The claim process

What is a first-party vs third-party auto insurance claim?

The distinction: whose policy you claim on

Every auto claim lands on someone's policy. A first-party claim lands on yours: you are the policyholder, and you are claiming under coverages you bought — collision coverage for crash damage, comprehensive coverage for things like theft and weather. A third-party claim lands on someone else's policy: you claim against the liability coverage of the driver whose driving caused your loss. You are the third party to that contract — the policy exists between that driver and their insurer, and you are the outsider it is meant to pay.

The labels describe your relationship to the policy, not simply who caused the crash. That is why a crash another driver caused can still produce a first-party claim: if you ask your own insurer to handle your repairs under your collision coverage, that claim is first-party even though the fault was not yours. The claim against the other driver, for the same damage, is third-party. Same wreck, two possible doors — and the door you choose changes how the claim works.

What changes between them

The deductible. A deductible is the amount you agreed to absorb yourself under your own policy, and it applies to first-party claims — the insurer pays the covered loss above the deductible, not from the first dollar. No deductible applies to a third-party claim. You never agreed to one under the other driver's policy, so nothing is deducted from what that claim pays.

Who investigates. On a first-party claim, your own insurer investigates the loss under the contract it has with you. On a third-party claim, the other driver's insurer investigates to decide what its driver owes — and that investigation is not neutral. Its adjuster works for the company that will pay you, and part of the job is testing your claim: whether their driver was really at fault, and how much of the damage their driver really caused.

Who you negotiate with. A first-party claim is a conversation with a company that owes you a contract. A third-party claim is a negotiation with the other side. Expect the third-party side to move at its own pace, to require fault to be established before it pays, and to treat your demand as an opening position rather than an entitlement. Keep third-party demands in writing, with your evidence attached, the way you would build any claim against someone else's insurer.

Subrogation. If your insurer pays your first-party claim for damage another driver caused, it typically does not stop there. Through subrogation, your insurer steps into your position and seeks back what it paid from the at-fault driver's insurer. Your deductible is often included in what it seeks to recover, so when the recovery succeeds, some or all of your deductible may come back to you. Subrogation is the mechanism that lets you use your own fast coverage without giving up the third-party claim's money.

Which claim you have in common situations

The other driver hit you. You have a third-party claim against their liability insurer — the main path, with no deductible. You may also open a first-party claim under your own collision coverage if you want your insurer to handle the repairs without waiting for the other side.

You hit someone. Your own car's damage is a first-party claim under your collision coverage, deductible included. The other driver's claim for their damage runs against your liability coverage — from their side of the table, that is a third-party claim, and your insurer handles it for you.

Single-car damage. There is no other driver to claim against, so the claim is first-party only. Hitting a fixed object is typically a collision claim; striking an animal is typically treated as a comprehensive claim. Read your own policy to see which of those coverages you carry.

The other driver is uninsured. There is no liability policy to claim against, so the path usually runs back to your own policy — uninsured-motorist coverage, if you bought it. That situation has its own complications, covered in the guide to the other driver having no insurance.

Can both run at once?

Yes, and drivers do it for a practical reason: speed versus deductible recovery. Your own insurer can usually start on your claim without waiting for the other side to accept fault, so a first-party claim gets the car into the shop sooner. The third-party claim avoids the deductible but moves at the other insurer's pace and depends on its fault decision. Running both lets the repairs start on your coverage while the claim against the at-fault driver proceeds, with subrogation moving the money to the right side at the end.

One limit applies to every version of this: you cannot be paid twice for the same loss. If your insurer has already paid for the repairs and the other insurer later pays for the same repairs, that second payment belongs to the recovery, not to you as a windfall. Insurers sort this out between themselves, usually through the subrogation process — but keep both claim numbers and both files clearly labeled so the two claims never get tangled.

A practical sequence

1. Name the claim before you call. Decide whether you are opening a first-party claim, a third-party claim, or both. The answer decides which insurer you call, what you say, and whether a deductible is in play.
2. Report to the right insurer. A third-party claim goes to the at-fault driver's insurer, with their driver's policy details. A first-party claim goes to yours. Each insurer assigns its own claim number — keep them separate and labeled.
3. Put demands in writing. Especially on the third-party side, state what you are claiming and what evidence supports it. Written demands create the record a phone call does not.
4. Ask about subrogation and your deductible. If your insurer pays for damage another driver caused, ask in writing how subrogation will be handled and whether your deductible is part of the recovery it will seek.

Frequently asked questions

Which claim do I file if the other driver was at fault?

You have a third-party claim against the at-fault driver's liability insurer, and that is the claim that owes the loss their driver caused, with no deductible. You can also open a first-party claim under your own collision coverage, for example to get repairs moving sooner, and let subrogation sort out the recovery afterwards.

Do I pay a deductible on a third-party claim?

No. A deductible is part of your own policy, and it applies when you claim under that policy. A third-party claim is made under the at-fault driver liability coverage, which you are not a party to, so no deductible is taken from what that claim pays.

Can I file both a first-party and a third-party claim?

Yes, and drivers often do, using their own coverage for speed while the claim against the at-fault driver proceeds. What you cannot do is be paid twice for the same loss. If both insurers pay toward the same damage, the duplicate recovery is sorted out between them, usually through subrogation.

What is subrogation?

Subrogation is your insurer recovering money it paid on your claim from the party responsible for the loss. If your insurer pays to repair damage another driver caused, it typically seeks that amount back from the other driver's insurer. Your deductible is often included in what it seeks, so a successful recovery can return some or all of your deductible to you.