Cheap liability car insurance in Illinois involves more than a basic 25/50/20 liability policy. Illinois requires at least $25,000/$50,000 bodily-injury liability, $20,000 property-damage liability, and $25,000/$50,000 uninsured-motorist bodily-injury coverage.[1] Therefore, the legal minimum package includes more protection than the phrase “liability-only” suggests.
Prices can also vary widely by insurer and driver profile. For example, NerdWallet’s August 2026 minimum-coverage sample used a 35-year-old driver with a clean record and good credit. Westfield and Erie were about $31 per month, Allstate was $35, and Mercury and Auto-Owners were $43.[2] These figures are benchmarks, not personal quotes or a statewide guarantee. As a result, comparing the same Illinois coverage across several insurers remains one of the best ways to find savings.
What Illinois Drivers Need to Know Before Buying the Cheapest Policy
Liability minimum
$25,000 bodily injury per person, $50,000 per accident, and $20,000 property damage per accident.[1]
Uninsured motorist is required
Illinois also requires at least $25,000/$50,000 uninsured-motorist bodily-injury coverage.[1]
Lowest sampled rates
Westfield and Erie were about $31 per month in NerdWallet’s August 2026 minimum-coverage sample.[2]
Electronic verification
The Illinois Secretary of State says registered vehicles are electronically checked for liability insurance at least twice per year.[4]
Driving uninsured can be costly
A conviction for driving uninsured can carry a minimum $500 fine plus plate or registration consequences.[4]
“Liability-Only” Is Useful Shorthand, but Illinois Minimum Coverage Includes UM
Liability coverage can pay covered bodily-injury and property-damage claims that you cause. However, it generally does not repair your own vehicle after an at-fault crash. Illinois also requires uninsured-motorist bodily-injury coverage. Therefore, a legal minimum policy contains more than liability coverage alone.[1]
In addition, Illinois requires underinsured-motorist bodily-injury coverage when you choose UM bodily-injury limits above the statutory minimum. UIM can apply when an at-fault driver has insurance but not enough liability coverage. Your selected UIM limit and policy terms determine how the coverage responds.[3]
Other people: liability can pay covered injury and property-damage claims you cause, up to the policy limits.
You and covered persons: required UM bodily-injury coverage can respond to qualifying uninsured or hit-and-run losses.
Your own car after an at-fault crash: minimum coverage does not include collision.
Theft, hail, fire and many non-collision losses: minimum coverage does not include comprehensive.
Illinois Minimum Auto Insurance Requirements
The Illinois Department of Insurance lists the following minimum protections for private passenger auto insurance.[1]
Bodily injury per person
This is the minimum bodily-injury liability limit for one person injured in a covered accident.
Bodily injury per accident
This is the minimum total bodily-injury liability limit for several injured people in one covered accident.
Property damage
This is the minimum property-damage liability limit per covered accident.
UM bodily injury per person
This is the minimum required uninsured-motorist bodily-injury limit per covered person.
UM bodily injury per accident
This is the minimum required uninsured-motorist bodily-injury limit for several covered people in one accident.
When an insurer or comparison site says “Illinois minimum coverage,” check the full quote. It should also contain the required uninsured-motorist bodily-injury coverage.
Ask About Uninsured Motorist Property Damage if You Skip Collision
Illinois Department of Insurance guidance says insurers must offer uninsured motorist property damage, or UMPD. This coverage can pay for qualifying vehicle damage caused by an identified at-fault uninsured driver. Illinois says UMPD may be purchased with or without collision coverage. In addition, insurers must offer it with a maximum $250 deductible.[1]
However, UMPD is not a replacement for collision or comprehensive coverage. It applies in narrower situations. Therefore, review the policy terms before relying on it. In particular, check how the policy treats hit-and-run crashes and unidentified vehicles.
A driver who wants to avoid the cost of collision coverage may still want to price UMPD. It can provide narrower protection against an identified uninsured at-fault driver.
