How Are Bonuses Taxed in 2026? Withholding vs Final Tax Explained

What Is the Bonus Tax Rate in 2026?

There is no special bonus tax rate when you file. Bonuses are ordinary wage income taxed at your normal federal and state brackets after the standard deduction and credits. The number most people mean by "bonus tax rate" is the 22% federal supplemental withholding rate employers use on bonus checks up to $1,000,000 in cumulative supplemental wages per year (37% above that threshold). That 22% is a prepayment estimate - not your final tax bill.

On top of federal withholding, your employer still withholds 6.2% Social Security (on wages up to the $184,500 wage base), 1.45% Medicare, and your state supplemental rate (10.23% in California, 11.70% in New York, 0% in Texas and other no-income-tax states). Combined, that is why a bonus can look taxed at 40% even when your true marginal rate is lower. See IRS Publication 15, Section 7 (supplemental wages) for the official rules.

How are bonuses taxed in 2026?

The IRS treats bonuses, commissions, signing bonuses, and most equity payouts as supplemental wages for withholding purposes (IRS Publication 15, Section 7). Your employer must withhold federal income tax, but the method differs from a regular paycheck. At filing, everything rolls into your total wages on Form W-2 Box 1 and is taxed at your normal bracket after the standard deduction and credits.

Two IRS-approved withholding methods exist. Most payroll systems default to the flat / percentage method when the bonus is paid separately. The aggregate method combines the bonus with regular wages on one check and runs the total through your W-4 tables. Your employer picks one; you do not choose at withholding time. See our W-4 guide for 2026 for how Step 4(b) adjustments affect aggregate withholding.

Flat / percentage method vs aggregate method

Which will my employer use? If your bonus arrives on its own check, expect the flat 22% supplemental method - that is the default in ADP, Workday, Paychex, and most payroll systems. If payroll combines the bonus with a regular paycheck in the same pay period, the aggregate method is more common. You cannot usually ask payroll to switch methods for a one-time bonus; the IRS allows either, and the employer chooses.

Worked Examples: Bonus Take-Home by Amount and State

Flat supplemental withholding (22% federal + 6.2% Social Security + 1.45% Medicare + state supplemental rate). Assumptions: single filer, year-to-date wages below the $184,500 Social Security cap, no Additional Medicare Tax on this check.

Federal: 22% supplemental. FICA: 6.2% + 1.45%. State supplemental: CA 10.23%, NY 11.70%, TX 0%. How we calculated these examples.

Bonus withholding vs final tax

Withholding is a prepayment, not the final bill. If your employer withheld 40% on a $15,000 bonus but your marginal federal bracket is 22%, you overpaid during the year and get the excess back as a refund (or reduced balance due) on Form 1040. If you had little tax withheld elsewhere and the bonus pushed you into a higher bracket, you may owe at filing even after the heavy bonus check withholding.

When you may get money back (refund)

• One-time bonus in a mid-bracket year where flat 22% federal plus state supplemental over-withheld vs your actual annual income.
• You maxed traditional 401(k) or HSA on the bonus check, lowering taxable income at filing.
• Multiple dependents and credits on your return that withholding did not fully reflect.

When you may owe more at filing

• Multiple bonuses or RSU vesting pushed total wages above what your W-4 assumed.
• Significant side income (1099, capital gains) with no extra withholding during the year.
• Aggregate method under-withheld because your W-4 claimed too many deductions.

Bonus withholding also shows up in our why your paycheck went down guide (Reason #6) when a bonus check makes the next regular paycheck look smaller by comparison.

FICA on bonuses

FICA applies to bonuses at full rates - there is no supplemental FICA discount. For 2026:

If you already hit the $184,500 Social Security wage base earlier in the year, the bonus skips OASDI but still pays Medicare. 401(k) deferrals reduce federal and state income-tax withholding on the bonus but not FICA. See our FICA explained guide and OASDI on your paycheck guide.

Types of Bonuses and How Each Is Taxed

Different bonus labels use the same supplemental wage withholding rules at payroll. At filing, all are ordinary income.

Year-end and holiday bonuses

The most common separate-check bonus. Employers almost always use the 22% federal flat supplemental method plus FICA and state tax. A $5,000 holiday bonus in California typically shows ~$2,000 withheld upfront.

