Accident Depreciation Calculator

Reviewed By: Scott Hickam (MBA, Finance)

Enter the vehicle details and accident severity into the calculator to determine the accident depreciation.

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Accident Depreciation Formula

The following equation is used to calculate the Accident Depreciation.

AD = V_0 - V_1

Where AD is the accident depreciation ($)
V₀ is the pre-accident vehicle market value ($)
V₁ is the post-accident vehicle market value ($)

To calculate the accident depreciation, subtract the post-accident value from the pre-accident value.

What is an Accident Depreciation?

Definition:

Accident depreciation refers to the loss in a vehicle’s market value due to damage sustained from an accident. This reduction in value accounts for potential repair costs, structural issues, and decreased buyer interest stemming from a history of accidents.

How to Calculate Accident Depreciation?

Example Problem:

The following example outlines the steps and information needed to calculate the Accident Depreciation.

First, determine the pre-accident market value of the vehicle. In this example, the car’s value before the accident was estimated at $20,000.

Next, determine the vehicle’s post-accident market value. After the accident, the car’s estimated worth is $16,000.

Finally, calculate the accident depreciation using the formula above:

AD = V₀ – V₁

AD = $20,000 – $16,000

AD = $4,000

FAQ

Does every accident result in depreciation of vehicle value?

Most accidents will lead to some level of depreciation, but the amount varies based on factors like the severity of the damage, the quality of repairs, the availability of parts, and the vehicle’s overall condition and accident history.

How can I minimize accident depreciation?

Working with reputable repair shops, using quality replacement parts, and documenting repairs thoroughly can help maintain more of the vehicle’s value. Keeping detailed records proves that the car was well-maintained and professionally restored.

Can insurance cover the depreciation caused by an accident?

In some cases, certain insurance policies or additional coverage may address diminished value, but this depends on your location and insurance provider. It is best to check with your insurer to understand if they offer coverage specifically for diminished value claims.

Follow-Up Calculations

If a vehicle drops from $18,000 to $15,000 after an accident, that $3,000 in lost value becomes $0.15 per mile if you plan to drive it another 20,000 miles. Using the loss spread over miles helps you compare accident depreciation with fuel, insurance, and maintenance before deciding whether to keep the car.

A $2,400 depreciation hit on a repaired car that you expect to keep for 30,000 km works out to about $0.08 per km in value loss. You can use the cost per kilometer view to put accident damage on the same scale as commuting and delivery expenses, which is useful if you track ownership costs in metric units.

If a car was worth $28,000 before the crash and your accident depreciation estimate is $4,500, its adjusted value is about $23,500, which is a better starting point for lease negotiations or a buyout offer. That is exactly the kind of number you can compare with the price used in a lease deal, since a lower market value can justify a lower cap cost when the vehicle’s history is disclosed.