Illinois Motor Vehicle Accident Calculator | CaseValue.law
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Illinois Motor Vehicle Accident Settlement Calculator

Under Illinois's modified comparative fault system, motor vehicle accident claimants can recover as long as their fault does not exceed 50%. Your damages are reduced by your fault percentage, and the critical question in every Illinois car accident case is whether the at-fault driver bears the majority of responsibility.

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How Illinois Law Affects Your Motor Vehicle Accident Case

The statute of limitations for this type of claim in Illinois is 2 years — in line with the national average of 2.8 years. This is a standard timeframe, but acting sooner preserves evidence and strengthens your position. Importantly, Illinois recognizes a discovery rule, which can extend the filing window in cases where the harm was not immediately apparent.

Drivers in Illinois must carry at least 25/50/20 in liability coverage — that’s $25K bodily injury per person, $50K per accident, and $20K property damage. While this meets the state minimum, a single ER visit can easily exceed these limits. The at-fault driver’s policy may not fully cover your losses in a serious accident. Illinois requires underinsured motorist (UIM) coverage, which provides additional protection when the at-fault driver’s limits are too low.

Claims against government entities in Illinois — such as accidents involving government vehicles, city buses, or dangerous road conditions maintained by a municipality — require a formal notice of claim within 365 days. This compressed timeline catches many accident victims off guard. If a government entity may be at fault, consulting an attorney immediately is critical to preserving your right to compensation.

Steps After a Car Accident in Illinois

If you are involved in a motor vehicle accident in Illinois, prioritize your safety, call 911, and document everything at the scene. Obtain a copy of the police report, photograph vehicle damage and road conditions, and collect contact information from witnesses. Seek medical evaluation as soon as possible — a gap between the accident and medical treatment can be used by the insurance company to argue your injuries were not caused by the collision. If a government vehicle or road defect was involved, note the 365-day notice requirement for government claims.

Key Illinois Laws

Filing Deadline
2 years
in line with the national average of 2.8 years
Negligence System
Modified Comparative Fault (51% Bar)
Insurance System
Tort (At-Fault)
Can sue the at-fault driver directly
Min. Liability Coverage
25/50/20
BI per person / BI per accident / PD (in thousands)
Govt. Notice Deadline
365 days
For claims against government entities

How Does Illinois Compare?

2 yrs
Filing Deadline
Avg: 2.8 yrs
Modified
Fault System
Modified Comparative Fault (51% Bar)

Illinois Motor Vehicle Accident FAQs

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Had Your Accident in a Different State?

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Legal Disclaimer

This calculator uses Illinois's statutes as of 2026-03-06. Laws change frequently. This tool provides estimates for informational purposes only and does not constitute legal advice. Verify current rules with a Illinois-licensed attorney before making decisions about your case. Learn about our methodology.

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