Are Bonuses Included in Gross Income? Withholding and FICA

Bonuses are taxed as ordinary wages, but the way your employer withholds tax on them often makes the bite feel steeper than it really is. Federal rules treat bonuses as supplemental wages, which lets your employer either withhold a flat 22% for federal income tax or lump the bonus into your regular paycheck and withhold as if you earned that inflated amount every pay period. Either way, Social Security, Medicare, and (in most states) state income tax also come out. Your true tax bill is settled when you file your return, so the withholding on the check is a down payment, not the final number. Here is how bonuses are taxed at each step, from the paycheck to the return.

How Employers Withhold Federal Tax on a Bonus

Your employer picks one of two methods, and the choice can swing the size of your check by thousands of dollars.

The Flat 22% Method

If the bonus is paid separately from your regular paycheck, or paid together but listed separately, your employer can withhold a flat 22% for federal income tax.¹ No other flat rate is permitted for bonuses under $1 million, and your W-4 entries do not factor in. That is why a $5,000 bonus almost always shows $1,100 in federal withholding regardless of your personal situation.

The Aggregate Method

Your employer can instead combine the bonus with your regular pay for the period and withhold as though the total were a normal paycheck. Payroll systems calculate withholding by annualizing the check, so a $3,000 biweekly paycheck bundled with a $10,000 bonus gets treated as if you earn $13,000 every two weeks, or $338,000 a year. Withholding under this method often runs much heavier than the flat 22%. You recover the excess when you file, but the deposit that hits your account can feel punishing.

Bonuses Above $1 Million

Once your supplemental wages for the calendar year cross $1 million, the portion above that threshold must be withheld at 37%, the top marginal rate, regardless of your W-4 or actual bracket.¹ If you have already received $900,000 in supplemental wages and then get a $200,000 bonus, the first $100,000 is withheld at 22% and the remaining $100,000 at 37%.

What Your Bonus Actually Costs You in Tax

Withholding is not the same as tax owed. Your actual liability depends on your total taxable income for the year, run through the progressive federal brackets. For 2026, a single filer pays:²

10% on taxable income up to $12,400
12% on income from $12,401 to $50,400
22% on income from $50,401 to $105,700
24% on income from $105,701 to $201,775
32% on income from $201,776 to $256,225
35% on income from $256,226 to $640,600
37% on income over $640,600

Married couples filing jointly get roughly doubled thresholds, with the 12% bracket running up to $100,800 and the 22% bracket starting above that.²

These brackets apply to taxable income, meaning your gross wages minus the standard deduction ($16,100 for single filers, $32,200 for joint filers in 2026) or itemized deductions.² Crossing into a higher bracket only raises the rate on the dollars above the threshold. A single filer with $62,000 in salary has $45,900 in taxable income after the standard deduction, sitting inside the 12% bracket. Add an $8,000 bonus and taxable income becomes $53,900. Only the $3,500 above $50,400 gets taxed at 22%; the rest stays at 12%.

When you file, the IRS totals your withholding (from paychecks and any bonus checks) against your calculated tax. If flat 22% withholding was more than your effective rate warranted, you get a refund. If not, you owe the difference. A bonus does not create a separate “bonus tax.” It just changes the total income the brackets are applied to.

Social Security and Medicare Also Apply

Bonuses count as wages for FICA. Social Security tax runs at 6.2% up to the annual wage base, which is $184,500 for 2026.³ If your salary has already reached that cap by the time the bonus is paid, no more Social Security tax comes out. Otherwise, it applies until the cap is hit.

Medicare tax of 1.45% applies to every dollar with no cap. Once your total Medicare wages for the year pass $200,000, employers must start withholding an additional 0.9% surtax on the excess, regardless of your filing status.⁴ The actual liability for that surtax is based on your filing status ($200,000 single, $250,000 married filing jointly), so married filers may need to reconcile on their return.

Non-Cash Bonuses and Gift Cards

Not every bonus arrives as money. Vacations, electronics, event tickets, and other tangible rewards are taxable at their fair market value, which is what the item would cost in an ordinary retail transaction.⁵ A $1,200 laptop from your employer adds $1,200 to your taxable wages, and the withholding is usually collected out of a regular paycheck.

Gift cards get their own warning label. The IRS treats them as cash equivalents, which means they are taxable no matter how small.⁶ A $25 coffee-shop card from your boss at the holidays is technically wages.

Two narrow exceptions exist, and most workplace bonuses do not fit either. De minimis fringe benefits (occasional office snacks, coffee, holiday flowers, an office copier used for personal documents) can be excluded when tracking them would be impractical; the IRS has indicated that items above about $100 generally do not qualify.⁶ Employee achievement awards for length of service or safety can also be excluded, but only if they are tangible personal property (not cash, gift cards, vacations, tickets, or securities), and only up to $400 per employee per year under a standard plan or $1,600 under a qualified written plan.⁷ Cash bonuses and performance bonuses never qualify.

Reducing the Tax Hit With a 401(k) Deferral

If your employer’s plan allows it, you can direct some or all of a bonus into a 401(k), 403(b), or similar plan. A traditional (pre-tax) deferral reduces your taxable income for the year, which is useful when a bonus threatens to push part of your income into a higher bracket. The 2026 employee contribution limit is $24,500, with an $8,000 catch-up for workers 50 and older and an $11,250 catch-up for workers ages 60 through 63 under SECURE 2.0.⁸

Not every plan lets you set a separate deferral rate for bonuses or change your election mid-year, so ask HR before payday. Once the bonus is paid as taxable wages, you cannot retroactively redirect it. The deferral lowers income tax but not Social Security or Medicare tax, both of which apply to the full pre-deferral amount.

Avoiding an Underpayment Penalty

A large bonus with light withholding can leave you owing more than $1,000 in April, and that can trigger the IRS underpayment penalty. You can avoid it if your total withholding and estimated payments for the year cover at least 90% of your current-year tax or 100% of your prior-year tax (110% if your prior-year adjusted gross income was over $150,000).⁹

If a late-year bonus is going to leave your withholding short, the easiest fix is to file a new W-4 asking for extra withholding on your remaining paychecks. You can also send a one-time estimated payment through IRS Direct Pay or the Electronic Federal Tax Payment System. Handling it before December 31 costs less than penalties and interest the following April. Most states with an income tax have their own bonus withholding rules and underpayment rules, so the same planning applies at the state level.

If You Are a Contractor, Not an Employee

A “bonus” paid to an independent contractor is still taxable, but nothing is withheld. The paying company issues Form 1099-NEC when total nonemployee compensation reaches $2,000 or more for tax years beginning after 2025, with the threshold adjusting for inflation starting in 2027.¹⁰ You owe self-employment tax of 15.3% on net earnings on top of income tax, and you are responsible for quarterly estimated payments. A December contractor bonus with no prior estimated payments can produce both a large April bill and a penalty.

1
Internal Revenue Service. Publication 15 (2026), (Circular E), Employers Tax Guide – Section 7
2
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
3
Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet
4
Internal Revenue Service. Additional Medicare Tax
5
Office of the Law Revision Counsel. 26 USC 74 – Prizes and Awards
6
Internal Revenue Service. De Minimis Fringe Benefits
7
Office of the Law Revision Counsel. 26 USC 274 – Disallowance of Certain Entertainment Etc Expenses
8
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
9
Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
10
Internal Revenue Service. 2026 Publication 1099 General Instructions for Certain Information Returns