Level-Funded vs. Fully-Insured Health Insurance
A hybrid self-funding structure increasingly used by small and mid-sized employers, versus the traditional fixed-premium group plan.
Level-funded plans generally make sense for employers with 10 to 250+ employees, a reasonably healthy workforce, and enough cash reserve to weather a bad claims year — the upside is a potential year-end refund and more claims-data visibility. A fully-insured plan is the safer, more predictable choice for smaller groups, employers who can't absorb claims-cost volatility, or those in states with limited level-funded carrier options. A PEO health plan is a third structural option worth comparing for very small employers who want group-rate access without taking on funding risk directly. Model your total exposure either way with our Coverage Ratio Calculator.
| Key Dimension | Level-Funded Health Insurance | Fully-Insured Health Insurance |
|---|---|---|
| How Premiums Are Structured | Employer pays a fixed monthly amount covering expected claims, administrative fees, and stop-loss insurance premium — but the claims portion is really the employer's own money, held and managed by the carrier or a third-party administrator. | Employer pays a single fixed premium to the carrier, which fully assumes the risk of paying all claims regardless of how much employees actually use. |
| Why It Matters: Under level-funding, the employer bears more of the actual claims risk (with a stop-loss ceiling), while a fully-insured plan transfers essentially all risk to the carrier for a flat, predictable cost. | ||
| Year-End Financial Outcome | If actual claims come in under the projected amount, the employer typically receives some or all of the difference back as a refund or credit; the exact terms vary by carrier contract. | No refund mechanism — the premium paid is the premium paid, regardless of whether claims were higher or lower than expected that year. |
| Why It Matters: Level-funding gives a healthy workforce the potential upside of lower net costs over time, while fully-insured plans trade that upside for total cost predictability. | ||
| Claims Data Visibility | Employers typically receive more detailed, ongoing claims utilization data, which can inform wellness programs and future plan design. | Limited claims data is shared with the employer, since the carrier bears the risk and has less obligation to disclose utilization detail. |
| Why It Matters: More visibility helps larger employers manage costs proactively, but it also means seeing sensitive aggregate health trends across the workforce. | ||
| Regulatory Treatment | Often treated similarly to self-funded plans for certain state-mandate purposes, potentially exempting the plan from some state-specific benefit mandates under ERISA preemption — though this varies and is a frequent point of legal scrutiny. | Fully subject to state insurance mandates and regulations applicable to fully-insured group policies in that state. |
| Why It Matters: An employer considering level-funding specifically to avoid a state benefit mandate should get legal confirmation first, since regulators in several states have pushed back on this exact strategy. | ||
| Best Fit By Employer Size | Generally most viable for employers with roughly 10 to 250+ employees and a reasonably predictable, healthy claims history. | Available at any group size, and typically the only realistic option for very small employers (fewer than 10-15 employees) due to stop-loss underwriting minimums on level-funded plans. |
| Why It Matters: A very small employer often can't access competitive level-funded stop-loss coverage at all, making fully-insured (or a PEO health plan) the more realistic path. | ||
Use our open-source actuarial calculators to simulate deductibles, out-of-pocket exposure, and multi-policy trade-offs.
Frequently Asked Questions: Level-Funded vs. Fully-Insured Health Insurance
Direct answers to trade-offs, actuarial differences, and decision criteria.