Published Minimum-Coverage Rates in Illinois
NerdWallet’s August 2026 analysis found a statewide minimum-coverage median of about $419 per year, or $35 per month, for its 35-year-old sample driver.[2] The methodology used a 2023 Toyota Camry LE and 12,000 annual miles. It also assumed good credit, no violations, and Illinois minimum required coverage.[5]
Westfield
Published median for the sample 35-year-old minimum-coverage profile.
Erie
Published median for the same sample profile.
Allstate
Published median for the same sample profile.
Mercury
Published median for the same sample profile.
Auto-Owners
Published median for the same sample profile.
NerdWallet says its rates are generated through Quadrant Information Services. Personal rates will differ, and insurer underwriting can change.[5] Availability may change as well. Therefore, use these numbers to create a quote shortlist rather than predict your final premium.
NerdWallet’s August 2026 Chicago analysis reports an average liability rate of about $1,029 per year for the city. It also identifies Westfield as the cheapest liability option in that analysis.[11] Therefore, a statewide company table should not be treated as a quote for Chicago, Aurora, Rockford, Springfield, Peoria, or any specific ZIP code.
Do Not Rank Illinois Insurers by Price Alone
The Illinois Department of Insurance recommends checking several factors before buying a policy. First, confirm that the insurer is licensed. Then review complaint ratios, financial stability, and more than one quote.[1]
NerdWallet’s August 2026 editorial rankings also show why “best” and “cheapest” are different questions. It names GEICO best overall and Travelers as its budget pick. Amica is its claims-service pick, Progressive its coverage-add-ons pick, and Erie its regional pick.[6]
Equivalent quote
Compare identical limits, drivers, vehicles, mileage, and optional coverages.
Illinois authorization
Use regulator tools to confirm the company and producer are authorized.
Regulatory history
IDOI publishes auto complaint information for qualifying companies.
Financial stability
Consider whether the insurer has enough financial strength to meet its claims obligations.
Cheap Minimum Coverage Can Leave a Large Liability Gap
Illinois advises consumers to consider higher liability limits. The statutory minimum may not fully protect you from a lawsuit.[1] The $20,000 property-damage minimum is a clear example. If you cause a covered crash and the property loss exceeds $20,000, your policy does not automatically provide extra coverage for the difference.
There is no universal “right” higher limit. Your assets, income, household exposure, and driving habits all matter. Umbrella-insurance requirements can matter too. In addition, consider how much you could realistically pay after a serious at-fault loss. These factors can help you decide whether higher auto insurance coverage limits offer better financial protection.
Instead of assuming 50/100/50 or 100/300/100 costs “only a few dollars more,” request actual quotes. The additional cost can vary by insurer and driver.
Cheap Minimum Coverage Can Make Sense for Some Paid-Off Cars—but Not Automatically
IDOI notes that physical-damage coverage may not be worth the cost on some vehicles. The vehicle’s value is one important factor.[1] However, there is no universal vehicle-value cutoff. Compare the car’s value with the cost of collision and comprehensive coverage. Also consider your deductible and whether a lender requires the coverage. Finally, ask whether you could afford to repair or replace the car yourself.
Older, paid-off vehicle
The vehicle has limited value, no lender requires physical damage, and you have enough savings to absorb a total loss.
Financed or leased vehicle
The contract may require collision and comprehensive coverage. Therefore, minimum state coverage may not satisfy the lender.
You cannot replace the car
If losing the vehicle would create a major financial problem, dropping physical-damage protection may transfer too much risk to you.
State-Minimum Coverage May Not Satisfy Your Finance Contract
Illinois law does not require collision or comprehensive coverage. However, IDOI says a lender may require physical-damage insurance on a financed vehicle.[1] Collision generally covers qualifying crash damage to your vehicle. Comprehensive, meanwhile, can cover many non-collision losses such as theft, fire, and hail.
Therefore, do not drop collision or comprehensive simply because an older article calls liability-only the “cheapest legal option.” First, check your loan or lease contract. You should also review any deductible requirements set by the lender.
