Multi-Car Liability Requirements in Idaho
Idaho 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 $15,000 property damage—the 25/50/15 minimum. Idaho is a fault state, so the at-fault driver's liability coverage pays for injuries and damage after a crash. The multi-car discount applies when two or more owned vehicles sit on the same policy, typically requiring the same garaging address.

Meeting the state minimum keeps you legal. See whether it's enough — get your Idaho quote.
Get your Idaho quoteWhat Shapes Multi-Car Costs in Idaho
Multi-car policy costs in Idaho depend on the vehicles you insure, the drivers on the policy, the coverage selected per vehicle, and the multi-car discount. Carriers including Geico, Progressive, State Farm, Allstate, and American Family write in Idaho and offer multi-car discounts, though the specific discount amount varies by carrier and is not published.
What Affects Your Rate
- Idaho's 25/50/15 liability minimum is the floor each vehicle on a multi-car policy must carry, and higher limits on any vehicle increase that vehicle's portion of the premium.
- The multi-car discount typically requires all vehicles on the same policy and the same garaging address; vehicles titled to different household members may still qualify if they garage together.
- Each vehicle's make, model, year, and use pattern affects its portion of the multi-car policy cost; a 2015 sedan costs less to insure than a 2023 truck, even on the same policy.
- average auto insurance costs vary by coverage level and driving record, below the national average, and multi-car households often pay less per vehicle than single-vehicle policies.
- Adding collision and comprehensive to any vehicle on the multi-car policy increases that vehicle's cost; each vehicle carries its own deductible for physical damage.
- Idaho's 6.4% uninsured motorist rate as of 2023 makes uninsured motorist coverage a common add for multi-car households, and each vehicle can carry its own UM limit.
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Get Your Free QuoteCoverage Types
Multi-Car Insurance
A multi-car policy covers two or more owned vehicles on one Idaho policy, each carrying its own coverage level, and the whole policy earns the multi-car discount. Each vehicle must carry at least the state's 25/50/15 liability minimum.
Liability Insurance
Liability insurance pays for injuries and damage you cause to others in a crash. Idaho requires every vehicle on a multi-car policy to carry at least 25/50/15, and each vehicle can carry higher limits while still qualifying for the multi-car discount.
Full Coverage Insurance
Full coverage combines liability, collision, and comprehensive on a single vehicle. On a multi-car Idaho policy, you can carry full coverage on the financed vehicle and liability only on the paid-off second car, both earning the multi-car discount.
Uninsured Motorist Coverage
Uninsured motorist coverage pays for your injuries when an at-fault driver has no insurance. Idaho does not require UM coverage, but with 6.4% of Idaho motorists uninsured as of 2023, adding it to each vehicle on your multi-car policy protects you.








