Plain Answers

Captive insurance explained: what it is and when it’s worth discussing

In short: A captive is an insurance company owned by the business it insures. Instead of transferring all of its risk to the commercial market, the parent pays premium to its own licensed insurer, keeps the underwriting profit (and the losses) on the risks it retains, and buys reinsurance behind the captive for the exposures it doesn’t want to hold. Captives reward organisations with substantial, stable premium spend and genuinely good claims experience — and for most UK SMEs they are a conversation for later, not now. This page explains the mechanism so you can judge when that conversation is worth having.

What a captive actually is

Strip away the jargon and a captive is simply a licensed insurer with one dominant customer: its own parent group. The group pays premium to the captive much as it would to a commercial insurer; the captive issues policies, holds capital and reserves against claims, and usually buys reinsurance so that a catastrophic year cannot overwhelm it. If claims come in better than premium, the profit stays in the group instead of leaving with the market. If they come in worse, the group carries the difference. That symmetry is the whole idea: a captive is a decision to be rewarded, and penalised, for your own risk quality.

Single-parent captives and cells

The classic form is the single-parent captive: a standalone insurance company, wholly owned by one group, with its own board, capital and regulatory licence. It offers the fullest control and the fullest obligations — governance, audits, regulatory reporting, capital maintenance.

The lighter route is a cell captive: a cell within a protected cell company (PCC). The PCC’s core provides the licence and infrastructure; each cell’s assets and liabilities are legally segregated from every other cell. A business rents the machinery of an insurer rather than building one, which lowers the entry cost and shortens the runway — at the price of less autonomy. Group captives, shared by several unrelated owners, occupy a middle ground.

Why companies use them

Retained risk economics. Every insurance premium funds three things: expected claims, the insurer’s costs, and its margin. An organisation whose claims consistently run below what its premiums assume is, in effect, subsidising the rest of the market. A captive lets it keep the working layer of losses — the frequent, predictable ones — and pay the market only for genuine catastrophe protection.

Hard-market response. When commercial capacity tightens and prices rise across the market regardless of individual performance, captives let well-run organisations decouple part of their cost of risk from the market cycle — which is why captive formation historically accelerates in hard markets.

Control and data. A captive gives the parent direct sight of its own claims, the ability to shape cover for risks the market wordings serve badly, and a structured incentive to invest in risk management — because every prevented loss is now the group’s own money.

When it starts to make sense — and the honest SME answer

The threshold is a mechanism, not a number. A captive carries fixed frictional costs — capital, management, audit, actuarial and regulatory fees — that do not scale down. It therefore needs substantial, stable premium spend for the retained margin to clear those costs; credible multi-year claims data, because the case rests on demonstrating that your losses genuinely run below your premiums; a balance sheet that can absorb a bad year without distress; and the governance capacity to run a regulated entity properly.

For most SMEs, the honest answer is: not yet. The same objectives are usually better served by simpler tools — taking a higher excess in exchange for premium credit, presenting the risk to insurers properly so it is priced on its merits, and building continuity with insurers who see the good years. Those steps also build exactly the claims record a captive feasibility case would one day need. We cover that spectrum in self-insurance vs captive vs conventional cover.

Where domicile questions fit

Captives are incorporated and licensed somewhere, and jurisdictions differ — in regulatory regime and capital rules, licensing speed and cost, available structures such as PCCs, and tax treatment. International standards on economic substance mean a captive must be genuinely managed where it sits; a brass plate is not a strategy. These are real considerations with real trade-offs, and they belong at the end of a properly run feasibility study conducted with specialist advisers — not at the beginning of the conversation. We don’t recommend domiciles; we help you work out whether the conversation is worth starting at all.

Where Apex fits

Apex is a broker, not a captive manager. Our role is upstream: understanding your premium spend and claims record across the programme, being honest about whether the retained-risk economics could ever clear the frictional costs, and structuring the conventional programme well in the meantime. If the numbers ever justify a formal feasibility exercise, we can help you frame the questions and engage the right specialists. If they don’t, we will say so — most of the value of a captive conversation is finding that out cheaply.

Frequently asked questions

What is a captive insurance company?

A captive is a licensed insurance company owned by the business (or group) whose risks it insures. Instead of paying all of its premium to the commercial market, the parent pays some of it to its own insurer, retains the underwriting result, and typically buys reinsurance behind it for larger losses.

What is the difference between a single-parent captive and a cell captive?

A single-parent captive is a standalone licensed insurer owned by one group — the fullest form, with the greatest control and the greatest governance burden. A cell captive uses a cell within a protected cell company (PCC): the cell's assets and liabilities are legally segregated from other cells, giving much of the economic effect of a captive with lower set-up cost and shared infrastructure.

At what size does a captive start to make sense?

There is no universal figure. The mechanism works when a business has substantial, stable premium spend across its programme, credible claims data showing it consistently performs better than the premium implies, the balance sheet to absorb retained volatility, and the appetite to run a regulated entity. Below that, the economics are usually eaten by frictional costs.

Should an SME consider a captive?

Usually not yet. For most SMEs the same goals — lower net cost and reward for good risk management — are better reached through higher excesses, better risk presentation to insurers, and long-term insurer relationships. A captive conversation becomes worth having as premium spend grows, data matures and retained risk appetite develops.

Why does the choice of captive domicile matter?

Domiciles differ in their regulatory regimes, capital requirements, speed and cost of licensing, and tax treatment — and international rules on economic substance mean a captive needs genuine management and governance where it is based. These are questions for specialist advisers as part of a feasibility exercise, not a reason to pick a flag first.

Wondering whether a captive conversation makes sense yet?

We’ll look at your premium spend and claims record honestly — and tell you if the answer is “not yet”. Bristol-based, FCA-regulated, no product to sell.

Call 0117 325 0027 Request a programme review →

Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority (FRN 724952). This page is general information, not advice on a specific policy.