Car insurance in Wisconsin

What Wisconsin law requires you to carry

Wisconsin requires every driver to keep motor vehicle liability insurance in force — or, in limited situations, other approved security such as a surety bond, personal funds on deposit, or a certificate of self-insurance. The insurance mandate itself is administered through the Department of Transportation's Division of Motor Vehicles, while policies, insurers, and agents are regulated by the Wisconsin Office of the Commissioner of Insurance (OCI).

The minimum liability limits are:

Uninsured motorist (UM) coverage is also mandatory, at $25,000 per person and $50,000 per crash, for bodily injury only. That makes Wisconsin unusual: a bare-minimum legal policy here is not just liability, it is liability plus UM.

What the minimum does not include: no personal injury protection (PIP) is required, no medical payments coverage, no underinsured motorist coverage, and no coverage at all for your own car. If you want damage to your own vehicle paid for, you have to buy collision and comprehensive separately.

Liability insurance pays other people's losses when you are at fault — their medical bills, lost wages, pain and suffering, and property damage — and it also pays for a lawyer to defend you against a covered claim. It generally applies when a resident family member or anyone driving with your permission is behind the wheel. Worth knowing: Wisconsin law lets insurers rate based on everyone in the household, and it does not permit insurers to exclude a household driver by endorsement.

For context on what drivers actually spend, the NAIC reported a 2023 average Wisconsin expenditure of about $1,000 per insured vehicle for liability, collision, and comprehensive combined. That is a statewide average across all drivers and cars, not a quote — your own cost depends on your record, vehicle, location, and coverage choices.

Source: OCI, Consumer's Guide to Auto Insurance (PI-057), oci.wi.gov.

Fault, comparative negligence, and how claims actually settle

Wisconsin is an at-fault (tort) state. The driver who caused the crash — through their liability insurer — is responsible for the other side's injuries and property damage. There is no no-fault system and no required PIP, so an injured person's recovery usually comes from the at-fault driver's policy, from their own UM or UIM coverage, or from their own first-party coverages.

Fault is rarely all-or-nothing. Wisconsin applies a comparative negligence rule based on percentages: you can recover from another party only if your share of the negligence is not greater than theirs, and whatever you recover is reduced by your own percentage. If you are found more at fault than the other party, you recover nothing from them. In practice this is why adjusters argue over percentages — a small shift either side of an even split can wipe out a claim.

After a crash, the basics that protect your claim:

• Call the police; a report helps enormously later, including for theft or vandalism.
• Exchange insurance details and collect names, addresses, phone numbers, plate numbers, witness information, the time, date, location and road conditions, vehicle year and make, and visible damage or injuries.
• Photograph the scene and write down your version while it is fresh.
• Report the crash as required. Under Wisconsin's Safety Responsibility Law, a crash involving injury, death, or property damage above the statutory threshold must be reported as soon as possible, and a Driver's Report of Accident must be filed with the DMV within 10 days unless a police agency investigates and files it for you. The DMV checks those reports for insurance; an uninsured driver who appears to be at fault and does not pay for the damage can have their driver's license and vehicle registration suspended.
• Notify your own insurer promptly even if you were not at fault, and cooperate: expect a possible proof-of-loss form, repair and medical bills, and an inspection of the vehicle. Keep receipts and notes of every call, including dates, names, and what was promised.
• If you were driving for work when hurt, file a worker's compensation claim with your employer as well.

Source: OCI, Consumer's Guide to Auto Insurance (PI-057), oci.wi.gov.

Optional coverage that is usually worth having

Underinsured motorist (UIM). Not required in Wisconsin, but your insurer must notify you, when your policy is delivered, that it is available. You may reject it. If you do buy it, state law sets a minimum limit that is higher than the basic liability floor, so you cannot buy a token amount. UIM tops up the bodily injury protection for you and your passengers when the at-fault driver's liability limits are lower than your UIM limits. Because many Wisconsin drivers carry only the legal minimum, this is the coverage people most often skip and later wish they had. Read the policy language carefully — how UIM offsets against what the at-fault driver pays varies between policies.

