Understanding Diminished Value in Oregon
What Is Diminished Value?
Diminished value (DV) is the difference between a vehicle's fair market value immediately before an accident and its fair market value after repairs are completed. This loss exists because:
- Vehicle history reports (Carfax, AutoCheck) permanently record the accident
- Buyers and dealers apply "accident penalties" when purchasing vehicles
- The stigma of being an "accident vehicle" reduces market appeal and selling price
Research consistently shows that accident-damaged vehicles sell for 10-25% less than comparable undamaged vehicles, even after quality repairs.
Types of Diminished Value
Inherent Diminished Value (IDV) The most commonly claimed type. The permanent market value reduction due to accident history stigma, regardless of repair quality.
Repair-Related Diminished Value Additional value loss due to incomplete or substandard repairs, or the use of inferior aftermarket or salvage parts.
Immediate Diminished Value The difference in market value immediately after the accident and before repairs.
Oregon Diminished Value Law
Oregon allows accident victims to file diminished value claims against the at-fault driver's property damage liability insurance. Courts have consistently recognized diminished value as a recoverable damage.
Important: Oregon law generally does not allow you to recover diminished value from your own first-party collision coverage — only from the at-fault party's liability coverage.
How to Calculate Your Diminished Value
There are several methods:
The 17c Formula Originally developed by State Farm, this formula starts with 10% of the vehicle's value and applies reduction factors for damage severity and vehicle mileage. Many consider this formula conservative.
Professional Appraisal An independent auto appraisal by a certified diminished value appraiser provides the strongest basis for a claim. A professional appraisal document is significantly more persuasive to insurance companies.
Factors that Affect DV Value
- Vehicle year, make, and model
- Pre-accident market value
- Severity of original damage
- Quality of repairs
- Vehicle mileage
Steps to File a Diminished Value Claim in Oregon
- Document the damage thoroughly — Pre-repair photos are critical
- Obtain a professional DV appraisal — This significantly strengthens your claim
- Determine pre-accident value — Use KBB, NADA, and comparable market listings
- Submit the claim to the at-fault driver's insurer — Include your appraisal and supporting documentation
- Negotiate if necessary — Initial DV offers are often low; appraisals give you leverage