Illinois Minimum Auto Insurance Requirements

Illinois requires 25/50/20 liability coverage and mandatory uninsured motorist protection. Learn what's required, average costs, and why you might need more.

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Published October 11, 2025

Key Takeaways

  • Illinois requires 25/50/20 liability coverage, meaning $25,000 per person for bodily injury, $50,000 per accident for total injuries, and $20,000 for property damage.
  • Uninsured motorist coverage is mandatory in Illinois with minimum limits of $25,000 per person and $50,000 per accident for bodily injury protection.
  • The state minimums may not be enough to protect you financially in a serious accident, as medical bills and vehicle damage can quickly exceed these limits.
  • Illinois drivers pay an average of $170 per month for full coverage, while minimum coverage costs around $50 per month.
  • Driving without insurance in Illinois can result in license suspension, fines up to $1,000, and potential vehicle impoundment.
  • Consider purchasing higher liability limits and optional coverages like collision and comprehensive to better protect yourself and your assets.

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If you're driving in Illinois, you need auto insurance. It's not optional, it's not negotiable, and honestly, it's not something you want to cut corners on. Illinois law requires all drivers to carry specific minimum coverages before you can legally get behind the wheel. But here's what most people don't realize: those legal minimums might keep you street-legal, but they probably won't keep you financially safe if something goes wrong.

Let's break down exactly what Illinois requires, what those numbers actually mean for you, and why you might want to consider going beyond the bare minimum.

Understanding Illinois's 25/50/20 Liability Coverage

Illinois requires what's called 25/50/20 liability coverage. If you've heard these numbers thrown around but never understood what they mean, you're not alone. Here's the simple translation:

$25,000 bodily injury liability per person: If you cause an accident that injures someone, your insurance will pay up to $25,000 for that person's medical bills, lost wages, and pain and suffering.

$50,000 bodily injury liability per accident: This is the total maximum your insurance will pay for all injuries in a single accident, regardless of how many people are hurt.

$20,000 property damage liability per accident: This covers damage you cause to other people's vehicles, buildings, fences, or other property.

Here's the reality check: medical costs from even a moderate car accident can easily exceed $25,000 per person. A hospital stay, surgery, or extended physical therapy will blow through that limit fast. And if you total someone's newer vehicle, $20,000 might not cover it. The average new car costs over $48,000 these days, and even many used vehicles exceed $20,000 in value.

The Mandatory Uninsured Motorist Coverage Requirement

Illinois goes a step further than many states by requiring uninsured motorist coverage. This is actually good news for you. Uninsured motorist (UM) coverage protects you and your passengers if you're hit by a driver who doesn't have insurance or doesn't have enough insurance to cover your injuries.

The minimum required UM coverage in Illinois is 25/50, matching the bodily injury liability minimums. That means $25,000 per person and $50,000 per accident. This coverage kicks in when the at-fault driver has no insurance, when they flee the scene (hit-and-run), or when their insurance company becomes insolvent.

Why does this matter? According to recent data, a significant percentage of Illinois drivers are uninsured. If one of them causes an accident that puts you in the hospital, their lack of insurance becomes your financial problem—unless you have UM coverage. This mandatory requirement means you're not left holding the bag for someone else's irresponsibility.

One important note: the mandatory UM coverage only applies to bodily injury. Uninsured motorist property damage (UMPD) is optional in Illinois. If you want protection for your vehicle when an uninsured driver damages it, you'll need to add that coverage separately or carry collision coverage on your own policy.

What Happens If You Drive Without Insurance in Illinois

Let's be clear: driving without insurance in Illinois is a bad idea. The state takes this seriously, and the consequences can follow you for years. If you're caught driving uninsured, you're looking at license suspension, fines ranging from $500 to $1,000, and potential vehicle impoundment. To reinstate your license, you'll need to pay a reinstatement fee and file an SR-22 certificate proving you have insurance.

But here's where it gets really expensive: if you cause an accident while uninsured, you're personally liable for all damages. That means the injured party can sue you directly and come after your assets—your bank accounts, your wages, your home if you own one. A serious accident could financially devastate you for decades. The $50 a month for minimum coverage suddenly seems like a bargain compared to potential six-figure liability.

Should You Carry More Than the Minimum?

Short answer: probably yes. The Illinois minimums will keep you legal, but they might not keep you protected. Here's what insurance professionals typically recommend:

Consider 100/300/100 liability coverage if you can afford it. This gives you $100,000 per person, $300,000 per accident for injuries, and $100,000 for property damage. It's not dramatically more expensive than minimum coverage, but it provides significantly better protection. For many drivers, upgrading from minimum to this level costs an extra $30-50 per month.

