Health Insurance
Fully Insured Plan
In a fully insured plan, the insurance carrier guarantees payment of covered claims in exchange for a fixed monthly premium, transferring all financial risk from the employer.
Last reviewed: May 2026 · Editorial methodology
Definition
A fully insured group health plan is the traditional model of employer-sponsored health insurance where the employer pays a set monthly premium per enrolled employee (and sometimes dependents) to an insurance carrier. In exchange, the carrier assumes the financial risk for all covered medical claims, regardless of actual utilization. Premiums are fixed for the plan year at renewal and do not fluctuate based on actual claims experience within that year, providing budget certainty for the employer. Fully insured plans are subject to state insurance mandates and regulations in addition to federal ERISA requirements, which means the benefits package may include state-mandated coverages such as infertility treatment, autism spectrum disorder therapy, or chiropractic care depending on the state. Because the insurance carrier retains underwriting profit and bears all risk, fully insured plans typically cost more in aggregate than self-funded plans for healthy employee populations. Fully insured plans are most common among small and mid-size employers that cannot absorb the volatility of direct claim funding.
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Cover Forge USA Editorial Team
Editorial Lead
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed 2026-06-14
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