How to Calculate and Document Diminished Market Value of a Vehicle After Repairs in SC

The information on this site is for general informational purposes only, may be outdated, and is not legal advice; do not rely on it without consulting your own attorney.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. Consult a qualified attorney for advice on your specific situation.

Detailed Answer

Understanding Diminished Market Value in South Carolina

Diminished market value (DMV) is the difference between a vehicle’s fair market value immediately before an accident and its value immediately after repairs. South Carolina does not have a specific statute that defines DMV claims, but insurers must comply with the Unfair Claim Settlement Practices Act (S.C. Code Ann. § 38-77-140). This statute requires insurers to conduct prompt, fair, and equitable investigations and settlements.

Step 1: Establish Pre-Accident Fair Market Value

Use reputable pricing guides (Kelly Blue Book, NADA) and local sales data to determine the vehicle’s value just before the crash. Document:

  • Make, model, year, mileage, and condition.
  • Printed or screenshot copies of guide values and comparable sales listings.

Step 2: Document Post-Repair Value

After repairs, obtain an independent appraisal from a licensed auto appraiser or collision professional. Record:

  • Repair invoices describing work performed.
  • Photos of damage before and after repair.
  • Written appraisal showing post-repair market value.

Step 3: Calculate Diminished Market Value

Subtract the post-repair value from the pre-accident value. Example:

  • Pre-accident value: $15,000
  • Post-repair value: $13,500
  • DMV = $15,000 – $13,500 = $1,500

Step 4: Submit Your Diminished Value Claim

Prepare a claim package including:

  • Written demand letter stating your DMV calculation.
  • Copies of appraisals, repair invoices, photos, and market guide printouts.
  • Reference to S.C. Code Ann. § 38-77-140 to emphasize the insurer’s duty to handle your claim fairly.

Step 5: Negotiation and, If Necessary, Litigation

Most insurers will negotiate once presented with solid documentation. If they deny or undervalue your claim, you may:

  • File a complaint with the South Carolina Department of Insurance.
  • Pursue a civil action in Small Claims Court (claims up to $7,500) or General Sessions (over $7,500).

Helpful Hints

  • Retain all original documents—missing paperwork weakens your claim.
  • Use multiple independent appraisals to support a higher fair market value.
  • Photograph all damage angles before and after repair for clear evidence.
  • Keep a detailed repair timeline with invoices and correspondence.
  • Consult an attorney early if the insurer refuses to negotiate in good faith.

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.