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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Tip

Glossary definitions are educational. Always check your own policy language — insurers can define common terms differently from one another. When in doubt, request a written explanation from your agent.

Related terms

ERISAERISA sets minimum standards for employer-sponsored health plans and generally shields self-funded plans from state insurance mandates.Self-Funded PlanIn a self-funded plan, the employer functions as the insurer — paying claims from its own funds — while typically contracting with a TPA or insurer for administrative services.COBRACOBRA continuation coverage preserves your existing group health plan after a qualifying event but requires you to pay the full premium — both employee and employer shares — plus an administrative fee.NetworkA plan's network determines which providers you can see at the lowest cost-sharing, and using out-of-network providers can dramatically increase your expenses.
Source: Cover Forge USA editorial team|Last verified: May 2026|Methodology
Definitions are educational and may be simplified. Always refer to your policy contract and consult a licensed agent for terms that affect coverage decisions.
CF

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 June 2026

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