How Bonuses Are Taxed Under Federal Payroll Rules

Published: November 2026  |  Last updated: November 2026

Short answer: Employee bonuses are generally taxable wages. The IRS classifies bonuses as supplemental wages and provides specific rules for federal income tax withholding. For 2026, an eligible, separately identified bonus can be withheld at a flat 22%, or an employer may use the aggregate method. The portion of an employee’s annual supplemental wages above $1 million is subject to 37% withholding. Bonuses also generally count as wages for Social Security, Medicare, and federal unemployment tax purposes, subject to the applicable rules and wage limits.

The most important distinction is between the amount withheld from a bonus paycheck and the employee’s final income tax liability. A bonus is not assigned a separate federal income tax bracket just because it is paid outside regular payroll. The withholding method can change the size of the payment employees receive, but the payment remains part of their annual taxable compensation.

What Is a Bonus Under Federal Payroll Rules?

A bonus is additional compensation an employer pays an employee beyond ordinary wages or salary. It may recognize performance, reward a milestone, support recruitment, or reflect a promised incentive. The IRS generally treats cash bonuses and other compensation for employee services as wages, even when paid outside the normal payroll schedule.

Bonuses are included in the IRS category called supplemental wages. Supplemental wages are distinguished from regular wages for federal income tax withholding purposes, not from taxable compensation itself. The payment still needs the correct wage classification, payroll taxes, and federal reporting.

What This Is

This article explains how federal payroll rules apply to bonuses paid to W-2 employees, with emphasis on the 2026 IRS supplemental-wage withholding methods, Social Security and Medicare taxes, the $1 million supplemental-wage threshold, wage reporting, and the separate effect some bonuses have on overtime calculations.

What This Is Not

This is not tax or legal advice, a state-by-state bonus tax guide, a guarantee of an employee’s take-home pay, or a complete treatment of equity awards, deferred compensation, retirement plans, fringe benefits, or independent-contractor payments. Bonus plans can have separate contractual, benefit-plan, and state wage-payment requirements that must be reviewed for the employer’s circumstances.

Who Does This Apply To?

This guidance applies to employers paying W-2 employees bonuses, including year-end bonuses, performance incentives, signing bonuses, referral payments, and other supplemental compensation. It is also relevant to payroll administrators, HR teams, bookkeepers, and accountants responsible for processing these payments accurately.

Who Does This Not Apply To?

The employee supplemental-wage rules described here do not automatically apply to independent contractors, business partners, or owners paid in a capacity other than as employees. Special employment categories and certain noncash or deferred arrangements can have different rules. State and local withholding requirements are outside this federal overview.

Why Does the IRS Treat Bonuses as Supplemental Wages?

Section 7 of IRS Publication 15 identifies bonuses among the payments treated as supplemental wages. Other examples include commissions, certain awards, back pay, severance pay, and retroactive pay increases. This classification matters because the employer may be required or permitted to calculate federal income tax withholding differently than it does for the employee’s usual paycheck.

The label on a payroll line does not make a payment tax-free. A cash bonus for services remains taxable compensation even if an employer calls it a holiday gift, reward, or special payment. The specific substance and applicable federal rules control the treatment.

Are Bonuses Taxed at a Different Federal Income Tax Rate?

A bonus is generally included in the employee’s taxable wages for the year. Federal income tax is ultimately determined using the employee’s total income, deductions, credits, filing status, and other facts on the annual income tax return. The IRS supplemental-wage rules determine how much federal income tax the employer withholds when the bonus is paid.

That distinction explains why a bonus paycheck can appear more heavily withheld than an ordinary paycheck. The difference may result from the permitted flat withholding method, the aggregate method, or additional employment taxes. The percentage withheld from one payment is not necessarily the employee’s final effective or marginal federal income tax rate.

When Can Employers Withhold 22% From a Bonus?

For 2026, the IRS permits the optional flat 22% federal income tax withholding method on a separately identified supplemental wage payment when federal income tax was withheld from the employee’s regular wages in the current or immediately preceding calendar year. The bonus may be issued as a separate payment or identified separately within a paycheck containing regular wages.

The 22% method is an employer withholding method permitted by the IRS, not an automatic rate that every bonus must use. When the conditions are met, an employer may instead apply the aggregate method. The 22% rate covers federal income tax withholding only; it does not include Social Security, Medicare, state tax, or other deductions.

