Apply a supplemental withholding rate to a bonus to estimate tax withheld and net bonus.
Overview
Employers often withhold tax on bonuses using a flat supplemental rate rather than your normal paycheck method.
Enter bonus amount and withholding rate (commonly 22% federal supplemental in many U.S. cases—confirm current rules). The tool shows withheld tax and net bonus.
Withholding is not final tax due. Your return may refund excess or require more depending on total income.
Steps
Gross bonus before withholding.
Supplemental or expected withholding percent.
Review tax withheld and net bonus.
Test 22% vs a higher combined state+federal rate.
Budget from the net figure, not the gross announcement.
Math
taxWithheld = bonus × (withholdingRate / 100); netBonus = bonus − taxWithheld
Withholding is bonus times the rate; net bonus subtracts that amount.
Worked cases
Withheld $1,100; net $3,900
$1,100 withheld.
Withheld $1,500; net $3,500
$1,500 withheld.
Withheld $4,400; net $15,600
$4,400 withheld.
Why use this
Questions