Does Wisconsin Require Uninsured Motorist Coverage on Auto Policies?
Yes. Wisconsin requires uninsured motorist bodily injury coverage with minimum limits of $25,000 per person and $50,000 per accident under Wis. Stat. § 632.32. Underinsured motorist coverage is separate and optional, but if it is purchased, Wisconsin requires limits of at least $50,000 per person and $100,000 per accident.
Wisconsin requires uninsured motorist coverage for bodily injuries, but the required coverage does not pay for damage to your vehicle. This coverage applies when an insured person is injured by a driver who has no qualifying liability insurance or falls within another uninsured category under Wisconsin law.
Underinsured motorist coverage is different. Wisconsin does not require drivers to purchase UIM coverage, although insurers must notify policyholders of its availability in certain circumstances. UM and UIM address different insurance gaps, so the coverage available after a crash depends on which one applies and the terms of the policy.
Key Takeaways About Wisconsin Uninsured Motorist Coverage
- Wisconsin requires UM bodily injury coverage, at a minimum of $25,000 per person and $50,000 per accident.
- Underinsured motorist coverage is optional. If purchased, its minimum limits are $50,000 per person and $100,000 per accident.
- UM generally applies when the responsible driver has no qualifying insurance or is unidentified. UIM addresses certain crashes where the responsible driver has insurance but insufficient limits under the policy's UIM terms.
- A declarations page shows whether UIM coverage is included and the limits purchased, but the policy language determines how much coverage is actually available after a crash.
- Wisconsin permits anti-stacking provisions and reducing clauses in auto policies, so the amount payable may differ from the limit printed on the declarations page.
What Is Uninsured Motorist Coverage in Wisconsin?
Uninsured motorist coverage pays covered bodily injury damages when an insured person is injured by a driver who qualifies as uninsured under Wisconsin law and the policy. In plain terms, it is coverage under your own auto policy that applies when the driver who caused your injuries has no applicable liability insurance.
UM coverage protects several categories of people beyond just the policyholder:
- The named insured on the policy
- Family members covered by the policy
- Other occupants of the insured vehicle
- The policyholder or covered family members struck as pedestrians by an uninsured or hit-and-run driver
That last point surprises many policyholders. UM coverage is not limited to situations where you were driving or riding in the insured vehicle.
What Are the Wisconsin Minimum Uninsured Motorist Limits?
The Wisconsin minimum uninsured motorist limits are $25,000 per person and $50,000 per accident for bodily injury under Wis. Stat. § 632.32. Those numbers match Wisconsin's minimum bodily injury liability limits.
In practical terms, $25,000 is the maximum the minimum coverage pays for bodily injury to one person in a single crash. The $50,000 figure is the per-accident limit when two or more people are injured. Higher limits are available, and many policyholders purchase coverage above the statutory minimum.
When Does Uninsured Motorist Coverage Apply?
UM coverage generally applies when the legally responsible driver has no applicable bodily injury liability insurance or qualifies as an uninsured motorist under Wisconsin's statutory and policy definitions. That includes several situations beyond the most obvious one.
UM coverage may apply when:
- The responsible driver carries no bodily injury liability policy
- The responsible driver's liability insurer is insolvent
- An unidentified driver causes a hit-and-run collision involving physical contact
- A qualifying "phantom vehicle" causes the crash without making physical contact, provided the statutory requirements are met
Not every unknown-driver accident automatically triggers UM coverage. Wisconsin's phantom vehicle provision under § 632.32 imposes specific conditions.
What Are the Phantom Vehicle Requirements?
Wisconsin imposes extra requirements when an unidentified vehicle causes a crash without making contact. Someone other than the person making the claim must provide evidence supporting what happened. The crash also must be reported to law enforcement or another qualifying authority within 72 hours, followed by a sworn statement to the insurer within 30 days.
Those are real statutory deadlines. A driver who is forced off the road by a vehicle that never made contact faces different requirements than someone struck directly by a hit-and-run driver.
Is Underinsured Motorist Coverage Required in Wisconsin?
Wisconsin underinsured motorist coverage is optional rather than required. Insurers must tell policyholders that UIM coverage is available when issuing certain new policies, but the policyholder may decline it.
If UIM is purchased, Wisconsin requires limits of at least $50,000 per person and $100,000 per accident. Those minimums are higher than the required UM minimums because UIM addresses a different gap: situations where the responsible driver has some insurance, but not enough under the policy's UIM terms.
What Is the Difference Between UM and UIM Coverage?
UM and UIM protect against different insurance gaps. UM applies when the responsible driver has no qualifying insurance. UIM applies when the responsible driver has insurance but qualifies as underinsured under the terms of the injured person's own policy.
| Coverage | When It Generally Applies | Required in Wisconsin? | Minimum Limits |
|---|---|---|---|
| Uninsured motorist (UM) | The responsible driver has no qualifying liability insurance or fits another statutory uninsured category | Yes, for bodily injury | $25,000 per person / $50,000 per accident |
| Underinsured motorist (UIM) | The responsible driver meets the policy's definition of underinsured | No | $50,000 per person / $100,000 per accident if purchased |
In short, UM addresses a driver with no qualifying insurance, while UIM addresses a driver who has insurance but not enough under your policy's definition. Wisconsin allows the policy to define when another vehicle counts as underinsured. OCI's consumer guidance uses a limits comparison: UIM applies when the at-fault party's bodily injury liability limit is lower than the insured's UIM limit.
