Paycheck Tax Estimator

Payroll Tax Calculator

Estimate federal withholding, Social Security tax, Medicare tax, optional state withholding, and take-home pay per paycheck for 2025.

Advertisement

Try next

💰

Income Tax Calculator

Estimate your federal tax bill

 💵

Tax Refund Calculator

Will you get a refund?

 🧾

Self-Employment Tax

SE tax + deduction

Enter Your Paycheck Information

$
$
$
$
%
$
Understanding Your Results

Understanding Your Take-Home Pay and Payroll Deductions

The gap between your salary and your paycheck is one of the most common sources of financial confusion. If you're starting a new job, negotiating an offer, or just trying to budget accurately, this guide explains exactly what's coming out of your pay and why.

Why Your Paycheck Is Smaller Than Your Salary Suggests

A $75,000 salary doesn't mean $75,000 in your bank account. Federal income tax withholding, Social Security tax (6.2%), Medicare tax (1.45%), state income tax, and any pre-tax benefit contributions (health insurance, 401k, FSA) all reduce your gross pay before you see it. This calculator breaks down each deduction so you know exactly where your money goes.

How to Interpret Your Payroll Estimate — Step by Step

  1. Start with gross pay, not salary. If you're paid biweekly, your gross pay per check is your annual salary divided by 26. Semi-monthly is divided by 24, weekly by 52. Make sure you're entering the right per-period amount, or the annual figure, consistently.
  2. Understand FICA separately from income tax. Social Security (6.2% on wages up to $176,100 in 2025) and Medicare (1.45%, no cap) are flat-rate taxes — they don't depend on your W-4 allowances or filing status. Every W-2 employee pays them. Your employer matches these amounts, but the match doesn't appear on your paycheck.
  3. See how pre-tax deductions reduce your tax. 401(k) contributions, health insurance premiums, and FSA contributions are deducted before taxes are calculated. A $500/month 401(k) contribution doesn't cost you $500 after-tax — it costs you $500 minus the taxes you save on that $500.
  4. Add state tax to get your full picture. This calculator estimates federal withholding and FICA. To see your complete take-home pay, add your state income tax withholding — check your state's page in our state tax hub.

3 Common Mistakes When Using This Calculator

1
Not accounting for pre-tax deductions. If you contribute to a 401(k) or pay health insurance premiums pre-tax, your taxable wages are lower than your gross wages. These deductions reduce your withholding — factor them in for the most accurate estimate.
2
Treating withholding as your tax bill. Withholding is an estimate — your employer calculates it based on your W-4. Your actual tax liability is determined when you file your return. If you have other income sources, your withholding may not cover your full tax bill.
3
Using an outdated W-4. The IRS redesigned the W-4 in 2020. If you filed the old form and haven't updated it, your withholding may not accurately reflect your current situation — especially if you got married, had a child, or took on a second job.

What to Do Next

  • Use your payroll estimate alongside our income tax calculator to see whether your annual withholding will cover your tax liability — or whether you'll owe or receive a refund.
  • Starting a new job? Our job change tax guide walks through what happens to your withholding, retirement accounts, and tax situation when you switch employers.
  • Want to increase take-home pay without changing your salary? Read about pre-tax benefit options in our 401(k) guide and HSA guide.
  • Self-employed and comparing W-2 vs. contractor income? See our W-2 vs. 1099 comparison guide — contractor income looks higher on paper but carries hidden tax costs.
How It Works

How Payroll Taxes Are Calculated

Every paycheck has several layers of tax deductions. Here is the order in which they are applied.

1

Subtract Pre-Tax Deductions

Pre-tax deductions like 401(k) contributions and health insurance premiums reduce your taxable pay before federal withholding is calculated.

2

Estimate Federal Withholding

Your annualized taxable pay is run through 2025 federal tax brackets based on your filing status. The result is divided back to per-paycheck withholding.

3

Calculate FICA Taxes

Social Security tax is 6.2% up to the annual wage base ($176,100 for 2025). Medicare tax is 1.45% on all wages, plus an additional 0.9% above $200,000.

4

Subtract All Deductions for Net Pay

Federal withholding, FICA taxes, state withholding, and post-tax deductions are all subtracted from gross pay to estimate your take-home amount.

Formula Reference
// FICA Rates (2025) Social Security = Taxable Wages x 6.2% (up to $176,100 YTD) Medicare = Taxable Wages x 1.45% (no wage base limit) Add. Medicare = Wages above $200,000 x 0.9% // Net Pay Taxable Pay = Gross Pay - Pre-Tax Deductions Net Pay = Gross Pay - Federal WH - SS - Medicare - State WH - Post-Tax
FAQ

Frequently Asked Questions

Common deductions include federal income tax withholding, Social Security tax (6.2%), Medicare tax (1.45%), state income tax withholding, local taxes in some areas, and any benefits or retirement deductions your employer offers.
The Social Security wage base for 2025 is $176,100. Once your year-to-date wages exceed this amount, Social Security tax stops for the remainder of the year. Medicare tax has no wage base limit.
An additional 0.9% Medicare tax applies to wages above $200,000 for a single filer. Employers are required to withhold this once wages exceed that threshold in a year, regardless of your filing status.
Pre-tax deductions like traditional 401(k) contributions and health insurance premiums reduce the portion of your paycheck subject to federal income tax withholding. This lowers your taxable pay and therefore your estimated withholding, increasing your net pay.
Actual paycheck amounts vary based on your specific Form W-4 settings, employer payroll system, benefit elections, local taxes, bonuses, overtime, rounding, and other payroll adjustments. This calculator provides a simplified estimate.
Yes. You can submit an updated Form W-4 to your employer to adjust your federal withholding. Reducing withholding increases your take-home pay each period but may result in a smaller refund or a balance owed at tax time.

Related Tax Calculators

Income Tax Calculator Estimate annual federal tax and effective rate
Tax Refund Calculator Estimate your refund or balance owed
Self-Employment Tax FICA taxes for freelancers and contractors
Capital Gains Tax Estimate tax on stocks, crypto, real estate
Sales Tax Calculator Calculate purchase total with tax
State Tax Calculators Income tax estimates for all 50 states

Disclaimer: This calculator provides estimates for educational purposes only. Actual withholding depends on your Form W-4, employer payroll system, state rules, local taxes, and benefit elections. It is not tax, legal, or financial advice. Consult a qualified tax professional for specific guidance.