Why Is My Bonus Paycheck Withheld at 22%? 2026 Bonus Tax Explained
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A bonus check can have a surprisingly large federal withholding line. That number is a prepayment toward your annual tax, and it depends on how your employer pays and identifies the bonus. Here is how to read the check and what to review next.
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A bonus is wage income; withholding is not the final tax
A bonus is generally taxable compensation. It can be subject to federal income-tax withholding, Social Security and Medicare, and applicable state or local taxes. The amount deposited is the bonus after the deductions shown on your pay stub. Benefits or other deductions can also affect the check.
Federal withholding is money sent toward the tax ultimately calculated on your return. It is not a separate final “bonus tax” that automatically determines your annual tax on that payment. Your return combines relevant income for the year and applies the rules for your filing status, deductions, credits and other circumstances.
For example, assume a $5,000 bonus is eligible for, and the employer chooses, the optional 22% federal supplemental-wage withholding method. The federal income-tax withholding on the bonus would be $1,100. That calculation does not tell you the final tax attributable to the bonus. The result on the return also depends on your other income, withholding, payments, credits and tax rules.
The IRS employer's tax guide describes bonuses as supplemental wages and explains when each withholding method applies. The examples here concern federal income-tax withholding for employees in 2026. They do not calculate a specific worker's full payroll or tax return.
When an employer can use the 22% method
The 22% figure is a federal income-tax withholding rate used in a particular supplemental-wage method. It is not a general rule that every bonus must be withheld at 22%. How the employer identifies the bonus and whether federal income tax was withheld from regular wages affect the available method.
Under the rules in IRS Publication 15 for separately identified supplemental wages at or below the applicable $1 million threshold, an employer that withheld federal income tax from the employee's regular wages in the current or immediately preceding calendar year may use the flat 22% method or the alternative aggregate method described by the IRS. The employee does not simply choose any flat rate.
If regular and supplemental wages are combined without identifying the amount of each, the employer generally withholds as if the total were a single payment for the regular payroll period. The IRS also specifies what to do when no federal income tax was withheld from regular wages in the relevant period. Payroll should apply the method applicable to the actual facts.
The $1 million rule is separate. To the extent supplemental wages paid to an employee during the calendar year exceed $1 million, the IRS requires withholding at 37% under the stated rules. The IRS describes aggregation for businesses under common control. The threshold concerns supplemental wages under those rules; it is not a statement that all wages over $1 million are automatically a bonus.
Read Publication 15, section 7 for the full conditions. When reviewing your own check, ask payroll whether the bonus was identified separately and which method it used. A single percentage calculated by dividing the deposit difference by the bonus does not reveal every component.
Why a combined paycheck can have different withholding
When the employer uses the aggregate method, it combines relevant regular and supplemental wages for the withholding calculation and accounts for withholding on the regular wages as prescribed by the IRS. This can produce a different federal withholding amount from the optional flat method. The calculation depends on the payroll period, the wages combined and the employee's Form W-4.
Imagine regular biweekly wages of $3,000 and a separately identified $2,000 bonus. One eligible approach might calculate federal income-tax withholding on the $2,000 bonus at 22%, or $440, in addition to withholding on regular wages. Another permitted approach may combine the relevant wages and use the withholding method described in Publication 15. We cannot calculate that second result from the two wage amounts alone: W-4 entries, the payroll method and other details matter.
If an employer pays $5,000 in one regular-period payment without separately specifying regular and supplemental amounts, the employer generally treats the total as regular wages for that payroll period for withholding purposes. The resulting withholding can be larger than the amount on a typical $3,000 check because the payroll calculation is applied to the larger period amount.
That does not mean all of your annual income has moved into a higher tax bracket. Progressive brackets apply to taxable income in bands on the return. A large check can affect withholding for that period without settling the full-year tax. The IRS withholding estimator is designed to consider a broader annual picture.
Use the actual pay date and pay frequency when asking payroll about the calculation. A bonus paid in a separate run, a bonus combined with regular wages and a retroactive wage adjustment may appear differently on a stub. The rules also distinguish a payment's identification from whether it appears on the same bank deposit.
