Self-funded or fully insured: which suits us?

What you are really choosing between

The question is who keeps the difference between expected claims and actual claims. Under a fully insured arrangement, the carrier does. It prices your group, collects a fixed premium, and if the population claims less than projected, that margin is the carrier’s. In exchange you carry no variability at all.

Under self-funding, you keep it. You pay actual claims as they arise, buy stop-loss insurance to cap catastrophic individual and aggregate exposure, and retain both the savings of a healthy year and the exposure of a bad month.

What self-funding actually gives you

Beyond the retained margin, three things. Visibility into claims data, which fully insured arrangements frequently withhold and which is the raw material for every subsequent decision. Freedom in plan design, because you are not confined to a carrier’s filed products. And exemption from certain state-level premium taxes and mandated benefits, which varies by jurisdiction and is worth quantifying rather than assuming.

The visibility point is underrated. An employer who cannot see what is driving utilisation cannot act on it, and will spend every renewal negotiating a number rather than addressing a cause.

What it costs you

Cash flow variability, which is the real constraint. A bad claims month is a real cash event, and stop-loss reimbursement arrives after you have paid. An organization without the balance sheet or the internal tolerance for that will find the arrangement uncomfortable regardless of whether it is economically correct.

Also fiduciary responsibility, administrative complexity, and the need to actually understand stop-loss terms — the individual and aggregate attachment points, whether the contract is paid or incurred basis, and what happens at renewal to a claimant who has become expensive. Those terms are where self-funded arrangements are won or lost, and they get far less scrutiny than the headline projection.

The level-funded middle

Level-funded arrangements are self-funded underneath with a fixed monthly payment on top. You pay a consistent amount covering expected claims, stop-loss and administration, and receive a settlement afterwards if actual claims come in below projection.

This is frequently the right first step for a mid-market employer. It provides claims visibility and retained upside without the cash-flow variability, and it makes the eventual move to full self-funding an informed decision rather than a leap.

How to decide

There is no headcount at which the answer flips, despite the round numbers that circulate. What matters is whether your group is large enough for claims to be reasonably predictable, healthy enough that retaining the upside is likely to pay, and whether the organization can absorb a bad quarter without the decision being revisited under pressure.

The honest test is a three-year model against your own claims history, including a deliberately bad year. An arrangement that only works in the good scenario is not an arrangement, it is a bet.