Bonus tax 2026: 22% withheld is not the rate you pay
Bonuses are usually withheld at a flat 22%, but the tax is set by your bracket. A $20,000 bonus, computed at five salaries, and what the return settles.
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A bonus looks heavily taxed because employers often withhold federal income tax on it at a flat 22% (37% on supplemental pay above $1 million in the year), then take Social Security, Medicare and state tax on top. That 22% is only a withholding rate: the bonus is taxed at your own bracket when you file, so on a $20,000 bonus a single filer earning $40,000 gets $2,000 back and one earning $400,000 owes $2,600 more.
The numbers
Every figure below comes from the MoneyVibe bonus tax calculator. Inputs: a $20,000 bonus paid as a separate check in 2026 to a single filer, no 401(k) deferrals, the 2026 standard deduction ($16,100), no other income or credits, no state tax unless stated, and withholding on the salary itself matching the tax on the salary.
| Salary before the bonus (single filer) | Withheld at 22% | Social Security and Medicare | Paid on the bonus check | Settled on the return | Federal tax really owed on the bonus |
|---|---|---|---|---|---|
| $40,000 | $4,400 | $1,530 | $14,070 | $2,000 refunded | $2,400 |
| $75,000 | $4,400 | $1,530 | $14,070 | $0 | $4,400 |
| $120,000 | $4,400 | $1,530 | $14,070 | $364 owed | $4,764 |
| $200,000 | $4,400 | $470 | $15,130 | $570 owed | $4,970 |
| $400,000 | $4,400 | $470 | $15,130 | $2,600 owed | $7,000 |
The check is the same $14,070 for the first three salaries because withholding ignores the salary: 22% federal plus 7.65% Social Security and Medicare takes $5,930. The return is where salary matters. At $40,000 the bonus lands entirely in the 12% bracket, so it really costs $2,400 of federal tax and $2,000 comes back. At $75,000 it sits in the 22% bracket and withholding is exactly right. At $120,000 it straddles the 22% and 24% brackets, and $364 is owed in April. At $200,000 the first $17,875 of the bonus is taxed at 24% and the last $2,125 at 32%, $4,970 in all, so $570 is owed. At $400,000 the whole bonus is taxed at 35%, so 22% leaves a $2,600 shortfall.
The $200,000 row takes home more on the check than the lower salaries. By then the salary has passed the $184,500 Social Security wage base for 2026, so the bonus carries only Medicare: 1.45% plus the 0.9% Additional Medicare Tax on wages above $200,000, $470 in total instead of $1,530.
The chart adds a flat 5% state income tax ($1,000 on the bonus) to the same five cases and divides the final federal tax, Social Security, Medicare and state tax by the bonus (rounded half up to one decimal). To chart your own scenarios from the calculator's results, ChartGenie, a free chart maker from the same team as MoneyVibe, can plot them. After the return, a $40,000 earner keeps $15,070 of the $20,000 and a $400,000 earner keeps $11,530.
Married couples filing jointly have wider brackets. With the same $20,000 bonus and no state tax, a joint salary of $75,000 gets $2,000 back (12% bracket), $150,000 owes nothing extra (22%), and $250,000 owes $400 (24%).
Above $1 million the rule changes. Supplemental pay beyond $1 million in a calendar year must be withheld at 37%, regardless of the Form W-4. A $1,500,000 bonus on a $500,000 salary is withheld $405,000 (22% on the first $1 million, 37% on the other $500,000), yet the return puts $551,866 of federal tax on it, so $146,866 is still owed.
Why it works this way
IRS Publication 15 (2026), section 7, defines supplemental wages as pay that is not regular wages: bonuses, commissions, severance, awards and back pay among them. If the bonus is identified separately from regular wages and the employer withheld income tax from regular wages this year or last, the employer may withhold a flat 22% ("no other percentage allowed") or use the aggregate method, which adds the bonus to a regular paycheck, figures withholding on the total from the Form W-4 and the Publication 15-T tables, and subtracts the tax withheld from the regular paycheck. Once supplemental wages from the employer pass $1 million in the year, the excess is withheld at 37% with no choice. Publication 15 notes the 22% and 37% rates stay because Public Law 119-21 made the 2017 individual rates permanent.
None of this sets the tax. The bonus is ordinary wage income on the W-2, taxed with everything else on Form 1040 through the 2026 brackets in Revenue Procedure 2025-32: for single filers 22% runs to $105,700 of taxable income, 24% to $201,775 and 32% to $256,225, then 35% and 37% at the top. Withholding is only a prepayment credited against that tax.
