The Washington bonus tax calculator at the top of this page uses the supplemental tax rate so employers can easily figure out the net pay (or take-home pay) your employee should take home for wage payments such as bonus pay.
Behind the numbers
Behind the numbers
Updated: July 12, 2025
Does Washington tax bonuses?
No. Washington does not have a personal income tax, so bonuses aren’t subject to state withholding. Since there’s no general income tax withholding law for private employers, Washington has no special rules for taxing supplemental wages like bonuses.
How to calculate bonus tax in Washington
Apply the federal flat rate of 22% if the bonus is paid separately. No state income tax applies.
What is the bonus tax rate in Washington?
22% federal only. There’s no state or local income tax.
How can employers in Washington pay bonuses to employees?
Bonuses in Washington can be paid via:
- Check
- Direct deposit
- Pay card
How do bonuses work in Washington?
Bonuses are treated as wages for federal purposes and reported on Form W-2. No state withholding is required.
Why are bonuses taxed differently than standard pay?
They aren’t — Washington doesn’t apply any income tax to wages or bonuses.
How much tax is taken out of a bonus in Washington?
Only federal withholding applies. For example, if you give an employee a $4,000 bonus, $880 (22%) would be withheld for federal taxes — but nothing for Washington, since the state doesn’t have an income tax.