What Is a Captive?
You've been paying a carrier
to keep your money.
With traditional health insurance, your company pays a fixed premium every year — regardless of whether your employees are healthy or not. When claims come in below what the carrier projected, the carrier keeps the difference. You get nothing back. No data. No leverage. And next renewal, your rates go up anyway.
A captive insurance arrangement changes that equation. Instead of paying a carrier to assume all your risk, you form or join a licensed insurance company — a captive — and retain a portion of that risk yourself. When your people are healthy and claims run low, you capture the savings. Not the carrier.
The term "captive" comes from the structure itself: the insurance company is captive to its members. It exists solely to serve the employers who own it — not outside shareholders, not a carrier's bottom line.
The core idea
A captive is a licensed insurance company owned and controlled by the businesses it insures. It's the difference between renting your insurance and owning it.
How It Works
Three layers.
Each one doing a job.
Employee benefits captives are structured in three distinct layers, each designed to handle a different type of claim. Together, they balance cost control, risk sharing, and catastrophic protection.
Why the middle layer matters
The captive layer is the shock absorber. It's what separates a captive from plain self-funding — and it's why your costs stay more stable year over year, even when individual claims spike.
Types of Captives
Three structures.
One concept.
The right captive structure depends on your company's size, appetite for risk, and goals. Here are the three most common arrangements for employer benefits:
| Single-Parent Captive | One employer forms its own standalone captive. Full ownership, full control, and the entire financial upside when claims perform well. Best suited for larger employers with sufficient scale to manage their own risk pool. |
| Group Captive | Multiple unrelated employers join together into one shared captive, pooling risk and splitting administrative costs. Members share in both savings and losses. Best for mid-size employers (typically 50–500 enrolled employees) who want captive economics without the overhead of a single-parent structure. |
| Cell Captive | A ring-fenced "cell" within a larger, pre-established captive structure — sometimes called a protected cell company (PCC). Faster to implement and lower cost to operate than a standalone captive, while still providing segregated financial exposure. Commonly used by employers who want captive access without building from scratch. |
A note on structure quality
Not all captives are built the same. Some arrangements marketed as employee benefits captives are property & casualty structures retrofitted for healthcare — a mismatch that adds complexity and obscures what's driving your costs. Always evaluate whether a captive was purpose-built for healthcare before committing.
Captive vs. Traditional Insurance
What changes —
and what you gain.
Here is how a captive arrangement compares to a traditional fully-insured health plan across the dimensions that matter most to CFOs and HR leaders:
| Traditional Fully-Insured | Employee Benefits Captive | |
|---|---|---|
| Claims transparency | None — carrier keeps your data | Full visibility into your own claims |
| Unused premium | Carrier keeps it | Returned to members when claims run low |
| Rate increases | Carrier-driven, disconnected from your performance | Tied to your actual claims experience |
| Plan design control | Predetermined, limited flexibility | Customizable to your workforce |
| Catastrophic risk | Covered, but you pay heavily for it | Covered by stop-loss at defined cap |
| Cost volatility | Unpredictable year-to-year | Absorbed by the shared captive layer |
| Who profits from good years | The carrier | Your company and fellow members |
Is It Right for You?
Captives reward
the right kind of employer.
A captive is not the right fit for every organization. But for employers who meet these criteria, it consistently outperforms the traditional market over time:
50 or more enrolled employees
Group captives are purpose-built for mid-size employers in roughly the 50–500 range. Below that threshold, there's not enough risk to spread meaningfully across the pool.
Historically average or better claims performance
If your workforce has generally healthy claim patterns, you're likely subsidizing higher-risk groups in the fully-insured market. A captive lets you stop doing that.
Appetite for data and transparency
Captive members see their claims data — often for the first time. Employers who want that visibility and are willing to act on it get the most out of the structure.
Commitment to employee health and wellness
In a captive, your wellness investments pay dividends directly back to you. Employers actively managing population health — through programs, incentives, or care navigation — are rewarded in a way the traditional market never allows.
Leadership with a long-term mindset
Captives reward patience. Year one may not show dramatic savings. Year three and five often do. Employers looking for a quick fix should stay fully insured. Employers looking to structurally change their cost trajectory are the right fit.
Currently fully insured or self-funded
Both are viable entry points. Fully-insured employers gain transparency and financial upside they've never had. Self-funded employers gain the volatility protection of the shared captive layer, which standalone self-funding doesn't provide.
Common Questions
Straight answers.
| Isn't this just self-funding? | It builds on self-funding, but adds two things self-funding alone doesn't have: a shared risk pool that absorbs mid-size claims across multiple employers, and stop-loss protection that caps your maximum exposure. The captive layer is what makes the difference between a volatile self-funded plan and a stable one. |
| What if claims are bad one year? | That's exactly what the captive layer is for. High claims from one member are absorbed across the group pool. If claims exceed the pool's capacity, stop-loss kicks in. No single employer bears the full weight of a bad year. |
| Do we lose control of our plan design? | No. One of the key advantages of a captive is that you maintain meaningful control over your plan design, contribution strategy, network partnerships, and wellness programs — far more than traditional fully-insured arrangements allow. |
| What does it cost to join a group captive? | There is an upfront capitalization contribution and ongoing administrative fees, which vary by captive structure and size. These are typically offset in the first year for employers with favorable claims history — and the financial upside in subsequent years is significant. |
| Who manages the captive day to day? | A captive manager handles operations, compliance, and reporting. A TPA processes your claims. Your benefits consultant coordinates between these parties and serves as your strategic advisor — that's the role I play for clients who move into a captive structure. |
| How long does it take to implement? | A group captive can typically be implemented in 60–120 days from a signed agreement. A feasibility assessment — evaluating whether a captive is right for your claims profile and size — is always the right first step and takes 2–4 weeks. |
| What's the risk of joining a small captive? | Scale matters significantly. A small or undiversified captive pool is more susceptible to volatility — one bad year from a few large claims can destabilize rates for everyone. Evaluating pool size, member composition, and historical performance is essential before committing. |
Ready to find out if a captive is right for you?
The first step is a feasibility assessment — a review of your claims history, employee count, and current plan structure to determine whether a captive would outperform what you're doing now. It takes two to four weeks and costs nothing to explore. Reach out to start the conversation.