Pick a bonus amount to see its take-home pay after the flat 22% federal withholding and FICA — or use the bonus tax calculator for your exact number by salary and state.
Employers withhold tax on bonuses using the IRS percentage method: a flat 22% federal rate(not your normal rate), plus Social Security and Medicare. That's why a bonus check looks so much smaller than the headline number. It's withholding, not a special tax — your true bonus tax is your marginal rate, and any excess comes back at filing. The amounts below use the flat-rate method, federal + FICA.
Flat 22% federal withholding + FICA, before state tax. Your final tax is your marginal rate.
Using the flat-rate method employers apply, about 70% of a typical bonus reaches your check: 22% is withheld for federal income tax and 7.65% for FICA, before any state tax. Your final tax is your normal marginal rate, so over-withholding is refunded at filing.
It isn't taxed at a special rate — it's withheld differently. Bonuses are 'supplemental wages,' and most employers withhold a flat 22% federal rate plus FICA, which can feel like 30–40% with state tax. At tax time the bonus is ordinary income at your marginal rate.
Use the bonus tax calculator and enter your salary, state, and filing status. It compares your annual take-home with and without the bonus to show your true take-home, which is usually more than the flat-rate withholding leaves.
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