CLAIMS & POLICY MECHANICS
Sum insured definition
Sum insured is the maximum amount which an insurer will pay out for an insured item or risk.
In practice, this means the specified maximum sum for which the insured is covered under an insurance policy, i.e. the maximum amount that the insured can claim from the insurer. The sum insured is usually the same amount as the value at risk and typically forms the basis of a claim. This term gives insurers, brokers, reinsurers and risk managers a common way to discuss the concept when reviewing policies, claims, regulation or market data.
This term is especially useful in property insurance, commercial insurance and claims assessment. It helps determine how much the insurer may pay and how much risk remains with the insured. It also helps users compare how insurance is structured, regulated, priced or claimed across different markets.
Sum insured is closely related to limit of liability, underinsurance, average and property insurance. Linking these concepts together helps build a clearer glossary structure and gives readers a stronger understanding of how individual insurance terms connect within wider international insurance practice.
At a glance
- Used in
- Property insurance, commercial insurance and claims assessment.
- Purpose
- Helps determine how much the insurer may pay and how much risk remains with the insured.
- Important because
- Small differences in policy limits, values and retained amounts can materially affect claim outcomes.
- Related terms
- limit of liability, underinsurance, average and property insurance.
Example of sum insured in insurance
A building is insured for GBP 2 million. That sum insured is the value stated in the policy and may affect the premium, claim settlement and underinsurance calculation.