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Paycheck CalculatorEstimate take-home pay with federal tax, state tax, Social Security, and Medicare deductions.

Paycheck Calculator illustration
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Paycheck Calculator

Estimate take-home pay with federal tax, state tax, Social Security, and Medicare deductions.

How to Use
1

Enter Gross Pay

Input your gross salary amount and select the pay period.

2

Set Tax Details

Enter your state tax rate and any pre-tax deductions (401k, HSA, etc.).

3

View Take-Home Pay

See your net pay with a complete breakdown of all deductions.

What Is Paycheck Calculator?

A paycheck calculator estimates your take-home pay (net pay) by deducting federal income tax, state income tax, Social Security (6.2%), and Medicare (1.45%) from your gross pay. It uses the 2024 US federal tax brackets for single filers to calculate your marginal tax burden. Pre-tax deductions like 401(k) contributions and HSA payments reduce your taxable income, lowering your tax bill. The calculator shows your effective tax rate (total tax / gross income × 100), annual net pay, and equivalent monthly, bi-weekly, and weekly take-home amounts. This is an estimation tool — actual paycheck amounts depend on your specific tax situation, filing status, allowances, additional deductions, and local taxes.

Why Use Our Paycheck Calculator?

  • Uses real 2024 US federal tax brackets
  • Includes Social Security and Medicare deductions
  • Customizable state tax rate
  • Pre-tax deduction support (401k, HSA)
  • Shows effective tax rate and net pay across all periods

Common Use Cases

Job Offer Evaluation

Estimate actual take-home pay to evaluate job offers realistically.

Budget Planning

Know your monthly take-home pay for accurate household budgeting.

Tax Planning

See how increasing pre-tax deductions (401k) reduces your tax burden.

Salary Negotiation

Understand how a raise affects your actual take-home pay after taxes.

Technical Guide

US federal income tax uses progressive brackets: income is taxed at increasing rates as it passes through each bracket. For 2024 single filers: 10% up to $11,600, 12% to $47,150, 22% to $100,525, 24% to $191,950, 32% to $243,725, 35% to $609,350, 37% above. Tax is computed by summing bracket contributions. Social Security tax is 6.2% of wages up to $168,600 (2024 cap). Medicare is 1.45% of all wages (no cap). State tax varies from 0% (TX, FL, etc.) to 13.3% (CA top rate). The effective tax rate is the total tax divided by gross income, which is always lower than the marginal rate because lower brackets are taxed at lower rates.

Tips & Best Practices

  • 1
    Your effective tax rate is always lower than your marginal (top) bracket rate
  • 2
    Increasing 401k contributions reduces taxable income dollar-for-dollar
  • 3
    States with no income tax: TX, FL, WA, NV, TN, WY, SD, AK, NH
  • 4
    This is an estimate — actual taxes depend on filing status, deductions, and credits
  • 5
    Don't forget about employer-matched 401k — free money that increases total compensation

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Frequently Asked Questions

QWhy is my take-home pay less than I expected?
Federal tax, state tax, Social Security (6.2%), and Medicare (1.45%) can take 25-40% of gross pay depending on income and location.
QWhat is the difference between gross and net pay?
Gross pay is your total earnings before any deductions. Net pay (take-home) is what you actually receive after taxes and deductions.
QHow does a 401k affect my paycheck?
Traditional 401k contributions are pre-tax, reducing your taxable income. Contributing $500/month reduces your tax bill, so your net pay doesn't decrease by the full $500.
QIs this accurate for all filing statuses?
This calculator uses single filer brackets. Married filing jointly has different brackets (roughly double the thresholds). Use as an estimate and consult a tax professional.
QWhat is the Social Security wage cap?
In 2024, Social Security tax (6.2%) only applies to the first $168,600 of earnings. Income above this is not subject to Social Security tax (but Medicare still applies).

About Paycheck Calculator

Paycheck Calculator is a free online tool from FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration required. No ads. Just fast, reliable tools.