What Is a Proof of Loss and How Do You Fill One Out?
Key takeaways
- •A proof of loss is a sworn statement, notarized, with legal weight
- •In New York it is generally due within 60 days of the insurer's request
- •Never file it blank or with the carrier's low figure as your claimed amount
- •Document hidden damage before you quantify the claim
- •A supplemental proof of loss covers damage discovered during repairs
What a Proof of Loss Actually Is
A proof of loss is a signed, sworn document in which you state, under oath, what happened, when it happened, what was damaged, and how much you are claiming. It is not a form letter. It is the formal claim you are making against your policy, and the carrier will hold you to it.
The 60-Day Clock
Under New York''s standard policy language, once the insurer requests a sworn proof of loss you generally have 60 days to return it. This is one of the most common ways a valid Long Island claim gets denied - not because the damage was not covered, but because the paperwork was never returned.
If you receive a proof of loss form, treat it as a deadline, not a formality.
What Goes On It
- Policy number, date of loss, and cause of loss
- A description of the damaged property and your interest in it
- The actual cash value of the loss
- The amount you are claiming
- Other insurance covering the same property
- Any mortgage or lienholder
- Your signature, sworn before a notary
Where People Go Wrong
Filing it blank or "TBD." A proof of loss with no number invites the carrier to supply its own.
Guessing low. If you sign a sworn statement claiming $18,000 because that is the carrier''s estimate, you have made a sworn claim for $18,000 - even if the real cost is $60,000.
Filing before the damage is fully documented. Hidden water, smoke inside walls, and code upgrade requirements are frequently unknown on day 10. Document first, then quantify.
Ignoring the sworn part. It requires notarization and it carries legal weight. Inflating it is fraud; understating it costs you money.
Supplemental Proof of Loss
If additional damage is discovered during repairs - wet framing, contaminated ductwork, code-required upgrades - a supplemental proof of loss can be submitted for the additional amount. That is a normal part of a properly handled claim, not an admission of a mistake.
Do Not Sign It Alone
Preparing the proof of loss is one of the core things a public adjuster does: build the line-item scope, price it correctly, inventory the contents, then put a defensible number on the document.
If you have a proof of loss request on your kitchen table right now, call 516-410-0164 before you sign it.
For official guidance on property insurance and claim rights, visit the New York State Department of Financial Services.
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