Severance is taxed so high at the paycheck level because the IRS treats it as “supplemental wages,” which lets your employer withhold federal income tax at a flat 22% before Social Security, Medicare, and state taxes stack on top. That combination routinely pushes total withholding past 30% of the gross. The withholding rate is not your final tax bill, though, and many people who lose income after separation get part of it back at filing time.
Why the IRS Withholds at a Higher Rate
Severance is ordinary taxable income. IRS Publication 525 requires you to include severance pay and any payment for cancellation of an employment contract in your income, subject to the same federal income tax, Social Security tax, Medicare tax, and federal unemployment tax as your regular wages.1Internal Revenue Service. Publication 525 (2025), Taxable and Nontaxable Income
What makes severance feel worse than a normal paycheck is not the tax itself but the withholding rules. Because severance sits outside your regular pay cycle, the IRS groups it with bonuses, commissions, overtime, and back pay in a category called supplemental wages. When your employer identifies severance as a separate payment from regular wages, they may withhold federal income tax at a flat 22%.2Internal Revenue Service. Publication 15 (2026), (Circular E), Employers Tax Guide – Section: 7. Supplemental Wages
Most employers pick the flat rate because it’s simple. One number, applied to the whole payment, no calculations against your W-4. But that 22% ignores your actual bracket, your filing status, and your deductions. On a $50,000 severance, $11,000 goes straight to the IRS for federal income tax alone. If your effective tax rate would normally be closer to 12% or 15%, the flat rate feels punishing on paper.
The Aggregate Method Can Make It Worse
Not every employer uses the 22% flat rate. Some payroll systems roll the severance into your regular wages for that pay period and compute withholding as if you earned that combined amount every payday all year. This is the aggregate method.
The math distorts quickly. If you normally earn $3,000 biweekly and your employer adds a $40,000 severance to the same pay run, the software sees $43,000 for that period, annualizes it past $1.1 million, and withholds at bracket rates that would apply to someone earning that year-round.2Internal Revenue Service. Publication 15 (2026), (Circular E), Employers Tax Guide – Section: 7. Supplemental Wages Withholding on that one check can land at 35% or higher, well above what you’ll actually owe.
The system isn’t broken, just blunt. Payroll software can’t know that the payment won’t repeat. If your employer used the aggregate method and you’d prefer the flat 22%, ask payroll before the payment processes. When severance is identified as a separate payment, the employer can use either method, and some will accommodate the request.
FICA and State Taxes Stack on Top
The 22% is only the federal income tax slice. Social Security and Medicare taxes come out separately: 6.2% for Social Security and 1.45% for Medicare, a combined 7.65%.3Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax
The Social Security piece has a cap. In 2026, the 6.2% only applies to wages up to $184,500.4Social Security Administration. Contribution and Benefit Base If your regular salary already crossed that limit before the severance hit, some or all of the payment escapes the Social Security tax. Medicare has no wage base, so 1.45% applies to every dollar. And if your total wages for the year top $200,000 (or $250,000 for joint filers), an additional 0.9% Medicare surtax applies to the excess.5Internal Revenue Service. Topic No. 560, Additional Medicare Tax A large severance can push you over that line even when your regular salary never came close.
Most states with an income tax withhold on severance too, either at a flat supplemental rate or through their standard bracket tables. Rates run roughly from 1.5% to over 11% depending on the state, and nine states have no income tax at all. Some states require the aggregate method at the state level, producing the same bracket-inflation problem the federal aggregate method creates. In a high-tax state, combined federal and state withholding can push past 40% of the gross.
Severance Over $1 Million
If your total supplemental wages from one employer exceed $1 million in a calendar year, every dollar above that threshold must be withheld at 37%, the top marginal rate.2Internal Revenue Service. Publication 15 (2026), (Circular E), Employers Tax Guide – Section: 7. Supplemental Wages The flat 22% is not available on the excess, and your W-4 elections have no effect on that portion. The threshold counts all supplemental wages during the year, not just severance, and employers under common ownership are combined.
Withholding Is Not Your Final Tax Bill
This is the piece most people miss when they see their severance check. Withholding is a deposit against your tax liability, not the tax itself. Your actual liability gets settled on your return, using your real total income, deductions, and credits for the year.
Many severance recipients spend part of the year without income. Say you earned $75,000 through August, received a $30,000 severance, and had nothing more coming in. Your taxable income for the year is $105,000 before the standard deduction. For a single filer in 2026, most of that sits in the 22% bracket, with only the top sliver reaching the 24% bracket, which starts at $105,700.6Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 After the standard deduction, taxable income drops further. If 22% was withheld on the full severance and your regular paychecks were withheld against a full year of salary you never received, you’ve likely overpaid, and the excess comes back as a refund.
The reverse can happen too. If you land a higher-paying job quickly or have significant investment income, the 22% flat rate may not cover what you owe, and you’ll settle up in April.
Ways to Reduce What You Owe
You can’t dodge tax on severance, but you have real options for lowering the final bill.
Negotiate Installment Payments
If your employer will agree, splitting severance across two calendar years can keep both years in lower brackets. A $60,000 lump sum in December drops all of that income into one year. The same $60,000 paid $30,000 in December and $30,000 in January spreads the income across two tax years, which can save meaningfully if you expect to earn less in the following year.
Contribute to a Traditional IRA
Severance appears in Box 1 of your W-2, which qualifies as compensation for IRA purposes. In 2026, you can contribute up to $7,500 to a traditional IRA, or $8,600 if you’re 50 or older.7Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 A deductible contribution directly lowers your taxable income. The deduction phases out at certain income levels if you’re covered by a workplace retirement plan, so check your situation. One thing that won’t work: deferring severance into your former employer’s 401(k). Once you’ve separated, that door is closed.8Internal Revenue Service. Chapter 3 Compensation
Fund a Health Savings Account
If you keep high-deductible health plan coverage after separation, through COBRA or a marketplace plan, you can contribute to an HSA. The 2026 limits are $4,400 for self-only coverage and $8,750 for family coverage.9Internal Revenue Service. IRS Notice 2026-05 Contributions are deductible.
Recalibrate Withholding at Your Next Job
When you start a new job after receiving severance, the IRS Tax Withholding Estimator at irs.gov can help you set the W-4 at the new employer. Factoring in the severance already received and taxes already withheld lets you calibrate the rest of the year so you’re neither lending the government money interest-free nor facing a surprise balance in April.
Watch for Estimated Tax and Unemployment Rules
If you stay unemployed for a while after receiving severance, keep estimated tax payments on your radar. The IRS expects tax to be paid throughout the year. You generally avoid an underpayment penalty if you owe less than $1,000 at filing, or if your total withholding and payments cover at least 90% of the current year’s tax or 100% of the prior year’s tax, whichever is less.10Internal Revenue Service. Estimated Taxes For most people whose only unusual income was a severance check with heavy withholding already applied, the safe harbor keeps you clear. Freelance work, investment income, or other untaxed income during the year is a reason to run the numbers earlier rather than at filing time.
Severance can also affect unemployment benefits, and the rules vary sharply by state. Some states delay or reduce benefits during a period covered by severance, especially when the payment is structured as salary continuation rather than a lump sum. Others draw no connection. Check with your state’s unemployment agency before agreeing to a particular payment structure. Unemployment compensation itself is taxable income too, which is another reason to keep a running estimate of your total tax picture for the year.11Internal Revenue Service. What If I Lose My Job