Definition:Self-funded insurance
💰 Self-funded insurance is an arrangement — most prevalent in employee health benefits — where an employer assumes the financial responsibility for paying its employees' claims directly rather than purchasing a fully insured group policy from an insurance carrier. The employer sets aside funds (or pays claims as they arise) and typically contracts with a third-party administrator (TPA) to handle claims processing, network access, and compliance, while retaining the underlying risk on its own balance sheet.
⚙️ Under a self-funded plan, the employer pays actual claims costs plus administrative fees, rather than a fixed premium to an insurer. To protect against unexpectedly large individual claims or aggregate annual losses, most self-funded employers purchase stop-loss insurance — both specific (per-claimant) and aggregate (total plan) layers — from a stop-loss carrier. This hybrid structure means the employer bears predictable, attritional losses while transferring catastrophic tail risk to the insurer. Cash flow advantages are significant: rather than prepaying a fully insured premium that includes the carrier's profit margin and risk charge, the employer pays only for the healthcare actually consumed, plus the cost of the stop-loss coverage and TPA services.
📈 Self-funded insurance has grown steadily among mid-size and large employers, and its expansion into smaller employer groups — enabled by level-funded products and insurtech platforms that simplify administration — is reshaping the group health market. For carriers and MGAs, this trend means that stop-loss underwriting has become one of the fastest-growing specialty lines, requiring sophisticated actuarial modeling of individual high-cost claimants and medical trend. Regulators pay close attention as well: self-funded plans for private employers are governed primarily by federal ERISA law rather than state insurance regulation, creating a different compliance landscape than fully insured products. Understanding the self-funded ecosystem — from TPA selection to stop-loss attachment points — is essential for any professional operating in the health benefits space.
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