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📊 '''Paid-to-incurred ratio''' is a financial metric used in insurance to measure the proportion of [[Definition:Incurred losses | incurred losses]] that have actually been paid out in cash at a given point in time. Expressed as a percentage, it compares [[Definition:Paid losses | paid losses]] to total incurred losses — which include both payments already made and outstanding [[Definition:Loss reserve | loss reserves]] still on the books. A low ratio signals that a significant share of projected losses remains unpaid, while a ratio approaching 100% indicates that nearly all estimated liabilities have been settled.

⚙️ To calculate the ratio, an [[Definition:Insurance carrier | insurer]] divides cumulative paid losses by cumulative incurred losses for a given [[Definition:Accident year | accident year]], [[Definition:Policy year | policy year]], or reporting period. Because incurred losses incorporate the [[Definition:Claims adjuster | claims team's]] best estimate of future payments through [[Definition:Case reserve | case reserves]] and [[Definition:Incurred but not reported (IBNR) | IBNR]] provisions, the paid-to-incurred ratio naturally starts low for immature loss years and climbs over time as [[Definition:Claims settlement | claims settle]]. Analysts track how the ratio develops across successive evaluation dates, comparing it to historical patterns to spot anomalies — a ratio developing faster than expected may suggest inadequate reserving, while unusually slow development could point to delayed [[Definition:Claims handling | claims handling]] or [[Definition:Litigation | litigation]] bottlenecks.

💡 [[Definition:Actuary | Actuaries]], [[Definition:Reinsurance | reinsurance]] analysts, and financial auditors rely on this ratio as a quick diagnostic of reserve adequacy and [[Definition:Loss development | loss development]] health. When reviewing a [[Definition:Book of business | book of business]] during an [[Definition:Underwriting | underwriting]] renewal or a [[Definition:Mergers and acquisitions (M&A) | portfolio acquisition]], a sharply divergent paid-to-incurred ratio compared to industry benchmarks warrants deeper investigation into reserving assumptions or [[Definition:Claims management | claims management]] practices. It also features prominently in [[Definition:Reinsurance treaty | reinsurance treaty]] commutation discussions, where the maturity of losses directly influences the economics of a buyout.

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Loss reserve]]
* [[Definition:Loss development]]
* [[Definition:Incurred but not reported (IBNR)]]
* [[Definition:Paid losses]]
* [[Definition:Reserve adequacy]]
* [[Definition:Accident year]]
{{Div col end}}

Definition:Paid-to-incurred ratio - Revision history

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