accelerated depreciation

A vehicle loses market value faster after suffering accident damage and repair than it would through ordinary age and mileage alone. This additional, steeper depreciation is what insurers and appraisers call accelerated depreciation. Even when repairs are completed to manufacturer specification, buyers perceive the vehicle as compromised, and the resale price reflects that perception as a permanent discount.

The magnitude varies with accident severity and repair method. A vehicle that has had frame straightening or major structural welding typically loses 10 to 20 percent of its pre-loss value, beyond what depreciation from age would predict. Vehicles with minor collision damage (fender, bumper, light damage to non-structural panels) may experience only 5 to 10 percent additional loss. Some insurance policies explicitly exclude accelerated depreciation claims; others include it as a separate line item in total-loss valuations.

The term matters most in the gap between what insurance companies pay and what owners can actually recover when selling. An insurer may deem a repair 'complete' and pay out based on vehicle value before the loss, ignoring the fact that the vehicle will now fetch less on the open market. Some states allow damage appraisers to factor accelerated depreciation into claims settlements; others do not, leaving owners absorbing the difference themselves.

Appraisers estimate accelerated depreciation by comparing recent market transactions for identical or nearly identical vehicles, separating the value lost to the accident from value lost to age, mileage, and condition. Factors include the extent of structural damage, whether airbags deployed, how visible repairs are to a typical buyer, and the vehicle's age at time of loss. A newer vehicle typically shows higher absolute dollar loss from depreciation, though the percentage loss may be similar.