Social Security and Medicare are different: they are withheld correctly on a bonus, at 6.2% up to the $184,500 wage base and 1.45% on all wages (Publication 15). Employers add the 0.9% Additional Medicare Tax on wages above $200,000 regardless of filing status; IRS Topic 560 sets the true threshold at $250,000 for joint filers, $125,000 for married filing separately and $200,000 for everyone else, and any difference is settled on Form 8959.
What changes the answer
- Your bracket. It is the main story for federal tax. Withholding is only right when the bonus falls in the 22% bracket; below it you get money back, above it you owe. The tax bracket calculator shows where your taxable income sits.
- Deferring part of the bonus into a 401(k). At $120,000, asking for $10,000 of the bonus to go into a pre-tax 401(k) cuts the check to $6,270 but raises what the bonus is worth after all tax from $13,706 to $16,106, counting the 401(k) dollars at face value, before the tax due when they are withdrawn. The deferral escapes federal income tax now (not Social Security and Medicare; state treatment varies). The plan must allow deferrals from bonuses, and the election has to be in place before the bonus is paid. The 2026 employee limit is $24,500 in total (IRS release IR-2025-111), including what salary deferrals have already used.
- How the employer withholds. The aggregate method can withhold more than 22% on a large bonus, because Publication 15 has the employer figure withholding on the bonus plus the paycheck "as if the total were a single payment for a regular payroll period", which can reach a higher row of the withholding table. The extra comes back on the return; the bonus tax calculator models only the flat 22% and 37% method. Payroll can say which method it uses.
- State tax. States set their own withholding rules and brackets, and some have no income tax; the calculator applies one flat rate you choose. The state income tax comparison shows the range.
What to do first
- Enter the bonus, your salary, any 401(k) deferrals already made and your state rate in the bonus tax calculator. It shows the check, the federal tax really owed and the difference to settle on the return.
- If it shows tax owed, divide that amount by your remaining paychecks this year and add the result as extra withholding in Step 4(c) of a new Form W-4, the method Publication 505 describes. Publication 505 says estimated tax is generally due if you expect to owe at least $1,000 after withholding and your withholding and credits are below the smaller of 90% of this year's tax or 100% of last year's (110% if last year's adjusted gross income was over $150,000, or $75,000 if married filing separately).
- If you expect a refund instead, the money is not lost: it returns when you file. A single filer earning $40,000 gets $2,000 of the $4,400 withheld on a $20,000 bonus back.
Common questions
Is a bonus taxed more than regular salary?
No. A bonus is taxed at the same federal brackets as salary; only the withholding differs. With the 2026 standard deduction and no other income, a single filer earning $75,000 owes exactly the $4,400 withheld on a $20,000 bonus.
Will I get my bonus tax back?
Only the part withheld above your real tax. A single filer earning $40,000 gets $2,000 of the $4,400 withheld on a $20,000 bonus back; one earning $120,000 owes $364 more instead.
Why was so much taken out of my bonus?
Usually it is 22% federal plus 7.65% Social Security and Medicare about 30%, plus state tax on top. Supplemental pay above $1 million in a year from one employer (including businesses under common control) is withheld at 37%, and the aggregate method can also withhold more than 22%.
How much tax is taken out of a $20,000 bonus?
With the flat method, $4,400 of federal income tax plus $1,530 of Social Security and Medicare (or $470 once salary is past the $184,500 wage base and $200,000), before any state tax.
Do Social Security and Medicare taxes come back on a bonus?
Usually not: they are withheld at the correct rates of 6.2% and 1.45%. Two exceptions are settled on the return: the 0.9% Additional Medicare Tax withheld above $200,000 of wages when a married couple's combined wages stay under $250,000 (Form 8959), and Social Security withheld above the $184,500 base when two or more employers paid you in the year (Publication 505).
What this does not model
The aggregate withholding method, credits and their phase-outs, other income, itemized deductions, catch-up contributions, state brackets (state tax is one flat rate), Social Security overpaid across two employers, and the salary's own withholding. Federal tax on the bonus is the tax with it minus the tax without it.
Next steps: run your own figures in the bonus tax calculator, read the library chapter withholding and quarterly taxes, or see the glossary entries for tax withholding, the marginal tax rate and FICA tax.
Not tax or legal advice. Federal rules as published by the IRS in Publication 15 (2026), Publication 505 (2026), Topic 560 and Revenue Procedure 2025-32, read on October 17, 2026; confirm with a tax professional before acting.