Calculate your take-home pay from bonuses, commissions, and one-time payments. Compare flat-rate withholding vs. marginal rate methods. | No registration · Data never leaves your device
Zero dependencies · Works offlineUS federal tax rates shown. Federal bonus withholding: 22% (under $1M) or 37% (over $1M). FICA: 6.2% SS + 1.45% Medicare.
In the US, employers typically use the percentage method: 22% flat withholding for bonuses under $1 million, or 37% for amounts over $1M. Alternatively, bonuses can be combined with regular wages and taxed at your marginal rate.
Bonuses are also subject to FICA: Social Security (6.2% up to $168,600 for 2026) and Medicare (1.45%, plus 0.9% additional over $200K). This calculator includes FICA estimates.
The flat 22% withholding may over-withhold if you're in a lower bracket, or under-withhold if in a higher bracket. Your actual tax is determined when you file — this calculator helps you estimate your true take-home.