Aprazio / Guides / Diminished value

What is diminished value, and how do I claim it?

When a repaired car is worth less because of its accident history, who may owe you for it, and how to document the loss.

Start My Appraisal →

Reviewed November 2026 · Written by the Aprazio team

The short answer. Diminished value is the drop in a car's market value that remains after it has been properly repaired, because buyers pay less for a car with an accident history. In many states you can claim it from the at-fault driver's insurer, but your own insurer generally does not pay it. Insurers often use formulas that produce low figures, so a documented, comparable-based appraisal gives you a stronger claim.

What diminished value is

A car with an accident on its record is usually worth less than the same car with a clean history, even when the repair is perfect. Buyers worry about hidden damage and reduced resale appeal, and vehicle history reports show claims and repairs. That difference in market value is the diminished value. It is separate from the cost of the repair itself.

Three kinds of diminished value

  • Inherent. The loss that comes from the car's accident history alone, even after a good repair. This is the type most people mean.
  • Repair-related. The loss that remains when repairs are incomplete or of poor quality, such as mismatched paint or panel gaps.
  • Immediate. The loss in value measured right after the accident, before repair. It is less often used in claims.

Who can be asked to pay

The answer depends on whose fault the accident was and on your state:

  • The at-fault driver's insurer (a third-party claim). In many states, you can claim diminished value from the at-fault party's liability insurer, as part of the damages for harm to your property.
  • Your own insurer (a first-party claim). Most policies do not pay diminished value, and many states do not require them to. A few states, Georgia being the best known, have allowed first-party claims. Check your policy and your state's rules.

State law also sets how long you have to file, and the deadline can be shorter than you expect. Do not wait to find out.

How insurers calculate it, and why it is often low

Some insurers use a formula, commonly called the 17c formula, that starts with a cap of about 10% of the car's pre-accident value and then reduces it using mileage and damage multipliers. The result is often much lower than what the market shows. Insurers may also say there is no diminished value at all for older, higher-mileage vehicles, or when the damage was minor.

A formula is not the same as evidence. What a claim should rest on is what buyers in your market actually pay for a car like yours with and without an accident history, which is what an appraisal documents.

How to document your claim

  • The repair estimate and final invoice, and photos of the damage and the repaired car.
  • Photos and records showing the car's condition and mileage before the accident.
  • The insurer's evaluation and any formula it used.
  • An independent appraisal of the pre-accident value and the post-repair value, with comparable sales and clear adjustments.
  • Records of the car's options, maintenance and any recent work.

Present the claim in writing, point to the evidence, and keep copies of everything. If the insurer will not engage, you can contact your state's department of insurance, and you may want legal advice, including about small claims court.

What it costs and what we need

A Diminished Value appraisal starts at $595 as a Virtual Appraisal, and the exact flat price is shown before you pay. A claim-ready packet is an optional +$95: it includes a cover letter and a one-page summary written to hand to an adjuster. The fee does not depend on the value we conclude. The report is delivered within 72 hours (business days) of receiving your complete details. See how much a car appraisal costs.

It will not guarantee a payment, and an insurer is not bound by it, but it gives you a clear, supported number instead of a formula. If the car was totaled rather than repaired, see how to dispute a total loss offer.

Frequently asked questions

Can I claim diminished value from my own insurance?

Usually not. Most policies do not cover it, and many states do not require them to. A few states allow it. Check your policy and your state's rules.

Can I claim diminished value if the accident was my fault?

Generally the claim is made against the at-fault party's insurer, so if you were at fault, you typically have no third-party claim. Check your state's rules and your policy.

How much is diminished value usually?

It varies widely with the car, the damage and the market. It is usually larger for newer, higher-value, low-mileage cars with significant repairs, and smaller for older, high-mileage cars with minor damage.

Does a car with a lien or lease qualify?

Often yes, though the claim may involve the lender or lessor. Ask the claims handler how it applies.

How long do I have to file?

It depends on your state and on whose insurer you are claiming against. Some deadlines are short, so act as soon as the repair is done.

Does this apply to a repaired car, or one the insurer totaled?

A repaired car. If the insurer declared it a total loss and the offer is too low, that is a different issue. See our total loss dispute guide.

Repaired car worth less? Get an independent, USPAP-based diminished value appraisal from $595, ordered entirely online. Start My Appraisal →

This guide is general information, not legal or insurance advice. Aprazio is not a law firm or an insurance adjuster, and rules and deadlines vary by state and by policy. Check your own policy and your state's rules, and speak with an attorney if you need legal advice.

Sources

  • State rules on diminished value vary. Confirm yours with your state's department of insurance. California consumers can start at insurance.ca.gov.

Related

How to dispute a total loss offer · Will insurers accept an online appraisal? · How much does a car appraisal cost?