More UM than the minimum. Mandatory UM is set at the state floor and covers bodily injury only, not your property damage. It also responds to hit-and-run drivers. Raising those limits typically adds very little to the premium relative to the protection gained.

Medical payments. Optional, and insurers must offer it. It pays reasonable medical and funeral expenses for you and your passengers regardless of fault, usually for expenses incurred within a year of the crash, and is often used to cover health-insurance copays and deductibles.

Comprehensive — and in Wisconsin, especially comprehensive. Hitting a deer is a frequent Wisconsin claim, and most policies treat animal strikes as comprehensive, not collision. Comprehensive also covers fire, theft, vandalism, hail, glass breakage, wind, falling objects, and flood. If you carry collision but skip comprehensive, deer and flood damage are not covered.

Collision. Pays when your car hits an object or another vehicle, or overturns, regardless of fault — including damage caused by a hit-and-run vehicle. Lenders generally require both collision and comprehensive while you have a loan, and if your policy lapses the lender can force-place coverage that protects only its own interest, includes no liability protection, and is added to what you owe.

Renting a car? Most personal auto policies extend some coverage to rental vehicles, so check with your agent before buying a collision damage waiver at the counter — though a CDW is usually sensible when renting outside the United States and Canada, where your policy likely will not follow you.

Source: OCI, Consumer's Guide to Auto Insurance (PI-057), oci.wi.gov.

Rules and traps Wisconsin drivers get caught by

Credit information is allowed. Insurers may use credit-based information as one underwriting and rating factor, and it must not be applied in an unfairly discriminatory way. If you are rejected because of your credit report, you have the right to review that report for accuracy at no charge, and your insurer must tell you which credit agency to contact. OCI's stated position is that credit information should not be the sole reason to refuse an application, cancel a new policy in its first 60 days, or non-renew an existing one. OCI publishes a separate fact sheet on the subject (PI-204).

You cannot carve a bad driver out of the policy. Wisconsin does not allow insurers to exclude drivers by endorsement, and every member of the household can be considered in rating. A teenager's record follows the family policy.

Teen alcohol violations reach the parents' policy. If a child in the household is cited for an underage alcohol violation involving the operation or use of a motor vehicle, or for OWI, the insurer may non-renew the parents' policy or raise the premium, and the effect can last at least three years, or until the young driver leaves the household or comes off the policy. Non-confidential Wisconsin driving records, including OWI and underage alcohol operation, are released to insurers on request.

Cancellation and non-renewal timing is fixed by statute (s. 631.36, Wis. Stat.):

• A brand-new policy may be cancelled by the insurer at any time within the first 59 days, effective no sooner than 10 days after written notice.
• Mid-term cancellation is permitted only for non-payment of premium or a substantial change in the risk, with at least 10 days' written notice stating with reasonable precision the facts behind the decision.
• Non-renewal requires notice at least 60 days before expiration, giving the reason and explaining how to apply to the Wisconsin Automobile Insurance Plan. If the insurer misses that notice, coverage must continue on the existing terms for the policy term or one year, whichever is less.
• Renewal on less favourable terms or at a higher premium generally requires 45 days' notice for personal policies (60 for commercial), and does not apply where the only change is a rate increase of less than 25 percent.
• Policies written for an indefinite term or more than a year may be cancelled on an anniversary date with at least 60 days' written notice.

Can't find coverage anywhere? The Wisconsin Automobile Insurance Plan (WAIP) is the state's last-resort market, created by Wisconsin law. You apply through any licensed property and casualty agent and are assigned to an insurer. Rates there usually run higher than in the voluntary market, so keep shopping while you are on the plan.