Why Does the UIM Limit Not Always Equal the Amount Available?
A declarations page showing $100,000 in UIM coverage does not necessarily mean an additional $100,000 is payable after a crash. Wisconsin law permits policies to contain reducing clauses that subtract the amount paid by the responsible driver's liability insurer from the UIM limit.
Here is how that works in practice. Suppose the responsible driver has $25,000 in bodily injury liability coverage, and you have $100,000 in UIM coverage. If the policy contains an enforceable reducing clause, the maximum UIM amount available under that structure would be $75,000, not an additional $100,000 on top of the liability payment.
Not every Wisconsin policy contains the same reducing language, and the specific provisions vary. The number on the declarations page is the limit purchased. The policy language determines how that limit applies after a crash.
Can You Stack Uninsured or Underinsured Motorist Coverage in Wisconsin?
Wisconsin law permits auto policies to contain anti-stacking provisions, so a policyholder with coverage on several vehicles should not assume those limits add together. Wis. Stat. § 632.32 allows policy language stating that similar coverage limits from multiple vehicles or policies may not be combined.
The policy can also limit how much coverage is available when the injured person was not riding in or driving a vehicle at the time of the crash.
Whether stacking is available depends on the specific policy. Wisconsin neither prohibits stacking in every case nor guarantees it. The policy controls within the limits of Wisconsin law.
How Do You Check Whether You Have UM or UIM Coverage?
The declarations page is the starting point for identifying which coverages are in effect and what limits apply. Look for entries labeled uninsured motorist or UM bodily injury, underinsured motorist or UIM, and the per-person and per-accident dollar amounts next to each.
A declarations page might list "Uninsured Motorist Bodily Injury" followed by limits such as 100/300. That usually means up to $100,000 for one injured person and $300,000 for everyone injured in one accident, subject to the policy terms. UIM appears separately if it was purchased. If the declarations page is unclear, check the full policy and endorsements before assuming a particular coverage applies.
Understanding how to read your declarations page helps you identify what is included, but the declarations page is only the starting point. Definitions, exclusions, reducing clauses, anti-stacking provisions, and endorsements appear elsewhere in the policy and affect how the coverage actually works after a crash.
How Is a UM or UIM Claim Against Your Own Insurer Different?
A UM or UIM claim seeks payment under your own insurance contract, but you still must establish the facts that trigger the coverage and support the claimed damages. The payment source changes from the other driver's insurer to yours, but your carrier still evaluates the same core issues.
Because the claim comes from your own policy, coverage language becomes part of the dispute as well. The insurer evaluates not only fault and damages, but also whether the policy's UM or UIM definition applies and which limits govern the claim. After a collision, it also helps to know what to say when you contact your own insurer, especially if UM or UIM coverage may become relevant.
Does Making a UM Claim Mean Wisconsin Is a No-Fault State?
Wisconsin remains an at-fault state even though UM and UIM claims require payment from your own insurer. Fault still matters when determining whether another driver is legally responsible for a UM or UIM claim.
UM and UIM are contractual coverages that can apply when another driver is legally responsible for the crash. They do not replace Wisconsin’s fault-based system, and making a claim under your own policy does not make Wisconsin a no-fault state. Wisconsin’s rules for determining fault after a car accident still apply when responsibility for the crash is disputed.
FAQs About Wisconsin Uninsured Motorist Coverage
What if another insurance policy may cover the driver who caused the crash?
A driver is not necessarily uninsured just because they do not personally own an auto policy. Liability coverage may come from the vehicle owner’s policy or another applicable source. UM coverage becomes relevant only after the available liability coverage is identified and the driver qualifies as uninsured under the policy and Wisconsin law.
Can UM or UIM coverage apply if I was riding in someone else’s vehicle?
It can. Coverage may come from the policy on the vehicle you occupied, your own policy, or another policy that covers you as an insured person. Which policy applies first depends on the policy language and the circumstances of the crash.
What happens if more than one UM or UIM policy could apply?
Multiple policies do not automatically mean their limits can be added together. The policies may contain provisions that determine which coverage applies first or restrict combining limits. Identifying every potentially applicable policy is still important because each one can affect the available coverage.
Can settling with the at-fault driver’s insurer affect a UIM claim?
Yes. A settlement with the at-fault driver’s insurer can affect a later UIM claim, especially if the UIM policy contains notice, consent, or subrogation requirements. The policy should be reviewed before signing a liability release or finalizing the settlement.
What if the other driver’s insurer denies coverage after the crash?
A coverage denial can change which insurance applies, but it does not automatically guarantee a UM claim. The reason for the denial, the other driver’s available coverage, and the definition of an uninsured motor vehicle in your policy all matter. Reviewing the denial alongside the policy can clarify which coverage remains available.
What Should You Do If an Uninsured Driver Caused Your Injuries?
Check the policy that covered you at the time of the crash, including the declarations page and UM or UIM provisions, before assuming which coverage is available or how much it pays. Coverage questions become more complicated when the driver fled, several policies may apply, UIM limits are subject to a reducing clause, stacking is disputed, or the carrier questions whether the policy covers the loss.
Our team reviews the declarations page, full policy, accident facts, and available liability coverage to determine whether UM or UIM applies and what policy provisions affect the claim.
Anderson O'Brien has served central Wisconsin since 1886. If you were injured and need help determining which coverage applies, talk to our uninsured motorist claim attorneys. Call (715) 344-0890 for a free initial consultation.