---
title: "Proof of loss — definition"
description: "A formal statement to the insurer describing what was lost. Texas notes the company may require it signed and notarised, and your policy sets the deadline "
canonical: https://biohazardcrown.shop/glossary/proof-of-loss/
language: en-US
risk_tier: R3
last_reviewed: 2026-08-20
---
# Proof of loss

This varies by state

Licensing, waste and compensation rules are set by state. This page reflects the California Department of Insurance's residential property claims guide as of 2026-08-20. Verify with your own policy and your state insurance department before relying on it.

A formal statement to the insurer describing what was lost. Texas notes the company may require it signed and notarised, and your policy sets the deadline for returning it. Ask what that deadline is in writing, early, because it runs while you are dealing with everything else.

## What kind of thing this is

Proof of loss is an insurance concept in this field. This definition comes from a primary government source. Where the wording matters we quote the standard rather than paraphrase it, because paraphrase is where precision leaks out.

## Where you will meet it

You will hear this from an adjuster, and it usually decides the answer rather than describing it. Getting the term right is how you ask a question the adjuster can actually answer.

## How it connects

- **partOf**: homeowners insurance

## Why the wording matters

This site defines terms in under forty words wherever it can, and attaches the practical consequence rather than leaving it implied. A definition that tells you what something is, without telling you what follows from it, is trivia at a moment when nobody has room for trivia.

General information, not legal or insurance advice. Rules and benefits vary by state and change. Verify with the agency listed.

Show every source used on this page

- Tier 2 [ANSI/IICRC S540 Standard for Trauma and Crime Scene Cleanup](https://iicrc.org/) — IICRC, accessed 2026-08-17

- Tier 1 [Bloodborne Pathogens, 29 CFR 1910.1030](https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1030) — Occupational Safety and Health Administration, accessed 2026-08-17

Written by [Biohazard Crown editorial team](https://biohazardcrown.shop/authors/editorial-team/)

Last reviewed: 2026-08-20

## Related questions

- [Full glossary](https://biohazardcrown.shop/glossary/)

- [More on this](https://biohazardcrown.shop/who-pays/insurance/)

- [Who pays for cleanup](https://biohazardcrown.shop/who-pays/)

- [How to check a company](https://biohazardcrown.shop/hiring/how-to-vet-a-company/)