Why Is My Bonus Taxed So High? The 22% Myth (2026)
Your bonus was not taxed at 40%. See why the flat 22% federal supplemental rate plus FICA and state withholding gutted your check, and what comes back.
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Disclaimer: This article is for educational purposes only and is not tax, legal, or financial advice. Tax rules change periodically, always check current IRS/state guidance or consult a professional.
You were told you were getting a $5,000 bonus. Then the deposit hit and it was closer to $3,000. Somewhere between the announcement and your bank account, roughly 40 cents of every dollar vanished, and nobody in payroll volunteered an explanation.
Your bonus was not taxed at a higher rate. It was withheld at a higher rate, which is a different thing entirely. The gap between the 22% you have probably read about and the 40% you actually felt has a specific, boring explanation made of four stacked layers.
Let’s take the check apart.
The 22% rule: withholding, not a tax rate
The IRS classifies bonuses, commissions, retroactive raises, and severance as supplemental wages. For these payments, IRS Publication 15 (Circular E) hands employers a shortcut: withhold a flat percentage instead of running the money through your W-4 and the regular wage bracket tables.
For 2026, that flat rate is:
| Supplemental wages | Flat withholding rate |
|---|---|
| Up to $1,000,000 (cumulative for the year) | 22% |
| Portion above $1,000,000 | 37% |
Note the word withholding. Withholding is a deposit toward a bill that has not been calculated yet. Your actual federal income tax is not determined by how your employer labeled a payment. It is determined by your total annual income, your filing status, and your deductions, all reconciled when you file your return.
So the bonus itself has no special tax rate. There is no “bonus tax.” A $5,000 bonus and $5,000 of salary produce identical tax liability at the end of the year. The only thing that changed was how aggressively your employer prepaid on your behalf.
That distinction is the whole article. Everything below is either why the prepayment feels so brutal, or what happens to the excess.
Why it feels like 40%, not 22%
Because more than one thing came out of that check. The 22% is only the federal income tax layer. Stack the rest of it on a $5,000 bonus for a single filer earning $55,000, in a state that withholds 5% on supplemental wages:
| Line item | Rate | Amount |
|---|---|---|
| Federal income tax (supplemental flat rate) | 22% | $1,100.00 |
| Social Security | 6.2% | $310.00 |
| Medicare | 1.45% | $72.50 |
| State supplemental withholding (illustrative) | 5% | $250.00 |
| Total withheld | 34.65% | $1,732.50 |
| Deposited | $3,267.50 |
Already 34.65%, and we have not touched benefits yet. Add a 6% traditional 401(k) deferral and another $300 leaves before the money reaches you. Between taxes and that deferral, roughly $2,000 of a $5,000 bonus disappears and about $3,000 shows up.
That is your 40%: four or five ordinary deductions landing at once on a payment you happened to be watching closely for the first time.
A few things move this number for you specifically:
- Social Security stops at the wage base. For 2026 that is $184,500. If your year-to-date wages already cleared it, the 6.2% line is zero and your bonus withholding drops by that much. Our guide to FICA taxes covers how the cap works.
- State supplemental rates vary a lot. The nine states with no wage income tax take 0%, which drops the stack to 29.65% (Washington still deducts its Paid Family and Medical Leave and WA Cares premiums on top). Among states that do publish a flat supplemental rate the spread is wide, from about 1.5% in North Dakota to 10.23% on bonuses in California and 11.7% in New York. Plenty of other states publish no supplemental rate at all and make payroll withhold from the regular tables instead.
- High earners get an extra layer. Wages above $200,000 (single or head of household) pick up the 0.9% Additional Medicare Tax, and a bonus is often the payment that crosses that line.
- Pre-tax deductions come off the same check. A 401(k) deferral or HSA contribution taken from a bonus is not a tax, but it still shrinks the deposit, and most people mentally file it under “taxes.”
You can run your own version of this stack with the bonus tax calculator before the check arrives, so the number is not a surprise twice.
Percentage method vs. aggregate method
This is the part that explains the office argument. Two coworkers, identical $5,000 bonuses, visibly different take-home. Neither payroll department is wrong.
The IRS permits employers two ways to withhold on supplemental wages.
The percentage method (flat rate)
Available when the bonus is paid as a separate payment from regular wages. Withhold a flat 22% on the bonus. Predictable, and the reason 22% is the number everyone quotes.
The aggregate method
Used when the bonus is combined with a regular paycheck. Payroll adds the bonus to your regular wages for that period, then withholds on the combined total using your W-4 and the tables in IRS Publication 15-T, subtracting what it already withheld on the regular wages.
