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📋 '''Sub-limit''' is a cap within an [[Definition:Insurance policy | insurance policy]] that restricts the maximum amount payable for a specific type of loss, [[Definition:Peril | peril]], or category of [[Definition:Coverage | coverage]] to an amount lower than the policy's overall [[Definition:Policy limit | limit of liability]]. For instance, a [[Definition:Commercial property insurance | commercial property policy]] with a $10 million blanket limit might impose a $2 million sub-limit for [[Definition:Flood insurance | flood]] damage and a $1 million sub-limit for [[Definition:Earthquake insurance | earthquake]] — meaning that even though the full policy limit applies to most covered perils, the insurer's exposure to those specific hazards is capped at the sub-limit amount. Sub-limits are a fundamental tool that [[Definition:Underwriting | underwriters]] use to manage accumulation risk and price policies in a way that reflects the varying loss potential of different perils.

⚙️ When structuring a policy, the [[Definition:Underwriting | underwriter]] evaluates which perils or coverages warrant a sub-limit based on factors like historical [[Definition:Loss experience | loss experience]], [[Definition:Catastrophe modeling | catastrophe model]] outputs, geographic exposure, and the insurer's [[Definition:Risk appetite | risk appetite]]. Sub-limits frequently appear for perils where losses can be sudden and severe but where the [[Definition:Insurance carrier | carrier]] wants to offer some coverage without bearing the same exposure as for the primary covered perils. Common examples beyond flood and earthquake include [[Definition:Named storm | named storm]], [[Definition:Business interruption insurance | business interruption]], [[Definition:Cyber insurance | cyber]], mold, and terrorism. The sub-limit applies per occurrence or in the aggregate, depending on the policy terms, and it operates alongside the [[Definition:Deductible | deductible]] or [[Definition:Self-insured retention (SIR) | self-insured retention]] that the [[Definition:Policyholder | insured]] must satisfy before the coverage responds.

🧩 From the insured's perspective, sub-limits represent a potential coverage gap that must be understood and addressed during the placement process. A [[Definition:Broker | broker]] advising a client will scrutinize sub-limits carefully, negotiating higher sub-limits where possible or recommending [[Definition:Difference in conditions (DIC) insurance | difference-in-conditions]] or standalone policies to fill the gap. For insurers, sub-limits are essential to portfolio management — without them, a single widespread peril like a major hurricane with associated [[Definition:Storm surge | storm surge]] could trigger policy limits across an entire book, producing aggregate losses far beyond what the [[Definition:Reinsurance program | reinsurance program]] was designed to handle. Regulatory filings and [[Definition:Rating agency | rating agency]] assessments scrutinize how well an insurer's sub-limit strategy aligns with its [[Definition:Catastrophe risk | catastrophe risk]] profile, making thoughtful sub-limit design a matter of both [[Definition:Pricing | pricing]] precision and financial resilience.

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Policy limit]]
* [[Definition:Deductible]]
* [[Definition:Aggregate limit]]
* [[Definition:Difference in conditions (DIC) insurance]]
* [[Definition:Coverage]]
* [[Definition:Named peril]]
{{Div col end}}

Definition:Sub-limit - Revision history

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