What are Illinois minimum car insurance requirements?

Illinois requires: $25,000 bodily injury per person / $50,000 per accident, $20,000 property damage liability, and $25,000/$50,000 uninsured motorist coverage. Illinois is an at-fault (tort) state — the driver who causes the accident is responsible for damages.

How much is car insurance in Illinois?

Average Illinois full coverage runs about $1,850/year. Chicago drivers pay significantly more — often $2,400-3,200/year — due to high theft rates, traffic density, and claim frequency. Downstate Illinois rates are closer to the national average.

Is Illinois a no-fault state?

No. Illinois is an at-fault tort state. The driver who causes the accident is responsible for paying the other party's damages. This means your own liability coverage must be adequate — if you cause a serious accident and are underinsured, you're personally on the hook for the difference.

Why is car insurance so expensive in Chicago?

Chicago consistently ranks among the top 10 cities for auto theft nationally. High population density increases collision frequency. Medical costs in the Chicago metro are above average. These factors push rates 30-50% above rural Illinois.

What is uninsured motorist coverage and do I need it in Illinois?

Yes — Illinois requires it. Approximately 13% of Illinois drivers are uninsured. Uninsured motorist coverage pays your medical bills and damages when an uninsured driver hits you. Given Illinois's 13% uninsured rate, the minimum $25,000/$50,000 is often not enough for serious accidents — consider higher limits.

Illinois Car Insurance Requirements: What the State Requires and What Agents Recommend

Illinois is an at-fault state with some of the highest uninsured driver rates in the Midwest — and Chicago consistently ranks among the top cities for vehicle theft nationally. If you're carrying minimum coverage, you're probably underinsured.

Here's what Illinois law requires, where the gaps are, and how to structure coverage that actually protects you.

Illinois Minimum Auto Insurance Requirements

Illinois requires three types of coverage:

Liability Insurance (25/50/20)

$25,000 bodily injury per person
$50,000 bodily injury per accident
$20,000 property damage liability

Because Illinois is an at-fault state, your liability coverage pays when you cause an accident. The minimums sound reasonable until you consider that a typical ER visit runs $3,500 and a serious injury can hit $150,000+ in medical costs alone.

Uninsured Motorist Coverage (25/50)

$25,000 per person
$50,000 per accident

This is mandatory in Illinois. About 13% of Illinois drivers carry no insurance at all. Your UM coverage pays when one of them hits you.

What's NOT required in Illinois:

Personal injury protection (Illinois is not a no-fault state)
Comprehensive or collision (unless your lender requires it)
Underinsured motorist coverage (recommended but not mandated)

The At-Fault Problem: Why IL Minimums Are Especially Dangerous

Because Illinois is an at-fault state, the person who causes the accident pays. If you cause an accident that results in $150,000 in injuries and you only carry $25,000 in bodily injury coverage, the injured party can sue you personally for the $125,000 gap.

Asset protection is the real reason to carry higher liability limits — not just to satisfy the law.

Recommended Illinois minimums for most drivers:

$100,000/$300,000 bodily injury liability
$100,000 property damage
$100,000/$300,000 uninsured motorist

The premium difference between state minimums and $100/300/100 is typically $200-400/year. The protection difference is enormous.

Chicago vs. Downstate Illinois: Rate Reality

Insurance rates in Illinois aren't uniform. Chicago drivers pay dramatically more:

Chicago-area rate drivers:

Auto theft rates 3-4x the national average
High-density traffic = more collision claims
Higher medical costs
More litigation (IL allows large injury verdicts)

Downstate advantages:

Lower theft rates
Less traffic density
Faster claims resolution
Rates often 30-50% below Chicago metro

If you recently moved from downstate to Chicago, expect your rate to increase significantly — even with the same coverage and the same driving record.

Illinois-Specific Coverage Considerations

Auto theft. Chicago is a top-10 city for auto theft every year. Kia and Hyundai models have been especially targeted in recent years following a widely-shared social media challenge. If you drive one, comprehensive coverage is non-negotiable — and some insurers have added surcharges for those makes.

Underinsured motorist (UIM) coverage. Illinois doesn't require it, but you should have it. The minimum UM limits most people carry ($25,000/$50,000) are often not enough for serious accidents. UIM kicks in when the at-fault driver's insurance isn't sufficient.

Medical payments (MedPay). Optional in Illinois, but useful. MedPay pays your medical bills regardless of fault, covering gaps that health insurance leaves open (deductibles, co-pays, out-of-pocket maximums).

How Illinois Rates Are Calculated

Illinois insurers use the following factors (all are legal in Illinois):

Driving record (accidents, violations)
Age and experience
Vehicle make, model, and year
ZIP code (heavily weighted)
Credit-based insurance score
Annual mileage
Coverage history and gaps

Illinois does allow credit-based insurance scoring. A good credit score can save you 10-25% versus average credit. A poor score can add 30-40%.

Saving Money on Illinois Car Insurance

Bundle with renters or homeowners. Multi-policy discounts of 10-18% are common.
Ask about good driver discounts. 3+ years accident-free typically earns 10-20% off.
Increase your deductible. Going from $250 to $1,000 reduces collision premium by 15-25%.
Take a defensive driving course. Illinois allows a 10% discount for approved courses.
Pay in full. Paying your 6-month premium upfront instead of monthly often saves $30-60.
Review coverage on older vehicles. If your car is worth less than 10x your annual comp/collision premium, dropping those coverages may make sense.

Licensed in Illinois

Nelson & Associates is an American Family Insurance agency licensed in Illinois, Minnesota, and Ohio. We write auto, home, life, and commercial coverage.

If you're in Illinois and want a quote or a coverage review, we can help.

Get an Illinois auto insurance quote →