The aggregate method has a quirk. Withholding tables work by annualizing: they assume the check in front of them is what you earn every pay period. Drop a $5,000 bonus onto a $2,100 biweekly check and the system briefly believes you earn about $185,000 a year, and withholds accordingly. That can pull noticeably more than 22%.
It can also pull less. A part-time or lower-paid worker whose annualized combined check still lands in the 10% or 12% bracket may see far less than 22% withheld under the aggregate method.
So the same gross bonus can be withheld at 12% or 30% depending on payroll’s choice, and you have no say in it. The mechanics of both methods, applied across overtime and commissions too, are covered in our piece on overtime, bonus, and commission take-home pay.
The refund: when over-withholding comes back
For most people, this part ends well.
Take that single filer earning $55,000 with a $5,000 bonus. Total 2026 income: $60,000. Subtract the $16,100 standard deduction and taxable income is $43,900, which sits inside the 12% bracket (the 22% bracket does not start until $50,400 for a single filer).
So what did the bonus actually cost in federal income tax?
| Amount | |
|---|---|
| Federal income tax withheld on the bonus (22%) | $1,100 |
| Federal income tax the bonus actually added (12% marginal) | $600 |
| Over-withheld | $500 |
That $500 was not lost. It sits with the Treasury until you file, then comes back as a larger refund or a smaller balance due. The bonus was withheld at 22% but taxed at 12%, because your marginal rate (the rate on your last dollar) is what determines the cost of extra income. For a single filer that rate sits below 22% up to $50,400 of taxable income, and it does not climb above 22% until taxable income passes $105,700.
Two caveats before you spend that refund:
- FICA never comes back. The $310 of Social Security and $72.50 of Medicare are actual taxes on the bonus, not prepayments. No refund mechanism exists for them unless you overpaid the Social Security wage base across multiple jobs.
- The refund assumes your other withholding is accurate. If your regular paychecks are already under-withheld, the bonus surplus just fills that hole instead of coming back to you.
If you want to see where you actually land, the tax refund estimator models the full year, and the marginal vs. effective tax rate calculator shows the gap between your top bracket and your real average rate. The concept behind it is unpacked in effective vs. marginal tax rate.
When you might actually owe more
Most articles stop at “you’ll get it back.” That is wrong for a meaningful slice of readers.
The same 22% gets applied to people with wildly different marginal rates. If yours is above 22%, the flat rate under-withholds and you owe the difference in April.
Say a single filer earns $180,000 in salary plus a $20,000 bonus. Taxable income after the standard deduction is $183,900, landing in the 24% bracket. The bonus was withheld at 22% ($4,400) but costs 24% ($4,800). That is $400 under-withheld on the bonus alone, and the gap widens for anyone in the 32%, 35%, or 37% brackets.
The 2026 single-filer brackets, for reference:
| Rate | Taxable income (single) |
|---|---|
| 10% | $0 to $12,400 |
| 12% | $12,400 to $50,400 |
| 22% | $50,400 to $105,700 |
| 24% | $105,700 to $201,775 |
| 32% | $201,775 to $256,225 |
| 35% | $256,225 to $640,600 |
| 37% | Over $640,600 |
Anyone whose taxable income clears $105,700 should assume the bonus was under-withheld, not over-withheld.
Very large bonuses have their own rule. Once cumulative supplemental wages for the year exceed $1,000,000, the employer must withhold 37% on the excess. A $1.2 million bonus sees $220,000 withheld on the first million and $74,000 on the remaining $200,000. That 37% matches the top marginal rate, so it is closer to correct than the 22% layer, though state tax and the Additional Medicare Tax can still leave a balance due.
If you regularly receive commissions rather than annual bonuses, the same flat-rate logic applies payment by payment. The commission tax calculator handles that case.
What you can actually do about it
You cannot argue the 22% down. It is set by the IRS, and payroll has no discretion. But three levers do work.
1. Shrink the taxable bonus before it is paid. If your plan allows a separate deferral election on bonus pay, routing part of it into a traditional 401(k) reduces the wages subject to federal and state income tax withholding. The 2026 elective deferral limit is $24,500, plus an $8,000 catch-up at age 50 or older. Starting in 2026 that catch-up has to go in as Roth if you earned more than $150,000 the prior year. A payroll HSA contribution goes further, since Section 125 contributions reduce FICA-taxable wages too, where a 401(k) deferral does not. Either way, set the election up before the bonus runs.
2. Rebalance with your W-4, not the bonus. If a chronically large refund bothers you, the fix is Step 4 of Form W-4 across your regular paychecks. Reduce extra withholding to offset the bonus surplus, or add extra withholding in Step 4(c) if you are the high earner who ends up owing. Dialing in your W-4 withholding walks through the arithmetic, and how to fill out a W-4 with examples covers the form line by line.
