Claiming exempt on a bonus check stops your employer from withholding federal income tax from that payment, so more of the bonus lands in your account on payday. On a $5,000 bonus, skipping the standard 22% supplemental withholding keeps an extra $1,100 in your pocket up front. The tax itself doesn’t disappear though. You still owe it when you file, and if you didn’t legally qualify to claim exempt in the first place, the IRS can add a $500 civil penalty, or in willful cases pursue criminal charges.
Who Actually Qualifies
Federal law sets a two-part test. You must have owed zero federal income tax last year, and you must expect to owe zero this year. Both have to be true.1Office of the Law Revision Counsel. 26 U.S.C. 3402 – Income Tax Collected at Source
Getting a refund doesn’t count. A refund usually just means your employer withheld more than your actual tax. What matters is your total tax after credits. Under the IRS rule, you have no liability if the tax on your return is equal to or less than your allowed nonrefundable credits, not counting withholding or estimated payments.2eCFR. 26 CFR 31.3402(n)-1 – Employees Incurring No Income Tax Liability
If you earn a regular salary and are getting a bonus on top of it, you almost certainly have federal income tax liability. For 2026, the standard deduction is $16,100 for single filers, $32,200 for married couples filing jointly, and $24,150 for heads of household.3Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill If your income exceeds those numbers and credits don’t wipe out the resulting tax, you don’t qualify. A $50,000 salary plus a bonus fails this test by a wide margin.
The people who legitimately qualify tend to be part-time workers, students, or retirees with very low income and enough credits to offset the small amount of tax that would otherwise apply.
How to Mark Exempt on the W-4
Exempt status goes on IRS Form W-4. Complete Step 1 with your name, address, Social Security number, and filing status. Skip Steps 2, 3, and 4 entirely, because entries there can conflict with an exempt claim and cause payroll to override it.4IRS. Form W-4, Employee’s Withholding Certificate
Below Step 4(c) is a line for claiming exemption. Write “Exempt” there and sign the form. The form itself warns that claiming exemption means no income tax will be withheld and you may owe taxes and penalties when you file.4IRS. Form W-4, Employee’s Withholding Certificate Submit it to payroll or HR, and get it in ahead of the payroll cutoff, which most companies set several days before checks are issued.
What Changes on the Check, and What Doesn’t
The only thing exempt status changes is federal income tax withholding. Every other deduction continues as normal.
FICA still comes out. That’s 6.2% for Social Security on wages up to $184,500 in 2026, and 1.45% for Medicare with no cap.5Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates6Social Security Administration. Contribution and Benefit Base If your combined wages for the year cross $200,000 (single filer threshold), your employer withholds an additional 0.9% Medicare tax on the excess.7Internal Revenue Service. Questions and Answers for the Additional Medicare Tax
Here’s the math on a $5,000 bonus. Standard treatment: 22% ($1,100) federal, $310 Social Security, $72.50 Medicare — take-home around $3,517.50 before state and voluntary deductions. With exempt in effect, the $1,100 stays in the check, bringing take-home to roughly $4,617.50. State income tax, where it applies, comes out either way; a federal W-4 has no effect on state withholding.
The 22% rate is the flat supplemental wage rate employers use on bonuses, commissions, and similar payments when identified separately from regular pay.8Internal Revenue Service. Publication 15 (2026), (Circular E), Employer’s Tax Guide
The Bill Catches Up at Filing
Claiming exempt doesn’t reduce your tax. It just delays when you pay it. The bonus is still taxable income, and when you file, any tax you didn’t have withheld becomes a balance due.
If the gap between what you paid in and what you owe is large enough, the IRS adds an underpayment penalty on top. The penalty runs at the quarterly interest rate for underpayments and accrues based on how long the tax went unpaid.9Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
You avoid the penalty if any of these hold:
- Your return shows less than $1,000 owed after withholding and credits.
- You paid at least 90% of the current year’s tax through withholding or estimated payments.
- You paid at least 100% of the tax shown on last year’s return (110% if your adjusted gross income exceeded $150,000, or $75,000 married filing separately).
The 90% safe harbor is the one that matters most for someone claiming exempt on a single bonus. If your regular paycheck withholding already covers 90% of your full-year tax, skipping withholding on one bonus check may not push you over the line. Run that number before you file the W-4, not after.
Penalties If You Didn’t Qualify
Claim exempt without meeting the two-part test and the IRS can assess a $500 civil penalty for providing false withholding information without a reasonable basis. That’s on top of the tax you still owe.10Office of the Law Revision Counsel. 26 U.S.C. 6682 – False Information With Respect to Withholding
When the IRS concludes the false information was willful, the exposure turns criminal. Willfully supplying fraudulent information on a withholding certificate is a federal offense punishable by a fine of up to $1,000, up to one year of imprisonment, or both.11Office of the Law Revision Counsel. 26 U.S.C. 7205 – Fraudulent Withholding Exemption Certificate or Failure to Supply Information The IRS doesn’t have to show you planned to cheat on your annual return, only that you knowingly submitted false information on the W-4.
Lock-In Letters
The IRS runs a Withholding Compliance Program that cross-references W-2 data against tax returns. When the numbers don’t match — minimal withholding on a W-2 paired with a balance due or a missing return — the IRS can send your employer a lock-in letter specifying exactly how much to withhold from your pay going forward.12Internal Revenue Service. 13Internal Revenue Service. Withholding Compliance Questions and Answers
Switching Back After the Bonus
There’s no legal limit on how often you can update your W-4. You can submit a new one the day after the bonus posts, returning to normal withholding. The IRS itself suggests filing a new W-4 whenever your financial situation changes.14Internal Revenue Service. About Form W-4, Employee’s Withholding Certificate Payroll systems need processing time, so submit the update as soon as the bonus check clears if you want the next regular paycheck back to normal.
If you claimed exempt and your circumstances no longer support it, federal law requires a corrected W-4 within 10 days.15Office of the Law Revision Counsel. 26 U.S.C. 3402 – Income Tax Collected at Source Letting the exempt W-4 sit while normal paychecks come through with no federal withholding widens the tax gap fast and raises the odds of both an underpayment penalty and IRS scrutiny.
One more timing detail worth knowing: an exempt W-4 is valid only for the calendar year it’s filed. To keep exempt status past that year, you must submit a new exempt W-4 by February 15. Miss that date and your employer switches to default withholding until you file a corrected form.16Internal Revenue Service. Topic No. 753, Form W-4, Employees Withholding Certificate
If you don’t genuinely qualify but want more of your bonus in hand, the safer route is to adjust your W-4 to reduce withholding without eliminating it, or just accept the 22% and get any excess back as a refund. Waiting a few months for a refund costs nothing. Penalties and interest do.