Stop-loss is the part of a self-funded proposal most employers skim, and it is the part that decides whether the arrangement is actually safe. Here is how attachment points work, what lasering does to a renewal, and the Utah rules that stop applying once you pass 50 employees.
Stop-loss insurance is coverage a self-funded employer buys to cap what a bad claims year can cost. It reimburses the plan once claims pass an agreed threshold — either for one person or across the whole group. Without it, self-funding is an open-ended liability. With it, the worst case is a number you can put in a budget.
In my experience, stop-loss is the part of a self-funded proposal employers skim. The spreadsheet shows a lower fixed cost than the fully insured renewal, everyone nods, and the attachment points get set by whoever assembled the quote. That is backwards. Those two numbers determine how much risk you just agreed to carry.
What is stop-loss insurance, and who needs it?
Stop-loss is insurance for the plan, not for the employees. When a self-funded employer pays claims out of its own money, stop-loss is what stops a single catastrophic case — a premature birth, a transplant, a year of specialty drugs — from becoming a cash-flow emergency. The employer pays claims up to a stated amount; above it, the stop-loss carrier reimburses the plan.
Most self-funded employers of any size buy it. The KFF 2025 Employer Health Benefits Survey found that at firms with 200 or more workers, 75 percent of covered workers in self-funded plans are in plans that carry stop-loss insurance. Self-funding itself is now the norm: 67 percent of covered workers overall are in self-funded plans, including 80 percent at firms with 200 or more workers and 27 percent at firms with 10 to 199.
What is the difference between specific and aggregate stop-loss?
Specific stop-loss protects against one person having a very expensive year. Aggregate stop-loss protects against everyone being slightly more expensive than projected. They fail in different ways, and a contract with only one of them leaves a real gap.
| Specific stop-loss | Aggregate stop-loss | |
|---|---|---|
| Protects against | One individual's claims running very high | Total plan claims running above projection |
| Threshold is | A dollar amount per covered person per year | A percentage of expected claims for the group |
| Typical trigger | A transplant, a NICU stay, a high-cost drug | A generally bad year across many members |
| What it pays | Claims for that person above the threshold | Group claims above the aggregate threshold |
| How often it pays | Most years, at most employers of size | Rarely — it is a genuine backstop |
Aggregate stop-loss almost never pays out, which leads some employers to treat it as an optional expense. That is the wrong reading. It is cheap precisely because it rarely triggers, and it is the only thing standing between you and a year where nothing catastrophic happened but everything was expensive.
How is the attachment point set, and what happens if you set it wrong?
The specific attachment point is the dollar figure above which the carrier takes over for one person. Set it low and you buy more protection at a higher premium. Set it high and you keep more premium but carry more risk. The right answer depends on your claims history, your workforce, and how much variability your cash position can absorb.
The failure mode I see most often is an attachment point chosen to make a proposal look competitive rather than to match the employer's tolerance. A high attachment point makes the fixed-cost column smaller, which makes the self-funded quote beat the fully insured renewal on the page. The risk has not gone anywhere. It has moved onto your balance sheet, where the spreadsheet does not show it.
The honest way to evaluate a stop-loss structure is to model three years, not one: an expected year, a bad year, and a bad year with reimbursements applied. If the arrangement only wins in the expected case, it is not a cost strategy, it is a bet.
What does Utah law require — and what changes above 50 employees?
Utah regulates small employer stop-loss contracts directly, and the protections are real. Under the Utah Small Employer Stop-Loss Insurance Act (Utah Code Title 31A, Chapter 43), a stop-loss contract issued to a small employer must include both a specific and an aggregate attachment point, carry guaranteed rates for at least 12 months, set the annual specific attachment point at no less than $25,000, and set the annual aggregate attachment point at no less than 90 percent of expected claims. The Act defines a small employer as one averaging between two and 50 eligible employees, and bars insurers from writing small employer stop-loss for groups with fewer than 10 enrolled employees.
Here is the part that matters for the employers I work with: none of those floors apply once you are above 50 employees. A 150-person Utah company is outside the Act. There is no statutory minimum attachment point, no guaranteed-rate requirement, and no mandated disclosure form. Everything that protects a 40-person employer by law becomes something a 150-person employer has to negotiate.
| Utah small employer (2–50) | Above 50 employees | |
|---|---|---|
| Minimum specific attachment point | $25,000 per year, by statute | No statutory minimum |
| Minimum aggregate attachment point | 90% of expected claims | No statutory minimum |
| Rate guarantee | At least 12 months | Negotiated |
| Lasering | Prohibited | Permitted unless your contract says otherwise |
| Standard cost disclosure | Required before the effective date | Ask for the equivalent |
That is not an argument for staying small. It is an argument for reading the contract. The state has already written down what a fair stop-loss disclosure looks like, and you can borrow it.
