Wisconsin Car Insurance Laws: Minimums, SR-22, and Penalties

Wisconsin car insurance laws require every driver to carry liability coverage of at least $25,000 per person and $50,000 per accident for bodily injury, plus $10,000 for property damage, along with matching uninsured motorist limits. Your policy also starts with medical payments coverage unless you reject it in writing. Driving without the required coverage can bring fines up to $500, registration suspension, and a three-year SR-22 filing requirement once you want your license back.

Minimum Coverage You Must Carry

Wisconsin Statute 344.33 sets the floor for every auto liability policy sold in the state.1Wisconsin State Legislature. Wisconsin Code 344.33 – Motor Vehicle Liability Policy The required limits are commonly written as 25/50/10:

  • $25,000 for bodily injury or death of one person in an accident
  • $50,000 for bodily injury or death of two or more people in an accident
  • $10,000 for damage to another person’s property

Liability coverage pays the other party when you cause a crash. It covers their medical bills, lost wages, and vehicle repairs up to your limits. It pays nothing toward your own injuries or your own car. Wisconsin’s minimums sit among the lowest in the country, and the $10,000 property cap can disappear quickly against a newer vehicle, which is why many drivers carry higher limits.

On top of liability, every Wisconsin policy must include uninsured motorist (UM) coverage at the same $25,000/$50,000 bodily injury limits.2Office of the Commissioner of Insurance. Frequently Asked Questions – Automobile Insurance UM pays you directly when the at-fault driver has no insurance or cannot be identified after a hit-and-run. It covers bodily injury only, not damage to your vehicle. Repairs to your own car would come from collision coverage, which is optional unless a lender requires it.

Medical payments coverage (MedPay) is the third piece. Insurers must include at least $1,000 per person on every policy, and the coverage stays on unless you reject it in writing. MedPay pays medical expenses for you and your passengers no matter who caused the accident, which makes it useful for emergency room and ambulance bills while a liability claim is still being sorted out.

Underinsured Motorist Coverage Is Optional

Underinsured motorist (UIM) coverage fills the gap when the at-fault driver has insurance but not enough to cover your injuries. Wisconsin does not require it, but your insurer must notify you that it is available and give you the chance to add or decline it.2Office of the Commissioner of Insurance. Frequently Asked Questions – Automobile Insurance

If you buy UIM, the minimum limits are $50,000 per person and $100,000 per accident.2Office of the Commissioner of Insurance. Frequently Asked Questions – Automobile Insurance The payout is generally the difference between your UIM limit and what the at-fault driver’s policy paid. If the other driver carries only the state minimum $25,000 and your UIM limit is $100,000, your own insurer could pay up to $75,000 more. Wisconsin law allows “reducing clauses” that subtract the other driver’s payment from your UIM limit, so the policy language controls what you actually collect.

Proof of Insurance in the Vehicle

Wisconsin Statute 344.62 requires proof of coverage in your immediate possession whenever you drive, and any traffic officer can ask to see it during a stop or at the scene of a crash.3Wisconsin State Legislature. Wisconsin Code 344.62 – Motor Vehicle Liability Insurance Required You can display it as a printed card or electronically on a phone or tablet. If you use a digital card, the officer is not permitted to browse any other content on the device; showing insurance is not consent to search your phone.

Penalties for Driving Without Insurance

The direct fines are the smallest part of the problem:

The Department of Transportation can also suspend the vehicle’s registration. Reinstatement costs $50 per occurrence on top of normal registration fees, though a single $50 fee covers all vehicles you own that were suspended from the same incident.5Wisconsin State Legislature. Wisconsin Code 341.36 – Fee to Reinstate Suspended Registration

If an uninsured driver causes an accident with any bodily injury or at least $1,000 in property damage, the state can require a security deposit covering the estimated damages. Not posting it means immediate suspension of your license and every vehicle registration in your name, and the state can impound those vehicles.6Wisconsin State Legislature. Wisconsin Code 344.14 – Failure to Deposit Security Insured drivers do not face the security deposit because their policy satisfies the requirement.

SR-22 After a Lapse

Getting back on the road after an insurance-related suspension or revocation generally requires an SR-22. Your insurer files this form directly with the DMV to confirm you carry at least the mandatory minimum coverage.7Wisconsin Department of Transportation. Proof of Insurance – Financial Responsibility

The SR-22 has to stay active for three years from the date you become eligible to reinstate.7Wisconsin Department of Transportation. Proof of Insurance – Financial Responsibility If coverage lapses during those three years, the insurer notifies the DMV and your license gets suspended again. Premiums on SR-22 policies run higher because the filing flags you as a higher-risk driver, and the three-year clock restarts if there is another lapse.

How Fault Works After a Crash

Wisconsin is a fault state. The driver who caused the accident is financially responsible, and their liability insurance pays the other parties for medical costs, lost income, and property repairs. Fault is pieced together from the police report, witness statements, and physical evidence at the scene.

When both drivers share blame, Wisconsin applies modified comparative negligence under Statute 895.045. You can recover damages only if your share of fault does not exceed the other driver’s.8Wisconsin State Legislature. Wisconsin Code 895.045 – Contributory Negligence Any recovery is reduced by your percentage of fault. On $50,000 in damages with 30% fault assigned to you, you collect $35,000. At 51% fault, you collect nothing. That cutoff is where most disputed claims actually get fought.

Reporting a Crash and Deadlines to Sue

Statute 346.70 requires immediate notice to local police, the sheriff, or a state traffic officer if the accident involves any injury, $1,000 or more in property damage to one person’s property, or $200 or more in damage to government property other than a government vehicle.9Wisconsin State Legislature. Wisconsin Code 346.70 – Immediate Notice of Accident A written report must also reach the Department of Transportation within 10 days unless law enforcement files one for you. If you are physically unable to report, the vehicle owner takes on that duty.

Separate deadlines govern lawsuits:

Those windows apply to filing in court, not to opening an insurance claim. Insurance claims carry their own policy deadlines that are often much shorter. Three years sounds like plenty, but medical treatment, evidence gathering, and insurer negotiation can consume it quickly.