Social Security and Medicare can also be withheld
The 22% method concerns federal income-tax withholding. It does not include Social Security or Medicare. Bonuses that are covered wages can also be subject to those payroll taxes, and the employer may show them as separate lines.
For 2026, the ordinary employee Social Security rate is 6.2% on covered wages up to $184,500. The regular employee Medicare rate is 1.45% on Medicare wages, with no equivalent wage ceiling. An employer generally begins withholding Additional Medicare Tax at 0.9% on Medicare wages it pays an employee above $200,000 in a calendar year. See IRS Topic 751 and the SSA 2026 fact sheet.
In a simple scenario, assume the full $5,000 bonus is subject to both regular FICA portions, the worker has not reached the Social Security wage base and Additional Medicare Tax does not apply. Social Security withholding would be $310 and regular Medicare withholding $72.50. If the optional federal 22% method also applies, the three federal lines would total $1,482.50: $1,100 plus $310 plus $72.50. Before state taxes, benefits or other deductions, the illustrative remaining amount would be $3,517.50.
Change the facts and the result changes. If only $1,000 of the bonus remains below the Social Security wage base, the Social Security portion on that $1,000 would be $62, not $310, under the simplified assumption. Medicare generally continues on covered wages. If the employee's Medicare wages cross the employer's Additional Medicare withholding threshold, an additional amount can apply to wages above that threshold.
Taxable wages may differ from gross compensation because of the nature of benefits or other items. Ask payroll which wage amounts it used. The employer's matching Social Security and Medicare contributions are generally separate employer payments and should not be counted as an extra deduction from the employee's deposit.
State taxes and benefits can change the deposit too
State income-tax withholding is a separate calculation. Some states have specific supplemental-wage withholding rules; local taxes and mandatory payroll programs can also apply. A state that does not tax wages through an individual state income tax can still have other deductions. Use the relevant state tax agency and your pay stub for your circumstances.
Retirement plan elections can also affect a bonus check. Some plans apply an employee's contribution percentage to eligible bonus compensation, while plan terms and payroll elections may differ. A retirement deduction reduces the deposit, but it is not identical to income-tax withholding. Ask the plan administrator whether the bonus is eligible compensation and how the election applies.
A traditional 401(k) deferral generally reduces federal income-tax wages while remaining subject to Social Security and Medicare. A Roth contribution has different federal income-tax treatment. The IRS retirement-plan FAQ compares employee and employer contribution treatment.
Other items can include insurance, garnishments, loan repayments or employer-specific deductions. Do not assume every item is a percentage of the bonus or that every “pre-tax” benefit reduces every wage base. Review the plan's terms and the current and year-to-date figures on the stub.
A useful comparison is to list each line in dollars: gross bonus; federal income-tax withholding; Social Security; Medicare; state and local withholding; and benefits or other deductions. The total of those deductions explains the deposit more clearly than calling the entire difference “bonus tax.”
How the bonus fits into your annual tax return
Suppose a worker expects a simplified annual federal income-tax liability of $9,000 after including all relevant wages and deductions. Assume the worker has $8,800 in federal income tax withheld from regular wages and bonus payments, with no other payments, refundable credits, additional taxes or penalties. Under those assumptions, the worker has a $200 balance due.
Now assume the same $9,000 liability but $9,300 of withholding. Under the same simplified assumptions, the difference is a $300 refund. In neither case can we identify a guaranteed bonus refund from the bonus withholding line alone. The examples omit many factors that can appear on an actual return.
At filing, the employee generally uses the employer's Form W-2 and other relevant forms. W-2 Box 2 reports federal income-tax withholding; the return instructions explain where to enter it. Keep records from every employer and any estimated payments. The IRS W-2 instructions explain the wage and withholding boxes.
If you expect a material bonus, run a withholding check while there are still pay periods left. Include wages and withholding already received and estimate the remaining regular and bonus payments. The IRS estimator's income guidance explains how to enter expected future bonus pay and its limitations for very high bonus amounts.
