Insight
How long do I have to file an employment claim in Illinois? (2026 deadline guide)
Short answer: It depends on the type of claim — and some deadlines are as short as 30 days, while others run five years. The most common employment-discrimination deadlines in Illinois are 300 days (EEOC and the Illinois Department of Human Rights). Because missing a deadline can permanently end an otherwise strong case, the safest step is to have your specific claim reviewed early.
The deadlines at a glance
| Type of claim | Where you file | Deadline |
|---|---|---|
| Discrimination (Title VII, ADA, ADEA) | EEOC | 300 days from the act |
| Discrimination / harassment under state law | Illinois Dept. of Human Rights (IDHR) | 300 days |
| Illinois Whistleblower Act | Court | 5 years |
| Section 1983 (civil rights) | Federal / state court | 2 years |
| Unpaid wages (IL Wage Payment & Collection Act) | IDOL or court | Generally 10 years (written) |
| FLSA (federal overtime / minimum wage) | Court | 2 years (3 if willful) |
| OSHA whistleblower | OSHA | As little as 30 days |
| Sarbanes-Oxley retaliation | OSHA | 180 days |
| Breach of written employment contract | Court | 10 years |
Why the deadline depends on the exact claim
The same set of facts can support more than one claim — and each has its own clock. A single firing might involve a 300-day EEOC charge, a 2-year Section 1983 claim, and a 5-year whistleblower claim all at once. The deadline that matters most is the shortest one that applies to your strongest claim, which is why an early review is worth far more than it costs.
When does the clock start?
Usually on the date of the adverse action — the firing, the demotion, the denial. But there are exceptions: continuing violations, the “discovery rule” for some claims, and tolling while an agency investigates. Do not assume your window is open or closed based on a date alone.
What to do now
- Write down a dated timeline while it is still fresh.
- Save emails, texts, your personnel file, and any complaint you filed.
- Talk to an employment lawyer before any deadline you are unsure about.
Related: wrongful termination, retaliation, and whistleblower retaliation.
Speak with an attorney
If any of this sounds like your situation, the first conversation is free and confidential. You will leave knowing the next step.
Call (312) 248-3303This article is attorney advertising and general information only. It is not legal advice, and reading it or contacting GB Law does not create an attorney-client relationship. Deadlines and outcomes depend on the specific facts of each matter. Speak with an attorney promptly so a deadline does not decide your case for you.