Getting laid off comes with enough uncertainty without also having to guess whether the severance number on your paperwork is fair. Once you understand how to calculate severance pay using the standard formula, most of that uncertainty disappears.
Severance Pay Calculator
Enter your annual salary, years of service, and the severance policy that applies to you, and see your estimated payout, both before and after tax withholding.
Run your own numbers above, then read on to understand the formula behind it, how it’s typically taxed, and what actually varies between a standard offer and a strong one.
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Severance Pay Calculator
Estimate your severance package using the standard weeks-per-year formula.
How to Calculate Severance Pay: The Standard Formula
Once you know how to calculate severance pay using the standard formula, the number itself becomes much less mysterious. Most severance calculations follow the same basic structure: weekly pay × years of service × a policy multiplier, typically expressed as weeks of pay per year worked. The most common baseline across industries is 1 to 2 weeks of pay per year of service, though this varies meaningfully by sector, technology companies frequently offer 1.5 to 3 weeks per year (sometimes 4+ months during mass layoffs), while retail and nonprofit organizations typically land at the lower end of that range.
A concrete example: an employee earning $80,000 a year with 6 years of service has a weekly salary of about $1,538. Using a standard 1.5-weeks-per-year policy, that’s $1,538 × 1.5 × 6 = roughly $13,846 gross, before any tax withholding is applied.
Federal Employees Follow a Different Formula
If you work for the federal government, severance isn’t set by company policy at all, it’s governed by statute (5 U.S.C. §5595). The calculation splits based on tenure: for the first 10 years of service, you receive one week of pay per year; for every year beyond 10, that doubles to two weeks per year. Someone with 15 years of federal service would receive 10 weeks (for the first 10 years) plus 10 weeks (5 additional years × 2 weeks), 20 weeks total, before any age-based adjustment factor is applied, which increases the multiplier further for older employees at the time of separation.
How Severance Is Actually Taxed
This is the part that catches a lot of people off guard, because the number on your severance letter is not the number that lands in your account. The IRS treats severance as taxable income, but how it’s withheld depends on how your employer structures the payment.
Lump-sum payment: the IRS treats this as supplemental wages, withheld at a flat 22% federal rate (37% on any amount above $1 million in supplemental wages in a calendar year, relevant only for very large executive packages).
Salary continuation: if your employer simply keeps paying your regular paycheck for the severance period, withholding follows your normal W-4 elections instead of the flat supplemental rate.
On top of federal withholding, severance is also subject to Social Security tax (6.2%, up to the estimated 2026 wage base of $176,100) and Medicare tax (1.45%, plus an additional 0.9% surtax on earnings above $200,000), plus state income tax where applicable. Combined, federal withholding and FICA alone typically take close to 30% off the top of a lump-sum payment before you ever see it.
What Actually Varies Between a Weak Offer and a Strong One
The weeks-per-year formula is the starting point, not the ceiling. Several factors commonly separate a below-average package from a stronger one, and nearly all of them are negotiable:
Unpaid bonuses and accrued PTO. A severance calculation should include any earned-but-unpaid annual bonus and unused paid time off, added on top of the base formula, not folded into it or forgotten.
Health benefits continuation. COBRA coverage is expensive on its own; a policy that includes employer-paid health benefits for 2-3 months during the severance period has real dollar value beyond the base payout itself.
Role and seniority. Executives and senior management often negotiate severance calculated as a multiple of base salary, sometimes several months to a full year, rather than the standard weeks-per-year formula used for other roles.
Leverage factors. Specialized or hard-to-replace skills, protected class status, documented strong performance, and any company vulnerabilities (recent layoffs, restructuring, legal exposure) can all shift a negotiation, even when the standard formula suggests a specific number.
Should You Sign Immediately?
Nearly all severance terms are negotiable, and most employment attorneys recommend having any severance agreement reviewed before signing, particularly for longer-tenured employees or anything that looks like it could involve wrongful termination. A lump-sum payout can also delay unemployment benefits eligibility in some states, depending on how your state treats severance relative to unemployment, worth checking your specific state’s rules before deciding between lump sum and salary continuation if you’re offered a choice.
Finanlytic Takeaway
FINANLYTIC | DATA INTELLIGENCE UNIT | Analysis by Hugo | Lead Market Strategist
How to calculate severance pay comes down to one formula almost every policy is built on, weekly pay × years of service × weeks-per-year multiplier, but the number that formula produces is a starting point, not a final offer. Unpaid bonuses, accrued PTO, health benefit continuation, and your actual leverage in the conversation can all move that number meaningfully, and the tax withholding on the back end (roughly 30% between federal and FICA on a lump sum) is exactly the kind of detail worth knowing before you’re sitting across from HR, not after.