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Arson, staged losses and fraud investigations

How insurers and fire investigators test a suspicious fire or theft, what the intentional loss exclusion does, and what to do if your claim is investigated.

4HomeownersInsurance · Published October 10, 2026

When an insurer suspects a fire or theft was staged, it investigates the cause, the owner's finances and the physical evidence, usually under a formal reservation of rights, and may require a sworn examination. Arson-for-profit is the most serious form of hard fraud, and the policy responds harshly: the standard homeowners form excludes losses an insured causes on purpose. But suspicion is not proof, and many claims that trigger an arson review are accidents, so knowing how the process works protects an honest owner as well as the insurer.

What the policy says

The ISO HO-3 (HO 00 03 05 11, the 2011 edition hosted by the Maine Bureau of Insurance) contains two provisions that matter in a staged-loss case.

Intentional Loss is a Section I exclusion. It removes coverage for any loss arising out of an act an insured commits or conspires to commit with the intent to cause a loss, and it adds that in that event no insured is entitled to coverage, even insureds who did not commit or conspire to commit the act. Read literally, that includes an innocent spouse. Many states limit that result by statute, by case law or by endorsement so that an innocent co-insured can still recover, and some insurers' forms are written differently. If you are in that position, read your own form and your state's rules; do not assume either result.

Concealment Or Fraud is a condition. It bars coverage for an insured who, before or after a loss, intentionally concealed or misrepresented a material fact, engaged in fraudulent conduct or made false statements relating to the insurance. A lie told after a real accident can cost you a legitimate claim.

The same form's Mortgage Clause says that if the insurer denies your claim, the denial will not apply to a valid claim of the mortgagee, provided the mortgagee gives notice of any change in ownership or occupancy, pays premium on demand if you neglected to, and submits a signed, sworn statement of loss within 60 days after notice from the insurer. In plain terms, a lender can often be paid even when the owner is not. The insurer may then pursue the owner for what it paid (see subrogation). Whether a lender is protected in a given policy depends on its own wording.

Why a loss draws attention

Investigators use three broad questions: did the owner have a reason, a means and an opportunity? Motive and opportunity are what the insurer looks for in the paperwork; means is what the physical evidence shows. None of the common indicators is proof on its own, and most are explained by ordinary life.

Indicator an investigator notes Innocent explanations that are common
Financial stress: missed mortgage payments, a house listed for sale, a business in trouble Many homeowners are under financial strain; the question is whether it connects to the loss
A policy bought or increased shortly before the loss A recent purchase, a new mortgage or a coverage review
Valuables removed before a fire, or a contents list that includes items nobody saw Moving, storage, evacuation ahead of a storm
A vacant or for-sale house Vacancy is a risk factor insurers also underwrite for (see vacant home insurance: when you need it and what it covers)
No sign of forced entry in a reported burglary, or an alarm that was off Forgotten codes, a spare key, a door left unlocked
A fire origin that fire investigators cannot match to an accidental cause Electrical and appliance fires can be hard to reconstruct; see old wiring, electrical fires and insurability

How the investigation runs

  1. Cause-and-origin determination. The fire department or fire marshal examines the scene, and the insurer commonly hires its own fire investigator or engineer. Evidence you need to preserve includes the failed appliance, the electrical panel, the burned device, and any remaining material at the point of origin. Do not discard it, and do not clear the scene until the insurer's investigator says that you can.
  2. A reservation of rights letter. The insurer says it is investigating while reserving the right to deny. This letter is a notice, not a denial. See reservation of rights.
  3. Document requests. Typically financial records, the contents inventory, purchase records, the mortgage statement, communications with contractors, and phone records for a burglary.
  4. A recorded statement or examination under oath. The sworn examination is a policy right, under the duties-after-loss condition, and can include questions about finances. recorded statements and examinations under oath covers how to prepare and why many people bring an attorney.
  5. A decision. The insurer pays, denies or pays in part. A denial for arson or fraud must generally be in writing and state the basis. Prompt-payment timelines may be extended where fraud is under investigation, depending on state law (see how long insurers have to pay a home claim).

Two practical points. First, the insurer's burden of proof for a civil arson defense is in many states lower than the criminal standard, so a denial can stand even if no one is prosecuted. Check your state's rule with an attorney, since it varies. Second, a criminal case and a policy claim run on separate tracks, and what you say in one can be used in the other.

Staged losses beyond fire

Fire is the dramatic case, but a staged loss can also be a burglary with items that were never there, a "vandalism" that the owner did, a water loss created by cutting a line, or damage to a house exaggerated with a contractor's help. A related variation is staged damage by contractors, which is addressed in contractor fraud after storms: how it works and how to stop it. The practical test for any of these is whether the physical evidence, the timeline and the paper record agree with the story. Dishonest claimants are caught most often because the paper does not match: an item the claimant says was stolen that appears in a resale listing, a receipt dated after the loss, a photograph with metadata that contradicts the date.

If your honest claim is being investigated

  • Report the fire or loss promptly and truthfully, including previous claims and financial facts the insurer asks about.
  • Keep everything. Damaged items, the scene, photographs, receipts, bank records, communications.
  • Answer in writing where you can, and answer only what is asked.
  • Do not guess or fill gaps. "I don't remember" is an acceptable answer; a wrong number given with confidence is a problem later.
  • Get a lawyer early if the insurer requests a sworn examination, if the fire marshal lists the cause as undetermined or incendiary, or if the reservation of rights letter alleges fraud. Criminal exposure is possible, and an attorney can separate it from the civil claim.
  • Keep the lender informed. The mortgage company needs to know about a major loss; see why your mortgage company is on the claim check.
  • Use the regulator if the process stalls. A complaint to your state insurance department, covered in how to file a complaint with your state insurance department, does not substitute for a lawyer but does put the insurer on notice.

Key takeaways

  • The standard HO-3's intentional loss exclusion removes coverage for losses an insured causes on purpose, and its concealment or fraud condition removes coverage for an insured who lies.
  • Many states protect an innocent co-insured, such as a spouse, even though the 2011 ISO wording alone would not; check your own form and state law.
  • A lender may be paid even when the owner is denied, if the mortgage clause conditions are met.
  • Investigators look at motive, means and opportunity, but common indicators such as financial stress or a recent coverage change are not proof.
  • If your claim is investigated, preserve the scene and records, never guess in a statement, and consult an attorney before a sworn examination.

Terms used in this guide

Intentional loss An exclusion for damage arising from an act that an insured commits or conspires to commit with the intent to cause a loss, such as arson of one's own home. Moral hazard The risk that holding insurance leads someone to cause or inflate a loss, or to take less care, because the insurer rather than the owner bears the cost. Examination under oath A formal, recorded question-and-answer session under oath that an insurer can require of a claimant, usually led by the insurer's attorney. Reservation of rights A written notice that an insurer is investigating or paying a claim but keeps the option to deny coverage or limit payment later if the facts warrant it. Mortgagee clause The policy condition that gives the lender its own right to be paid for dwelling losses and protects that right even when the owner's claim is denied. Proof of loss A signed, sworn statement of what happened and what you are claiming, which most policies require within a set number of days.

Related tools

Home insurance claim checklist Work through the steps of a homeowners claim in order, with extra steps for water, wind, fire or theft, and tick them off as you go.

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