Bonus Tax Calculator

Bonus Tax Calculator

→ Enter your bonus amount to see your tax breakdown.

Flat Rate vs. Aggregate Method

Flat Rate (22%): The IRS allows employers to withhold a flat 22% federal tax on supplemental wages up to $1 million. Most common.

Aggregate Method: Your bonus is added to your regular paycheck and taxed at your marginal bracket. May result in different withholding depending on your income.