Illinois Minimum Auto Insurance Requirements
| Coverage | Minimum Limit |
|---|---|
| Bodily injury liability (per person) | $25,000 |
| Bodily injury liability (per accident) | $50,000 |
| Property damage liability | $20,000 |
| Uninsured motorist bodily injury | $25,000/$50,000 |
Illinois is an at-fault state, and unlike most states where uninsured motorist coverage is optional, Illinois requires it at limits matching your bodily injury liability. Underinsured motorist coverage (UIM) is also required in Illinois, protecting you when the at-fault driver has insurance but not enough to cover your damages.
What Makes Illinois Auto Insurance Different
- Mandatory UM/UIM: Illinois is among a smaller group of states requiring both uninsured and underinsured motorist coverage by law, not just offering it as an option
- Chicago vs. downstate rate gap: Chicago and its collar counties carry significantly higher premiums than downstate Illinois, driven by traffic density, theft rates, and accident frequency
- No credit-score restriction: Unlike California and Michigan, Illinois insurers can use credit-based insurance scores in pricing, which can meaningfully affect your rate
- Secretary of State registration link: Illinois verifies insurance electronically through the Secretary of State's office; a lapse can trigger registration suspension
How Much Does Car Insurance Cost in Illinois?
Illinois rates sit close to the national average statewide, but Chicago-area drivers typically pay considerably more than drivers in downstate cities like Springfield or Peoria, reflecting the city's higher accident and theft rates.
Best Auto Insurers for Illinois Drivers
Erie Insurance
Frequently cited as one of the cheapest options for Illinois drivers carrying minimum coverage, with a strong regional reputation.
State Farm
Headquartered in Bloomington, Illinois, with an especially deep agent network throughout the state.
GEICO and Progressive
Both competitive statewide, particularly for drivers who prefer a fully digital quote and claims process.
COUNTRY Financial
An Illinois-headquartered insurer with a strong regional reputation, particularly competitive for drivers outside the Chicago metro area who want a more localized agent relationship.
How to Lower Your Illinois Auto Insurance Rate
- Improve your credit-based insurance score where possible, since Illinois insurers are permitted to factor it into pricing
- Compare rates between Chicago-area and downstate providers if relocating within the state
- Ask about multi-policy discounts for bundling home or renters insurance
- Maintain continuous coverage to avoid registration issues and rate penalties for lapses
Coverage Options Beyond Illinois's Minimum
- Higher UM/UIM limits: Illinois requires UM/UIM at your liability limits, but you can increase both together for stronger protection
- Collision and comprehensive coverage: Protects your own vehicle, particularly relevant in Chicago's higher-theft neighborhoods
- Medical payments coverage (MedPay): An optional add-on that helps cover medical bills for you and your passengers regardless of fault
- Rental reimbursement: Useful given repair wait times in the Chicago metro area
Common Discounts Available to Illinois Drivers
- Multi-policy discount: Bundling auto with home or renters insurance
- Good student discount: For young drivers with strong academic records
- Telematics/usage-based discounts: Increasingly common across Illinois insurers, rewarding safe driving habits with lower premiums
- Anti-theft device discount: Particularly relevant in higher-theft Chicago neighborhoods
How to Compare Illinois Auto Insurance Quotes
Since Illinois permits credit-based insurance scoring, your credit profile can meaningfully shift pricing between insurers — some carriers weight it more heavily than others. Compare quotes from at least three to four insurers with identical coverage, and specifically ask each how your credit-based score factored into the quoted price if there's a large gap between them.
What Affects Your Rate Most in Illinois
Illinois is one of the states where credit-based insurance score genuinely moves the needle — insurers here are permitted to use it, and it can shift your quote as much as your driving record does. Beyond credit score, Chicago-area garaging, vehicle theft risk, and continuous coverage history round out the main factors Illinois insurers weigh when pricing your policy.
Step-by-Step: Getting Insured in Illinois
Once you've decided what coverage you need, the actual process of getting insured in Illinois typically follows the same basic steps regardless of which insurer you choose:
- Gather your information: Vehicle identification number (VIN), current mileage, driver's license numbers for everyone on the policy, and your current insurer's information if you're switching
- Request quotes with identical coverage across insurers: Use the same liability limits, deductibles, and add-on coverages for every quote so you're comparing accurately
- Review the declarations page carefully before purchasing — this single-page summary lists your exact coverage limits, deductibles, and excluded drivers or vehicles, and it's worth confirming it matches what you were quoted
- Cancel your old policy only after your new one is active to avoid any coverage gap, which can trigger penalties in many states and higher future premiums
- Keep proof of insurance in your vehicle and save a digital copy on your phone, since most states now accept electronic proof of insurance during traffic stops
Common Mistakes Illinois Drivers Make
Many Illinois drivers don't realize their credit-based insurance score is a major rating factor here, unlike in neighboring states like Michigan — improving your credit profile can meaningfully lower your Illinois premium in a way it wouldn't elsewhere. Another common mistake is assuming UM/UIM coverage is optional, since it's easy to confuse Illinois with the many states where it truly is optional — in Illinois, it's mandatory and automatically included at your liability limits. Finally, Chicago-area drivers sometimes fail to compare rates against downstate insurers who may not have the same urban risk pricing built in for a driver who's relocated.
Illinois's SR-22 and High-Risk Insurance Requirements
Illinois drivers convicted of DUI, driving without insurance, or accumulating multiple serious violations may be required to file an SR-22 with the Secretary of State, typically for three years. During this period, standard insurers often decline coverage or price it very high, making it worth specifically comparing insurers known for handling high-risk Illinois policies rather than assuming your current insurer offers the best available rate once an SR-22 is required.
Frequently Asked Questions
No — Illinois requires both uninsured and underinsured motorist coverage by law, at limits matching your bodily injury liability minimums.
Yes, unlike states such as California and Michigan, Illinois permits credit-based insurance scoring as a rating factor.
Higher traffic density, accident frequency, and vehicle theft rates in the Chicago metro area drive premiums meaningfully higher than in smaller downstate cities.
Penalties include fines, registration suspension, and reinstatement fees — the Secretary of State's electronic verification system flags lapses quickly.
No — standard personal policies typically exclude rideshare and delivery driving. A rideshare endorsement or commercial policy is required for proper coverage while working.