What Is the Aggregate Method for Bonus Withholding?

Under the aggregate method, payroll combines the bonus with the appropriate regular wages for a payroll period, calculates withholding on the combined amount using the applicable federal wage withholding tables, and subtracts the income tax already withheld or to be withheld on the regular wages. The difference is the federal income tax withholding attributable to the bonus.

When regular wages and supplemental wages are paid together without separately stating the amount of each, the IRS instructs employers to calculate federal income tax withholding as though the full amount were one regular wage payment. When the bonus is separately identified, the aggregate method is an alternative to the permitted 22% flat method, and it is required when no federal income tax was withheld from the employee’s regular wages in either the current or immediately preceding calendar year.

The aggregate method uses the employee’s relevant Form W-4 information and the IRS withholding tables. Its result is not a universal percentage and may differ from 22% depending on wages, payroll frequency, and the facts of the payment.

What Happens When Supplemental Wages Exceed $1 Million?

A special mandatory rule applies to supplemental wages paid to an employee during a calendar year to the extent their cumulative total exceeds $1 million. For 2026, the amount above the threshold is subject to federal income tax withholding at 37%, regardless of the employee’s Form W-4. The IRS requires the employer to include supplemental wage payments from businesses under common control when applying this threshold.

The 37% rate applies to the portion above $1 million, not automatically to every dollar of a payment that crosses the threshold. The portion at or below the threshold follows the otherwise applicable supplemental-wage withholding rules. A $1 million threshold concerns supplemental wages, not simply total regular salary.

Are Bonuses Subject to Social Security, Medicare, and FUTA Taxes?

Generally, yes. IRS Publication 15 states that supplemental wages are subject to Social Security, Medicare, and federal unemployment (FUTA) taxes regardless of which permitted federal income tax withholding method is used. Social Security and Medicare taxes have employee and employer components. FUTA is generally an employer tax and is not deducted from the employee’s paycheck.

For 2026, Social Security tax is 6.2% for the employee and 6.2% for the employer on covered wages up to the annual Social Security wage base of $184,500. Medicare tax is 1.45% for each side, without an annual wage base limit. The employer must also withhold an additional 0.9% Medicare tax on an employee’s Medicare wages above $200,000 in the calendar year. There is no employer matching amount for Additional Medicare Tax.

FUTA generally applies to the first $7,000 of FUTA-taxable wages per employee each calendar year, subject to the applicable exemptions and credit rules. A bonus may increase FUTA-taxable wages if the employee has not yet reached that wage base. These limits are separate from the federal income tax supplemental-wage thresholds.

What Are the Main 2026 Federal Bonus Payroll Rates?

• 22%: Optional flat federal income tax withholding on qualifying, separately identified supplemental wages at or below the $1 million threshold.
• 37%: Mandatory federal income tax withholding on the portion of annual supplemental wages above $1 million.
• 6.2%: Employee Social Security tax on covered wages up to the 2026 annual $184,500 wage base; the employer generally pays another 6.2%.
• 1.45%: Employee Medicare tax on covered wages, without an annual wage base limit; the employer generally pays another 1.45%.
• 0.9%: Additional Medicare Tax withheld by the employer on an employee’s Medicare wages above $200,000 in the calendar year; no employer match.

These are different taxes and withholding rules. They should not be added together as a universal bonus tax rate because limits, thresholds, other deductions, and an employer’s selected income tax withholding method may change the calculation.

How Much Federal Tax Would Be Withheld From a $1,000 Bonus?

Example 1: A $1,000 bonus using the optional 22% method. Assume a qualifying, separately identified cash bonus is paid to a W-2 employee whose wages are below the Social Security wage base and Additional Medicare Tax threshold. Also assume the payment is fully subject to ordinary Social Security and Medicare tax, with no other deductions or state or local taxes.

• Federal income tax withholding: $1,000 x 22% = $220.00.
• Employee Social Security tax: $1,000 x 6.2% = $62.00.
• Employee Medicare tax: $1,000 x 1.45% = $14.50.
• Total illustrated employee federal withholding: $296.50.
• Illustrated bonus take-home amount: $1,000 – $296.50 = $703.50.

The employer generally also owes $62.00 in employer Social Security tax and $14.50 in employer Medicare tax on this bonus, plus any applicable FUTA liability. Those employer taxes do not come out of the employee’s $703.50 illustrated take-home amount. The actual net bonus can differ if other taxes, benefit deductions, or wage-base limits apply.

