Self-Funded (Self-insured) Plan

A self-funded or self-insured health plan is one in which the employer directly pays employee health claims from its own assets : rather than paying a fixed premium to an insurance company. The employer bears the financial risk of claims instead of the insurer. Most self-funded employers hire a third-party administrator (TPA) or insurance company to process claims, and purchase stop-loss insurance to cap liability for catastrophic claims.

Fully insured: employer pays a fixed premium per employee to an insurance carrier, which then pays all claims and assumes all risk. Self-funded: employer pays actual claims as they occur plus administrative fees, with a stop-loss policy capping catastrophic exposure. Self-funded plans typically cost 5-15% less than fully insured for employers with healthy populations, provide more plan design flexibility, offer detailed claims data for wellness program targeting, and are exempt from most state insurance mandates.

Cost reduction mechanisms: employers pay actual claims rather than pooled premiums that include the insurer’s profit margin and risk loading; self-funded employers retain the claims cost savings in good years (fully insured employers pay the same premium regardless of actual claims); self-funded plans have more flexibility to implement cost management programs (reference-based pricing, direct primary care, centers of excellence for high-cost procedures); and detailed claims data enables targeted wellness programs that reduce future claims.

Stop-loss insurance protects self-funded employers from catastrophic claims. Specific stop-loss covers individual claims above a per-member threshold (e.g., $100,000 per person per year) : the insurer pays amounts above that limit. Aggregate stop-loss covers total plan claims that exceed a defined percentage of expected annual costs (typically 125%) : protecting against a bad claims year across the entire population. Both types together provide the safety net that makes self-funding viable for mid-size employers.

A TPA is a company that administers a self-funded health plan on the employer’s behalf, processing claims, managing the provider network, handling appeals and grievances, providing member customer service, generating reports, and ensuring regulatory compliance. TPAs do not bear insurance risk, that remains with the employer. Major TPAs include UnitedHealthcare (administers self-funded plans even though it’s also an insurer), Cigna, Aetna, and regional TPAs. The employer pays TPA fees separately from claims costs.

Self-funded plans are most common among: large employers (1,000+ employees) who have the financial capacity to absorb claim volatility and the employee base to spread risk effectively; mid-size employers (200-500+) who purchase robust stop-loss coverage; and employers with relatively young, healthy workforces where claims costs are predictable and below fully insured premiums. Very small employers (under 100 employees) typically cannot self-fund due to catastrophic single-claim risk relative to their size.

Transition triggers: the organization has 200+ employees (sufficient risk pool to absorb volatility), has experienced consistent fully insured premium increases exceeding claims growth, has a relatively young and healthy workforce (favorable risk profile), wants more plan design flexibility (state insurance mandates don’t apply to ERISA self-funded plans), needs detailed claims data for wellness program targeting, and has the administrative capability or TPA partner to manage the plan. Actuarial analysis should precede the decision.

Level-funded plans are a hybrid product designed for smaller employers (50-200 employees) who want self-funding benefits without the volatility. Employers pay a fixed monthly ‘level’ amount that includes estimated claims, stop-loss insurance, and administrative fees. At year-end, if actual claims are lower than the level fund, the employer receives a refund. If claims exceed the fund, stop-loss insurance covers the excess. Level-funded plans provide the predictability of fully insured with the cost-saving potential of self-funding.

Self-funded plans are governed primarily by ERISA (federal) rather than state insurance law : this federal preemption is a key advantage, as self-funded plans are exempt from state insurance mandates (e.g., state-mandated benefits not required by federal law). They must comply with: ACA requirements (preventive care coverage, dependent coverage to 26, no annual/lifetime limits for essential health benefits), HIPAA privacy and security rules (for protected health information), COBRA, Form 5500 annual reporting to the DOL for plans with 100+ participants, and ERISA fiduciary standards.

Required infrastructure: Third-Party Administrator (TPA) or insurance carrier to process claims, a pharmacy benefits manager (PBM) for prescription drug claims, stop-loss insurance carrier, plan document and summary plan description (SPD), HIPAA privacy and security compliance infrastructure, claims data reporting capabilities, an appeals and grievance process, and HR staff or consultants knowledgeable in ERISA plan administration. The compliance burden is higher than fully insured plans : many employers work with benefits consultants for ongoing support.