Bonus Tax Calculator — Washington (2026)
Bonuses in Washington are taxed as supplemental wages: the employer usually withholds a flat 22% federal, plus 7.65% FICA — and nothing at the state level, because Washington has no income tax. Withholding is not the final tax; the true cost is settled on your return. Enter your bonus to see both. Washington does not levy a personal state income tax, so the only mandatory withholding on your earnings is federal income tax plus FICA (Social Security and Medicare).
Washington Bonus Tax Calculator
The gross bonus before withholding.
Percentage method vs aggregate method
Under the percentage method the bonus is separated from regular pay and hit with the flat 22% federal rate (37% above $1 million of supplemental wages in a year). Under the aggregate method the employer combines the bonus with your normal check and withholds at your marginal rate — which can temporarily withhold far more than 22%.
Either way the bonus is ordinary income. If your marginal federal bracket is 24% or higher, the 22% flat withholding leaves you short at filing time; if you are in the 12% bracket, you are over-withheld and get it back as a refund.
The Washington layer on bonuses
Washington takes nothing from your bonus. A $10,000 bonus loses only the federal 22% and 7.65% FICA — about $2,965 — leaving roughly $7,035 in hand.
Washington has no income tax on wages, but enacted a 7% capital gains tax (above $262K) in 2022. State sales tax is 6.5% (up to 10.4% locally).
Reducing the tax on a Seattle bonus
Deferring part of the bonus into a 401(k) or HSA cuts federal income tax immediately, though FICA still applies. Some employers allow a separate bonus deferral election — ask payroll before the payment date, not after.
Timing matters too: pushing a bonus into January shifts the tax year, useful if this year included unusually high income from tech work or an equity event.
Local and payroll taxes Washington adds on top
Paid Family and Medical Leave takes roughly 0.42% of wages and WA Cares long-term care insurance another 0.58%. That deduction sits outside the federal and state income tax lines, so build it into your own budget on top of the numbers above.
Washington has no income tax on wages, but enacted a 7% capital gains tax (above $262K) in 2022. State sales tax is 6.5% (up to 10.4% locally).
Bonuses are wages, so every local layer that applies to your regular Washington paycheck applies to the bonus too — which is why a supplemental payment often nets a smaller share than your salary does.
Working across a state line from Washington
Washington has no income-tax reciprocity agreements, so if you live here and work across a state line you generally file a nonresident return in the work state and claim a credit at home to avoid double taxation.
Remote and hybrid work complicates this further: most states tax income where the work is physically performed, so a Seattle resident spending part of the year at a client site in Oregon may owe a nonresident return there. Keep a day-count log if you split time between states.
The rest of your Washington tax bill
Washington charges a 6.5% state sales tax, homeowners pay an average effective property tax of 0.94% of market value, and the minimum wage in force during 2026 is $17.13 an hour.
Seattle's combined rate is about 10.35%, among the highest nationwide.
Income tax is only one part of a state's take. Washington recovers revenue through sales and property tax as well, which is why headline income tax rates alone are a poor guide to how far a salary really goes. With no income tax on wages, retirement distributions are untaxed; only capital gains above $270,000 face the 7% excise tax.
Washington vs Oregon on the same salary
On a $75,000 salary, a single filer keeps about $61,593 a year in Washington against roughly $55,571 in Oregon — a difference of $6,021, or $502 a month.
Effective combined rates are 17.9% in Washington and 25.9% in Oregon. Set that gap against living costs: index 116 here versus 115 there, with property tax at 0.94% and 0.93% respectively.