Bonus tax calculator
Estimate your take-home pay on a bonus after the 22% federal supplemental rate, FICA, and state tax.
Common questions
How are bonuses taxed?
For federal withholding, most employers use the 22% flat supplemental rate on bonuses up to $1 million (37% above that). Bonuses are also subject to Social Security (6.2%), Medicare (1.45%), and state income tax. The 22% is withholding, not necessarily your final rate, which is reconciled on your annual return.
Why was my bonus taxed so high?
The flat 22% federal supplemental withholding can be higher than your normal paycheck rate, which makes a bonus feel heavily taxed. If your actual marginal rate is lower, you get the difference back at tax time.
Paid on commission instead
A commission is a supplemental wage too, so the same flat federal rate applies, but the state side is different. The commission tax calculator carries per-state supplemental withholding rates read from each state's own 2026 guide or statute, runs the aggregate method next to the flat method, and shows what the check really costs you at filing time.