Withholding method

Your employer picks the method. The flat rate withholds 22% (37% on supplemental wages over $1,000,000 in a year); aggregate adds the bonus to a paycheck and withholds on the total.

Before taxes and deductions, not counting this bonus.

Optional. Adds an estimate of the extra state income tax; local taxes aren’t included.

Pre-tax (traditional) 401(k). Leave at 0 if your bonus isn’t deferred.

Pay so far this year (optional)

Before this bonus. It sets how much of the bonus is under the Social Security wage base and over the $200,000 Additional Medicare line.

Other bonuses, commissions and similar pay from the same employer. Only matters near the $1,000,000 mandatory-rate line.

Bonus after taxes

$7,035.00

$10,000 bonus, flat-rate method: $2,200 federal income tax, $765 Social Security & Medicare

Federal income tax withheld

$2,200

Social Security & Medicare

$765

Taxes as a share of the bonus

29.7%

Extra federal tax for the year

$1,550

You take home: 70.3%Federal income tax: 22.0%Social Security: 6.2%Medicare: 1.5%$7,035take-home
You take home
$7,035.00
Federal income tax
$2,200.00
Social Security
$620.00
Medicare
$145.00
Gross bonus
$10,000.00

Withheld vs. what you will really owe

Federal income tax withheld from the bonus
$2,200.00
Extra federal income tax the bonus adds for the year
$1,550.00
Withheld above the extra tax
$650.00
Bonus you keep after this year’s tax bill (estimate)
$7,685.00

About $650 more federal income tax is withheld from the bonus than it adds to your 2026 tax bill. If the rest of your withholding is on target, that comes back as a larger refund or a smaller balance due when you file.

Flat rate vs. aggregate on this bonus

MethodFederal withholdingTake-homeOver (+) / under (−) the extra tax
Flat-rate method$2,200.00$7,035.00+$650.00
Aggregate method$2,696.70$6,538.30+$1,146.70

Your employer chooses which method to use; ask payroll. Both are only withholding: the tax you owe is settled on your return.

Assumes a standard Form W-4 with no extra adjustments, the 2026 standard deduction, no dependents and no income other than your pay. Your employer’s payroll system decides the exact withholding.

No state selected, so state income tax is not included. States set their own bonus withholding rules; choose your state to see an estimate of the extra tax.

How this was figured
Regular pay per year
$60,000
Regular pay per paycheck (26 a year)
$2,307.69
Bonus subject to income tax withholding
$10,000.00
Federal income tax on the year without the bonus
$5,020
Federal income tax on the year with the bonus
$6,570
Federal tax bracket on the last dollar of the bonus
22%
Social Security rate / wage base
6.2% / $184,500
Medicare rate
1.45%

Bonus Tax Calculator by SureCalcs