On your own policy
Deadline to sue
Quick answers
- Can you claim diminished value in Wisconsin?
- Yes, from the at-fault driver's insurer.
- Does your own insurance pay diminished value in Wisconsin?
- Usually not. The claim is normally against the at-fault driver's insurer.
- What is the deadline for a diminished value claim in Wisconsin?
- You generally have 3 years to sue the at-fault driver for damage to your car (Wis. Stat. § 893.52(2)). Send your written demand well before then.
- How do you file an insurance complaint in Wisconsin?
- File a free complaint with the Wisconsin Office of the Commissioner of Insurance online. It asks the insurer for a written response, but it cannot set the amount you are owed.
Can you claim diminished value in Wisconsin?
Short answer: Yes, from the at-fault driver's insurer.
Third-party: the owner may generally recover the lesser of repair cost or diminution in value, but can recover both repair cost and post-repair loss of value if repairs did not restore the vehicle to its pre-injury value (Hellenbrand v. Hilliard; Paulson v. Allstate). First-party: a policy's repair option does not require restoring pre-loss market value, so no DV is owed after adequate repairs (Wildin v. American Family).
See which states allow diminished value claims.
Does your own insurance pay diminished value in Wisconsin?
Short answer: Usually not. The claim is normally against the at-fault driver's insurer.
A claim on your own collision coverage depends on what your policy promises. Read its definition of "loss" and any exclusion for diminution in value before you ask. The Wisconsin rule above is the starting point; your policy wording can narrow it.
How to file a diminished value claim in Wisconsin
- Finish the repair and get the final invoice showing every part and labor operation.
- Document the pre-accident value of your exact trim and mileage.
- Collect proof of the loss: a vehicle history report showing the accident, written trade-in offers, or an independent appraisal.
- Send a written demand to the at-fault driver's insurer with a specific amount and your evidence.
- If they refuse or lowball, you can sue the at-fault driver in small claims court before the deadline.
How to document the value before and after
- Before: save listings for cars of the same year, trim and mileage from just before the accident, and any records of options, upgrades and maintenance.
- After: get at least two written trade-in or purchase offers from dealers who see the repaired car and its history report.
- Keep the repair invoice, photos of the damage and the history report entry; they show what a buyer will see.
Step-by-step help with each part: how to file a diminished value claim.
Will the insurer use the 17c formula in Wisconsin?
Many adjusters calculate diminished value by capping it at 10% of the car's value and then applying damage and mileage multipliers. The result is often a few hundred dollars. It is not based on what buyers actually pay, and you do not have to accept it. How the 17c formula works.
Deadline to file a diminished value claim in Wisconsin
Short answer: You generally have 3 years to sue the at-fault driver for damage to your car (Wis. Stat. § 893.52(2)). Send your written demand well before then.
Property damage claims in Wisconsin generally must be filed in court within 3 years of the accident.
How to file an insurance complaint in Wisconsin
Short answer: File a free complaint with the Wisconsin Office of the Commissioner of Insurance online. It asks the insurer for a written response, but it cannot set the amount you are owed.
If an insurer ignores your claim or will not explain a refusal, the state insurance regulator takes complaints.
Wisconsin Office of the Commissioner of Insurance (OCI)
A complaint is free. The department asks the insurer for a written response and reviews whether state claim rules were followed. It cannot set the amount you are owed.
Points we could not fully confirm
- We could not recheck Wis. Stat. §§ 340.01(55g), 628.46 and 893.52 on the official site; their text comes from archived official pages (2025-2026). We also could not confirm the Commissioner of Insurance complaint page and phone numbers. Call 608-266-0103 to confirm before you file.
- The 3-year property-damage deadline in § 893.52(2) (for claims arising on or after February 6, 2016) is supported by a law-firm state summary, not the act text.
- We confirmed the Wisconsin diminished value cases only through a law-firm 50-state survey (Matthiesen, Wickert & Lehrer); we have not reviewed the opinions or checked the later history of Paulson v. Allstate (Ct. App. 2002).
General information, not legal advice. For advice on your claim, talk to a licensed attorney in Wisconsin.