Bonus Tax Calculator 2026
How much of your bonus do you actually keep? See exact federal, FICA, and state withholding — flat 22% vs aggregate method — for all 50 states. Updated for 2026.
Your Bonus Details
IRS flat 22% supplemental wage rate — simple and fast.
Your data is never stored or shared. All calculations happen in your browser.
Estimated Bonus Take-Home
$7,035
of $10,000 bonus · 29.65% effective tax rate
Federal Income Tax
$2,200
22% flat supplemental rate
FICA (SS + Medicare)
$765
7.65% base
State Tax
$0
✓ No state income taxTotal Tax Withheld
$2,965
29.65% of bonus
Using the flat 22% rate. Switch to Aggregate Method above to see your actual marginal rate — it may be higher or lower.
How Bonus Taxes Work in 2026
The IRS classifies bonuses as supplemental wages — income paid in addition to your regular salary. Employers must withhold federal income tax on bonuses using one of two methods: the flat rate or the aggregate method.
Flat Rate Method
The IRS allows employers to withhold a flat 22% on supplemental wages up to $1 million. Simple, predictable, widely used.
Aggregate Method
Your bonus is added to your annual salary to find your marginal bracket. Withholding is the difference in tax between salary alone and salary + bonus.
On top of federal taxes, your bonus is subject to FICA taxes: Social Security (6.2% up to $184,500) and Medicare (1.45%, plus 0.9% additional over $200k). Most states also withhold state income tax on bonuses at either their supplemental rate or your marginal rate.
Keep in mind that withholding is not the same as your final tax bill. When you file your return in April, the IRS reconciles your total withholding against your actual tax liability. If too much was withheld, you get a refund. If too little, you owe the difference.
Equity compensation? Run it through the right calculator.
RSUs, ISOs, and stock sales are taxed differently. Pick the tool that matches your event.
RSU Calculator
Vest income + sell-to-cover shortfall + capital-gains projection if you hold.
Calculate RSU vestISO/AMT Calculator
Federal AMT exposure, exemption phaseout, and your AMT crossover point.
Calculate AMTStock-Comp Tax Guide
RSU vs NSO vs ISO vs capital gains — how each is taxed in plain English.
Read the guideBonus pushed you over $184,500? →
Once your YTD wages cross the Social Security wage base, the 6.2% SS withholding stops. Your late-year paychecks (and any Q4 bonus) keep the SS dollars. Full breakdown.
FICA on bonuses (full breakdown) →
All bonus income is subject to the 7.65% employee FICA (6.2% SS + 1.45% Medicare). Plus 0.9% Additional Medicare above $200K. Same as regular wages — no exemption for supplemental pay.
Frequently Asked Questions
Also Try Our Full Salary Calculator
See your complete annual take-home pay breakdown for all 50 states.