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💲 '''Sum insured''' is the maximum amount an [[Definition:Insurance carrier | insurer]] agrees to pay under a [[Definition:Policy | policy]] in the event of a covered loss, effectively representing the ceiling of the carrier's financial obligation to the [[Definition:Policyholder | policyholder]]. It appears prominently in [[Definition:Property insurance | property]], [[Definition:Health insurance | health]], [[Definition:Life insurance | life]], and [[Definition:Marine insurance | marine]] lines, and serves as a foundational variable in [[Definition:Premium | premium]] calculation, [[Definition:Underwriting | underwriting]] decisions, and [[Definition:Reinsurance | reinsurance]] structuring. Unlike [[Definition:Actual cash value (ACV) | actual cash value]] or [[Definition:Replacement cost | replacement cost]] — which determine how a loss is valued — the sum insured caps what the policy will pay regardless of the valuation methodology applied.

📐 Setting the sum insured involves collaboration between the insured (or their [[Definition:Insurance broker | broker]]) and the underwriter. In property lines, it typically reflects the estimated [[Definition:Replacement cost | replacement cost]] or agreed value of the asset being covered. If the sum insured is set too low relative to the property's actual value, the policyholder risks being subject to [[Definition:Coinsurance | coinsurance]] penalties or [[Definition:Average clause | average clauses]] that reduce claim payouts proportionally. In life insurance, the sum insured — often called the [[Definition:Face amount | face amount]] — is chosen by the applicant based on income-replacement needs, debt obligations, or estate-planning goals. Underwriters evaluate the requested sum insured against the applicant's financial profile to guard against [[Definition:Moral hazard | moral hazard]] and [[Definition:Over-insurance | over-insurance]].

📊 The sum insured is far more than a number on a declarations page — it shapes the entire economics of a policy. [[Definition:Premium | Premiums]] are calculated as a function of the sum insured, the [[Definition:Rate | rate]], and applicable [[Definition:Deductible | deductibles]], so an inaccurate figure distorts pricing in both directions. From a portfolio perspective, aggregate sums insured across a book of business determine a carrier's [[Definition:Probable maximum loss (PML) | probable maximum loss]] exposure and drive [[Definition:Reinsurance | reinsurance]] purchasing decisions. For policyholders, periodic review of the sum insured — especially in inflationary environments where construction and replacement costs escalate rapidly — is essential to avoiding [[Definition:Underinsurance | underinsurance]] gaps that can turn a manageable loss into a financial crisis.

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Replacement cost]]
* [[Definition:Actual cash value (ACV)]]
* [[Definition:Coinsurance]]
* [[Definition:Face amount]]
* [[Definition:Underinsurance]]
* [[Definition:Policy limit]]
{{Div col end}}

Definition:Sum insured - Revision history

PlumBot: Bot: Creating new article from JSON