Updated June 2026
What Is Liability Insurance Insurance?
Liability insurance splits into two components: bodily injury liability, which pays medical bills, lost wages, and pain-and-suffering settlements when you injure someone in an accident, and property damage liability, which pays to repair or replace another driver's vehicle or damaged property like a fence or mailbox. Neither component pays anything toward your own car or your own medical bills. When you cause an accident, your liability coverage pays the other party's bills up to your policy limits, and you're personally responsible for any amount above those limits.
- You rear-end a sedan at a red light. The other driver has $18,000 in medical bills and $9,000 in vehicle damage. Illinois minimum liability coverage is $25,000 per person for bodily injury and $20,000 for property damage. Your bodily injury coverage pays the full $18,000 in medical bills. Your property damage coverage pays the full $9,000 in vehicle repairs. Your own car's damage is not covered — you'd need collision coverage for that.
- You cause a three-car accident on I-55. Two people are injured. Driver A has $42,000 in medical bills. Driver B has $31,000. Vehicle damage totals $15,000. If you carry only Illinois minimum limits of $25,000 per person and $50,000 per accident, your policy pays $25,000 to Driver A and $25,000 to Driver B — the per-person cap. You are personally liable for the remaining $23,000 in medical bills. Your property damage coverage pays the full $15,000 in vehicle damage.
- You lose control on wet pavement and hit a guardrail. Your car sustains $7,000 in damage. You have a concussion and $4,200 in emergency room bills. Liability coverage pays zero dollars. It does not cover single-car accidents where you are the only injured party. You would need collision coverage for your vehicle damage and medical payments or personal injury protection coverage for your own medical bills.
Who Needs Liability Insurance Insurance?
Retirees with assets to protect — a paid-off home, retirement accounts, or savings — should carry liability limits higher than Illinois minimums. One serious accident can generate six-figure medical bills and lost-wage claims, and state minimums of $25,000 per person leave personal assets exposed to lawsuit judgments. Drivers who still carry a car loan or lease are also required by the lender to carry higher liability limits, typically 100/300/100 or more.
Ask three questions: Do you own a home or hold retirement savings a lawsuit could reach? Does your annual mileage and driving pattern create frequent accident exposure, or do you drive fewer than 5,000 miles per year in low-density areas? Can you afford the out-of-pocket cost to settle a claim above state minimums, or would a $50,000 judgment force asset liquidation? If you have assets to protect and cannot absorb a large judgment, carry 100/300/100 or higher. If you are judgment-proof and drive minimally, state minimums may suit your situation.
How Much Does Liability Insurance Insurance Cost?
Liability-only coverage typically adds $40–$75 per month for state minimum limits, or $70–$140 per month for higher limits like 100/300/100. Retirees with clean records and low annual mileage often qualify for the lower end of these ranges.
- Coverage limits chosen — Illinois minimum 25/50/20 costs substantially less than 100/300/100 or 250/500/100, but higher limits protect personal assets if you cause a serious accident.
- Driving record — retirees with no at-fault accidents or violations in the past three to five years qualify for lower liability premiums than drivers with recent claims.
- Annual mileage — carriers offering low-mileage or usage-based programs reduce liability premiums for retirees driving under 7,500 miles per year, a common profile once commuting ends.
- Mature-driver-course discount — Illinois statute requires insurers to offer a discount to drivers who complete an approved mature-driver course, with the discount percentage set by individual carrier filing.
- County and zip code — liability premiums in Cook County and collar counties run higher than downstate Illinois due to accident frequency, medical cost, and litigation rates in metro Chicago.
- Bundling and loyalty — retirees who bundle auto with homeowner or renter policies, or who have been with the same carrier for multiple years, often receive multiline and longevity discounts that reduce liability cost.