An estimate is only as good as the information entered. If the bonus amount, timing or other income changes, update the estimate. A professional can help when multiple jobs, business income, substantial investment income or other complications make the return harder to project.
Should you change your W-4 before a bonus?
A Form W-4 affects federal income-tax withholding. It does not change the Social Security and Medicare rates or make the bonus nontaxable. If the employer uses the optional flat supplemental-wage method, the W-4 does not simply replace that rate with a percentage you choose.
Use the IRS estimator to consider your expected annual income and payments. If it recommends an adjustment, follow the instructions for the current form and submit a valid W-4 to your employer. Step 4(c) is an additional withholding amount per pay period; Step 4(b) has a different purpose and is an annual deductions adjustment. Do not enter a desired refund or balance directly into an unrelated field without following the form instructions.
Ask payroll when a new W-4 will take effect. If a bonus is imminent, the employer may have processing deadlines, and the supplemental-wage method may still determine withholding on the bonus. Check the next affected regular pay stub and revisit the estimate if expected income changes.
Do not claim exempt status merely to increase a bonus deposit. Exemption has eligibility requirements stated on Form W-4. An inappropriate exemption can leave too little tax paid during the year and may create a balance or penalty. The IRS Form W-4 and Publication 505 provide the applicable instructions.
If you have already received the bonus, use the actual year-to-date withholding rather than treating the bonus as an expected future payment again. Project only payments still to come. That avoids counting the same wages and withholding twice.
A bonus-paycheck checklist
- Find the bonus gross amount and pay date.
- Check whether the bonus and regular wages are separately identified on the stub.
- Record federal income-tax withholding separately from Social Security and Medicare.
- Check the Social Security year-to-date wage base and any Additional Medicare withholding.
- List state, local and benefit deductions that affect the deposit.
- Ask payroll which federal supplemental-wage method was applied.
- Use current year-to-date figures and the IRS estimator for a full-year withholding check.
- Keep the pay stub and compare the withholding with the W-2 when it arrives.
For a deposit question, ask payroll about the specific line and date. For a return question, include all relevant income and payments; a bonus stub alone cannot determine the refund or balance due.
Common questions about bonus withholding
Are all bonuses withheld at 22%?
No. The 22% rate is an optional federal income-tax withholding method when the IRS conditions are met. Other supplemental-wage methods or the mandatory rule for amounts above the specified threshold may apply. State withholding and FICA are separate.
Will I get the 22% back when I file?
Not automatically. Withholding is credited against the tax and other amounts calculated on the return. Whether a refund results depends on all income, payments, credits and relevant tax rules.
Is a bonus taxed twice?
A bonus can appear on a pay stub and later on a W-2, but the W-2 reports annual wages and withholding; it does not by itself impose a second tax on the same payment. Check the forms and pay records if a reported amount appears duplicated.
Why did Social Security stop on my bonus check?
One possible reason is that covered wages from that employer reached the annual Social Security wage base. Regular Medicare generally continues because it does not have the same cap. Confirm the year-to-date wage figures with payroll.
Can a bonus put every dollar of my salary into a higher bracket?
No. Federal income-tax brackets are progressive: the applicable rate for a band generally applies to taxable income in that band. The bonus may raise annual taxable income, but crossing a threshold does not retroactively apply the higher rate to every dollar below it.
Can a paycheck calculator predict my exact bonus deposit?
Only if it models the employer's actual supplemental-wage method and all relevant deductions. This site's current annual-tax model does not reproduce every payroll method, W-4 election or state and local adjustment. Use the employer's stub and the IRS guidance to check a real payment.
Sources for checking a bonus payment
Start with IRS Publication 15, section 7, IRS Topic 751, the IRS withholding estimator and your applicable state revenue agency. These examples are educational and do not determine an individual worker's payroll withholding or tax return.
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Enter your salary, state, and deductions to explore an estimated net-pay scenario.
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