Match your UM coverage to your liability limits. If you increase your liability coverage, increase your uninsured motorist coverage too. This ensures you have the same level of protection whether the person who hits you has insurance or not.

Add collision and comprehensive coverage if your vehicle has significant value. The state doesn't require these coverages, but they protect your own car. Collision covers damage from accidents regardless of who's at fault, while comprehensive covers theft, vandalism, weather damage, and hitting animals. If you're financing or leasing your vehicle, your lender will require these coverages anyway.

Think about your assets. If you own a home, have substantial savings, or earn a good income, you have more to lose in a lawsuit. Higher liability limits or an umbrella policy can protect what you've worked hard to build.

How Much Does Auto Insurance Cost in Illinois?

The average Illinois driver pays around $170 per month for full coverage auto insurance, or about $2,046 annually. For minimum coverage meeting just the state requirements, you're looking at approximately $50 per month or $600 per year. These are averages—your actual rate depends on your age, driving record, location, credit score, and the vehicle you drive.

Younger drivers pay significantly more. A 16-year-old in Illinois might pay over $5,300 annually, while drivers in their 50s often pay less than $1,000 per year for the same coverage. Your driving record also has a massive impact. A speeding ticket can increase your rate by 24%, while a DUI might spike it by 83% or more.

Good news: Illinois insurance rates are actually below the national average by about 22%. And recent data shows that insurance costs increased by about 26% in 2025, which is significant but in line with national trends driven by inflation, increased repair costs, and more expensive vehicles.

How to Get Started and Save Money

Getting properly insured in Illinois doesn't have to break the bank. Start by shopping around and comparing quotes from multiple insurance companies. Rates vary dramatically between insurers, and you might find the same coverage for hundreds of dollars less just by getting three or four quotes.

Ask about discounts. Most insurers offer savings for bundling multiple policies, maintaining a clean driving record, taking defensive driving courses, having safety features in your vehicle, being a good student (if you're young), and paying your premium in full. These discounts can add up to significant savings.

Consider your deductibles carefully. Choosing a higher deductible on collision and comprehensive coverage will lower your premium, but make sure you can afford to pay that deductible if you need to file a claim. A $1,000 deductible might save you $200 a year compared to a $500 deductible—is that trade-off worth it for your budget?

Finally, review your coverage annually. Your needs change, your vehicle depreciates, and insurance rates fluctuate. What made sense two years ago might not be the best option today. Take 30 minutes once a year to reassess your coverage and shop around. You'll be glad you did when you either find better coverage or lower rates—or both.

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Frequently Asked Questions

What is the minimum car insurance required in Illinois?

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Illinois requires 25/50/20 liability coverage and 25/50 uninsured motorist coverage. This means $25,000 per person and $50,000 per accident for bodily injury liability, $20,000 for property damage liability, plus matching uninsured motorist coverage for bodily injury. These are the legal minimums, though many experts recommend higher limits for better protection.

Is uninsured motorist coverage required in Illinois?

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Yes, Illinois is one of the states that mandates uninsured motorist coverage for bodily injury. You must carry at least $25,000 per person and $50,000 per accident in UM coverage. This protects you if you're hit by a driver without insurance or in a hit-and-run accident. Property damage protection for uninsured motorists is optional.

How much does minimum car insurance cost in Illinois?

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Minimum coverage in Illinois costs approximately $50 per month or $600 per year on average. However, your actual rate depends on factors like your age, driving history, credit score, location, and vehicle type. Younger drivers and those with violations on their record will pay significantly more, while experienced drivers with clean records typically pay less.

What happens if I get caught driving without insurance in Illinois?

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Driving without insurance in Illinois results in license suspension, fines between $500 and $1,000, and potential vehicle impoundment. To reinstate your license, you'll need to pay reinstatement fees and file an SR-22 certificate. If you cause an accident while uninsured, you're personally liable for all damages, which could include lawsuits against your personal assets.

Should I buy more than minimum coverage in Illinois?

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Most insurance professionals recommend purchasing higher limits than the state minimum. Medical costs and vehicle values often exceed the 25/50/20 minimums, leaving you personally liable for the difference. Consider 100/300/100 coverage for better protection, especially if you have assets to protect or regularly drive in high-traffic areas where serious accidents are more likely.

Does Illinois require comprehensive and collision coverage?

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No, Illinois does not require comprehensive or collision coverage. However, if you're financing or leasing your vehicle, your lender will require these coverages. Even if you own your car outright, these coverages protect your vehicle from damage, theft, vandalism, and weather events, which can be valuable if your car has significant value.

We provide this content to help you make informed insurance decisions. Just keep in mind: this isn't insurance, financial, or legal advice. Insurance products and costs vary by state, carrier, and your individual circumstances, subject to availability.

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