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📜 '''Long-duration contracts''' are insurance contracts whose coverage period extends over a significant span — typically many years or even decades — and which often cannot be unilaterally cancelled by the insurer during the coverage period. In insurance accounting and regulation, the distinction between long-duration and short-duration contracts is fundamental because it determines how [[Definition:Premium|premiums]] are recognized, how [[Definition:Loss reserves|reserves]] are calculated, and how profits emerge over time. [[Definition:Life insurance|Life insurance]] policies, [[Definition:Annuity|annuities]], long-term [[Definition:Disability insurance|disability coverage]], and certain [[Definition:Health insurance|health insurance]] products are classic examples, though the concept also encompasses long-tail [[Definition:Liability insurance|liability lines]] where claims may take years to develop and settle.

⚙️ Under US [[Definition:Generally Accepted Accounting Principles (GAAP)|GAAP]], the classification of a contract as long-duration has historically triggered specific accounting treatments — including the use of net-level premium reserving methods and the recognition of a [[Definition:Deferred acquisition cost|deferred acquisition cost]] asset amortized over the contract's life. The Accounting Standards Update 2018-12 (often called LDTI, for Long-Duration Targeted Improvements) introduced significant reforms for US insurers, requiring updated assumptions for measuring liabilities, a new presentation for market risk benefits, and enhanced [[Definition:Disclosure|disclosures]] — changes that demanded multi-year implementation programs at major US life insurers. Under [[Definition:International Financial Reporting Standard 17 (IFRS 17)|IFRS 17]], which applies across much of the rest of the world, the measurement model for long-duration contracts involves the [[Definition:Building block approach|building block approach]] or the [[Definition:Variable fee approach|variable fee approach]] for contracts with direct participation features, both of which require current estimates of future cash flows, explicit risk adjustments, and a [[Definition:Contractual service margin|contractual service margin]] that defers unearned profit and releases it as services are provided.

🔍 The distinction matters profoundly for how insurers report performance, manage capital, and communicate with investors. Long-duration contracts expose insurers to risks that unfold over extended time horizons — including [[Definition:Longevity risk|longevity risk]], persistent low [[Definition:Interest rate risk|interest rates]], [[Definition:Lapse risk|lapse behavior]] deviations, and [[Definition:Morbidity|morbidity]] trend shifts — making accurate long-term assumption setting and regular assumption reviews critical to financial integrity. Because profit recognition on these contracts is spread over many years, reported earnings can be highly sensitive to changes in discount rates, mortality tables, and policyholder behavior assumptions, which is why both LDTI and IFRS 17 emphasize transparency around assumption changes. For regulators in jurisdictions from the United States to Japan to the [[Definition:Solvency II|Solvency II]] zone, the prudent reserving and capital treatment of long-duration obligations remains a central supervisory concern, as inadequate provisions can build up silently for years before manifesting as solvency problems.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:International Financial Reporting Standard 17 (IFRS 17)]]
* [[Definition:Contractual service margin]]
* [[Definition:Life insurance]]
* [[Definition:Annuity]]
* [[Definition:Deferred acquisition cost]]
* [[Definition:Longevity risk]]
{{Div col end}}

Definition:Long-duration contracts - Revision history

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