A policy can satisfy Illinois registration law while still violating the insurance requirements of a loan or lease agreement.
Young Drivers, Adults and Seniors Should Expect Different Results
The same insurer will not remain the cheapest for every age group. NerdWallet’s August 2026 Illinois analysis shows how prices can change while using consistent sample assumptions.[2]
A newly licensed teen can receive very different prices depending on the household policy. For example, the cost may change if the teen is added to a parent or guardian policy. The vehicle, discounts, and primary driver can also affect the price. Because of these factors, affordable insurance options for new drivers can vary significantly between households and insurers.
Illinois Allows Credit Information in Personal Auto Rating—but Regulates How It Can Be Used
Illinois regulates the use of credit information and credit-based insurance scores for private passenger auto insurance. For example, insurers may not calculate an insurance score using income, gender, address, ethnic group, religion, marital status, or nationality. The law also limits decisions based solely on credit information. An insurer generally cannot deny, cancel, nonrenew, or set renewal rates using only credit information without considering other applicable factors.[7]
Even so, IDOI says many companies assess credit information when pricing coverage. Some consumers may therefore pay higher premiums depending on their credit profile.[1] For this reason, it is more accurate to discuss a regulated credit-based insurance score. A particular FICO score does not automatically raise every Illinois premium by the same percentage.
The effect varies by insurer, rating model, and driver. Published rate studies can show sample differences, but they do not establish a universal surcharge.
Ask About Discounts That Actually Apply to Your Quote
IDOI lists several discounts that may help reduce auto insurance costs. Examples include auto/home packages, defensive-driver discounts, good-driver discounts, and good-student discounts. Low-mileage, mature-driver, multiple-vehicle, and safety-device discounts may also be available. However, eligibility and savings vary by company.[8]
Defensive-driver discount
IDOI lists an approved defensive-driving-course discount for drivers over age 55.
Good student
IDOI lists good-student discounts for qualifying young drivers who maintain a “B” average or better.
Low annual mileage
Some insurers offer a discount when annual use falls below their qualifying threshold.
Auto + home/renters
Combining policies with one insurer may reduce the total household insurance cost.
Multiple vehicles
Households that insure more than one vehicle with the same company may qualify for savings.
Good driving record
Moving violations and accidents can increase rates. Meanwhile, clean records may qualify for better pricing or discounts.
A clean driving record can affect both eligibility and pricing. Over time, safer driving habits can support lower insurance premiums when insurers reward favorable driving behavior.
How to Compare Cheap Illinois Minimum-Coverage Quotes Correctly
IDOI recommends getting more than one quote. It also warns that an agent’s quote is only an estimate until the insurer determines the accepted premium.[8] Therefore, compare final quotes using the same assumptions whenever possible.
Using identical coverage limits, deductibles, payment terms, and discounts improves the comparison. As a result, car insurance quote comparisons become more useful when deciding which policy offers the best overall value.
Illinois Verifies Insurance Electronically and Can Suspend Registration
The Illinois Secretary of State checks registered vehicles through its Electronic Liability Insurance Verification process at least twice each year. If the first check cannot verify coverage, the state performs another check after 30 days. Registration may then be suspended if coverage still cannot be verified. However, the owner can provide proof that qualifying insurance existed on the relevant date.[4]
Registration reinstatement
After a verification-based suspension, the owner must obtain liability insurance and pay a $100 reinstatement fee.[4]
Driving uninsured
A conviction for driving without insurance can carry a minimum $500 fine and plate-suspension consequences.
Driving with plates already suspended
The state lists a minimum $1,000 fine for driving while plates are suspended because of a prior insurance violation.
Repeat-offender plate suspension
Repeat offenders must serve a four-month suspension before reinstatement. They must also obtain liability insurance and pay the $100 fee.
The Secretary of State’s current mandatory-insurance page focuses on fines and plate or registration suspension. SR-22 requirements apply to specific financial-responsibility situations. Therefore, an SR-22 is not automatically required after every first uninsured-driving conviction.
