Subrogation: when your insurer sues the at-fault driver

Subrogation is your insurer's right, once it has paid your claim, to step into your position and collect from the driver who caused the loss. That is why a company that has already fixed your car may send a demand to the other driver's insurer, file an arbitration, or in some cases sue the other driver, sometimes with your name on the paperwork. The money it recovers is meant to repay its payment and, in many states, your deductible too.

This article explains why the right exists, how it is exercised, how the deductible gets back to you, and four situations that can cut it off: a release you sign, a state's made-whole rule, a policy's own wording and the rule that an insurer cannot pursue its own policyholder.

Why subrogation exists

Collision coverage pays for your car without waiting to decide who was at fault, so you get repairs quickly. But the person who caused the crash is the one who should bear the cost. Subrogation reconciles the two: your insurer pays first, then recovers from the responsible party.

The Washington Supreme Court's 2019 opinion in Daniels v. State Farm gives a concise statement of the idea. It describes subrogation as an equitable doctrine "the essential purpose of which is to provide for a proper allocation of payment responsibility," and says it "enables an insurer that has paid an insured's loss pursuant to a policy" to recoup the payment from the party responsible. The court added that the right to pursue the at-fault party is often written into the policy as well (Daniels v. State Farm, 444 P.3d 582). Cornell's Legal Information Institute puts it in one sentence: when an insurer pays a policyholder, the policyholder's right to sue the responsible party may pass to the insurer (Cornell LII, subrogation).

Two practical consequences follow:

• The insurer has no better rights than you had. It stands in your shoes. If you were partly at fault, the recovery is reduced accordingly in a comparative-fault state; if the other driver has a defense against you, it has the same defense against your insurer.
• The right comes from payment. Until your insurer pays, there is nothing to subrogate. The right usually extends to the amount actually paid, which is why your deductible is a separate question.

The general idea is covered in subrogation explained: how your insurer recovers your deductible; this article is about how it plays out after a specific accident.

How a typical auto subrogation unfolds

1. You file a claim under your own collision coverage. The claims adjuster inspects the car, you pay your deductible, and the insurer pays the rest to you or the shop.
2. The insurer investigates fault. It collects the police report, statements, photos and any vehicle data.
3. A demand goes to the other driver's insurer for what your insurer paid, plus your deductible, plus other covered items such as a rental car.
4. The other insurer accepts, disputes, or splits fault. Most claims between two insurers end here.
5. If they cannot agree, the case goes to inter-company arbitration or, less often, to court.
6. Recovery is shared. The insurer reimburses your deductible, in full or in proportion, according to your state's rules and your policy.

You often hear nothing until step 6. Many insurers report a claim "closed" while the subrogation case continues in the background, which is one reason to ask about it directly.

A worked example (hypothetical)

Say your car's repair bill is $12,000 and your deductible is $1,000. Your insurer pays $11,000. The other driver was entirely at fault and their insurer accepts liability.

Now change the facts: the other insurer argues that you share 30 percent of the blame and agrees to pay 70 percent, or $8,400. Your insurer's payment of $11,000 is only partly recovered. How your deductible is treated depends on the rule that applies:

The figures are invented to show the arithmetic. The table matters because states and policies choose among these approaches, and the next sections show where the rules come from.

How the deductible gets back to you

The deductible is the part of the loss you paid yourself. Without a rule, an insurer could pursue the other driver for its own payment and quietly leave your deductible out of the demand. Regulators have dealt with that.

• NAIC Model Regulation 902. The NAIC's model on unfair claims settlement practices, in its section on automobile insurance, says insurers shall, on the claimant's request, include the first-party claimant's deductible in subrogation demands; recoveries are to be shared on a proportionate basis unless the deductible was otherwise recovered; and no expense can be deducted from the deductible recovery unless an outside attorney is retained to collect it, in which case only a pro rata share of the allocated loss adjustment expense may be deducted (NAIC Model Regulation 902). A model is only a template; each state decides whether and how to adopt it.
• California. 10 CCR 2695.7(q) requires an insurer making a subrogation demand to include the first-party claimant's deductible in every demand, and to share recoveries on a proportionate basis unless the claimant already recovered the full deductible. The insurer may not take legal or other expenses out of the deductible recovery unless it used an outside attorney or collection agency, and then only a pro rata share of allocated loss adjustment expense (California Code of Regulations, 10 CCR 2695.7).
• Washington. WAC 284-30-393 says the insurer must include the insured's deductible in its subrogation demands, with any recovery allocated first to the insured for the deductible, "less applicable comparable fault." As amended with an effective date of October 18, 2026, it also requires the insurer to keep its insured regularly informed of its subrogation efforts, meaning contact within 60 calendar days after the start of the subrogation process and at least every 180 days after that until the insured's interest is resolved (WAC 284-30-393).

