About This Paycheck Calculator
This calculator helps you quickly estimate how much of your paycheck you'll actually take home after taxes and deductions. It's designed to be simple and practical — enter your gross pay, your estimated tax rates, and any deductions, and you'll get an instant breakdown of where your money goes.
It works for all common pay frequencies: hourly, weekly, biweekly (every two weeks), semimonthly (twice a month), monthly, and annually. If you're paid hourly, it calculates your gross pay from your hourly rate and hours worked — including overtime at your chosen multiplier.
Gross Pay vs. Net Pay
Gross pay is your total earnings before anything is taken out. If you earn $25/hour and work 40 hours, your weekly gross pay is $1,000. If you're on salary, gross pay is your agreed-upon pay for that period.
Net pay — your take-home pay — is what remains after federal taxes, state taxes, and all deductions have been subtracted. It's the number that matters most when budgeting.
How Pre-Tax and Post-Tax Deductions Work
Pre-tax deductions (like 401(k) contributions, health insurance premiums, and HSA contributions) are subtracted from your gross pay before taxes are calculated. This lowers your taxable income, which means you pay less in taxes — a genuine benefit of participating in these programs.
Post-tax deductions come out after taxes have already been calculated. Roth IRA contributions, wage garnishments, and certain insurance premiums fall into this category. They reduce your take-home pay but don't lower your tax bill.
A Note on Accuracy
This calculator uses flat tax rates you provide rather than official IRS withholding tables. It does not account for Social Security (6.2%), Medicare (1.45%), local city or county taxes, or employer-specific payroll settings. Your actual paycheck may differ based on your W-4 elections, benefits enrollment, and how your employer processes payroll. Use this as a helpful estimate — then compare it to your actual pay stub for the full picture.
Don't Forget FICA
Every US paycheck has FICA taxes withheld on top of income tax — Social Security at 6.2% and Medicare at 1.45%, a combined 7.65% of your gross pay (your employer pays a matching 7.65%). Since this tool uses a single federal rate, the most accurate way to mirror a real check is to fold that 7.65% into the federal rate you enter. For example, if you estimate about 10% for federal income tax, enter roughly 18% to also capture FICA.
Here's what FICA alone takes from a $2,500 biweekly gross check:
| Payroll tax | Rate | On $2,500 |
|---|
| Social Security | 6.20% | $155.00 |
| Medicare | 1.45% | $36.25 |
| FICA total | 7.65% | $191.25 |
Social Security is only withheld up to an annual wage base (adjusted yearly); Medicare has no cap and adds an extra 0.9% on wages above $200,000.
Worked Example
Take a $2,500 biweekly paycheck (about $65,000 per year) with a $200 pre-tax 401(k) contribution, a $50 post-tax deduction, an 18% federal rate (roughly 10% income tax plus 7.65% FICA), and a 5% state rate:
Taxable income = $2,500 − $200 = $2,300
Federal = $2,300 × 18% = $414.00
State = $2,300 × 5% = $115.00
Net pay = $2,500 − $200 − $414 − $115 − $50 = $1,721.00
Your take-home for that period is $1,721. Across 26 biweekly checks, that's roughly $44,746 a year in hand, with the rest going to taxes, your 401(k), and other deductions. To estimate the income-tax portion of your federal rate, use the Tax Calculator; to turn an hourly wage into annual pay, use the Hourly to Salary Calculator.
Formula Used
Taxable Income = Gross Pay − Pre-tax Deductions
Federal Withholding = Taxable Income × Federal Rate
State Withholding = Taxable Income × State Rate
Net Pay = Gross Pay − Pre-tax Ded. − Federal − State − Post-tax Ded. − Extra Withholding
Frequently Asked Questions
What is the difference between gross pay and net pay?Gross pay is your total earnings before any taxes or deductions are taken out. Net pay — often called take-home pay — is what actually lands in your bank account after federal taxes, state taxes, and any deductions have been subtracted.
How accurate is this paycheck calculator?This calculator gives a reliable estimate based on the rates and deductions you enter. It uses a flat-rate approach rather than official IRS withholding tables, so results are a close approximation — not an exact payroll figure. For precise withholding, consult your employer's payroll system or a tax professional.
What are pre-tax deductions?Pre-tax deductions are amounts subtracted from your gross pay before taxes are calculated. Common examples include 401(k) contributions, health insurance premiums, HSA contributions, and FSA contributions. These reduce your taxable income, which lowers the amount of tax you owe.
What are post-tax deductions?Post-tax deductions come out after taxes have been calculated. Examples include Roth IRA contributions, wage garnishments, union dues, and some life insurance premiums. These do not reduce your taxable income.
Why is my take-home pay lower than expected?A few common reasons: your federal or state tax rate may be higher than you estimated, you may have more deductions than you accounted for, or your employer may withhold additional amounts based on your W-4. This calculator uses flat rates — your actual withholding depends on your W-4 allowances and employer settings.
Does this calculator include overtime pay?Yes. When you select Hourly as your pay frequency, fields for overtime hours and an overtime multiplier (defaulting to 1.5×) appear. The calculator adds your regular pay and overtime pay together to arrive at your gross pay for that period.
Can I use this calculator if I'm paid biweekly?Yes. Select 'Biweekly' from the pay frequency dropdown and enter your gross pay for that pay period. The calculator will estimate your take-home pay per paycheck based on the taxes and deductions you enter.
Why doesn't my result exactly match my real paycheck?Payroll uses official IRS withholding tables, your specific W-4 elections, employer-sponsored benefit deductions, local taxes, Social Security, and Medicare contributions — none of which this simplified estimator accounts for. Use this for a quick ballpark, and compare it to your actual pay stub for the full picture.