Severance in Illinois
Illinois severance & layoff calculator
State law shapes how much of your severance you keep, when you can collect unemployment, and whether your employer owed you advance notice. Here’s what applies in Illinois.
- Top marginal tax
- 4.95%
- WARN Act
- State mini-WARN: 75+ employees
- Unemployment max
- $628 / week
- PTO payout
- Required by law
- Right to work
- No
- Notes for Illinois
- Worth knowing
Severance is taxed at your state's top marginal rate when it pushes you into that bracket.
Illinois layers its own WARN-style protections on top of federal law. Illinois WARN Act covers employers with ≥75 full-time employees (lower threshold than federal).
Up to 26 weeks. Severance is treated as wages here, which delays unemployment insurance eligibility until your severance period ends.
Illinois requires accrued, unused PTO to be paid out at separation regardless of your employment agreement.
Non-right-to-work; union representation may be relevant to severance and grievance procedures.
Earned vacation is wages under the IL Wage Payment & Collection Act. UI individual max is $628 (IDES EA-50 2026).
Sources: state department of labor, state department of revenue, and the U.S. Department of Labor ETA. Last verified: 2026-05.High confidence
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Estimates based on public data and industry benchmarks. Not legal advice.