Performance bonuses

Treated identically to year-end bonuses for withholding. May be paid on a combined paycheck (aggregate method) if tied to a regular pay period.

Signing bonuses

Supplemental wages from day one - same 22% federal withholding plus FICA and state. If you leave early and repay a clawback, tax treatment depends on timing: repayments in the same calendar year may be adjusted through payroll; cross-year clawbacks can require an amended return or itemized deduction analysis. Keep offer letters and repayment records.

Referral and retention bonuses

Ordinary supplemental wages. Retention bonuses paid after a vesting period still hit withholding when paid, not when promised.

Commissions

IRS supplemental wage rules apply. Sales commissions paid separately often use the flat 22% method; commissions on every paycheck may use aggregate withholding.

RSUs and stock bonuses

When RSUs vest, fair market value is ordinary wage income. Employers typically withhold at 22% federal supplemental (37% if cumulative supplemental wages exceed $1M), plus FICA and state, often via sell-to-cover. See IRS Publication 525 for stock compensation details.

State bonus withholding

States layer their own supplemental rate on top of federal 22% and FICA. No-income-tax states add 0%. High-tax states can push total withholding above 40%. Verified or published 2026 supplemental rates:

Compare high-tax states: California, New York, Texas, and Florida. Browse all 50 state paycheck calculators. NYC residents pay an additional local tax on bonuses beyond NY state withholding.

How to Pay Less Tax on a Bonus (Legally)

You cannot eliminate bonus income tax, but you can reduce withholding and sometimes your final tax:

401(k) or HSA deferral on the bonus

If your employer allows bonus deferrals, traditional 401(k) contributions reduce federal and state income-tax withholding on that bonus. FICA still applies to 401(k) deferrals - deferring does not reduce Social Security or Medicare. Example: $10,000 bonus with $3,000 deferred to traditional 401(k) - income-tax withholding applies to $7,000, saving roughly $660 in federal supplemental withholding alone (22% of $3,000), plus state savings. See our Roth vs Traditional 401(k) guide.

W-4 Step 4(b) deduction

Claim expected deductions equal to the bonus on your W-4 before a combined bonus paycheck. This helps aggregate-method withholding more than a separate flat-method check.

Charitable giving and RSU donations

Donating appreciated RSUs or bunching charitable gifts may reduce taxable income at filing if you itemize. Payroll charitable deductions through your employer can exclude amounts from taxable wages when offered.

Timing: January vs December

A bonus paid in January counts in the next tax year. Employers sometimes defer discretionary bonuses for cash-flow or employee preference - confirm with payroll before assuming you can choose.

What does NOT work

Asking your employer to use the aggregate method on a separate bonus check, calling the bonus a "gift," or routing it to a personal LLC does not change IRS treatment. Gifts from employers to employees are taxable compensation. Only legitimate deductions and deferrals reduce tax.

Will My Bonus Push Me Into a Higher Tax Bracket?

Only the dollars above each bracket threshold are taxed at the higher rate - not your entire income. A bonus can push some income into the next marginal bracket, but it does not re-tax your whole salary at that rate.

Example: single filer with $90,000 wages plus a $10,000 bonus. The bonus adds $10,000 of taxable income. Only the portion that crosses a bracket boundary pays the higher marginal rate on those dollars - your effective rate on the full $100,000 is still lower than the top marginal rate. Withholding on the bonus check may feel worse because 22% flat supplemental does not account for your full-year picture. See 2026 federal tax brackets for thresholds.

Bonus over $1 million

Once your cumulative supplemental wages in a calendar year exceed $1,000,000 with the same employer, the federal flat rate jumps from 22% to 37% on the excess. FICA and state rates still apply on top.

How to Estimate Your Bonus Take-Home in 3 Steps

1. Get your gross bonus amount from your offer letter or payroll notice (before any deferrals).
2. Identify your state and YTD wages - if you are over the $184,500 Social Security cap, OASDI drops off the bonus check.
3. Apply flat supplemental withholding: 22% federal + 7.65% FICA + your state supplemental rate (or use our calculator for flat vs aggregate side by side).

Frequently asked questions

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