What If a Bonus Crosses the $1 Million Threshold?

Example 2: A bonus with part of the payment above the annual supplemental-wage threshold. Suppose an employee already received $999,000 in supplemental wages during 2026 and then receives a separately identified $5,000 bonus. Assume the optional 22% method is permitted and used on the portion not exceeding $1 million.

• First $1,000 of the new bonus: $1,000 x 22% = $220 of federal income tax withholding.
• Remaining $4,000 above the threshold: $4,000 x 37% = $1,480 of mandatory federal income tax withholding.
• Total federal income tax withheld from this bonus: $220 + $1,480 = $1,700.

This example calculates federal income tax withholding only. It excludes Social Security, Medicare, Additional Medicare Tax, state and local taxes, and deductions. It also assumes that relevant wages from businesses under common control have been counted in the annual supplemental-wage total.

Does the Social Security Wage Base Change Bonus Withholding?

Yes, for Social Security tax. For example, if an employee already has $184,000 of 2026 Social Security wages from an employer, a further $1,000 taxable bonus generally brings only the first $500 of that bonus up to the $184,500 wage base. The Social Security employee tax on that $500 is $31.00. The full $1,000 generally remains subject to the regular Medicare tax, and federal income tax withholding is calculated separately under the applicable method.

The Social Security wage base does not eliminate federal income tax withholding or Medicare tax. Payroll should use accurate year-to-date wage records, especially when a large bonus is issued late in the year.

Do Bonuses Affect Overtime Pay Under the FLSA?

Some do. The Department of Labor distinguishes discretionary and nondiscretionary bonuses when determining the regular rate used for overtime under the Fair Labor Standards Act (FLSA). A genuinely discretionary bonus may be excluded from the regular rate if the legal conditions are met. A promised, formula-based, production, attendance, or similar nondiscretionary bonus generally must be included unless another statutory exclusion applies.

These FLSA rules are separate from the IRS supplemental-wage withholding methods. A bonus may be taxable for payroll purposes whether or not it must be included in the overtime regular rate. When a nondiscretionary bonus covers several workweeks, the amount generally must be allocated to the weeks it was earned under the applicable overtime regulations.

Example 3: Overtime adjustment for a weekly nondiscretionary bonus. Assume a nonexempt employee earns $20 per hour, works 45 hours in one workweek, is already paid $30 per hour for the five overtime hours, and earns a $90 nondiscretionary bonus attributable entirely to that same workweek. The bonus adds $2.00 per hour to the regular rate ($90 divided by 45 hours). An additional half-time premium of $1.00 per overtime hour is owed, or $5.00 for five overtime hours. This is an additional wage calculation, not a tax withholding rate.

An actual overtime review must account for the employee’s complete pay arrangement, any legally excludable payments, and how a bonus is earned and allocated.

How Are Bonuses Reported on Form W-2?

The IRS 2026 Form W-2 instructions direct employers to include bonuses, including signing bonuses, in the employee’s wages reported in box 1, subject to applicable pretax adjustments. Covered bonus wages also generally enter Social Security wages in box 3 up to the wage base and Medicare wages in box 5 without a wage base limit. Related employee taxes withheld are reflected in the applicable boxes, including federal income tax in box 2, Social Security tax in box 4, and Medicare tax in box 6.

A bonus normally does not need a separate box simply because it is a bonus. Payroll records can identify the earning type internally while the W-2 combines taxable compensation according to the federal reporting instructions. Employers generally report wages in the calendar year they are paid, which can differ from the year in which the employee earned a bonus.

Does a December Bonus Paid in January Count for the Prior Year?

Generally, no. Federal wage reporting ordinarily follows the calendar year of payment. If an employer awards a bonus for 2026 performance but actually pays it in January 2027, the payment generally is included in 2027 wages and processed under the rules applicable when paid. Specialized deferred-compensation or other arrangements may require a separate review.

What Are Common Misunderstandings About Bonus Taxes?

