LetterAgent

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Status: LetterAgent is currently in private testing ahead of public launch. Everything on this page describes the service as it works today.

Home > Guides > Proof of loss by mail

What is a proof of loss, and do I have to mail it for an insurance claim?

A proof of loss is a signed, sworn statement you give your insurer describing what was damaged or stolen, when it happened, and what it was worth. Many policies require it in writing within 60 days of the insurer's request, and missing that deadline can jeopardize the claim. Certified mail gives you dated proof you sent it.

Is it the same as filing the claim?

No. Filing the claim is the phone call or online form that opens the file. The proof of loss comes later: it is the formal, sworn inventory that locks in your version of the loss, with values attached. Insurers usually send you their own proof-of-loss form after you file, and they expect it back by the deadline in your policy. Think of the claim as the announcement and the proof of loss as the evidence package.

What the form typically asksHow to answer it
Date, time, and cause of the lossBe specific: "water heater ruptured on March 3" beats "water damage"
Item-by-item list of damaged propertyBrand, model, age, and purchase price where you know them
The amount you are claimingYour good-faith estimate; the adjuster will negotiate it anyway
Other insurance covering the same lossDisclose it: hiding coverage is a fast way to void the claim
Signature under oathThis is a sworn statement, not a formality; inaccuracies here can be treated as fraud

Do I really have to mail it, or can I email it?

Follow the policy's wording. Many policies say the proof of loss must be "in writing" without specifying a channel, in which case email with a read receipt or the insurer's own upload portal is usually accepted. But some policies, and some adjusters, want a signed original by mail. When in doubt, mail it: a certified envelope with the signed form inside satisfies every version of the requirement, and the mailing receipt proves you met the deadline. Belt and suspenders works too: upload the portal copy, then mail the signed original the same day.

What happens if I miss the deadline?

It depends on your state's insurance rules. In some states, missing the proof-of-loss deadline gives the insurer grounds to deny the claim outright. In others, the insurer has to show it was actually harmed by the delay before it can deny. Either way, a late or missing proof of loss turns a straightforward claim into a fight you did not need. The 60-day window usually runs from the insurer's written request, not from the loss date: read the request letter and mark the calendar the day it arrives.

How detailed should the inventory be?

Detailed enough that an adjuster who has never seen your house can price it. Photographs help enormously: take pictures of every damaged item and every room before cleanup, with timestamps on. For electronics and appliances, the model and serial numbers from your purchase records beat guesses. For clothing and household goods, room-by-room lists with approximate purchase dates work. Keep every receipt for emergency repairs and temporary housing: those are claimable expenses too, and they are the easiest part of a claim to document cleanly.

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