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📋 '''Loss history report''' is a document—commonly known in the industry as a [[Definition:Loss run | loss run]]—that summarizes an insured's prior [[Definition:Claim (insurance) | claims]] experience over a specified period, typically three to five years. [[Definition:Insurance carrier | Insurers]] and [[Definition:Insurance broker | brokers]] request these reports during the [[Definition:Underwriting | underwriting]] and [[Definition:Renewal (insurance) | renewal]] process to evaluate the risk profile of an applicant, verify representations made in the [[Definition:Insurance application | application]], and inform [[Definition:Pricing (insurance) | pricing]] decisions. The report is generated by the insured's current or prior carriers and contains details on each claim, including dates, descriptions, [[Definition:Paid loss | paid amounts]], [[Definition:Reserve (insurance) | outstanding reserves]], and [[Definition:Claim status | claim status]].

⚙️ When an insured or its broker requests a loss history report, the incumbent insurer is generally obligated—or at minimum expected by market convention—to provide one within a reasonable timeframe. In the United States, many states mandate that carriers furnish loss runs within a set number of days upon written request. In the [[Definition:Lloyd's of London | Lloyd's]] market and other international venues, [[Definition:Bordereaux | bordereaux]] data and claims records fulfill a comparable function, although formats and delivery timelines vary. The report typically covers all open and closed claims under each [[Definition:Policy (insurance) | policy]], and a discerning [[Definition:Underwriter | underwriter]] will review not just the headline numbers but also the development trajectory of individual claims, the ratio of open to closed files, and any patterns suggesting systemic issues such as recurring workplace injuries or repeated [[Definition:Property damage | property losses]] at a single location.

🔎 Beyond its immediate underwriting utility, the loss history report serves as a vital communication tool between market participants. It creates an auditable trail of an insured's claims track record, reducing [[Definition:Information asymmetry | information asymmetry]] between the party seeking coverage and the party assuming risk. Favorable loss history can unlock preferred pricing, higher [[Definition:Policy limit | limits]], and broader coverage terms, while adverse experience may result in [[Definition:Exclusion (insurance) | exclusions]], higher [[Definition:Deductible | deductibles]], or outright [[Definition:Declination | declination]]. For large [[Definition:Commercial insurance | commercial]] and [[Definition:Specialty insurance | specialty]] risks, loss history reports often become central exhibits in [[Definition:Submission (insurance) | submission]] packages circulated to multiple markets. The quality and completeness of these reports—how promptly they are delivered, how accurately they reflect incurred amounts, and whether they capture [[Definition:Subrogation | subrogation]] recoveries—can materially influence the competitiveness of the terms an insured receives.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Loss run]]
* [[Definition:Experience modification factor]]
* [[Definition:Underwriting]]
* [[Definition:Bordereaux]]
* [[Definition:Claims management]]
* [[Definition:Submission (insurance)]]
{{Div col end}}

Definition:Loss history report - Revision history

PlumBot: Bot: Creating new article from JSON