When Illinois Requires an SR-22
The Illinois Secretary of State requires SR-22 financial-responsibility insurance in several specific situations. These include safety-responsibility suspensions, unsatisfied-judgment suspensions, and revocations. The requirement can also apply to mandatory-insurance supervisions. In addition, it can apply after three or more convictions for mandatory-insurance violations.[9]
The insurer submits the SR-22 directly to the Secretary of State. Illinois says processing may take up to 30 days. In most cases, the required insurance must be maintained for three years. The state also recommends renewing the SR-22 policy at least 45 days before expiration.[9]
If the policy expires or is canceled, the insurer files an SR-26 cancellation certificate. As a result, the driving record can be suspended until the required filing is restored.
An SR-22 is a certificate that demonstrates financial responsibility. The underlying policy must still provide the coverage required for the driver’s situation.
Illinois Has an Automobile Insurance Plan for Eligible High-Risk Drivers
IDOI directs some drivers who cannot find auto insurance to the Illinois Automobile Insurance Plan. This option may help people who are declined because of their driving record or vehicle type. The consumer guide lists four baseline qualifications.[10]
First, the driver must have been turned down by other insurers. The driver must also have, or be eligible for, a valid license. In addition, there must be no outstanding premium owed for prior coverage during the past 36 months. Finally, the vehicle must be safe to drive.
Try the voluntary market first. If insurers decline the risk, an Illinois-licensed agent can explain whether the Plan is appropriate.
How to Find Cheap Illinois Liability Coverage Without Cutting the Wrong Protection
- 1Remember the full legal package. Illinois minimum coverage includes 25/50/20 liability plus 25/50 UM bodily injury.
- 2Use current rates as benchmarks, not guarantees. August 2026 sample prices vary widely by insurer and driver.
- 3Compare equivalent policies. Keep the limits, UM/UIM, drivers, vehicle, mileage, discounts, and policy term consistent.
- 4Price higher liability limits. Illinois warns that statutory minimums may not cover a serious loss.
- 5Do not drop lender-required physical damage. A financed or leased car may require collision and comprehensive coverage.
- 6Use legitimate discounts. IDOI lists driver, student, mileage, bundle, and multi-vehicle savings that may apply.
- 7Avoid coverage lapses. Illinois verifies insurance electronically and can suspend registration when qualifying coverage cannot be verified.
Cheap Liability Car Insurance in Illinois
What is the minimum car insurance required in Illinois?
Illinois requires at least $25,000 bodily-injury liability per person, $50,000 per accident, and $20,000 property-damage liability. In addition, drivers need at least $25,000/$50,000 uninsured-motorist bodily-injury coverage.[1]
Is Illinois minimum coverage really “liability-only”?
Not literally. Liability-only is common shorthand. However, Illinois also requires uninsured-motorist bodily-injury coverage. Therefore, a compliant minimum policy includes more than liability coverage alone.[1]
How much does minimum car insurance cost in Illinois?
NerdWallet’s August 2026 statewide median for its 35-year-old good-driver sample is about $419 per year, or $35 per month. Your quote may be much higher or lower.[2]
Which companies have cheap minimum coverage in Illinois?
In NerdWallet’s August 2026 sample, Westfield and Erie were about $31 per month. Allstate was $35, while Mercury and Auto-Owners were $43. However, these are sample medians rather than guaranteed personal rates.[2]
Does Illinois require underinsured motorist coverage?
Illinois requires UIM bodily-injury coverage when you buy UM bodily-injury limits above the statutory minimum. IDOI says it can cover the gap between your UIM limits and lower liability limits carried by an at-fault driver. Policy terms still apply.[3]
What is uninsured motorist property damage in Illinois?
UMPD is optional coverage for qualifying vehicle damage caused by an identified at-fault uninsured driver. Illinois requires insurers to offer it with a maximum $250 deductible. IDOI also says it may be purchased with or without collision coverage.[1]
Do I need collision and comprehensive in Illinois?
