InjuryIllinois gives you 2 years from the date of injury to file a personal injury lawsuit, under 735 ILCS 5/13-202. The rule is straightforward for most claims, but the state's fault system is where most disputes actually happen.
The Standard 2-Year Deadline
Most negligence-based personal injury claims in Illinois — car accidents, slip and falls, dog bites, product liability — fall under this standard two-year window, measured from the date of the injury. As in most states, missing the deadline generally results in dismissal of the claim regardless of its underlying merit.
Modified Comparative Fault: The 51% Bar
Illinois uses modified comparative fault with a 51% bar. If you're found 50% or less at fault for your own injury, you can recover damages reduced by your fault percentage; at 51% or more, you recover nothing. Because Illinois is a true at-fault (tort) state rather than a no-fault state, there's no separate injury-severity threshold to clear before suing for pain and suffering — the fault determination is typically the central issue.
💡 Because there's no no-fault threshold standing between you and a lawsuit in Illinois, disputes here tend to center on the fault percentage and the value of your damages — making documentation of both liability and injury impact especially important.
Not Every Illinois Claim Runs on the Same Clock
The standard 2-year rule shifts depending on who's injured, who died, and who's being sued:
| Claim Type | Deadline | Statute |
|---|---|---|
| Standard injury claim | 2 years from injury | 735 ILCS 5/13-202 |
| Injured minor | 2 years after turning 18 | 735 ILCS 5/13-211 |
| Wrongful death | 2 years from death | 740 ILCS 180/2 |
| Government/municipal defendant | 1 year | 745 ILCS 10/8-101 |
⚠️ Claims against a municipality, school district, or other government body in Illinois face a much shorter 1-year deadline under the Illinois Tort Immunity Act — half the standard 2-year window. Assuming the general rule applies when a government entity is involved is a common, costly mistake.
Why the Deadline and the Fault Rule Both Matter
Even a claim filed well within the applicable deadline can be reduced or eliminated by an unfavorable fault determination. Building your case — evidence, witness statements, medical documentation — as early as possible protects you on both fronts.
Frequently Asked Questions
How long do I have to file a personal injury lawsuit in Illinois?
Generally 2 years from the date of injury under 735 ILCS 5/13-202.
What is Illinois's comparative fault rule?
Modified comparative fault with a 51% bar — you recover reduced damages at 50% fault or less, and nothing at 51% or more.
How long does an injured child have to file a lawsuit in Illinois?
Generally 2 years after turning 18, under 735 ILCS 5/13-211 — regardless of how long ago the injury occurred.
What is the deadline for a claim against a government entity in Illinois?
Generally 1 year under the Illinois Tort Immunity Act (745 ILCS 10/8-101) — half the standard 2-year personal injury deadline.
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