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⏳ '''Policy duration''' denotes the length of time an [[Definition:Insurance policy | insurance policy]] has been continuously in force since its original [[Definition:Policy effective date | effective date]] or, in some contexts, the contractual period over which the policy provides [[Definition:Insurance coverage | coverage]]. The term carries dual significance in the insurance industry: in [[Definition:Life insurance | life insurance]] and long-duration contracts, duration typically refers to how many years have elapsed since issue — a critical variable in [[Definition:Actuarial science | actuarial]] analysis — while in [[Definition:Property and casualty insurance | property and casualty]] insurance, it more commonly describes the defined term of coverage (e.g., a twelve-month or multi-year [[Definition:Policy period | policy period]]).

📐 In life and health lines, policy duration drives a range of contractual and actuarial mechanics. [[Definition:Surrender charge | Surrender charges]] typically decline as duration increases, [[Definition:Cash value | cash values]] accumulate according to duration-based schedules, and [[Definition:Cost of insurance (COI) | cost-of-insurance]] charges may be recalculated at each [[Definition:Policy anniversary | policy anniversary]]. Actuaries analyze [[Definition:Lapse rate | lapse rates]], [[Definition:Mortality rate | mortality experience]], and [[Definition:Persistency | persistency]] as functions of policy duration, since policyholder behavior tends to vary predictably over a contract's life — lapse rates, for instance, are typically highest in early durations and stabilize over time. Under [[Definition:IFRS 17 | IFRS 17]], the duration of insurance contracts influences the measurement model applied and the pattern of profit recognition through the [[Definition:Contractual service margin (CSM) | contractual service margin]], while [[Definition:US GAAP | US GAAP]] distinguishes between short-duration and long-duration contracts with fundamentally different accounting treatments for each.

🎯 Understanding duration dynamics is essential for managing profitability across the policy lifecycle. Carriers that experience heavy attrition at short durations often fail to recoup their [[Definition:Deferred acquisition cost (DAC) | acquisition costs]], eroding the economics of new business production. In [[Definition:Property and casualty insurance | P&C]] lines, the choice of policy duration — annual versus multi-year terms — affects [[Definition:Earned premium | premium earning]] patterns, [[Definition:Reinsurance | reinsurance]] structuring, and the insurer's ability to reprice in response to changing risk conditions. [[Definition:Regulators | Regulators]] in certain markets impose constraints on maximum policy duration or require specific disclosure when long-term commitments are involved, recognizing that extended durations can lock consumers into terms that may become unfavorable over time.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Policy period]]
* [[Definition:Lapse rate]]
* [[Definition:Policy anniversary]]
* [[Definition:Persistency]]
* [[Definition:Earned premium]]
* [[Definition:Long-duration contract]]
{{Div col end}}

Definition:Policy duration - Revision history

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