What Diminished Value Claims Are and How They Work

What a diminished value claim is

A diminished value claim is a request for money from an insurance company because your car is worth less after an accident, even after repairs. When a vehicle has been in a collision and fixed, buyers will pay less for it than they would for an identical car with no accident history. That difference in value is what you are claiming.

The insurance company that caused the accident (or their policyholder's insurer) is the one you file this claim against. You are not claiming against your own insurance. The claim exists separately from the repair costs — your insurer or theirs already paid to fix the physical damage. This claim is about the remaining financial loss from the accident being on the vehicle's record.

Not every state allows diminished value claims, and the rules vary widely. Some states let you claim it only if you were not at fault. Others allow it in limited situations. A few do not recognize it at all. Your state's rules determine whether you can pursue this claim at all.

Key Takeaways

• Diminished value claims seek payment for the difference between what your car was worth before the accident and what it is worth after repairs, based on the accident history.
• Only the at-fault driver's insurance company is responsible for this claim in most states that allow it, and you file it separately from repair claims.
• Your state must recognize diminished value claims for you to pursue one — some states do not allow them at all, and others restrict them to specific situations.
• You will need documentation of your car's pre-accident value, repair records, and often an independent appraisal to support the claim amount.
• Insurance companies frequently deny or reduce these claims, so understanding your state's rules and having solid evidence makes a difference.

Which states allow diminished value claims

Georgia, Alabama, South Carolina, and the District of Columbia allow diminished value claims in most accident situations. These states have the clearest legal framework for this type of claim, and insurers in these places are accustomed to handling them.

Other states allow diminished value claims only under specific conditions. Some permit them only when you were not at fault in the accident. Others allow them only if the repair cost exceeded a certain threshold, or only for vehicles under a certain age. A handful of states recognize them in theory but have made them so difficult to prove that they are rarely pursued.

Several states — including New York, Florida, and others — do not recognize diminished value claims at all. If your state does not allow them, the at-fault driver's insurance company will deny the claim as a matter of policy, regardless of the evidence you provide.

Before you spend time gathering documentation, check your state's specific rules. Your state insurance commissioner's office or a local attorney can tell you whether your state recognizes these claims and under what conditions.

How to calculate diminished value

There is no single formula that all insurers use. The most common approach is to get an independent appraisal of your car's value before the accident and after the repairs, then claim the difference. You will need documentation of the pre-accident value — your purchase records, recent maintenance receipts, or a professional appraisal from before the accident help establish this.

Some insurers use the 17c formula, a method that applies a percentage of the repair cost to estimate diminished value. Under this formula, diminished value is roughly 10 percent of the repair cost for moderate damage, less for minor damage, and more for severe damage. This is not a legal requirement — it is simply a calculation method some insurers reference — but knowing it exists helps you understand what an insurer might counter-offer with.

The most reliable way to support your claim is a written appraisal from a certified appraiser who inspected the vehicle after repairs and compared it to similar vehicles with clean histories. This costs money upfront (typically $300 to $600), but it gives you a specific, documented figure rather than an estimate. If the claim is large enough, this investment often pays for itself.

Keep all repair invoices, photos of the damage, and the accident report. These documents show the extent of the damage and support why the car's value dropped.

How to file a diminished value claim

Contact the at-fault driver's insurance company directly. You will need the accident report number, the date of the accident, and details about the other driver's policy. Have your repair invoices and any appraisal documentation ready.

Send your claim in writing — email or certified mail — so you have a record of what you submitted and when. Include a cover letter explaining that you are filing a diminished value claim, the amount you are claiming, and the documentation supporting that amount. Attach copies (not originals) of the repair receipts, photos, appraisal, and accident report.

The insurance company will assign a claims adjuster to review your submission. They may request additional information, ask you to provide a second appraisal, or make a counter-offer. Respond promptly to any requests, and keep copies of everything you send.

If the insurer denies the claim or offers significantly less than you believe is fair, you can pursue the matter through your state's insurance commissioner's office or small claims court, depending on the amount and your state's rules. An attorney who handles insurance disputes can advise you on whether pursuing the claim further makes financial sense.

Why insurance companies deny or reduce these claims

Insurers frequently argue that diminished value is speculative — that you have not actually sold the car, so there is no proof it is worth less. They may claim the repairs restored the vehicle to pre-accident condition, so no value was lost. They may also dispute the appraisal amount or argue that your state does not recognize the claim.

Some insurers simply offer a low counter-offer, betting that you will accept it rather than pursue the claim further. If you have solid documentation and your state allows the claim, a low offer does not mean your claim is invalid — it means the insurer is testing whether you will push back.

The most common reason for denial is that the insurer claims your state does not allow diminished value claims. If your state does allow them, cite the specific statute or case law in your response. If your state restricts them to certain situations (like accidents where you were not at fault), make sure your accident circumstances meet those conditions.

When diminished value claims are not worth pursuing

If the amount you are claiming is small — under $500 or $1,000 — the cost of an appraisal and the time spent on the claim may exceed what you recover. Small claims court has filing fees and requires your time, and the insurer knows this. They may deny small claims knowing you are unlikely to pursue them further.

If your car is very old or has high mileage, diminished value is harder to prove and often smaller in dollar terms. A 15-year-old car with 150,000 miles loses less value from an accident history than a three-year-old car with 30,000 miles, because the older car's value is already low.

If your state does not recognize diminished value claims, or restricts them in ways your accident does not meet, pursuing the claim will waste your time. The insurer will deny it based on state law, and no amount of documentation will change that.

Frequently Asked Questions

Can I claim diminished value if I was partially at fault for the accident?

It depends on your state. Some states allow diminished value claims only if you were zero percent at fault. Others allow them even if you were partially at fault, though the amount may be reduced based on your percentage of fault. Check your state's specific rules before filing.

Do I have to use the insurance company's appraiser, or can I get my own?

You can get your own appraiser. In fact, an independent appraisal from a certified professional often carries more weight than an estimate from the insurer's appraiser, because it is not biased toward the insurance company. The insurer may request their own appraisal to compare, but you are not required to use only theirs.

What if the at-fault driver does not have insurance?

If the other driver was uninsured, you would file a diminished value claim against your own insurance company under your uninsured motorist coverage, if your state and policy allow it. The rules and restrictions vary by state and by policy, so check your policy documents or contact your insurer directly.

How long do I have to file a diminished value claim?

The time limit varies by state, but it is typically one to three years from the date of the accident. Do not wait months to file — the sooner you submit the claim, the fresher the evidence and the easier it is to document the accident's impact on value.

Will filing a diminished value claim affect my insurance rates?

Filing a claim against the at-fault driver's insurance should not affect your own rates, because you are not claiming against your own policy. However, if you were at fault and claimed against your own insurance, that accident would typically affect your rates regardless of whether you also pursued a diminished value claim.