Multi-Car Liability Requirements in Illinois
Illinois requires every vehicle on a multi-car policy to carry at least $25,000 bodily injury per person, $50,000 bodily injury per accident, and $20,000 property damage—the 25/50/20 minimum. The state operates under a fault-based system, so the at-fault driver's liability coverage pays for the other party's damages. The multi-car discount applies when two or more vehicles sit on the same policy, typically at the same garaging address, and adding a vehicle mid-term re-rates the entire policy rather than adding a flat amount.
Meeting the state minimum keeps you legal. See whether it's enough — get your Illinois quote.
Get your Illinois quoteWhat Shapes Multi-Car Costs in Illinois
Multi-car policy cost in Illinois depends on the vehicles you insure, the drivers on the policy, the coverage level selected for each vehicle, and the multi-car discount the carrier applies. Illinois's 25/50/20 liability minimum is the floor for every vehicle, and carriers writing here—including Progressive, Geico, State Farm, Allstate, and Farmers—each structure the multi-car discount differently.
What Affects Your Rate
- Illinois's 25/50/20 liability minimum is the floor for every vehicle on a multi-car policy, and higher limits on any vehicle increase the total premium.
- The multi-car discount in Illinois typically requires every vehicle on the same policy and the same garaging address—vehicles garaged at different addresses may not qualify.
- Illinois's 15.2% uninsured motorist rate as of 2023 makes UM coverage required on every vehicle, and the multi-car discount applies to the entire premium including UM.
- Adding a vehicle mid-term re-rates the entire Illinois policy immediately rather than adding a flat amount, and the multi-car discount recalculates with the new vehicle count.
- Among carriers writing in Illinois—Progressive, Geico, State Farm, Allstate, Farmers, and others—multi-car discount structures vary, and comparing carriers shows which applies the largest discount to your specific vehicle mix.
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Get Your Free QuoteCoverage Types
Multi-Car Insurance
A multi-car policy covers two or more vehicles on one policy, each carrying its own coverage level, and earns the multi-car discount when every vehicle sits on the same policy.
Liability Insurance
Liability coverage pays for injuries and property damage you cause to others in an at-fault accident, and Illinois requires 25/50/20 on every vehicle.
Full Coverage Insurance
Full coverage combines liability with collision and comprehensive, covering damage to your own vehicle from accidents, weather, theft, and other events.
Uninsured Motorist Coverage
Uninsured motorist coverage protects you when an at-fault driver has no insurance, and Illinois requires it on every vehicle.