Other states have their own rules or none. To find out what applies to you, search your state insurance department's website for "subrogation" and "deductible," or ask the insurer which rule it follows and in which regulation.

The made-whole doctrine

The made-whole doctrine says that when an insured has not been fully compensated for a loss, the insured is repaid first and the insurer takes only what is left. It is an old equitable principle, and states disagree about how far it reaches in auto property claims.

Daniels is the best-known recent test. After a three-vehicle crash near Federal Way, State Farm paid for the repair of Lazuri Daniels's car, less her $500 deductible. GEICO, which insured the driver who hit her from behind, agreed that its insured was 70 percent at fault and paid State Farm for that share. State Farm then reimbursed Daniels 70 percent of her deductible. She sued, arguing that the made-whole doctrine, Washington's insurance regulations and State Farm's policy each required her to get her full deductible back before State Farm kept anything. The trial court dismissed the case and the court of appeals affirmed, but the Washington Supreme Court reversed. It held that her complaint stated valid claims under the common law, under the state regulations, and under State Farm's policy language, and sent the case back to the trial court (Daniels v. State Farm).

Two cautions about reading that decision:

• It was a ruling on a motion to dismiss, so the court decided that her claims could go forward, not that she would ultimately win on the facts.
• It applies Washington law to a fault-free insured. Other states treat the question differently, and some make the policy's wording decisive. Washington's rule has also continued to change by regulation, as the amended WAC above shows.

If your insurer takes less than a full recovery from the other side, ask in writing how the deductible was calculated and which rule it relied on.

Your release and what it can do to the claim

The most avoidable way to damage a subrogation claim is for you to sign something that gives up your rights against the at-fault driver after your insurer has paid. Auto policies typically require you to do nothing after a loss that impairs the insurer's right to recover.

Courts have dealt with the problem differently. In Home Insurance Co. v. Hertz Corp. (Ill. 1978), the insured signed a general release of all claims against the defendants in settling his own injury suit; the defendants knew the insurer had already paid property damage and medical payments claims. The Illinois Supreme Court held that an unlimited release signed for a payment that did not specifically include an amount for the insurer's subrogation interest does not bar a later subrogation action by the insurer if the tortfeasor or its insurance carrier knew of the insurer's interest before the release (Home Insurance Co. v. Hertz Corp., 71 Ill. 2d 210). That is one state's rule, decided against earlier appellate rulings that went the other way. Other states can reach a different result, and a policy that says you must not impair the insurer's rights gives the insurer a basis to complain if you do.

What this means in practice:

1. Tell your insurer before you sign any release, including one with the at-fault driver's insurer that covers your injuries.
2. Do not settle your own claim for "everything" if your insurer has paid for the car or your medical bills without confirming how the payment is treated. A release can be written to carve out the claims your insurer already paid.
3. Read the lienholder and payment sections of any settlement. Your health insurer and your own auto insurer may have separate reimbursement rights; see Does cashing a claim check end your claim? Releases explained and dealing with the other driver's insurer: calls, offers and releases.

Whether the other driver's insurer knew of the subrogation claim, and what the state requires, can decide the case. A licensed attorney in your state is the right person for a particular release.

When subrogation is not allowed: your own household and insureds

An insurer generally cannot subrogate against its own insured. The logic is that subrogation exists only against third parties to whom the insurer owes no duty; suing the person it insures would defeat the protection it sold. A survey of the rule by the law firm White and Williams (revised January 2024) quotes Alabama's Moring v. State Farm (1982) for the principle that no right of subrogation arises in favor of an insurer against its own insured, and collects decisions from many states, including Florida, Arizona and Illinois. The survey also shows differences: some states apply the rule when the injured party and the wrongdoer are covered by the same policy, others extend it to separate policies, and some have not settled the question (White and Williams, anti-subrogation survey).

A Minnesota example shows how broadly the rule can reach. In Depositors Insurance Co. v. Dollansky (Minn. 2018), the court read a state statute that bars an insurer from pursuing its own insured in a subrogation action for nonintentional acts to protect anyone covered by the policy, not only the named insured; a person who had permission to use the insured motor home was an insured, so the insurer could not subrogate against him, even though a rental agreement made him responsible for the damage (Simpson Thacher summary of Dollansky).

