Typical diminished value amounts
| Damage | Typical range | Notes |
|---|---|---|
| Minor damage (bumper, small dent) | $500–$2,000 | Light hit on vehicle history |
| Moderate damage (multiple panels) | $2,000–$5,000 | The typical claim range |
| Severe / frame damage | $5,000–$15,000+ | Major, lasting value hit |
| Luxury / exotic vehicles | Higher across the board | Same percentages, bigger numbers |
Who can actually file
Diminished value is almost always a third-party claim — meaning you file against the at-fault driver’s insurance, not your own. Your own policy’s contract with you typically excludes diminished value on first-party claims. The major exception is Georgia, where case law allows first-party diminished value claims against your own insurer.
You need to be not at fault (or less at fault, depending on your state’s rules), and the car needs to have been worth enough for the loss to matter — DV on a 15-year-old beater with 200k miles is real but rarely worth pursuing. Leased vehicles are a special case: the leasing company technically owns the diminished value claim, though many will assign it to you if you ask.
How to file in five steps
- Establish pre-accident value. Pull KBB, Edmunds, and comparable listings for your exact year, trim, mileage, and condition — before the crash.
- Document the damage and repairs. Keep the final repair invoice, all photos, and the vehicle history report showing the accident entry.
- Get a diminished value appraisal. A licensed auto appraiser charges roughly $300–$500 for a formal DV report. Doing it yourself? HonestFix’s Diminished Value Claim Kit ($49) includes demand-letter templates, documentation checklists, and valuation worksheets that walk you through the same process.
- Send a demand letter to the at-fault insurer. State your number, attach your evidence, and give a response deadline. Certified mail, return receipt.
- Negotiate. The first offer — if there is one — will be low. Counter with your documentation. Most claims settle without lawyers; small claims court is the backstop if the insurer won’t engage.
Beware the 17c formula
If you research diminished value, you’ll meet “17c” — a formula from a Georgia court case that caps diminished value at 10% of the car’s value, then applies damage and mileage modifiers that shrink it further. Insurers love 17c because it’s simple and it’s low.
Here’s the catch: 17c is only binding law in Georgia, and even there it originated as a way to calculate what an insurer owes its own policyholder. In most states, real diminished value is established by appraisals and comparable sales — and it’s frequently higher than 17c produces. If an adjuster presents a 17c number as the final word, that’s a starting position, not a verdict.
Related cost guides
Frequently asked questions
What is diminished value, exactly?
It’s the difference between what your car was worth right before the accident and what it’s worth after being repaired. Even a perfect repair leaves an accident on the vehicle’s history, and the market discounts for that — that discount is the diminished value you can claim.
Can I file a diminished value claim if the accident was my fault?
Generally no. Diminished value is a third-party claim against the at-fault driver’s insurer. If you caused the accident, your own policy’s contract with you almost certainly excludes it — Georgia’s first-party rule being the notable exception.
How is diminished value calculated?
Properly, by appraisal: comparing your car’s pre-accident market value against its post-repair value using comparable sales and history-report impact. Insurers often counter with the 17c formula (10% of value minus modifiers), which tends to understate the real loss — treat it as their opening number.
How long do I have to file a diminished value claim?
It’s governed by your state’s statute of limitations for property damage, typically 2–4 years from the accident date. Don’t wait that long, though — evidence is freshest and negotiations go smoothest in the first few months after repairs are done.