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📋 '''Cost of insurance (COI)''' is the specific periodic charge deducted from a [[Definition:Cash value | cash-value]] [[Definition:Life insurance | life insurance]] policy to cover the insurer's [[Definition:Mortality risk | mortality risk]] exposure. Often referenced by its abbreviation COI, the term appears most frequently in the context of [[Definition:Universal life insurance | universal life]], [[Definition:Indexed universal life insurance | indexed universal life]], and [[Definition:Variable universal life insurance | variable universal life]] policies, where the charge is transparently separated from other policy components such as [[Definition:Expense charge | expense loads]], [[Definition:Surrender charge | surrender charges]], and the credited [[Definition:Interest rate | interest]] or index-linked gains. By isolating the COI, these products give [[Definition:Policyholder | policyholders]] and their advisors a clear line of sight into what the pure insurance protection actually costs each month.

🔍 Each policy period, the [[Definition:Insurance carrier | carrier]] calculates the COI by multiplying the applicable cost-of-insurance rate — expressed per thousand dollars of coverage — by the policy's [[Definition:Net amount at risk | net amount at risk]]. The rate itself is determined through [[Definition:Actuarial analysis | actuarial]] assessment of the insured's attained age, risk class, and the policy's duration, subject to the maximum guaranteed rates specified in the contract. In practice, many carriers charge current COI rates below the guaranteed ceiling, but they retain the contractual right to raise rates up to that maximum if [[Definition:Mortality experience | mortality experience]], [[Definition:Lapse rate | lapse rates]], or [[Definition:Investment income | investment returns]] deteriorate. This optionality makes the COI a lever the insurer can pull to manage profitability on in-force blocks of business.

⚠️ The COI has become a flashpoint in insurance litigation and [[Definition:Regulatory compliance | regulatory]] oversight, particularly when carriers have raised current COI rates on older blocks of [[Definition:Universal life insurance | universal life]] policies. Policyholders who purchased coverage decades ago — sometimes relying on illustrated assumptions that never materialized — can face sharply higher charges that accelerate cash-value depletion and threaten [[Definition:Policy lapse | policy lapse]]. Several high-profile class-action lawsuits have alleged that COI increases were driven not by worsening mortality but by the insurer's desire to recoup losses from low [[Definition:Interest rate | interest rates]], raising questions about the contractual basis for such adjustments. For [[Definition:Underwriter | underwriters]], product designers, and compliance teams, the COI mechanism demands careful calibration that balances long-term [[Definition:Solvency | solvency]] with fair treatment of existing policyholders.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Net amount at risk]]
* [[Definition:Universal life insurance]]
* [[Definition:Cash value]]
* [[Definition:Mortality table]]
* [[Definition:Policy lapse]]
* [[Definition:Surrender charge]]
{{Div col end}}

Definition:Cost of insurance (COI) - Revision history

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