How to Calculate and Document Diminished Market Value of a Vehicle After Repairs Following a Car Accident in Michigan

The information on this site is for general informational purposes only, may be outdated, and is not legal advice; do not rely on it without consulting your own attorney. See full disclaimer.

Disclaimer: This article is for informational purposes only and does not constitute legal advice.

Detailed Answer

Understanding Diminished Market Value Under Michigan Law

After a car accident, your vehicle may suffer a permanent loss in resale value even when repaired to factory specifications. Under Michigan’s No-Fault Act, you can recover that loss—known as “diminished market value”—from the at-fault driver’s insurer. Michigan law defines property damage recovery to include the difference between a vehicle’s market value before and after the loss. See MCL 500.3145.

Step 1: Establish Pre-Accident Market Value

  • Use industry-standard guides such as Kelley Blue Book or NADA to determine fair market value immediately before the accident.
  • Obtain at least two independent valuations for accuracy.

Step 2: Obtain a Certified Post-Repair Appraisal

  • Hire a qualified vehicle appraiser who specializes in diminished-value estimates.
  • Request a written report detailing condition, mileage, and market comparables after repairs.

Step 3: Calculate the Diminished Market Value

Subtract the appraised post-repair market value from the pre-accident market value:

Diminished Market Value = Pre-Accident Value − Post-Repair Value

Step 4: Document Your Claim

Thorough documentation strengthens your demand. Include:

  • Repair invoices and parts receipts showing work performed and parts used.
  • Before/after photos highlighting damage and repair quality.
  • The full appraisal report from your certified appraiser.
  • A post-repair vehicle history report (e.g., CARFAX) demonstrating the accident record.

Step 5: File Within Michigan’s Time Limits

Under Michigan law, negligence claims (including diminished-value claims) generally must be filed within three years of the accident. See MCL 600.5805. Prompt notice to the at-fault insurer also helps avoid procedural disputes.

Helpful Hints

  • Obtain multiple pre-accident valuations to support your baseline value.
  • Keep all records in a single, organized folder or digital file.
  • Schedule your diminished-value appraisal after repairs settle to capture realistic market value.
  • Use a local appraiser familiar with Michigan market conditions.
  • Follow up in writing with the insurer to confirm receipt of your claim materials.
  • Consider consulting a Michigan attorney if the insurer undervalues or denies your claim.

The information on this site is for general informational purposes only, may be outdated, and is not legal advice; do not rely on it without consulting your own attorney. See full disclaimer.