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Proof of Loss

A proof of loss is the sworn, itemized statement a policyholder gives an insurer setting out what was damaged and how much is being claimed. It is a separate step from reporting the loss, it usually carries its own deadline, and on many policies filing it is what starts the clock for payment.

Last reviewed by Steven Fox, CFP®, EA on

Quick Summary

  • It is not the same as reporting the claim. Notice tells the insurer something happened; the proof of loss states, under oath, what the policyholder says the loss is worth and why.
  • The standard wording gives the policyholder 60 days after the loss to send it in, unless the insurer extends that time in writing. The Standard Flood Insurance Policy and the codified standard fire policy of several states both use that figure.
  • It is the policyholder's number, not the adjuster's. The flood policy says in terms that in completing the proof of loss "you must use your own judgment concerning the amount of loss and justify that amount."
  • It starts the payment clock. Standard wording makes the loss payable 60 days after the insurer receives the proof of loss and the amount is settled by agreement, judgment or appraisal award.
  • Skipping it can be fatal to a claim. The standard suit clause bars an action on the policy unless every requirement of the policy has been met, and the proof of loss is one of them.

Definition

A proof of loss is a formal statement, signed and sworn to by the insured, that sets out the facts of a claimed loss and the amount being claimed under the policy. The Standard Flood Insurance Policy defines it directly as "your statement of the amount you are claiming under the policy signed and sworn to by you," and then lists what it must contain: the date and time of loss, a brief explanation of how the loss happened, the insured's interest and anyone else's in the damaged property, details of any other insurance covering the loss, changes in title or occupancy during the policy term, specifications of damaged buildings and detailed repair estimates, names of mortgagees and other lienholders, who occupied the building and for what purpose, and the inventory of damaged personal property.

The document sits in the middle of the claim, not at the start of it. Giving notice of a loss opens the claim; the proof of loss quantifies it. That sequence is why the two are worth keeping apart: an insured who has phoned in a fire and spoken to an adjuster three times may still have filed nothing that counts as a proof of loss, and on a policy that requires one within a fixed number of days, the clock has been running the whole time.

Advanced Explanation

The deadline is short, it runs from the loss and not from the adjuster's visit, and it can be extended only in writing. Maine's codified standard fire policy, a version of the wording many states enacted, requires that "within sixty days after the loss, unless such time is extended in writing by this Company, the insured shall render to this Company a proof of loss, signed and sworn to by the insured," and then lists the same categories of information the flood policy uses: the time and origin of the loss, the interests of the insured and of all others in the property, the actual cash value of each item and the amount of loss claimed, all encumbrances, all other contracts of insurance, and any change in title, use, occupation, location, possession or exposure since the policy was issued. The Standard Flood Insurance Policy sets the same 60 days and closes the obvious escape route: the adjuster "may furnish you with a proof of loss form, and she or he may help you complete it. However, this is a matter of courtesy only, and you must still send us a proof of loss within 60 days after the loss even if the adjuster does not furnish the form or help you complete it." Under that same policy the insurer may, at its option, accept the adjuster's signed and sworn report in place of the insured's proof of loss, which is how many routine claims are settled without one ever being filed by the policyholder. That is an option the insurer holds, not a waiver the policyholder can assume.

What the document does, in three separate ways. First, it fixes the insured's own number. The flood policy tells the insured to use their own judgment on the amount and to justify it, which means the figure is a claim the insured is prepared to swear to rather than a repetition of the adjuster's estimate. Second, it starts the payment clock. The standard fire wording makes the amount "payable sixty days after proof of loss ... is received by this Company and ascertainment of the loss is made either by agreement between the insured and this Company expressed in writing or by the filing with this Company of an award" under the policy's appraisal clause; the flood policy is written the same way, with a 90-day alternative when the adjuster's report is used instead. Third, it triggers the insurer's own options. Under the standard fire policy the insurer has 30 days after receiving the proof of loss to give notice that it intends to repair, rebuild or replace rather than pay, and the flood policy sets the same 30 days for its equivalent election.

Getting it wrong is one of the few claim mistakes that can end a valid claim. The standard suit clause says no action on the policy is sustainable "unless all the requirements of this policy shall have been complied with," and then adds its own limitation period, two years after inception of the loss in Maine's wording and one year after written denial in the flood policy. A proof of loss that was never filed is a requirement that was never met. The practical protections run the other way too: the flood policy permits an amended proof of loss, provided it is filed within 60 days of the date of the loss, and a mortgagee who would otherwise lose out gets its own backstop, since a mortgagee that submits a sworn proof of loss within 60 days after being told the insured failed to do so keeps its claim even where the insured's claim is denied. Standard fire wording gives the mortgagee a similar 60-day window.

Two claim-practice standards bear directly on the document. The NAIC Unfair Claims Settlement Practices Act, the model law most states have adopted in some form, makes it an unfair claims practice to unreasonably delay investigation or payment "by requiring both a formal proof of loss form and subsequent verification that would result in duplication of information and verification appearing in the formal proof of loss form," and to fail "to provide forms necessary to present claims within fifteen (15) calendar days of a request with reasonable explanations regarding their use." So an insurer is expected to supply the form promptly when asked, and to avoid demanding the same substantiation twice. A model act is not itself law anywhere; what binds is each state's own adoption of it, which is where a policyholder with a dispute about claim handling should look.

How to Remember

Notice opens the claim. The proof of loss prices it, under oath, on the policyholder's own signature, and the payment clock does not start until it arrives.

Used in a Sentence

“The adjuster's estimate was still unfinished seven weeks after the fire, so Maren filed a sworn proof of loss for $42,800 rather than let the policy's sixty-day requirement run out.”

