Bonuses are taxed as ordinary income — the same tax rates that apply to your regular salary. Your employer withholds tax from your bonus at the IRS supplemental wage rate of 22% (for most employees), but your actual tax rate depends on your total annual income. If your marginal rate is lower than 22%, you’ll get extra withholding back as a refund. If it’s higher, you’ll owe more at filing.
Quick answer: The IRS supplemental wage withholding rate on bonuses is 22% (flat). Social Security (6.2%) and Medicare (1.45%) also apply. Your actual bonus tax rate = your marginal income tax bracket (10%, 12%, 22%, 24%, 32%, 35%, or 37%). If you’re in the 22% bracket, withholding matches. Below 22%? Expect a refund. Above 22%? Owe at filing.
Bonus Tax Calculation — Flat Withholding Method
When your employer uses the flat supplemental wage rate:
Gross bonus: $5,000
| Tax | Rate | Amount Withheld |
|---|---|---|
| Federal income tax | 22% | $1,100 |
| Social Security | 6.2% (up to $176,100 wage base) | $310 |
| Medicare | 1.45% | $72.50 |
| State income tax | Varies | Varies |
| Total withholding (federal FICA only) | ~29.65% | $1,482.50 |
| Take-home (before state tax) | ~$3,518 |
Result: You receive roughly 70% of your bonus in take-home pay before state taxes.
Your Actual Bonus Tax Rate — By Bracket
The 22% withholding is just what your employer holds back. Your true tax rate on the bonus equals your marginal federal income tax bracket:
| Filing Status | 2026 Income Range | Marginal Rate | Over/Under 22% Withheld |
|---|---|---|---|
| Single | Up to $11,925 | 10% | Over-withheld → refund |
| Single | $11,926–$48,475 | 12% | Over-withheld → refund |
| Single | $48,476–$103,350 | 22% | Exact match |
| Single | $103,351–$197,300 | 24% | Under-withheld → owe more |
| Single | $197,301–$250,525 | 32% | Under-withheld → owe more |
| Single | $250,526–$626,350 | 35% | Under-withheld → owe more |
| Single | Over $626,350 | 37% | Under-withheld → owe more |
Example: You earn $85,000 salary and receive a $10,000 bonus (22% bracket).
- Withholding: 22% = $2,200 federal + FICA
- Actual bracket: 22%
- Result: Withholding is exact — no additional owed or refund on the bonus portion
Example 2: You earn $130,000 salary and receive a $10,000 bonus (24% bracket).
- Withholding: 22% = $2,200 federal
- Actual bracket: 24%
- Shortfall: 2% × $10,000 = $200 owed at filing
Two Withholding Methods Your Employer Can Use
Method 1: Flat Rate (most common)
- 22% withheld on the bonus separately
- Simple, predictable
- Most employers use this for all bonuses
Method 2: Aggregate Method
- Employer adds bonus to your most recent regular paycheck
- Calculates withholding on the combined amount
- Subtracts what was already withheld on regular pay
- Typically results in higher withholding since combined income triggers higher bracket
- Some employees prefer this if they want to avoid filing a balance due
Legal Ways to Reduce Your Bonus Tax
1. Maximize pre-tax 401(k) contributions If you haven’t hit the 2026 limit ($23,500; $31,000 if age 50+), ask HR to put a portion of your bonus directly into your 401(k). Each dollar contributed pre-tax reduces your taxable income by $1.
Example: $10,000 bonus, $5,000 contributed to 401(k):
- Only $5,000 taxable
- Tax savings at 22% bracket: $1,100
2. Contribute to an HSA (if on a high-deductible health plan) 2026 HSA limits: $4,300 single / $8,550 family (+ $1,000 catch-up if 55+). HSA contributions reduce taxable income.
3. Traditional IRA contribution If eligible (income limits apply for deductibility), contribute up to $7,000 ($8,000 if 50+) to a traditional IRA to reduce taxable income.
4. Time the bonus if possible If you expect significantly lower income next year, asking your employer to delay the bonus to January of next year shifts the tax burden to a lower-income year. This only works if your company’s compensation structure allows it.
5. Make charitable contributions If you itemize deductions, a large charitable donation in the same year as a large bonus can offset the tax impact.
State Taxes on Bonuses
Most states with income taxes also withhold state income tax from bonuses. Some states use a flat supplemental rate (similar to federal); others add the bonus to regular income and withhold at your effective rate. California withholds at 10.23% on supplemental wages; New York at 11.7%; Texas and Florida at 0% (no state income tax).
Mega-Bonuses — Over $1 Million
For executive compensation where a single bonus payment exceeds $1 million, the federal withholding rate increases to 37% on the portion above $1 million. This is the top marginal rate applied as a flat rate to the excess.
Related Guides
- Tax Deadline 2026
- How to Fill Out Form W-4
- What Is a 1099 Tax Form?
- Estimated Quarterly Taxes Guide
- California State Tax 2026
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