Level-funded vs fully insured: how to compare them honestly
These are the two arrangements most small groups actually choose between, and the two quotes cannot be compared as printed. One number is the whole cost. The other is an expected cost with a ceiling attached, and the ceiling is where the decision lives.
The structural difference in one paragraph
Fully insured means the carrier holds the risk. The employer pays a premium, the carrier pays the claims, and in a good year the carrier keeps the difference. Level-funded means the employer holds the risk and buys it back down: the plan is self-insured under ERISA, the employer's money pays claims out of a funded account, stop-loss insurance caps the exposure, and the whole thing is invoiced as one fixed monthly amount so it feels like premium. That last part is the product design, and it is also what makes the comparison deceptive — a level-funded invoice looks like a premium and is not one.
If the question in front of you is level-funded against true self-funding rather than against fully insured, that is a different set of trade-offs, covered in level-funded vs self-funded. For the mechanics of the level-funded wrapper itself, start with level-funded health plans explained.
Where the two actually diverge
| Fully insured | Level-funded | |
|---|---|---|
| Who pays claims | The carrier, from premium it has already collected. | The employer, from a claims fund, with stop-loss above the attachment point. |
| Regulation | State insurance law, plus ACA market rules. | ERISA, as a self-insured plan. Stop-loss itself is state-regulated. |
| Rating basis | Small groups are ACA-rated on age, area, family size and tobacco. Health status cannot be used. | Medically underwritten. A healthy group can price below its ACA rate; an unhealthy one may be declined. |
| The number on the quote | Premium. It is the whole cost and it is fixed. | A fixed monthly total covering the claims fund, admin and stop-loss premium — plus a separate maximum liability. |
| Good claims year | The carrier keeps the margin. | Surplus may be refunded or credited, per the contract. Read whether, when, and how much. |
| Claims data | Limited, especially under 100 lives. | Reporting is typical, which is what makes the next renewal arguable. |
| Leaving | Cancel at renewal; no tail. | Run-out claims and terminal liability follow you. This is the cost most often missed. |
The comparison error almost everyone makes
Put a $42,000 monthly premium next to a $38,500 level-funded fixed cost and the level-funded option wins by $3,500 a month. Presented that way, it is not a comparison — it is one number against a different kind of number.
The fully insured premium is the maximum. It is also the minimum. Nothing in the year changes it. The level-funded fixed cost is the expected outlay, and it sits underneath a separate maximum liability that applies if claims run at or above the aggregate attachment point for the whole year. A defensible side-by-side therefore shows three level-funded figures against one fully insured figure:
- Fixed cost. What the employer is invoiced monthly. This is the number the quote leads with.
- Expected total cost. Fixed cost plus the claims the group is projected to incur inside the attachment point.
- Maximum liability. The worst legitimate year, at the aggregate attachment point. Line this up against the fully insured premium — this is the only apples-to-apples row on the page.
Show the employer both ends. If maximum liability is below the fully insured premium, level-funded is dominant and the recommendation is easy. If it is above, you are asking the employer to accept a defined downside in exchange for an expected saving, which is a real decision they are entitled to make with the number in front of them. The self-funded cost calculator works these three figures out from an attachment point and a claims projection.
Underwriting is what makes it cheaper, and what makes it fragile
A level-funded quote comes back low because the group was medically underwritten and priced on its own health, while its ACA small-group rate is set from age, area, family size and tobacco use with health status excluded. A healthy group beats its community rate. That is the mechanism and there is nothing wrong with it.
It cuts the other way too. Underwriting can return a rate at or above the fully insured option, in which case the analysis is over. And it repeats: a group that has a bad year is re-underwritten at renewal, and the same mechanism that produced the saving produces the increase. Before recommending the switch, ask what happens at renewal after a bad year, and whether the ACA-rated market will still take the group back — usually it will, since small-group coverage is guaranteed issue, but the timing matters and the rate will be the community rate, not the old one.
Surplus and run-out: the two clauses that decide the real cost
Surplus refunds are the headline benefit of level funding, and the contract terms vary enough that the headline is not always true. Read whether surplus is returned at all, what share, how long after the plan year, and whether the employer must still be on the plan to collect it. A refund payable twelve months later, only to a renewing group, is a retention clause with a friendly name.
Run-out is the mirror image and it is the cost most often left out of a comparison. Claims incurred during the plan year but submitted after it ends still belong to the employer. Whether a 12/12 or 12/15 contract basis covers them, and what terminal liability coverage costs, decides what leaving actually costs — and a fully insured plan has no equivalent. The stop-loss terms behind all of this are covered in reading the stop-loss terms on a level-funded quote.
When fully insured is the right recommendation
It frequently is, and a comparison that never lands there is not being run honestly.
- The employer cannot absorb maximum liability in a bad year without cutting something that matters.
- Cash flow is tight or seasonal, and a variable claims month lands badly.
- The census is small enough that two or three claimants move the whole year.
- Underwriting came back at or above the ACA rate, so there is no saving to trade against the risk.
- Nobody at the company wants to think about the health plan again until next year. This is a legitimate requirement, not a failure of nerve.
Common questions
What is the difference between level-funded and fully insured?
In a fully insured plan the carrier holds the risk: the employer pays a fixed premium, the carrier pays the claims, and it keeps the margin in a good year. In a level-funded plan the employer is self-insured under ERISA but pays a fixed monthly amount covering a claims fund, administration and stop-loss premium. Claims above the stop-loss attachment point sit with the stop-loss insurer, surplus in a good year may come back to the employer, and the employer generally gets claims reporting a fully insured small group would not see.
Can you compare a level-funded quote and a fully insured quote side by side?
Not on one line, which is the most common error in this comparison. A fully insured premium is the entire cost. A level-funded fixed monthly total is the expected cost, and it sits alongside a separate maximum liability that applies if claims run high all year. An honest side-by-side shows three numbers for the level-funded option — fixed cost, expected total cost and maximum liability — against one number for the fully insured option, and puts maximum liability next to the premium so the employer sees the real range.
Is level-funded cheaper than fully insured?
Often at the quote, and not always over a renewal cycle. Level-funded plans are medically underwritten, so a healthy group can be priced below its ACA community rate — that is the whole mechanism. The savings are real but conditional: they depend on the group staying healthy, on surplus terms that actually return money, and on the employer being able to absorb the maximum liability in a bad year. Model the maximum, not the expected, before recommending it.
When should a small group stay fully insured?
When the group cannot absorb the maximum liability without pain, when cash flow is tight or seasonal, when the census is small enough that two or three claimants swing the year, when underwriting comes back at or above the ACA rate anyway, or when the employer has no appetite for run-out and terminal liability at exit. Fully insured is also the right answer when nobody at the company wants to think about the health plan again until next year, which is a legitimate requirement.
Where to go next
To build the side-by-side described above from the carrier documents you already have, plan comparison normalizes fully insured and level-funded quotes into the same fields, and scenario modeling holds the expected and maximum cases side by side. For presenting the outcome, how to present a level-funded renewal covers the conversation itself.