Calculate your exact take-home pay after federal taxes, Social Security, and Medicare deductions.
Your gross pay is reduced by federal income tax, FICA taxes (Social Security + Medicare), and any voluntary deductions like 401(k) contributions or health insurance premiums. This calculator estimates federal deductions — state income tax varies by state and is not included.
Contributing to a traditional 401(k), HSA, or FSA reduces your taxable income, meaning you pay less federal income tax. A $200/month 401(k) contribution doesn't reduce your paycheck by $200 — it reduces it by only $200 minus the taxes you would have paid on that amount.
Your W-4 form determines how much federal tax your employer withholds. Claiming more allowances reduces withholding (larger paycheck, potential tax bill at filing). Claiming fewer increases withholding (smaller paycheck, potential refund). Aim to withhold approximately what you'll actually owe.