How It Works

  1. Report the loss. Standard wording requires prompt or immediate written notice. This is the notice of loss, not the proof of loss.

  2. Protect the property and build the inventory. Separate damaged from undamaged property, and prepare an itemized list showing quantity, description, actual cash value and the amount of loss claimed.

  3. Complete and swear the proof of loss. The amount is the policyholder's, supported by repair estimates, receipts and the inventory. Request the form from the insurer if it has not arrived; under the NAIC model standard, forms necessary to present a claim are to be provided within 15 calendar days of a request.

  4. Get it in before the deadline, or get the extension in writing. Under the flood policy and the codified standard fire policy alike, that is 60 days after the loss.

  5. The insurer responds. It may exercise its option to repair or replace within 30 days of receiving the proof of loss, accept the amount, reject it in whole or in part, or, where the policy allows, substitute the adjuster's sworn report.

  6. Payment or appraisal. Once the amount is settled by written agreement or by an appraisal award, the standard clause makes the loss payable 60 days after the insurer received the proof of loss and the amount was ascertained.

Consider an example built on the standard fire wording. A kitchen fire on 3 March damages the house and its contents. The policyholder gives notice the same day, then prepares the inventory. Contents are claimed at actual cash value: $26,400 to replace, less $7,950 of depreciation, so $18,450. The contractor's repair estimate for the building is $24,350. The sworn proof of loss therefore claims $18,450 + $24,350 = $42,800. The 60-day window closes on 2 May, and the policyholder delivers the signed and sworn statement on 20 April. The insurer does not elect to rebuild, and on 12 May the two sides agree in writing on the amount. Under the "when loss payable" clause the money is due 60 days after that ascertainment, which is 11 July. Two things in that sequence are worth noticing: the deadline ran from the date of the fire rather than from any step the insurer took, and the depreciation subtracted to reach actual cash value is a separate question from whether the policy will pay that depreciation back later on a replacement cost basis.

Pros and Cons

Pros

  • It puts the policyholder's own figure, with its supporting documents, into the file on the record, rather than leaving the claim defined entirely by the insurer's estimate.
  • It starts a defined payment clock. Without it, "when will this be paid?" has no contractual answer.
  • The content list is a checklist. Working through the required items usually surfaces the documents an adjuster will ask for anyway.
  • Model claim-practice standards back it up: the insurer is expected to supply the form promptly and not to demand the same verification twice.
  • Where a proof of loss was filed and the amount is disputed, the appraisal clause gives both sides a route to an amount without litigation.

Cons

  • The deadline runs from the date of loss, not from the adjuster's inspection or the contractor's estimate, so it can expire while the claim still feels active.
  • It is sworn. An inflated or careless figure is a statement under oath, and policies treat concealment or fraud as grounds to void coverage.
  • Pricing a loss inside 60 days is genuinely hard after a serious fire or flood, and an extension is only worth relying on in writing.
  • Missing it can bar a lawsuit on the policy entirely, because the suit clause conditions the right to sue on having complied with every policy requirement.
  • Requirements are not uniform. Deadlines, content and whether a proof of loss is demanded at all differ by line of business, by policy form and by state.

People Also Asked

Answers to the most frequently asked questions.

What is the difference between a notice of loss and a proof of loss?
The notice of loss is the report that something happened, usually required promptly or immediately after the event. The proof of loss is the later, sworn statement of what the loss consists of and how much is being claimed, with the inventory and estimates behind it. Reporting a claim does not satisfy a proof-of-loss requirement, and on a policy that sets a deadline the time runs from the loss itself.
How long do I have to file a proof of loss?
It depends on the policy and the state, so the answer is in the policy's own "requirements in case of loss" section. Two widely used forms set 60 days after the loss: the Standard Flood Insurance Policy at 44 CFR part 61, and the codified standard fire policy in states that enacted it, such as Maine. Both allow the insurer to extend the time, and the standard fire wording requires that extension to be in writing.
Does the insurance company have to give me the form?
Under the NAIC Unfair Claims Settlement Practices Act, which most states have adopted in some version, failing to provide the forms necessary to present a claim within 15 calendar days of a request, with reasonable explanations of their use, is an unfair claims practice. The Standard Flood Insurance Policy also makes clear that an adjuster's help in completing the form is a courtesy, and the deadline applies whether or not the form or the help arrives.
What happens if I miss the proof of loss deadline?
It depends on the policy wording and on state law, and it can be serious. The standard suit clause bars an action on the policy unless all of the policy's requirements have been complied with, so a missed proof of loss can become a defense to the entire claim. Some states and some courts limit that result where the insurer was not prejudiced, which is a state-by-state question worth putting to a lawyer rather than assuming.
Can I change the amount after I file the proof of loss?
Sometimes. The Standard Flood Insurance Policy expressly permits an amended proof of loss, provided it is filed within 60 days of the date of the loss, and it lists that as one of the options when an insurer rejects a proof of loss in whole or in part. Other forms handle revisions differently, so the route to a revised figure is the policy's own language.

Sources

AdviceOnly maintains high editorial standards to improve the quality and accuracy of our educational content. Content is written with the assistance of artificial intelligence tools following a rigorous quality assurance process, and periodically reviewed by credentialed and experienced human financial advisors. References used include government data, academic papers, interviews with industry experts, and reputable primary sources. You can learn more about our efforts to produce accurate content in our editorial policy.

  1. Code of Federal Regulations. "44 CFR Part 61, Appendix A(1) — Standard Flood Insurance Policy, Dwelling Form."
  2. Maine Revised Statutes. "24-A M.R.S. § 3002 — Standard fire policy provisions."
  3. National Association of Insurance Commissioners. "Unfair Claims Settlement Practices Act (Model 900)."

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