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🔒 '''Event limit''' is the maximum amount a [[Definition:Reinsurance | reinsurer]] or [[Definition:Insurance carrier | insurer]] will pay for all [[Definition:Claim | claims]] arising from a single defined event, such as a hurricane, earthquake, or terrorist attack. Unlike a [[Definition:Per-risk limit | per-risk limit]], which caps exposure on an individual policy or risk basis, the event limit aggregates all losses traceable to one occurrence and places a ceiling on the total payout. This concept is fundamental across [[Definition:Property catastrophe reinsurance | property catastrophe reinsurance]], [[Definition:Excess of loss treaty (XoL) | excess of loss treaties]], and large commercial [[Definition:Insurance policy | insurance policies]] in virtually every major market.

⚙️ The mechanics of an event limit depend heavily on how the triggering "event" is defined in the contract. In [[Definition:Catastrophe bond | catastrophe bond]] structures and reinsurance treaties, the contract typically includes an [[Definition:Hours clause | hours clause]] or a specific event definition that delineates which losses fall within a single occurrence window. For instance, a 72-hour hours clause might aggregate all wind-related losses within that timeframe as one event. Once the total incurred losses attributable to that event reach the stated limit, the reinsurer's obligation ceases, and any excess reverts to the [[Definition:Cedent | cedent]]. Regulators across jurisdictions — from the [[Definition:National Association of Insurance Commissioners (NAIC) | NAIC]] in the United States to [[Definition:Solvency II | Solvency II]] supervisors in Europe — expect insurers and reinsurers to model their event limits rigorously using [[Definition:Catastrophe model | catastrophe models]] and to hold adequate [[Definition:Capital adequacy | capital]] against potential breaches.

📊 The significance of event limits extends well beyond contract mechanics — they shape how the entire industry manages [[Definition:Accumulation risk | accumulation risk]]. Without clearly defined event limits, a single catastrophe could produce unbounded liabilities capable of destabilizing a reinsurer's balance sheet. The 2011 Tōhoku earthquake and tsunami in Japan, for example, prompted widespread reassessment of event limit adequacy across the Asia-Pacific reinsurance market. For [[Definition:Underwriter | underwriters]], setting the right event limit involves balancing competitive pricing with prudent [[Definition:Risk management | risk management]], while for [[Definition:Broker | brokers]] and cedents, understanding how event limits interact with [[Definition:Reinstatement | reinstatement]] provisions determines how much protection actually survives after a large loss.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Aggregate limit]]
* [[Definition:Hours clause]]
* [[Definition:Catastrophe model]]
* [[Definition:Excess of loss treaty (XoL)]]
* [[Definition:Accumulation risk]]
* [[Definition:Reinstatement]]
{{Div col end}}

Definition:Event limit - Revision history

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