You'd take home about $7,035 of a $10,000 bonus
Federal supplemental withholding is a flat 22% ($2,200), plus $765 of Social Security and Medicare. That leaves $7,035 in your account.
See the flat 22% federal withholding on a bonus, what lands in your account, and how it settles at filing.
Take-home bonus
$7,035
After withholding and any deferral.
Flat 22% supplemental rate.
At your 24% rate.
Federal supplemental withholding is a flat 22% ($2,200), plus $765 of Social Security and Medicare. That leaves $7,035 in your account.
The single most common misconception about bonuses is that they're taxed at a higher rate. They aren't. The flat 22% is a withholding shortcut for supplemental wages; your bonus is ultimately taxed as ordinary income at your marginal rate like any other pay. At your 24% rate, the true liability is $2,400, so you'd owe about $200 more at filing.
If your employer allows a separate bonus deferral, routing even 25% ($2,500) into your 401(k) would save about $600 in federal tax and send the money to retirement instead. Bonuses are ideal for this because you haven't built the money into your budget — it's the least painful way to save.
A large bonus can shift your total withholding for the year in either direction. See whether you're on track for a refund or a bill.
W-4 withholding calculatorWorked scenarios with the full analysis, so you can see how the numbers move before entering your own.
A typical annual bonus where flat withholding slightly overshoots the real liability.
Take-home bonus
$7,035
Federal supplemental withholding is a flat 22% ($2,200), plus $765 of Social Security and Medicare. That leaves $7,035 in your account.
The single most common misconception about bonuses is that they're taxed at a higher rate. They aren't. The flat 22% is a withholding shortcut for supplemental wages; your bonus is ultimately taxed as ordinary income at your marginal rate like any other pay. At your 24% rate, the true liability is $2,400, so you'd owe about $200 more at filing.
If your employer allows a separate bonus deferral, routing even 25% ($2,500) into your 401(k) would save about $600 in federal tax and send the money to retirement instead. Bonuses are ideal for this because you haven't built the money into your budget — it's the least painful way to save.
The same bonus with state income tax withheld on top of federal.
Take-home bonus
$6,435
Federal supplemental withholding is a flat 22% ($2,200), plus $765 of Social Security and Medicare and $600 of state tax. That leaves $6,435 in your account.
The single most common misconception about bonuses is that they're taxed at a higher rate. They aren't. The flat 22% is a withholding shortcut for supplemental wages; your bonus is ultimately taxed as ordinary income at your marginal rate like any other pay. At your 24% rate, the true liability is $2,400, so you'd owe about $200 more at filing.
If your employer allows a separate bonus deferral, routing even 25% ($2,500) into your 401(k) would save about $600 in federal tax and send the money to retirement instead. Bonuses are ideal for this because you haven't built the money into your budget — it's the least painful way to save.
Routing part of the bonus into retirement, cutting the taxable amount.
Take-home bonus
$5,770
Federal supplemental withholding is a flat 22% ($2,200), plus $1,530 of Social Security and Medicare and $500 of state tax, after deferring $10,000 to your 401(k). That leaves $5,770 in your account.
The single most common misconception about bonuses is that they're taxed at a higher rate. They aren't. The flat 22% is a withholding shortcut for supplemental wages; your bonus is ultimately taxed as ordinary income at your marginal rate like any other pay. At your 32% rate, the true liability is $3,200, so you'd owe about $1,000 more at filing.
Routing $10,000 of the bonus into your 401(k) keeps it out of taxable income entirely, saving roughly $3,200 at your marginal rate — and it goes straight to retirement instead of being spent. Note FICA still applies to the full bonus. Many employers let you set a separate deferral rate for bonuses.
Someone whose marginal rate exceeds the flat 22% withholding, so they'll owe more at filing.
Take-home bonus
$35,175
Federal supplemental withholding is a flat 22% ($11,000), plus $3,825 of Social Security and Medicare. That leaves $35,175 in your account.
The single most common misconception about bonuses is that they're taxed at a higher rate. They aren't. The flat 22% is a withholding shortcut for supplemental wages; your bonus is ultimately taxed as ordinary income at your marginal rate like any other pay. At your 35% rate, the true liability is $17,500, so you'd owe about $6,500 more at filing.
