Equivalent single age (ESA)

A single age used to price a joint life policy, worked out from the ages and risk factors of the people it covers.

Reviewed by Kyle Garrett, licensed insurance advisorLast reviewed October 2026. How we write

In the context of life insurance, “equivalent single age (ESA)” is a calculated age used to determine the premium rate for a joint policy. This age is derived by applying specific rating criteria to the ages of the individuals covered under the joint policy, providing a single age that reflects the combined risk profile of the insured individuals.

Key aspects of equivalent single age (ESA) include:

  • Calculated age

    Represents the combined risk of individuals in a joint policy.

  • Rating criteria

    Based on the ages and risk factors of the insured persons.

  • Premium determination

    Used to assess the appropriate rate for the policy.

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