Louisiana Does Not Require UM/UIM Coverage
Louisiana does not require you to carry underinsured motorist (UIM) or uninsured motorist (UM) coverage. The state's minimum liability requirement is $15,000 per person, $30,000 per accident for bodily injury, and $25,000 for property damage — but UM and UIM are optional. You can legally register and drive every vehicle in your household without either coverage.
That said, every carrier licensed in Louisiana must offer UM/UIM coverage at policy inception and at every renewal. If you decline it, the carrier must document your written rejection. This applies whether you insure one car or four — each vehicle on the policy is subject to the same offer-and-rejection rule.
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Get Your Free QuoteLouisiana Uninsured Motorist Rate
11.7%
More than one in ten Louisiana drivers carries no insurance. UM/UIM coverage protects you when an at-fault driver has no policy or insufficient limits to cover your injuries or vehicle damage.
Insurance Information Institute, 2023
How the Offer-and-Rejection Rule Works for Multi-Vehicle Policies
When you add a second or third vehicle to your Louisiana policy, the carrier treats the addition as a policy change. At that point, the carrier must offer UM/UIM coverage again. If you already rejected it when you started the policy, you will be asked to reject it again for the newly added vehicle. The rejection must be in writing — typically a signed form or electronic acknowledgment.
The offer-and-rejection cycle repeats at every renewal. Even if you rejected UM/UIM coverage last year, the carrier must present the option again when your policy renews. For a household with three or four vehicles, this means the rejection applies to the policy as a whole, not to individual cars — but the carrier's obligation to offer coverage does not disappear just because you declined it before.
Some carriers bundle UM and UIM into a single coverage option; others separate them. Uninsured motorist coverage pays when the at-fault driver has no insurance. Underinsured motorist coverage pays when the at-fault driver's liability limits are too low to cover your damages. Louisiana law requires carriers to offer both, but you can reject one, both, or neither.
Rejecting UM/UIM coverage in writing is the only way to remove it from your Louisiana policy. Verbal declination does not satisfy the state's documentation requirement.
What UM/UIM Coverage Pays For
Uninsured motorist coverage applies when the at-fault driver has no insurance at all. Louisiana's uninsured rate is 11.7%, meaning more than one in ten drivers on the road carries no policy. If an uninsured driver hits your car and injures you or your passengers, your UM coverage pays your medical expenses and lost income up to the limits you selected. It also covers vehicle damage in some policies, depending on how your carrier structures the coverage.
Underinsured motorist coverage applies when the at-fault driver has insurance, but their liability limits are too low to cover your damages. Louisiana's minimum bodily injury limit is $15,000 per person. For a household with multiple vehicles and multiple drivers, this gap can appear quickly in a serious collision.
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How UM/UIM Limits Work Across Multiple Vehicles
When you insure two or more vehicles on one Louisiana policy, your UM/UIM limits apply per accident, not per vehicle. The limits do not multiply by the number of cars you own.
This structure matters for households with multiple drivers. Households with more vehicles and more drivers on the road simultaneously face higher exposure to multi-occupant claims, which can exhaust UM/UIM limits faster than single-car households.
Some carriers allow you to select different UM/UIM limits for different vehicles on the same policy, but most apply a single set of limits across the entire policy. When you add a vehicle mid-term, the carrier will ask whether you want to increase your UM/UIM limits to match the higher exposure. Declining the increase leaves your existing limits in place, which may no longer align with the number of vehicles and drivers you now insure.
Louisiana Minimum Bodily Injury Limits
$15,000 / $30,000
Louisiana's minimum liability requirement is $15,000 per person and $30,000 per accident. A serious collision can produce medical bills far above these limits, leaving you to cover the gap unless you carry UM/UIM coverage.
Louisiana Office of Motor Vehicles
Rejecting UM/UIM Coverage When You Add a Vehicle
If you rejected UM/UIM coverage when you started your Louisiana policy, adding a second or third vehicle triggers a new offer. The carrier must present the coverage option again, and you must reject it again in writing. The rejection form typically lists every vehicle on the policy and asks you to confirm that you decline UM/UIM coverage for the entire policy, not just the newly added car.
The written rejection requirement exists to protect you from inadvertently waiving coverage. Carriers cannot assume you want to continue rejecting UM/UIM just because you declined it before. The state requires explicit, documented consent every time the policy changes or renews. For multi-vehicle households, this means you will see the rejection form more frequently than single-car households — every time you add a vehicle, every time you renew, and sometimes when you make other policy changes that trigger a re-rating.
Compare Carriers That Write Multi-Vehicle Policies in Louisiana
Nineteen carriers write auto insurance in Louisiana and offer UM/UIM coverage as part of their standard policy options. When you compare quotes for a multi-vehicle policy, each carrier will present UM/UIM limits alongside your liability and collision selections. The cost of UM/UIM coverage varies by carrier, vehicle count, and the limits you choose, but it typically adds less to your premium than collision or comprehensive coverage.
Carriers that write multi-vehicle policies in Louisiana include State Farm, Geico, Progressive, Allstate, Farmers, and USAA. Each structures UM/UIM offers slightly differently — some bundle UM and UIM into one coverage option, others separate them — but all must comply with Louisiana's offer-and-rejection rule. When you request quotes, ask each carrier how UM/UIM limits apply across multiple vehicles on one policy, and whether you can select different limits for different cars. Most apply a single set of limits to the entire policy, but a few allow per-vehicle customization.