Arkansas Does Not Require Underinsured Motorist Coverage
Arkansas does not mandate underinsured motorist (UIM) coverage. The state requires only liability insurance: $25,000 per person, $50,000 per accident for bodily injury, and $25,000 for property damage. Uninsured motorist coverage is also not required. Both UM and UIM are optional add-ons that carriers must offer, but you can decline them in writing.
For households insuring two or more vehicles, this creates a structural decision point. When multiple household members drive multiple cars, a single at-fault driver's $25,000-per-person liability limit may not cover injuries to everyone in your household. UIM coverage fills the gap when the other driver's policy pays its limit but your medical bills exceed it. The decision is whether to add UIM to one vehicle, all vehicles, or none — and whether the household's total exposure justifies the added premium.
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Get Your Free QuoteArkansas Uninsured Motorist Rate
12.1%
More than one in ten Arkansas drivers carry no insurance. When an uninsured or underinsured driver hits multiple household members in separate incidents, your household's total out-of-pocket exposure compounds quickly without UM/UIM protection.
Insurance Information Institute, 2023
How Underinsured Motorist Coverage Works Across Multiple Vehicles
Underinsured motorist coverage applies per vehicle on your policy. If you add UIM to all three cars in your household, each vehicle carries its own UIM limit. When a household member is injured in a crash and the at-fault driver's liability limit is exhausted, your UIM coverage pays the difference up to your policy's UIM limit.
The structural quirk: UIM does not stack across vehicles unless your policy explicitly allows stacking. Non-stacking UIM means each vehicle's limit applies only to occupants of that specific vehicle at the time of the crash. Stacking UIM (available on some Arkansas policies) lets you combine the UIM limits from all vehicles on your policy, multiplying your total coverage.
Most carriers in Arkansas offer both stacked and non-stacked UIM. Stacked UIM costs more per vehicle but provides significantly higher total protection for multi-car households. Non-stacked UIM is cheaper but limits your recovery to the single vehicle's UIM amount, even if you insure four cars on the same policy.
Multi-car households face compounded underinsured-driver exposure: a single at-fault driver's $25,000-per-person limit splits across multiple injured household members, leaving gaps UIM was designed to fill.
Adding UIM to a Multi-Car Policy in Arkansas
You can add UIM to all vehicles, some vehicles, or none. Adding it to all vehicles on the same policy is the only way stacking becomes available, and stacking must be elected at the time you bind coverage.
For a household with three vehicles, that difference compounds across all three cars.
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When Multi-Car Households Decline UIM in Arkansas
Households with strong health insurance and no high-earner dependents sometimes decline UIM to keep premiums lower. If your household's medical bills would be covered by employer health plans and you carry sufficient liability limits on your own vehicles, the incremental cost of UIM across three or four cars may not justify the protection.
The failure mode: Arkansas's 12.1% uninsured motorist rate means roughly one in eight drivers carries no insurance. UIM is the only coverage that closes that gap.
Declining UIM makes sense when your household's total assets and income are low enough that a judgment-proof at-fault driver poses little incremental risk. It makes less sense when your household includes high earners, retirees on fixed incomes, or anyone whose lost-wage exposure would exceed the at-fault driver's $25,000-per-person liability limit.
Arkansas Minimum Bodily Injury Per Person
$25,000
The state's minimum liability limit is the floor an at-fault driver must carry. When that driver injures multiple household members, $25,000 per person splits quickly. UIM coverage pays the difference between the at-fault driver's limit and your actual damages.
Arkansas Code § 27-22-104
Comparing Carriers That Write Multi-Car UIM in Arkansas
Not all carriers writing multi-vehicle policies in Arkansas offer stacked UIM. Some offer only non-stacked UIM; others let you choose stacking at quote time. When comparing carriers for a multi-car household, confirm whether stacking is available and how the carrier calculates the stacked limit.
Carriers confirmed to write multi-vehicle policies in Arkansas include State Farm, Geico, Progressive, Allstate, Farmers, Nationwide, and Liberty Mutual. Each structures UIM differently: some automatically include UM/UIM unless you decline in writing, others require you to affirmatively add it. The application process for a multi-car policy will present UIM as a line item with a per-vehicle premium and a checkbox for stacking where available.
Structure UIM Coverage Around Your Household's Total Exposure
The decision is not whether UIM is required — it is not — but whether your household's injury exposure across multiple drivers and vehicles justifies the added premium. A household with two working adults, two teenage drivers, and four cars on one policy has higher compounded exposure than a household with two retirees and two rarely-driven vehicles. Stacked UIM makes the most sense when your household includes multiple high-earners or dependents whose lost-wage and medical exposure would exceed a minimally insured at-fault driver's limits. Compare carriers that write your household's vehicle count, confirm stacking availability, and request quotes with and without UIM at the limits that match your liability coverage. Arkansas law does not require UIM, but the state's uninsured motorist rate and low minimum liability limits make it a coverage worth modeling for multi-car households.