Massachusetts Severance Pay Calculator 2026

Massachusetts severance tax: how the math works

Federal supplemental withholding

22% (37% above $1M/yr)

Massachusetts state supplemental

~5.0%

Combined income tax withholding

27.0%

FICA (Social Security + Medicare)

7.65% (+ 0.9% above $200K)

Example: 12-week severance on $75K salary, gross

$17,308

After income tax withholding (before FICA)

$12,635

These are withholding rates, not final tax rates. Actual tax owed reconciles at filing time against the year's total income and marginal bracket. The calculator above estimates your specific situation.

Massachusetts legal protections for severance recipients

Common questions

What is the severance tax rate in Massachusetts for 2026?

Massachusetts's supplemental withholding rate on severance is approximately 5.0%. Combined with the federal 22% supplemental rate, total withholding is approximately 27.0% before FICA. The withheld amount is reconciled at tax-filing time against the year's actual marginal rate.

Does Massachusetts require employers to pay severance?

No. Massachusetts does not require employers to pay severance by law; it remains a matter of company policy or individual employment contract. However, Massachusetts has up to 9% state tax (5% + 4% surtax on income over $1M). Severance over $1M faces higher rates.

How does Massachusetts treat severance for unemployment benefits?

Severance generally affects unemployment eligibility in two patterns: (1) Salary continuation: paid as weekly pay continuation typically delays UI eligibility week-for-week. (2) Lump-sum: treatment varies by state; in many states the lump sum is attributed to the week of separation rather than spread across the period it represents. Filing for UI immediately and letting the state agency determine the allocation is the standard approach; appeals are routine if the initial determination is wrong.

Is the calculator accurate for high earners in Massachusetts?

For severance amounts under $1 million in a single calendar year, yes. For amounts above $1 million, the federal supplemental rate jumps from 22% to 37% on the excess, relevant for executive severance, partner-level packages, or large bonus-plus-severance combinations in the same year. High-dollar severance recipients should reconcile actual federal tax against marginal brackets at filing time.

Can I negotiate severance differently in Massachusetts?

Beyond state specifics, negotiation leverage typically lives in extended healthcare, accelerated equity vesting, non-compete narrowing, outplacement upgrades, and release-of-claims scope. Consider consulting an employment attorney licensed in Massachusetts.