• “Bonuses are always taxed at 22%.” The 22% amount is an optional federal income tax withholding method only when its conditions are satisfied. Some payments use the aggregate method, and a mandatory 37% rate applies above the annual supplemental-wage threshold.
• “The employee owes 22% in final federal income tax on every bonus.” Withholding on a paycheck is not the same as the final income tax calculated on the employee’s annual return.
• “A separate bonus check avoids payroll taxes.” Paying a bonus separately does not generally remove Social Security, Medicare, or FUTA tax obligations.
• “The entire bonus is withheld at 37% once a payment passes $1 million.” The mandatory 37% rule applies to the portion of annual supplemental wages above $1 million.
• “A bonus called discretionary never affects overtime.” The FLSA regular-rate analysis depends on how the payment was promised, earned, and controlled, not merely the label.
• “A bonus earned last year always belongs on last year’s W-2.” Federal wage reporting generally uses the calendar year in which the wages are actually paid.

What Should Employers Review Before Paying Bonuses?

• Identify the bonus type, amount, recipient, payment date, and whether it is separately stated from regular wages.
• Determine which IRS supplemental-wage withholding method is permitted and confirm any prior regular-wage federal income tax withholding necessary for the 22% option.
• Track annual supplemental wage totals, including applicable commonly controlled businesses, to identify amounts exceeding $1 million.
• Check year-to-date Social Security wages, the Additional Medicare Tax threshold, and whether any FUTA wage base remains.
• Determine whether a nondiscretionary bonus affects the overtime regular rate for covered nonexempt employees.
• Confirm applicable deductions, benefit-plan terms, tax deposits, and Form 941 and W-2 reporting.
• Review applicable state and local rules, which may affect withholding or the timing and payment of bonuses.

Clear payroll coding and a documented bonus approval process help ensure that the intended gross amount, proper withholding, and any overtime adjustment are handled consistently.

What Should Employees Know About Bonus Paychecks?

Employees may see a different withholding amount on a bonus than on regular wages. That difference does not necessarily mean the bonus is subject to a different final federal income tax rate. The pay statement should show the gross bonus and applicable deductions. Employees can compare year-to-date compensation and tax withholding, review their Form W-4 for regular payroll withholding, and consult a qualified tax professional about their individual tax situation.

If a bonus is expected to be a specific net amount rather than a gross amount, employees should confirm that arrangement with the employer in advance. Paying a promised net bonus can require a gross-up calculation, and employer-paid employee taxes may themselves create additional taxable wages.

How Should Payroll and HR Companies Help?

Payroll and HR providers should help employers distinguish bonus approval from payroll-tax calculation. A reliable process identifies the correct earning type, applies an authorized supplemental-wage withholding method, checks annual limits, verifies tax deposits, and supports accurate reporting. HR and payroll should also coordinate when bonus terms may affect an employee’s FLSA regular rate.

Journey Payroll & HR encourages employers to plan bonus payrolls with accurate wage records and clear communication. The goal is to calculate and report compensation correctly while helping employers and employees understand why a bonus payment may look different from a regular paycheck.

Frequently Asked Questions

Are cash bonuses taxable wages?

Generally, yes. Cash bonuses paid to employees for services are included in taxable wage compensation and are subject to applicable federal payroll taxes and withholding.

Is the federal bonus withholding rate 22% in 2026?

The IRS permits optional flat 22% federal income tax withholding on qualifying, separately identified supplemental wages at or below the $1 million threshold. Other situations use the aggregate method.

Can an employer use the 22% method for every employee?

No. The IRS requires the appropriate conditions, including federal income tax withheld from regular wages in the current or immediately preceding calendar year. If that condition is not met, the aggregate method applies for separately identified supplemental wages at or below the threshold.

Does a bonus count toward the Social Security wage base?

Generally, yes. For 2026, the annual Social Security wage base is $184,500, and covered bonus wages count toward it. The Medicare tax has no corresponding annual wage base limit.

Do employers owe payroll taxes on bonuses too?

Generally, yes. Employers ordinarily owe their own share of Social Security and Medicare taxes, and applicable FUTA tax, on taxable bonus wages.

Can a bonus increase the overtime pay an employee is owed?

Yes. Nondiscretionary bonuses generally affect the FLSA regular rate for covered nonexempt employees unless an applicable exclusion permits different treatment.

Is a bonus paid in January reported on the prior year’s W-2?

Generally, no. A bonus paid in January is ordinarily reported in the calendar year of payment, even if the performance period ended in the prior December.

Can an employee calculate their final income tax from the bonus pay stub?

Not necessarily. The pay stub shows withholding and other deductions from the payment; final individual federal income tax depends on the employee’s full-year tax return.