3. Plan the cash flow instead of fighting the math. For a one-time bonus, the simplest move is to assume roughly 60% to 65% of the gross reaches your account and budget from that number. Run it through the bonus tax calculator with your salary and state and you will know the deposit before it lands. Signing bonuses in particular deserve a look before you accept, since clawback terms interact with the withholding: see signing bonus tax and take-home pay.
The frustration is real. The 22% is not, at least not as a tax rate. It is a placeholder your employer parks with the IRS until the actual math gets done.
Related Reading
- Overtime, Bonus, and Commission Take-Home Pay. How supplemental wage withholding works across all three payment types, with the percentage and aggregate mechanics side by side.
- Effective vs. Marginal Tax Rate. Why the rate on your last dollar is what determines the cost of a bonus, and why your average rate is always lower.
- Signing Bonus Tax and Take-Home Pay. What actually lands in your account from a signing bonus, plus how clawback clauses complicate the withholding.
- Why Your Paycheck Went Down After a Raise. The other common “did payroll make a mistake?” moment, explained with the same withholding logic.
Want the numbers on your phone before the next bonus run? Download Pay44 and model the deposit in a few taps.
References
- IRS Publication 15 (Circular E), Employer’s Tax Guide. The supplemental wage flat-rate withholding rule, including the 22% rate and the mandatory 37% above $1,000,000.
- IRS Publication 15-T, Federal Income Tax Withholding Methods. The wage bracket and percentage method tables used by the aggregate withholding method.
- IRS Publication 15-A, Employer’s Supplemental Tax Guide. Withholding rules for special employment situations, including sick pay treated as supplemental wages and when a third-party payer may apply the flat 22% rate.
- SSA: Contribution and Benefit Base. The $184,500 Social Security wage base for 2026 and its annual history.
- IRS Topic No. 751: Social Security and Medicare Withholding Rates. The 6.2% and 1.45% employee FICA rates and the 0.9% Additional Medicare Tax thresholds.
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Frequently Asked Questions
Is my bonus really taxed at a higher rate than my regular paycheck?
No. A bonus is ordinary income and gets taxed at the same rates as your salary when you file. What differs is withholding: the IRS lets employers withhold a flat 22% from supplemental wages instead of running the bonus through your W-4 tables, and that flat rate often takes out more than you actually owe.
Why was 22% withheld from my bonus if I'm in a lower tax bracket?
Because the flat 22% supplemental rate does not look at your bracket. It is one rate the IRS allows employers to apply to any bonus paid separately from regular wages, whether you earn $40,000 or $400,000. Your real liability is settled on your tax return, not on the bonus check.
Will I get the extra bonus withholding back as a tax refund?
The federal income tax portion comes back if your marginal rate is under 22% and the rest of your withholding is on target. The FICA portion does not. Social Security at 6.2% and Medicare at 1.45% are real taxes on the bonus, not prepayments, so those dollars are gone for good.
What's the difference between the percentage method and the aggregate method for bonus withholding?
The percentage method applies a flat 22% to a bonus paid as a separate payment. The aggregate method folds the bonus into a regular paycheck and withholds on the combined total using your W-4 and the IRS wage bracket tables. Both are permitted under IRS Publication 15, and your employer picks which one to use.
Why did my bonus get taxed differently than my coworker's identical bonus?
Usually because one of you had the bonus paid on a separate check and the other had it folded into a regular paycheck, which triggers different withholding methods. W-4 settings, state of residence, 401(k) elections, and year-to-date Social Security wages also change the withheld amount on identical gross bonuses.
Do bonuses over $1 million get taxed at 37%?
Withheld at 37%, not taxed at 37%. Once your cumulative supplemental wages for the year pass $1,000,000, your employer must withhold 37% on the portion above that line, with 22% applying to the amount below it. Your final tax still depends on your total income for the year.
Can I lower the amount withheld from my bonus?
Not the 22% rate itself, since the IRS sets it. What you can change is the amount it applies to: routing part of the bonus into a traditional 401(k) reduces the wages subject to income tax withholding, and a payroll HSA contribution reduces both income tax and FICA withholding. You can also adjust Step 4 of your W-4 to rebalance withholding across the rest of the year.
Does a bonus push me into a higher tax bracket?
Only the dollars above a bracket threshold get the higher rate. A bonus can move part of your income into the next bracket, but it never re-taxes the income sitting below that threshold. The rest of your salary keeps its original rates.