Applied to cars, and in states that follow the rule, it works like this (the examples are illustrations, not guarantees):

• If your adult child, a listed driver on your policy, backs into your parked car, your insurer pays under collision and, as a general matter, cannot recover from the child as an insured.
• If a friend you allowed to drive your car wrecks it, many policies cover permissive users, which can also block subrogation against the friend. Whether it does depends on your state and your policy.
• If the other driver is covered by a different company and is not an insured under your policy, the rule does not apply to that driver, and your insurer can pursue them as an ordinary at-fault party.

Waivers before a loss

Sometimes a contract waives subrogation in advance, for instance in a lease or a business agreement. A policy may allow that if it is done in writing before the loss, so a waiver you signed for one purpose can limit what your insurer recovers. Read the subrogation condition in your policy and your contracts, and ask the insurer which one controls.

When the insurer sues and when it arbitrates

Most auto subrogation claims between insurers never see a judge. Arbitration Forums, Inc. runs the industry's largest inter-company arbitration programs; its company-history page reports that in 2025 its members filed 1.1 million arbitration disputes and 2.3 million subrogation demands, collectively worth almost $27 billion (Arbitration Forums, company history). Its Automobile Subrogation Forum resolves disputes among insurers, self-insureds and large retention commercial insureds; claims are generally capped at $100,000 unless all parties agree otherwise, and insurers join by signing the Auto Agreement (Arbitration Forums, auto physical damage). See inter-company arbitration: how insurers settle claims among themselves for how those filings work.

An insurer is more likely to sue when:

• The at-fault driver is uninsured or the other insurer is not a participant in arbitration.
• The amount is large, or the law makes arbitration unavailable.
• The other side refuses to respond.
• The fault dispute is serious and the insurer wants a court's ruling.

When a suit is filed, you may see a caption with the insurer's name "as subrogee of" your name. You are not being sued. You may be asked to provide documents or to testify about the crash, and a cooperation clause in your policy generally requires you to help. Where the at-fault driver is uninsured, the insurer may pursue a judgment or a payment arrangement, and for smaller sums a small-claims case is possible; see small claims court for car accident damages: limits and evidence.

What to ask your insurer

A short script gets the answers you need:

1. "Are you pursuing recovery from the other driver or their insurer on my claim? Who is handling it?"
2. "Is my deductible included in the demand?"
3. "If you recover only part, how will my deductible be shared, and which regulation or policy provision sets that?"
4. "Will you tell me when the recovery comes in, and how quickly will you send my share?"
5. "I have a separate injury claim against the other driver. If I settle it, does my release affect your rights?"
6. "If fault is reassigned in your favor after recovery, will you update my claim record?" (See can a not-at-fault accident raise your premium? for why that matters for rating.)

Keep the answers in writing, and calendar a follow-up. In Washington, the amended regulation sets contact points; elsewhere, you are relying on the insurer's practice.

Common questions

Will I get my whole deductible back?

Only if the insurer recovers enough, and it depends on the rule. The same $1,000 deductible comes back in full when the other driver was entirely at fault and pays, in part when fault is split, and not at all if the recovery fails. See the table above.

Do I have to wait for my insurer to pursue the other driver?

No. Your deductible and any loss your insurer did not pay remain your own claim, and you can pursue the other driver yourself, including in small claims, if the amount fits the court's limit. Tell your insurer, so that the two claims do not conflict.

Does subrogation affect my premium?

Paying a claim usually creates a claim record whether or not the insurer later recovers. If the recovery shows the other driver was at fault, ask the insurer whether it changes how the claim is classified for rating.

How long does it take?

It varies from weeks, when insurers accept liability in a demand, to years when a dispute goes to court. Nothing in the regulations discussed above sets a general deadline for finishing recovery, other than Washington's contact schedule.

Key takeaways

• Subrogation lets the insurer that paid your claim recover from the at-fault driver; the insurer takes your place and gets no more than you could have.
• Several regulators require the insurer to include your deductible in its demand and share the recovery; the exact rule depends on your state and your policy.
• Washington's Daniels decision shows how the made-whole doctrine and policy wording can put the insured's deductible ahead of the insurer.
• Do not sign a release without telling your insurer; in some states a release can destroy the insurer's rights, and in others it cannot if the other side knew.
• An insurer generally cannot pursue its own insured, and some states extend that protection to anyone covered by the policy.