Definition:Employer self-funded plan
💰 Employer self-funded plan is an arrangement in which an employer assumes the financial risk of providing health or other benefit coverage to its employees directly, rather than purchasing a fully insured group policy from an insurance carrier. Under this structure, the employer pays claims out of its own assets — often through a dedicated trust or general funds — and typically hires a third-party administrator (TPA) to handle claims processing, network access, and regulatory reporting. Self-funded plans are regulated primarily under the federal ERISA framework, which preempts most state insurance mandates and gives employers greater flexibility in plan design.
⚙️ To guard against catastrophic claims, virtually all self-funded employers purchase stop-loss insurance, which caps exposure at two levels: specific stop-loss limits the employer's liability for any single claimant, while aggregate stop-loss caps total plan-year claims. The interplay between the employer's retention level and the stop-loss attachment point is a key underwriting variable, and actuaries model expected claims using the employer's historical data, demographic profile, and trend assumptions. MGUs and specialized benefits brokers play an active role in structuring these programs, particularly for mid-size employers migrating from fully insured arrangements.
📈 Self-funding has grown steadily — the majority of covered workers at large U.S. employers now fall under self-funded plans — because it offers cost transparency, cash-flow advantages, and freedom from state premium taxes and certain benefit mandates. For the insurance industry, this shift reshapes the competitive landscape: carriers that once earned premium on fully insured business now compete for administrative services only (ASO) contracts and stop-loss placements, which carry thinner margins but high volume. Insurtech entrants are targeting this space with data-driven stop-loss pricing and digital plan-management tools, further pressuring incumbents to modernize.
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