What is lasering, and why does it matter at renewal?
Lasering is when a stop-loss carrier singles out one individual and applies a higher attachment point to that person — or excludes them — while the rest of the group keeps the standard threshold. Utah Code defines it as increasing or removing stop-loss coverage for a specific individual within an employer group, and prohibits it outright in small employer contracts.
Above 50 employees, it is legal and common. It usually appears at the second renewal, once the carrier has seen your claims. The first-year quote looks excellent. Then someone in your group is diagnosed with something expensive, and the renewal comes back with that person lasered at a threshold several times the group's. Your fixed costs barely move, and your exposure quietly multiplies.
There are contract terms that address this — no-new-laser provisions, rate caps on renewal — and they cost something. Whether they are worth it is a real question. Not knowing whether your contract has them is not.
What does a good stop-loss disclosure look like?
Utah already answers this. Rule R590-268 requires small employer stop-loss insurers to use the Utah Stop-Loss Disclosure form, and the form is a useful template regardless of your size. It asks the carrier to state both attachment points, the fixed costs, the claims the employer retains, and a Total Employer Outlay at minimum, expected, and maximum — monthly and for the contract period.
That last row is the number most proposals leave out. A quote that shows you fixed costs without showing the maximum is showing you half the arrangement. If your stop-loss proposal does not include a maximum total outlay, ask for one in writing. Any carrier can produce it.
The disclosure guidance also explains the contract term notation. A 12/24 contract covers claims incurred over 12 months and paid within 24 — the run-out period. A 12/12 contract is meaningfully less protection for a meaningfully lower price, and the difference is easy to miss in a summary.
How does stop-loss work inside a level-funded plan?
A level-funded plan is a self-funded plan with stop-loss built in and a fixed monthly payment covering the claims fund, the stop-loss premium, and administration. KFF describes these arrangements as combining a relatively small self-funded component with stop-loss insurance that transfers a substantial share of the risk to the insurer, and reports that 37 percent of covered workers at firms with 10 to 199 workers are in one.
Level-funding is a reasonable on-ramp. It is also where employers most often stop asking questions, because the monthly payment feels like a premium. Two things are worth knowing. KFF notes these plans use health status in rating and underwriting, unlike insured plans, and are not required to provide all of the essential health benefits that insured plans must cover. Both facts cut in your favor in a healthy year and against you in other circumstances.
The other question is what happens to a surplus. If your claims come in under the funded amount, ask exactly when the refund is calculated, when it is paid, and what happens to it if you change carriers. The answer varies more than you would expect.
What should you ask before you sign?
Five questions, and you want them answered in writing rather than in a meeting.
- What is my maximum total outlay for the contract period, with fixed costs and retained claims broken out?
- Is the contract 12/12, 12/24, or something else, and what happens to claims incurred this year but paid next?
- Can you laser at renewal, and what would a no-new-laser provision or a renewal rate cap cost?
- What are the specific and aggregate attachment points, and what claims history were they priced from?
- What is my advisor paid on this placement, by whom, and does it change with the structure chosen?
That last one is not rude. Since December 27, 2021, ERISA has required people providing brokerage services or consulting to group health plans to disclose their expected compensation to plan fiduciaries, per the U.S. Department of Labor (2021). You are entitled to the answer.
What should a Utah employer do first?
Find out what you actually have. Most employers I meet who are already self-funded cannot say their attachment points from memory, and a surprising number have never seen a maximum-outlay figure. Pull the contract, find both attachment points and the contract term, and ask whether any individual is currently lasered.
If you are still fully insured and weighing the move, the funding decision comes first — I wrote about that trade-off in self-funded vs. fully insured health plans. Stop-loss is what makes the answer survivable, not what makes it correct. Employers across the Wasatch Front face a provider market concentrated among a small number of systems, which affects claims variability and therefore how much protection is worth buying. And if hospital pricing is the pressure you are feeling, reference-based pricing is an adjacent lever with its own trade-offs — one your stop-loss carrier has to be comfortable with before you adopt it.
What to do next
Stop-loss is not exciting and it is not where the savings story lives. It is the term sheet that decides what a bad year does to you, and it is usually the least-examined document in a self-funded arrangement.
If you want someone to read your current stop-loss contract and tell you plainly what your maximum exposure is — including the answer that your structure is fine as it stands — start a conversation. It is a short review, and knowing the number is worth more than most of what gets presented at renewal.
Tyson has specialized in employee benefits since 2010, helping C-suite executives and HR leaders build custom health plans that reduce costs and improve employee access to quality care.
Skyler partners with Utah employers to design strategic, data-driven employee benefits programs that align financial outcomes with workforce wellbeing — bringing the same boardroom-level thinking featured in Healthcare's C-Suite Solution to every engagement.