Illinois Car Accident Guide

Illinois Car Accident Guide

Illinois sees roughly 320,000 reported car accidents each year. This guide explains what drivers in Illinois should know about reporting deadlines, insurance claims, fault rules, and the situations where professional legal help tends to be worth the call.

Illinois at a Glance

Fault System
Fault / Tort State
Modified 50% bar
Statute of Limitations
2 years
PI: 2 yrs / Property: 5 yrs
Min. Liability Coverage
25/50/20
PIP optional / not required
Crash Report Deadline
10 days
Threshold: $1,500+ damage

Why Illinois Is Different

Illinois's 2023 shift from modified 51% to modified 50% comparative fault is significant — at exactly 50% fault, plaintiffs can no longer recover. Illinois has a notably long property damage SOL (5 years) vs personal injury (2 years). The $1,500 DMV reporting threshold is higher than most states. Illinois is a traditional fault/tort state with no PIP requirement.

Step-by-Step Guides for Illinois

After the Accident
What to Do After a Car Accident
Step-by-step checklist for the first 24 hours and beyond.
Insurance
How to File an Insurance Claim
Navigate the Illinois insurance process without losing the claim.
Decision Help
Do You Need a Lawyer?
Honest framework for deciding when an attorney is worth it.
Legal Reference
Illinois Car Accident Laws
Complete overview of the rules that apply to your case.
Accident Type
Rear-End Collision
Fault rules, common defenses, and what to do.
Accident Type
T-Bone Accident
Liability questions in side-impact crashes.
Accident Type
Hit and Run
Laws, penalties, and how to recover when the other driver flees.

When Professional Help Tends to Make Sense

Most minor accidents in Illinois are resolved between the drivers and their insurance companies without ever involving an attorney. Many accident victims, however, consider consulting an attorney when one or more of the following applies:

  • A fatality occurred, or a wrongful-death claim may be involved
  • Medical bills are already in the tens of thousands of dollars, or still growing
  • There is a permanent injury, visible scar, or any sign of traumatic brain injury (TBI)
  • The insurance company’s first settlement offer feels far below your actual costs
  • The insurance company is arguing that your injuries are pre-existing, or trying to shift primary fault onto you
  • Multiple vehicles or multiple parties are involved and liability is unclear
  • Fault is disputed — especially relevant given Illinois’s 50% bar modified comparative fault rule
  • The Illinois statute of limitations for personal injury (2 years from the accident) is within six months
  • A government vehicle, commercial truck, or rideshare driver is involved
  • The other driver was uninsured, underinsured, or fled the scene (hit-and-run)
Speak with a Illinois Car Accident Attorney

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Recent Editorial Notes on Illinois Law

  • 2023: Illinois changed comparative fault from modified 51% to modified 50% effective January 1, 2023 (Public Act 102-0489). Under the old rule, a 50/50 fault split allowed recovery; under the new rule, it does not.

Reviewed by TurnYourClaim Editorial Team — Last verified: 2026-03-03

Sources: 735 ILCS 5/2-1116 (Comparative Fault); 625 ILCS 5/7-601 (Financial Responsibility); Public Act 102-0489 (2023 Comparative Fault Amendment); IDOT Crash Data

DISCLAIMER: TurnYourClaim is not a law firm and does not provide legal advice. This site provides general educational information only. Laws vary by state and change frequently. Always consult a licensed attorney in your state for advice specific to your situation. Last updated: May 2026.