Paycheck Calculator
Enter your gross pay, pay frequency, filing status, and deductions to see your net paycheck amount after all taxes and withholdings.
Reviewed by the ToolNestr Editorial Team — July 2026
How your paycheck is calculated
Your net pay starts with your gross pay, then subtracts pre-tax deductions, federal income tax, FICA taxes (Social Security + Medicare), and state income tax. The formula: Net Pay = Gross - Pre-tax Deductions - Federal Tax - FICA - State Tax. Pre-tax deductions reduce your taxable income, saving you money on all three tax types.
Understanding each component of your paycheck helps you verify that your employer is withholding correctly, optimize your W-4 allowances, and evaluate how changes like a raise, bonus, or additional 401k contribution affect your take-home pay. This calculator provides estimates and should not be used as official tax advice — always consult a tax professional for your specific situation.
Worked example
Bi-weekly pay of $3,846.15 ($100,000 annual), single filer, $384.62 pre-tax 401k contribution.
About paycheck calculations
Understanding your paycheck is essential for personal financial planning. Knowing exactly how much you take home helps you budget accurately, plan for expenses, and evaluate job offers. The difference between gross and net pay can be significant — a $100,000 salary may result in only $70,000 to $75,000 of take-home pay depending on your location, deductions, and benefits. Use the US Income Tax Calculator for a detailed federal tax estimate and the Salary Calculator to compare hourly versus annual wages.
How to use it
- Enter your gross pay for one pay period (before any deductions).
- Select your pay frequency, filing status, and any pre-tax deductions.
- View your net take-home pay, total deductions, and annualized net pay.
When to use this tool
Use it when evaluating a new job offer to compare net pay across opportunities, when adjusting your 401k contribution to see the impact on your paycheck, when changing your W-4 withholding, or when budgeting based on actual take-home pay rather than gross salary.
Tips for maximizing take-home pay
- Increase traditional 401k contributions — they reduce your taxable income and save you at your marginal rate.
- Use an HSA or FSA for healthcare expenses — these are pre-tax and reduce your taxable income.
- Review your W-4 withholding annually to avoid large refunds (interest-free loan to the government) or underpayment penalties.
Salaried Employee
Understand your true take-home pay and how changes in salary, filing status, or 401k contributions affect each paycheck throughout the year.
Hourly Worker
Calculate net pay for different hourly rates and hours worked. See how overtime, shift differentials, and bonuses affect your take-home amount per check.
Newly Married Couple
Compare net pay under different filing statuses and adjust W-4 withholdings for both spouses to optimize the total household tax situation.
Job Seeker
Compare net pay from multiple job offers — two employers offering the same gross salary may result in different take-home pay due to benefits and location.
How to use the paycheck calculator
Enter pay details
Input your gross pay per period and select your pay frequency. For hourly workers, use the hourly wage calculator for the gross amount first.
Set deductions
Enter pre-tax deductions like 401k, HSA, FSA, and health insurance premiums. These reduce your taxable income and lower your tax withholdings.
Review net pay
See your take-home pay per period and annualized. Use the breakdown of deductions to understand where your money goes each pay period.
Tips for optimizing your paycheck
Adjust your W-4 accurately
The IRS W-4 form determines how much federal tax is withheld from each paycheck. Filling it out accurately prevents large refunds (which means you overpaid) or underpayment penalties. Update your W-4 after major life changes like marriage, divorce, or a new child.
Maximize pre-tax benefits
Pre-tax deductions reduce both federal income tax and FICA taxes. Contributing to a traditional 401k, HSA, or FSA lowers your taxable income. In 2025, you can contribute up to $23,500 to a 401k and $4,300 to an HSA (self-only) or $8,600 (family).
Consider state taxes
State income tax rates range from 0% to over 13%. If you work remotely or are considering relocation, the state tax difference can significantly impact your net pay. Use state-specific calculators for accurate estimates in your jurisdiction.
Related tools
- US Income Tax Calculator — Detailed federal income tax bracket calculation.
- Salary Calculator — Convert between hourly, weekly, monthly, and annual salary figures.
- Overtime Pay Calculator — Calculate overtime earnings at time-and-a-half or double-time rates.
Frequently asked questions
What is net pay?
Net pay (take-home pay) is the amount you receive in your paycheck after all deductions including federal income tax, Social Security, Medicare, state income tax, and any voluntary deductions like health insurance or retirement contributions.
What are FICA taxes?
FICA (Federal Insurance Contributions Act) taxes fund Social Security and Medicare. The rate is 7.65% for employees — 6.2% for Social Security (up to the wage base limit of $168,600 in 2025) and 1.45% for Medicare (no cap).
How does pay frequency affect my paycheck?
Pay frequency determines the amount per check. Weekly = annual salary / 52, Bi-weekly = annual / 26, Semi-monthly = annual / 24, Monthly = annual / 12. More frequent pay periods mean smaller checks but more of them.
What is the difference between pre-tax and post-tax deductions?
Pre-tax deductions (like traditional 401k and health insurance premiums) reduce your taxable income and lower your tax bill. Post-tax deductions (like Roth 401k) do not reduce current taxes but provide tax-free withdrawals later.
Which states have no income tax?
Nine states have no state income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. New Hampshire taxes only interest and dividends.
What is the federal withholding allowance?
The old allowance system was replaced by the W-4 form in 2020. Now you simply enter your filing status, claim dependents, and note any additional withholding or adjustments needed to match your expected tax liability.
How do I calculate my annual salary from my hourly rate?
Hourly to annual: rate × hours per week × 52 weeks. For example, $25/hour × 40 hours × 52 weeks = $52,000 per year. This calculator handles both hourly and salary inputs.
What is the Social Security wage base?
The Social Security tax (6.2%) only applies to earnings up to the annual wage base limit, which is $168,600 in 2025. Earnings above this amount are not subject to Social Security tax, though Medicare tax (1.45%) applies to all earnings.
How do retirement contributions affect my paycheck?
Traditional 401k contributions reduce your taxable income for both federal and state taxes, lowering your current tax bill. Roth contributions are made with after-tax dollars and do not reduce current taxes but grow tax-free for retirement.
Why does my paycheck vary if I'm salaried?
If you are paid bi-weekly (26 pay periods), some months have three paychecks due to the calendar. Semi-monthly pay (24 pay periods) provides consistent checks on the same dates each month. Your annual salary remains the same either way.
Sources & references
This tool uses standard formulas and reference values from:
- • IRS — federal tax brackets, standard deduction and instructions for the tax year. irs.gov
- • U.S. SEC — Investor.gov, compound interest and investment reference material. investor.gov
- • Official national tax authority for the relevant country — link the exact rate schedule used.
Estimates only, not tax or financial advice. Confirm current figures with the official source or a qualified professional.