Repairs and total losses. Your insurer may suggest a repair shop but cannot require one; if you use a facility the insurer has not approved, you are responsible for anything above the settled amount. Aftermarket or used parts may be used, and you can ask that they not be — but again you cover the difference. Payouts are based on actual cash value, not replacement cost, and ACV has no relationship to what you still owe on a car loan. If your car is declared a total loss, you have the right to know how the value was determined, the insurer must use a fair and reasonable method, and your evidence of comparable local vehicles can move the number. Sentimental value is never paid.

Get a binder. When you add a vehicle or change coverage, ask the agent to issue a binder — that temporary written agreement is your evidence of immediate coverage until the policy or endorsement is issued.

Source: OCI, Consumer's Guide to Auto Insurance (PI-057), oci.wi.gov.

Shopping smart without chasing the lowest number

The cost of identical coverage can differ substantially between insurers, because each company weights the rating factors its own way. In Wisconsin, the elements that move your premium most are your age, sex and marital status; where you live (insurers divide the state into rating territories, and metropolitan areas generally cost more); the year, make and model of your car; how much and how you drive; your prior insurance and claims history; and your driving record. Insurers then sort applicants into preferred, standard, and nonstandard tiers, and your agent should be able to tell you which one applies to you.

Ways OCI suggests bringing the cost down: keep a clean driving record, bundle home and auto with one insurer, insure more than one vehicle, ask about good-student, low-mileage, passive-restraint, non-smoker and claim-free discounts, pay in full or by automatic payment where a credit applies, raise your deductible on collision and comprehensive if you can comfortably absorb a small loss yourself, and maintain good credit since many insurers use it as a rating factor. Usage-based (telematics) programmes that monitor mileage, time of day, braking and acceleration are offered by some insurers and are worth asking about — along with the trade-offs of being monitored. Surcharges after a chargeable accident or serious violation must be applied uniformly and filed with OCI.

Two checks before you sign. First, verify that the company and the agent are licensed in Wisconsin using the Look Up tool at oci.wi.gov or by calling OCI — it is illegal for unlicensed insurers to sell here, and coverage bought from one is not protected by the Wisconsin Insurance Security Fund, the state guaranty fund that pays most claims of licensed insurers placed in liquidation. Second, weigh claims service, exclusions, renewability and financial strength alongside the premium. Independent organisations publish insurer financial strength ratings; OCI suggests checking at least two of them and notes those ratings measure financial condition, not the quality of an insurer's policies, agents, or service.

OCI's consumer guide includes a quotation worksheet you can use to line up the same limits and deductibles across several companies — the only honest way to compare.

Source: OCI, Consumer's Guide to Auto Insurance (PI-057), oci.wi.gov.

How to complain to the Wisconsin regulator

Start with the insurer or your agent. Put the problem in writing, keep copies, and give them a chance to fix it. If the answer is unsatisfactory, take it to the Office of the Commissioner of Insurance.

How to file:

• Online complaint form: oci.wi.gov/complaints
• Email: ocicomplaints@wisconsin.gov — include your name and phone number
• Phone for questions or to request a paper form: 1-800-236-8517 or 608-266-3585. OCI cannot accept complaints over the phone; the complaint itself must be in writing.
• Mail: Office of the Commissioner of Insurance, 101 E. Wilson Street, P.O. Box 7873, Madison, WI 53707-7873

What strengthens your complaint: the exact legal name of the insurance company (many names are similar, and naming the wrong one delays the investigation), your policy and claim numbers, a clear timeline, and copies of letters, estimates, and denial notices.

What OCI can and cannot do. OCI investigates whether insurance laws or rules have been violated and can take disciplinary action against licensees, including suspension or revocation of a licence, or fines. What it generally cannot do is resolve a factual dispute between you and your insurer — who was at fault, or what your vehicle was worth. Those may have to go to small claims court or to an attorney. OCI also asks to be contacted immediately if an unlicensed agent or company approaches you, so it can act before someone else is harmed.

Sources: OCI, oci.wi.gov; Consumer's Guide to Auto Insurance (PI-057).