400 − $50,400) = $6,240 a year, or $240.00 per paycheck
- Social Security: 6.2% × $72,400 = $4,488.80 a year ($172.65 per paycheck); Medicare: 1.45% × $72,400 = $1,049.80 ($40.38)
- State tax: 4% × $68,500 = $2,740 a year ($105.38)
- Take-home: $2,884.62 − $150 − $100 − $240.00 − $172.65 − $40.38 − $105.38 = $2,076.21 per paycheck, $53,981.40 for the year
Why your actual paycheck may differ
This calculator spreads your annual tax liability evenly over the year. Your employer does something different: it withholds an estimate from each paycheck using the methods in IRS Publication 15-T and the answers on your Form W-4. The two usually land close together, but not exactly:
- Your W-4 changes withholding. Dependents, other income, a second job, extra withholding and deductions you list all move the amount taken out.
- Bonuses and irregular pay are withheld differently. Employers may withhold a flat 22% of supplemental wages such as bonuses and commissions, and must withhold 37% on supplemental wages above $1 million in a year.
- Social Security stops mid-year for high earners. Once your wages for the year reach $184,500, no more Social Security is taken, so later paychecks are larger. Here it is averaged over the year.
- Additional Medicare Tax is withheld on wages above $200,000 from one employer whatever your filing status; the calculator uses your filing status threshold, which is your actual liability.
Any gap between what was withheld and what you owe is settled on your tax return, as a refund or a balance due.
What this estimate leaves out
- Tax credits such as the child tax credit, which lower your tax and, through the W-4, your withholding.
- Other income and other jobs. The tax is worked out as if this job were your household’s only income, including on a joint return.
- State rules. A flat rate stands in for your state’s brackets, deductions and credits, and some states tax 401(k) contributions or charge payroll taxes for disability or family leave.
- New federal deductions for tips, overtime and seniors, and itemized deductions.
Check against a real pay stub
Enter your gross pay and deductions from a recent pay stub. If the federal line differs a lot from your stub, revisit your W-4 with the IRS Tax Withholding Estimator rather than waiting for a surprise at tax time.
Frequently asked questions
How much is taken out of a $75,000 salary per paycheck?
For a single filer paid every two weeks with no deductions and no state tax, $295.00 of federal income tax and $220.68 of Social Security and Medicare come out of each $2,884.62 paycheck, leaving $2,368.94. Deductions and state tax lower that, as the calculator shows.
What is the difference between biweekly and semimonthly pay?
Biweekly means every two weeks, 26 paychecks a year, with two months that have three paydays. Semimonthly means twice a month on set dates, 24 paychecks a year. The same salary gives a smaller biweekly paycheck because it is split into more payments.
Do 401(k) contributions reduce Social Security and Medicare tax?
No. Traditional 401(k) and 403(b) deferrals lower the wages subject to federal income tax, but Social Security and Medicare are still charged on them. Health insurance premiums and HSA contributions paid through a cafeteria plan are the exception: they are exempt from both.
Why is my bonus taxed so heavily?
Bonuses are supplemental wages, and employers are allowed to withhold a flat 22% of federal income tax on them instead of using your regular withholding. That is only withholding: the bonus is taxed with the rest of your income on your return, so too much or too little withheld comes back or is due when you file.
Does this calculator include state income tax?
Only as a flat percentage you enter. States use their own brackets, deductions and credits, and a few states don’t tax wages at all, so enter your state’s effective rate or 0. The same applies to city or county income tax.
Sources
- IRS — Publication 15-T (2026), Federal Income Tax Withholding Methods
- IRS — IRS releases tax inflation adjustments for tax year 2026 (IR-2025-103)
- IRS — Revenue Procedure 2025-32 (2026 tax rate tables and standard deduction)
- Social Security Administration — Contribution and benefit base (2026 wage base and tax rates)
- IRS — Topic no. 560, Additional Medicare Tax
- IRS — Publication 15-B, Employer’s Tax Guide to Fringe Benefits (cafeteria plans, health benefits, HSAs)
- IRS — Topic no. 424, 401(k) plans
- IRS — Tax Withholding Estimator
Last reviewed September 19, 2026