Do I need a lawyer after a car accident in Wisconsin?
Every rule below is quoted from Wisconsin law or a state agency, with a link. Checked September 17, 2026.
The short answer
We can't tell you whether you need a lawyer. We can show you the Wisconsin rules that usually decide it: how fault is split, how long you have, and how injury lawyers are allowed to charge. Many people with only car damage settle directly with the insurer. People with injuries, disputed fault or a claim near a deadline often talk to a lawyer first.
How fault changes your claim
If you were partly at fault
Wisconsin uses modified comparative negligence. You can recover damages as long as your share of fault is not greater than the fault of the person you are suing. If your fault is more than theirs, you recover nothing.
“Contributory negligence does not bar recovery in an action by any person or the person's legal representative to recover damages for negligence resulting in death or in injury to person or property, if that negligence was not greater than the negligence of the person against whom recovery is sought”
How long you have
- 3 years
- to sue for injuriesWis. Stat. § 893.54(1m)(a)
- 3 years
- to sue for car or property damageWis. Stat. § 893.52(2)
- 2 years
- for a family to sue after a deathWis. Stat. § 893.54(2m)
- 120 days
- to notify the government if a public vehicle or road was involvedWis. Stat. § 893.80(1d)(a)
Deadline to sue for injuries
You have three years from the crash to sue for your injuries.
“An action to recover damages for injuries to the person...shall be commenced within 3 years or be barred”
If a government vehicle or road was involved
If a government vehicle or a government owned road was involved, you must give the government body written notice of your claim within 120 days of the crash.
“Within 120 days after the happening of the event giving rise to the claim, written notice of the circumstances of the claim signed by the party, agent or attorney is served on the volunteer fire company, political corporation, governmental subdivision or agency”
How injury lawyers charge in Wisconsin
Contingency fee rules
Wisconsin has no cap on personal injury contingency fee percentages, but the fee must be reasonable, and the agreement must be in writing, signed by the client, and state how the fee is calculated and what expenses the client pays.
“A contingent fee agreement shall be in a writing signed by the client, and shall state the method by which the fee is to be determined, including the percentage or percentages that shall accrue to the lawyer in the event of settlement, trial or appeal”
Questions to ask any lawyer before you sign
- What percentage do you charge, and does it change if the case goes to trial?
- Who pays case costs like records and expert fees if we lose?
- Will you handle my case yourself, or pass it to someone else?
- How long do cases like mine usually take here?
- What is the deadline for my claim, and when will you file?
If the insurer is the problem
File a complaint with the state
You can file a complaint against an insurance company with Wisconsin's Office of the Commissioner of Insurance online, or call their complaints line for help.
“File a Complaint. We handle complaints and answer quick insurance questions.”
Sources on this page
Each one was opened and checked on September 17, 2026.
Know My Claim is not a law firm or a government agency, and this page is not legal advice. Laws change, so check the linked source before you rely on a deadline.