Illinois law does not require collision or comprehensive coverage. However, a lender may require physical-damage coverage on a financed vehicle. For a paid-off vehicle, consider its value, premium, deductible, and your ability to absorb a loss.[1]
Should I buy more than 25/50/20 liability?
Illinois Department of Insurance guidance says consumers should consider higher limits. State minimums may not fully protect you from lawsuits. Therefore, request actual prices for higher limits instead of assuming the increase will be expensive or cheap.[1]
Does credit affect Illinois auto insurance rates?
It can. Illinois regulates the use of credit information in personal insurance. IDOI also says many insurers consider credit information when pricing coverage. However, the law limits how that information may be used.[7]
Can an Illinois insurer deny me solely because of credit information?
Illinois law generally prevents an insurer from denying, canceling, or nonrenewing personal insurance solely because of credit information. Other applicable underwriting factors must also be considered, subject to the statute’s rules.[7]
Are there Illinois discounts for drivers over 55?
Yes, in some cases. IDOI lists a defensive-driver discount for drivers over age 55 who complete an approved course. However, availability and savings depend on the insurer and applicable rules.[8]
Can good students get cheaper Illinois car insurance?
Possibly. IDOI lists a Good Student discount for qualifying young drivers who maintain a “B” average or better. However, each insurer sets its own eligibility requirements and savings amounts.[8]
How often does Illinois verify auto insurance?
The Secretary of State says each registered vehicle’s liability policy is electronically verified at least twice each year. If the first check fails, the state can conduct another check after 30 days.[4]
What happens if Illinois cannot verify my insurance?
Registration can be suspended if qualifying coverage cannot be verified. However, the owner may provide proof that insurance existed on the relevant date. Reinstatement requires liability insurance and a $100 fee.[4]
What is the fine for driving uninsured in Illinois?
The Secretary of State lists a minimum $500 fine for driving uninsured. It also lists a minimum $1,000 fine for driving while the vehicle’s plates are suspended because of a prior insurance violation.[4]
Does one uninsured-driving ticket automatically require SR-22 in Illinois?
No. The Secretary of State does not say that every first insurance violation automatically requires an SR-22. Instead, Illinois lists specific triggering situations. These include mandatory-insurance supervisions and three or more convictions for mandatory-insurance violations.[9]
How long must Illinois SR-22 insurance usually be maintained?
The Illinois Secretary of State says required SR-22 insurance generally must be maintained for three years. Cancellation or expiration triggers an SR-26 notice. As a result, the driving record can be suspended until the filing is restored.[9]
What if no regular insurer will sell me Illinois auto insurance?
Ask an Illinois-licensed agent about the Illinois Automobile Insurance Plan. IDOI says eligible drivers who have been declined in the voluntary market may obtain coverage through the Plan if they meet its requirements.[10]
Compare Illinois Minimum-Coverage Quotes With the Same Limits
Keep the liability limits, UM/UIM selections, drivers, vehicle, mileage, and policy term consistent. Then compare the actual premium and confirmed discounts. This approach provides a more useful comparison than relying on a generic “under $50” promise.
Compare Auto Insurance OptionsReferences
- Illinois Department of Insurance. Auto Insurance Shopping Guide. ↩
- NerdWallet. Cheap Car Insurance in Illinois — August 2026. ↩
- Illinois Department of Insurance. Auto Insurance Definitions — UM and UIM. ↩
- Illinois Secretary of State. Mandatory Insurance and Electronic Verification. ↩
- NerdWallet. Illinois Auto Insurance Rate Methodology. ↩
- NerdWallet. Best Car Insurance in Illinois for 2026. ↩
- Illinois General Assembly. Use of Credit Information in Personal Insurance Act, 215 ILCS 157. ↩
- Illinois Department of Insurance. Auto Insurance Discounts and Ways to Lower Costs. ↩
- Illinois Secretary of State. Financial Responsibility (SR-22) Insurance. ↩
- Illinois Department of Insurance. Illinois Automobile Insurance Plan Eligibility Guidance. ↩
- NerdWallet. Cheap Car Insurance in Chicago — August 2026. ↩