What Uninsured Motorist Coverage Actually Pays
Uninsured motorist coverage pays your medical bills, lost wages, and pain-and-suffering damages when another driver causes an accident and carries no liability insurance. In Idaho, 6.4% of motorists drive without insurance. UM coverage steps in when that uninsured driver hits you and cannot pay for the harm they caused.
Idaho does not require you to carry uninsured motorist coverage. The state mandates only liability insurance: $25,000 per person for bodily injury, $50,000 per accident, and $15,000 for property damage. UM is optional, but carriers must offer it when you buy a policy. You can decline it in writing, but if you carry it, the coverage applies to every vehicle on your policy and every person in those vehicles at the time of the accident.
Compare car insurance rates in your state
Get quotes from licensed carriers — no obligation, no spam, results in minutes.
Get Your Free QuoteIdaho Uninsured Motorist Rate
6.4%
One in sixteen Idaho drivers operates without insurance. When an uninsured driver causes an accident, your own UM coverage is the only source of compensation for your injuries if you carry it.
Insurance Information Institute, 2023
How UM Limits Work Across Multiple Vehicles
When you insure two or more vehicles on one Idaho policy, the uninsured motorist limit you select applies per accident, not per vehicle.
This structure matters when a household member is injured in one of your cars. Adding a third or fourth car to the policy does not increase the per-accident limit unless you request a higher limit when you add the vehicle.
Most households assume UM coverage scales with the number of cars on the policy. It does not. The limit you select is the limit that applies to any accident involving any vehicle on the policy, regardless of how many cars you insure. When you add a vehicle mid-term, confirm the UM limit with your carrier. If the existing limit is too low for the household's exposure, request an increase at the time you add the car.
The UM per-accident limit applies to all vehicles on your policy combined. Adding a second or third car does not increase the limit automatically.
What UM Coverage Does Not Pay
UM coverage does not pay for damage to your vehicle. It covers only bodily injury: medical bills, lost income, rehabilitation costs, and pain and suffering. If an uninsured driver totals your car, UM does not repair or replace it. Collision coverage pays for vehicle damage regardless of who caused the accident. If you carry collision, it covers your car and your carrier pursues the at-fault driver for reimbursement. If you do not carry collision and the at-fault driver is uninsured, you have no coverage for the vehicle damage.
UM also does not cover accidents you cause. It applies only when another driver is at fault and that driver carries no liability insurance or carries limits below your own UM limits. If you cause the accident, your liability coverage pays the other party's injuries and property damage. Your own injuries are not covered by UM in that scenario. Personal injury protection, if you carry it, may cover your medical bills after an at-fault accident, but PIP is optional in Idaho and functions separately from UM.
Related Articles
Underinsured Motorist Coverage and How It Differs
Underinsured motorist coverage, often bundled with UM as UM/UIM, pays when the at-fault driver carries liability insurance but their limits are too low to cover your injuries. Idaho requires only $25,000 per person in liability coverage.
UIM coverage applies per person and per accident, just like UM. The structure is identical. When you insure multiple vehicles on one policy, the UIM per-accident limit is shared across all vehicles and all occupants in a single accident.
Carriers in Idaho typically offer UM and UIM as a combined coverage. You select one set of limits and both protections apply. A few carriers offer them separately, but the combined UM/UIM product is standard. When you add a vehicle to your policy, confirm the UM/UIM limits cover the household's total exposure. A household with four licensed drivers and three vehicles faces higher injury risk than a household with two drivers and two vehicles, but the per-accident limit remains the same unless you request an increase.
Idaho Minimum Liability Limits
$25,000 / $50,000 / $15,000
Idaho requires $25,000 per person, $50,000 per accident for bodily injury, and $15,000 for property damage. Many drivers carry only these minimums, leaving you underinsured if they cause a serious accident.
Idaho Transportation Department
When to Carry Higher UM Limits on a Multi-Car Policy
Households that insure multiple vehicles often carry higher liability limits than the state minimum because the household's total asset exposure is higher. The same logic applies to UM/UIM coverage.
A household with teenage drivers, long commutes, or frequent highway travel faces higher accident risk. If a serious accident involves multiple occupants in one of your vehicles, the per-accident UM limit is the ceiling for all claims combined.
Compare Carriers That Write Multi-Car Policies in Idaho
Not every carrier offers the same UM/UIM limit options. When you add a vehicle to your policy or combine two policies after a household change, request quotes that include UM/UIM limits matching or exceeding your liability limits. Carriers writing multi-car policies in Idaho include State Farm, Geico, Progressive, Allstate, American Family, Farmers, Nationwide, USAA, Liberty Mutual, and Travelers. Each carrier structures UM/UIM limits differently, and the cost varies by carrier, vehicle, and household composition.
Compare quotes that include identical UM/UIM limits across carriers. A lower premium with inadequate UM coverage is not a better deal if an uninsured driver causes a serious accident. Use the comparison tool to request quotes with the UM/UIM limits you need, then evaluate the total cost of the multi-car policy with those limits included.