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🔒 '''Runoff insurance''' refers to the management and resolution of insurance [[Definition:Policy | policy]] obligations that remain after an [[Definition:Insurance carrier | insurer]] or a specific [[Definition:Line of business | line of business]] has stopped writing new [[Definition:Premium | premiums]]. When an insurer exits a market, discontinues a product, or is acquired and its legacy portfolio is segregated, the existing policies do not simply vanish — open [[Definition:Claim | claims]] must still be adjusted, [[Definition:Loss reserving | reserves]] must be maintained, and regulatory obligations continue until every liability is settled or formally transferred. The resulting "runoff" book can persist for years or even decades, particularly in [[Definition:Long-tail liability | long-tail]] lines such as [[Definition:Asbestos liability | asbestos]], [[Definition:Environmental liability | environmental liability]], [[Definition:Professional liability insurance | professional liability]], and [[Definition:Workers' compensation insurance | workers' compensation]], where claims may emerge long after the original coverage period has ended.

⚙️ Specialized [[Definition:Runoff company | runoff companies]] and legacy acquirers — firms like Enstar Group, [[Definition:Berkshire Hathaway | Berkshire Hathaway's]] retroactive reinsurance operations, Catalina Holdings, and RiverStone — have built entire business models around purchasing or managing these discontinued portfolios. A typical transaction involves a [[Definition:Loss portfolio transfer (LPT) | loss portfolio transfer]], an [[Definition:Adverse development cover (ADC) | adverse development cover]], or a full legal-entity acquisition, through which the runoff specialist assumes responsibility for the remaining [[Definition:Claim | claims]] in exchange for a negotiated price that reflects the [[Definition:Reserve | reserves]] plus a risk margin. In the [[Definition:Lloyd's of London | Lloyd's]] market, legacy liabilities may be resolved through [[Definition:Reinsurance to close (RITC) | reinsurance to close]] transactions, where one [[Definition:Lloyd's syndicate | syndicate]] year's liabilities are transferred into a successor year or into a purpose-built legacy vehicle. Regulatory frameworks vary by jurisdiction: the UK's Part VII transfer regime under the Financial Services and Markets Act allows court-sanctioned portfolio transfers, while in the United States, [[Definition:Insurance division | state insurance departments]] oversee runoff through supervision orders, and schemes of arrangement or [[Definition:Insurance business transfer (IBT) | insurance business transfer]] laws are emerging in states like Oklahoma and Rhode Island. In Europe, legacy platforms have expanded under [[Definition:Solvency II | Solvency II]], which imposes ongoing [[Definition:Capital adequacy | capital]] and reporting requirements on runoff carriers just as it does on active writers.

💡 Far from being a quiet corner of the industry, runoff has become one of the most dynamic segments of the global insurance market. For the original insurer, transferring a legacy book frees up [[Definition:Capital | capital]] and management attention for active [[Definition:Underwriting | underwriting]] operations, while removing the uncertainty of long-dated liabilities from its [[Definition:Balance sheet | balance sheet]]. For the acquirer, disciplined [[Definition:Claims management | claims management]], favorable [[Definition:Investment income | investment income]] on held reserves, and expertise in negotiating [[Definition:Commutation | commutations]] with [[Definition:Reinsurance | reinsurers]] can turn a runoff portfolio into a profitable venture. The market also plays a systemic role: by providing a structured exit pathway for impaired or non-core liabilities — including those arising from events like the [[Definition:September 11 attacks | September 11 attacks]] or widespread [[Definition:Asbestos liability | asbestos]] exposure — runoff specialists help maintain confidence in the insurance promise that valid claims will ultimately be paid, even when the original underwriter no longer exists in its prior form.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Loss portfolio transfer (LPT)]]
* [[Definition:Adverse development cover (ADC)]]
* [[Definition:Reinsurance to close (RITC)]]
* [[Definition:Commutation]]
* [[Definition:Long-tail liability]]
* [[Definition:Legacy insurance]]
{{Div col end}}

Definition:Runoff insurance - Revision history

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