Calculating diminished value

Calculating Diminished Value (17c Formula)

Most insurance companies adopt the 17c formula to calculate diminished value. This was a temporarily approved formula in the case of State Farm v. Mabry, et al.. The 17c formula minimizes diminished value amounts and favors insurance companies. To fight a 17c estimate, we have professionals perform an in-depth, post repair inspection combined with an analysis of the current market for your make and model vehicle.

Step 1 — Use the Kelley Blue Book (Private Party Value) or NADA calculators to determine your vehicle’s pre-accident value.

Step 2 — Enter the pre-accident value into the calculator below, select the severity of damage and the number of miles on your vehicle.