Uninsured Motorist Coverage — Montana
Uninsured and underinsured motorist coverage pays your medical bills and vehicle damage when the at-fault driver has no insurance or insufficient limits to cover your losses.
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What Is Uninsured and Underinsured Motorist Coverage Insurance?
Uninsured motorist coverage (UM) and underinsured motorist coverage (UIM) protect you when another driver causes an accident but lacks adequate insurance to pay for your injuries or vehicle damage. UM applies when the at-fault driver has no insurance at all. UIM kicks in when their liability limits fall short of your actual costs. Your own insurer pays the claim up to your UM/UIM policy limits, then pursues recovery from the at-fault party.
Who Needs Uninsured and Underinsured Motorist Coverage Insurance?
Drivers in Montana should strongly consider UM/UIM if they carry assets worth protecting—home equity, retirement accounts, or significant savings—since a serious accident with an uninsured driver could force you to tap those assets to cover medical bills and lost wages. It's also critical if you finance or lease your vehicle, as collision coverage alone won't cover the gap between your car's value and what you owe if the at-fault driver is uninsured. Families with multiple drivers or high medical costs benefit most, since UM covers all occupants in your vehicle at the time of the crash.
The cost difference between minimum and robust UM coverage is small relative to the financial exposure you're eliminating.
How Much Does Uninsured and Underinsured Motorist Coverage Insurance Cost?
- Stacked versus unstacked coverage—stacked UM/UIM multiplies your per-vehicle limit across all vehicles on your policy, increasing both protection and cost.
- Your ZIP code's uninsured driver rate—areas with higher percentages of uninsured motorists see slightly elevated UM premiums due to increased claim frequency.
- Claim history—prior UM claims can raise your rate at renewal, though less severely than at-fault liability claims.
- Bundling with liability limits—carriers often discount UM/UIM when you carry liability limits equal to or higher than your UM limits.
