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📊 '''Policy aggregate limit''' is the maximum total amount an [[Definition:Insurance carrier | insurer]] will pay for all covered [[Definition:Claim | claims]] arising under a single policy during a specified policy period, regardless of how many individual losses occur. While a [[Definition:Per-occurrence limit | per-occurrence limit]] caps the payout for any single event, the aggregate limit functions as an overall ceiling — once cumulative claim payments reach that threshold, the insurer's obligation under the policy is exhausted. Aggregate limits are a standard feature in [[Definition:General liability insurance | general liability]], [[Definition:Professional liability insurance | professional liability]], [[Definition:Product liability insurance | product liability]], and [[Definition:Cyber insurance | cyber insurance]] policies worldwide, and they play a critical role in how insurers manage their total exposure on any given risk.

⚙️ When a policy incurs multiple claims during its term, each paid claim and any associated [[Definition:Loss adjustment expense (LAE) | loss adjustment expenses]] (depending on policy wording) erode the remaining aggregate limit. For example, a commercial liability policy might carry a per-occurrence limit of $1 million and a policy aggregate limit of $5 million: the insurer will pay up to $1 million per incident but no more than $5 million in total across all incidents in the policy year. Once the aggregate is depleted, the [[Definition:Policyholder | policyholder]] bears the cost of further losses unless an [[Definition:Aggregate extension clause | aggregate reinstatement]] or additional coverage is purchased. Insurers and [[Definition:Actuarial science | actuaries]] model aggregate exposure carefully during [[Definition:Underwriting | underwriting]] and [[Definition:Pricing | pricing]], using frequency and severity distributions to estimate the probability of aggregate exhaustion. In [[Definition:Reinsurance | reinsurance]], aggregate limits are equally important — [[Definition:Excess of loss reinsurance | excess of loss]] treaties and [[Definition:Stop-loss reinsurance | stop-loss covers]] often hinge on aggregate thresholds that determine when the reinsurer's obligation begins and ends.

💡 From a risk management perspective, aggregate limits are one of the most powerful levers insurers use to contain portfolio-level exposure, especially in lines prone to loss accumulation such as [[Definition:Product liability insurance | product liability]] or [[Definition:Errors and omissions insurance (E&O) | errors and omissions]]. For policyholders, understanding the aggregate limit is essential — a business that faces high-frequency claims may exhaust its aggregate well before the policy period ends, leaving it unprotected precisely when it can least afford to be. Brokers across markets from the US to the UK and Asia-Pacific routinely advise clients to evaluate whether their aggregate limits are adequate relative to their claims history and risk profile, and whether purchasing an [[Definition:Umbrella insurance | umbrella]] or [[Definition:Excess insurance | excess]] layer makes sense. Regulators and rating agencies also scrutinize aggregate exposure at the portfolio and enterprise level, as excessive aggregate commitments without adequate [[Definition:Reserves | reserves]] or reinsurance protection can threaten an insurer's solvency.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Per-occurrence limit]]
* [[Definition:Excess insurance]]
* [[Definition:Umbrella insurance]]
* [[Definition:Reinsurance]]
* [[Definition:Loss adjustment expense (LAE)]]
* [[Definition:Stop-loss reinsurance]]
{{Div col end}}

Definition:Policy aggregate limit - Revision history

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