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Illinois Auto Insurance Requirements & Rates

Illinois requires 25/50/20 liability coverage and is an at-fault state.

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Illinois at a Glance

25/50/20

Minimum liability limits, in thousands of dollars (per person / per accident / property)

At-fault

The at-fault driver's insurance pays for the damage they cause

Required

Uninsured motorist coverage must be on every policy

Source: state DMV, insurance department and statute records, verified July 2026

State Requirements

Illinois operates as a traditional at-fault (tort) state, meaning the driver who causes an accident is financially responsible for damages. All drivers must carry proof of insurance and present it during traffic stops or after accidents. The state uses an electronic insurance verification system that allows law enforcement to confirm coverage in real time, according to the Illinois Department of Insurance.

Bodily Injury Liability

Covers medical expenses, lost wages, and legal costs when you injure someone in an at-fault accident. Illinois courts frequently award damages well above state minimums, leaving underinsured drivers personally liable for the difference.

Property Damage Liability

Pays for damage you cause to another person's vehicle or property.

Uninsured/Underinsured Motorist Coverage

Protects you when hit by a driver with no insurance or insufficient coverage to pay your medical bills and vehicle damage. Illinois law requires insurers to offer this coverage with the same limits as your liability policy, but you can decline it by signing a written rejection form.

Cost Overview

about $96/mo

Average car insurance spending in Illinois

Rate data: NAIC Auto Insurance Database, 2023

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Frequently Asked Questions

Is Illinois a no-fault insurance state?

No, Illinois is a traditional at-fault (tort) state. The driver who causes an accident is legally responsible for resulting damages. You can file a claim against the at-fault driver's liability insurance or sue them directly if their coverage is insufficient. This differs from no-fault states where your own insurance pays regardless of who caused the crash.

How long do I need SR-22 insurance in Illinois?

Illinois requires SR-22 filings for a minimum of three years following DUI convictions, license suspensions for uninsured accidents, or multiple violations. Your insurer files the SR-22 form with the Secretary of State and must notify them immediately if your policy lapses or cancels, triggering automatic license suspension. Most drivers see premiums double during the SR-22 period, with rates gradually decreasing after the requirement ends if you maintain a clean record.

Find Your City in Illinois

Chicago

urban

Aurora

suburban

Joliet

suburban

Naperville

suburban

Rockford

urban

Elgin

suburban

Springfield

suburban

Peoria

urban

Waukegan

suburban

Champaign

urban

Cicero

urban

Evanston

suburban