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🏥 '''Actuarial value''' is a measure, expressed as a percentage, of the share of total average healthcare costs that a [[Definition:Health insurance | health insurance]] plan is expected to cover for a standard population. A plan with an actuarial value of 70%, for instance, is designed so that the insurer pays roughly 70% of covered medical expenses on average, while [[Definition:Policyholder | policyholders]] bear the remaining 30% through [[Definition:Deductible | deductibles]], [[Definition:Copayment | copayments]], and [[Definition:Coinsurance | coinsurance]]. The concept became a central regulatory tool under the [[Definition:Affordable Care Act (ACA) | Affordable Care Act]], which uses actuarial value to define the four standardized [[Definition:Metal tier | metal tiers]] — Bronze (60%), Silver (70%), Gold (80%), and Platinum (90%) — in the individual and small-group markets.

📐 Calculating actuarial value requires [[Definition:Actuary | actuaries]] to model a plan's [[Definition:Cost-sharing | cost-sharing]] design against a standardized claims dataset representing the expected utilization of a broad enrolled population. The federal [[Definition:Actuarial value calculator | actuarial value calculator]], maintained by the [[Definition:Department of Health and Human Services (HHS) | Department of Health and Human Services]], provides the approved methodology, though carriers may use actuarial justification to account for plan features the calculator cannot fully capture. Critically, the calculation reflects average cost-sharing across all enrollees — any individual member's actual out-of-pocket experience will vary depending on their health status and utilization patterns. Insurers must demonstrate that their plan designs fall within a permissible [[Definition:De minimis variation | de minimis variation]] of the target metal-tier percentage.

💡 For health insurers and [[Definition:Health insurance marketplace | marketplace]] participants, actuarial value is far more than a technical metric — it shapes product strategy, competitive positioning, and regulatory compliance. Carriers calibrate [[Definition:Benefit design | benefit designs]] — adjusting deductibles, out-of-pocket maximums, and copay structures — to land precisely within the required actuarial value range for each tier. Missteps can result in plan decertification from the marketplace. Actuarial value also anchors the [[Definition:Cost-sharing reduction (CSR) | cost-sharing reduction]] subsidy program, which increases the effective actuarial value of Silver plans for lower-income enrollees, making accurate calculation essential for both [[Definition:Premium | pricing]] and [[Definition:Risk adjustment | risk adjustment]] processes.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Metal tier]]
* [[Definition:Cost-sharing reduction (CSR)]]
* [[Definition:Affordable Care Act (ACA)]]
* [[Definition:Benefit design]]
* [[Definition:Risk adjustment]]
* [[Definition:Essential health benefit (EHB)]]
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Definition:Actuarial value - Revision history

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