Auto Liability Claim Denied by the Other Driver's Insurer: What to Do

You did nothing wrong. Another driver ran a red light, rear-ended you, or crossed into your lane — and now their insurance company is telling you that your claim is denied. This situation is infuriating, but it is also surprisingly common. The other driver's insurer has a financial incentive to pay you as little as possible, and denying claims is one of their primary tools.

Here is how to fight back and get the compensation you are entitled to.

Why Third-Party Liability Claims Get Denied

When you file a claim against another driver's insurance policy, you are called a "third-party claimant." The insurer's primary loyalty is to their policyholder, not to you. This means they will scrutinize your claim aggressively and look for any reason to deny or reduce what they owe.

Common denial reasons include:

Disputed liability. The insurer may claim their driver was not at fault, or that fault was shared. Even if the police report assigns blame to their insured, the insurer is free to dispute that finding during their internal investigation.

Coverage lapses or exclusions. The other driver may not have had active coverage at the time of the accident. They may have been driving a vehicle not listed on their policy, or using a vehicle for commercial purposes excluded under their personal policy.

Failure to cooperate. If the at-fault driver fails to cooperate with their own insurer's investigation — by not providing a statement, not responding to requests — the insurer may deny coverage based on a "failure to cooperate" clause.

Disputed damages. The insurer may accept liability but dispute the extent of your property damage or bodily injury. They may claim your vehicle damage was pre-existing, or that your injuries are not as severe as claimed.

Policy limits exhausted. If multiple claimants are competing for a limited liability policy, your claim may be partially or fully denied because the policy limits were already paid to others.

Your Immediate Steps After a Denial

First, get the denial in writing. If the insurer communicates only by phone, send them a letter requesting written confirmation of the denial, the specific reason, and the policy provision they are relying on.

Then gather everything you have:

• The police accident report
• Photos of the accident scene, damage, and any injuries
• Witness names and contact information
• Medical records if injuries are involved
• Your own dashcam footage, or any available surveillance footage

Request the at-fault driver's insurance policy declarations page through the insurer, or through the court if necessary. This will show their coverage limits and whether the policy was active.

Filing a Claim with Your Own Insurer

If the other driver's insurer denies your claim or drags the process out, you do not have to wait. You can file a claim with your own insurance company under your collision coverage (if you have it) or under your uninsured/underinsured motorist coverage.

Your insurer will pay you and then pursue subrogation — recovering that money from the at-fault driver or their insurer. This process protects you from delays while the liability dispute plays out.

Your insurer has an incentive to fight on your behalf once they have paid out your claim. Use that to your advantage.

Escalating a Third-Party Denial

File a complaint with your state's Department of Insurance if the insurer is acting in bad faith — unreasonably denying a clear liability claim, failing to investigate properly, or misrepresenting policy terms. State regulators have real power to force insurers to reconsider or to penalize bad faith conduct.

You can also send a demand letter directly to the at-fault driver. If their insurance fails to cover your losses, the driver may be personally liable. This threat sometimes motivates the insurer to reconsider, since they want to protect their insured from personal liability exposure.

When the Insurer Disputes Fault

If the denial is based on a disputed liability determination, your strongest tools are:

• The police report (especially if it names the at-fault driver)
• Witness statements
• Traffic camera or dashcam footage
• Accident reconstruction analysis for serious incidents
• Photos of the damage consistent with the collision mechanics you describe

In states with comparative negligence laws, even if you were partially at fault, you may still be entitled to a reduced settlement. An insurer who claims you were 100% at fault when you were clearly only partially at fault is acting in bad faith.

Consider Legal Help

Third-party liability denials — especially those involving personal injury — often benefit from the involvement of an attorney. Most personal injury attorneys work on contingency and offer free consultations. They deal with these denials constantly and know exactly what levers to pull.

Do not wait too long. Statutes of limitations for personal injury and property damage claims are strict — typically one to three years from the date of the accident, varying by state.

Fight Back With ClaimBack

Getting stonewalled by someone else's insurance company is not a dead end. ClaimBack helps you document your case, understand your rights, and file an appeal that demands the compensation you are owed.

Start your appeal at ClaimBack

Related Reading

• How to Write an Insurance Appeal Letter
• Common Reasons Insurance Claims Are Denied
• Internal vs. External Insurance Appeal: Which Path Is Right for You?