If your employer allows a separate bonus deferral, routing even 25% ($12,500) into your 401(k) would save about $4,375 in federal tax and send the money to retirement instead. Bonuses are ideal for this because you haven't built the money into your budget — it's the least painful way to save.
A bonus is ordinary income, taxed at the same rates as your salary. What's different is the withholding. The IRS classifies bonuses as 'supplemental wages', and the most common approach — the percentage method — withholds a flat 22% federally (37% on amounts above $1 million), regardless of your actual bracket.
That flat rate is why bonuses feel taxed more heavily. If your marginal rate is 12% or 22%, the withholding is close to right or even generous. If your marginal rate is 32% or 35%, the flat 22% under-withholds and you'll owe the difference at filing. Either way, the eventual tax is your ordinary rate — the withholding is just an estimate that settles up on your return.
Bonuses are the ideal money to save, precisely because you haven't built them into your monthly budget. Many employers allow a separate 401(k) deferral election for bonuses — routing part or all of it into retirement keeps it out of taxable income entirely, saving your full marginal rate while sending the money somewhere useful. Note that Social Security and Medicare still apply even to deferred amounts.
The aggregate method is the other withholding approach some employers use, combining the bonus with regular pay and withholding as if that were your normal paycheck. It often withholds more than the flat rate for a large bonus, which can feel worse but is frequently closer to the correct amount for high earners. Either way, the difference resolves on your tax return — a large withholding on a bonus is not money lost.
The flat 22% is withholding, not a tax rate. Bonuses are ordinary income and settle at your normal rate on your return.
Withholding takes roughly 30% before it reaches you. Budget from the net figure, not the announced bonus.
Many employers allow a separate bonus deferral. It's the least painful way to save and cuts tax at your full marginal rate.
High earners are under-withheld by the flat 22%. If your rate is 32%+, set some aside for the difference.
Deferring to a 401(k) avoids income tax but not Social Security and Medicare, which apply to the full bonus.
A bonus is ordinary income taxed at your normal marginal rate. What differs is withholding: employers typically withhold a flat 22% federally under the supplemental wage rules (37% above $1 million), plus 7.65% for Social Security and Medicare. Any difference between that withholding and your real liability settles on your tax return.
That's not a special bonus tax rate — it's the flat federal withholding rate for supplemental wages, a shortcut employers use instead of calculating your exact bracket. Your bonus is ultimately taxed as ordinary income. If your marginal rate is below 22% you'll get some back; if it's above, you'll owe the difference at filing.
Roughly $7,000–7,200 federally: about $2,200 in flat federal withholding plus $765 in Social Security and Medicare. State income tax, where it applies, reduces it further. Deferring part of the bonus to a 401(k) increases what you keep by removing it from taxable income.
You can't avoid it, but you can defer it. Contributing part or all of a bonus to a traditional 401(k) or HSA removes it from taxable income for the year, saving your full marginal rate. Social Security and Medicare still apply. Many employers allow a separate deferral election specifically for bonuses.
If your marginal rate is below the flat 22% withholding, yes — the excess comes back as part of your refund. If your rate is higher, you'll owe the difference instead. The flat withholding is only an estimate; your actual liability is calculated on your return using your ordinary rates.
The next calculations that usually follow this one.
Estimate whether your current withholding leaves you with a refund or a bill — and what to change on your W-4.
Federal tax, FICA, state tax and deductions — see exactly what lands in your account.
Bracket-by-bracket breakdown, your effective rate, and what the next dollar costs.
See what your contributions and your employer's match grow into — and whether you're leaving free money on the table.
See your new salary and the annual, monthly and weekly increase — plus what's left after inflation.
Guides that explain the decisions behind these numbers.
How US federal tax brackets work, the difference between marginal and effective rates, and the deductions and accounts that actually reduce your bill.
Updated January 15, 2026
How to build a budget on take-home pay using the 50/30/20 framework, account for irregular annual costs, and fix the categories that actually matter.
Updated January 15, 2026
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