Captive Insurance Feasibility: Should Your Company Own One?

Why owners consider captives in the first place

The captive insurance conversation usually starts the same way: the commercial market has stopped delivering value, and the owner wants to know if there's a better way.

Three triggers tend to drive the question. First, the commercial program has gotten expensive — premium has crept up year after year without the firm's loss experience justifying the increases. Second, the firm has invested in real risk-management improvements (loss control, safety, claims discipline) and the carrier hasn't priced those improvements into the renewal. Third, the firm has reached a size where the commercial broker treats the account as routine and the owner suspects there's better economics available somewhere.

The captive question is a financial question, not a sales question. The right answer is sometimes yes, often no, and occasionally "yes in three years but not yet." This guide is for owners and CFOs trying to figure out which answer applies to them.

What captive insurance actually is

A captive is a licensed insurance company owned by the parent (or parents) whose risks it insures.

The parent pays premiums to the captive. The captive accumulates reserves and pays claims. The captive is regulated like any other insurance company — capitalized, audited, subject to actuarial standards, supervised by the domicile regulator. What makes it "captive" is the ownership relationship: the captive insures the parent's own risks rather than competing in the open market.

The economic logic is straightforward. In the commercial market, the firm pays premium that covers expected losses plus the carrier's underwriting profit, expense load, and reinsurance costs. In a captive, the firm still pays the expected losses (now from its own balance sheet rather than someone else's), but the underwriting profit accrues to the captive — which the parent owns. Over a multi-year cycle in which the firm runs better than industry average, the captive accumulates real value.

Captives are not tax shelters, not bookkeeping arrangements, and not "self-insurance" in the loose sense. They are real insurance companies with real regulatory obligations.

When a captive makes economic sense

Captives don't fit every firm. The honest economic preconditions are:

• Premium volume. Annual commercial premium spend of roughly $250,000 or more across the lines you'd cede to the captive. Below that, the captive's operating costs (audit, actuarial, board, regulatory fees) eat the savings.
• Loss predictability. A multi-year track record where losses are predictable enough that the captive can actuarially fund them. Firms with extreme loss volatility need either reinsurance backstop or a longer hold period to absorb a bad year.
• Capital capacity. Initial capitalization of the captive (typically $250,000 to $1M for small captives, more for larger structures) plus the working capital to fund claims as they emerge. Captives are insurance companies; they have to be funded like insurance companies.
• Time horizon. A 5-to-10 year commitment. Captives accumulate value over multi-year cycles; firms that may exit, sell, or significantly restructure inside three years are usually better off in the commercial market.
• Operational discipline. The firm has to maintain loss control, safety, and claims management — because the captive's losses now hit the parent's balance sheet directly. Captives reward discipline and punish drift.

Firms that meet all five preconditions often leave significant money on the table by staying in the commercial market. Firms that meet only some of them should be in the commercial market until the missing preconditions are addressed.

The captive question is a financial question, not a sales question. The right answer is sometimes yes, often no.

Single-parent, group, and cell captives

Three structural options dominate the captive market, and the right one depends on the parent's size, risk profile, and ownership preferences.

Single-parent captive

One parent company owns the captive and the captive insures only that parent's risks. The parent captures 100% of the underwriting profit and 100% of the downside. Single-parent captives fit larger firms with stable risk profiles and the capital capacity to fund the structure alone. Capitalization typically starts at $1M+ depending on domicile and lines insured.

Group captive

Multiple unrelated companies own a single captive that insures all of their risks. Risk and reward are pooled across members — a bad year for one member is partially absorbed by the better experience of the others. Group captives fit mid-market firms that individually don't have the volume or risk diversity to support a single-parent captive but together do. Member selection is critical; a well-run group captive is highly disciplined about who it lets in.

Protected cell / segregated cell captive (PCC/SCC)

A single captive structure houses multiple insureds, each in a statutorily separated "cell." A cell's losses cannot reach assets in other cells. The cell structure offers some of the economics of a single-parent captive with lower formation cost and administrative complexity. PCCs fit smaller firms that want captive-style economics without the full single-parent structure overhead.

Series LLC captive

A newer hybrid using Series LLC structures in domiciles that allow them (Tennessee being one). Each series functions similarly to a cell, with statutory separation. The structure is younger and less battle-tested than traditional cells but increasingly attractive for certain mid-market profiles.

The 831(b) election and the small-captive question

IRC Section 831(b) allows small captive insurance companies — those with annual premium below approximately $2.85M in 2026, indexed for inflation — to elect to be taxed only on investment income rather than underwriting income.

The 831(b) election is legitimate when used properly. It's also been the source of significant abuse over the last 15 years, particularly the "micro-captive" structures the IRS targeted aggressively from 2016 onward. The 2017 PATH Act tightened the diversification and risk-distribution requirements, and the IRS has continued to litigate cases against captives that don't satisfy the requirements.

The honest current state of 831(b):

• The election is alive and used by legitimate small captives
• The diversification and risk-distribution requirements are real and have to be satisfied
• Captives that exist primarily for tax benefit rather than genuine risk transfer remain at significant IRS challenge risk
• The right legal, actuarial, and tax counsel make the difference between an 831(b) that holds up and one that gets challenged

If a promoter is pitching 831(b) primarily on tax benefit, that's the wrong reason to form a captive. If the captive makes economic sense as a risk-financing tool and the 831(b) treatment is a secondary benefit, the structure has a real path.

Domicile selection

The domicile of a captive is where it's licensed and regulated. The choice matters for tax treatment, capital requirements, regulatory experience, fronting options, and the ongoing administrative burden.

Leading US onshore domiciles

• Tennessee — mature captive statute, experienced regulator, no premium tax for resident captives, an active domestic ecosystem. Strong default for mid-market US firms, especially Tennessee-based ones.
• Vermont — the largest US domicile by captive count, deep regulator experience, broad statutory authority for varied structures.
• Utah — competitive capital requirements, favorable for series and cell structures.
• Delaware — strong corporate law tradition, attractive for captives needing complex governance structures.
• South Carolina — long-established, favored for certain industry verticals.

Leading offshore domiciles

• Bermuda — the dominant offshore captive domicile, particularly for larger captives and reinsurance arrangements. Sophisticated regulator, deep market infrastructure.
• Cayman Islands — large, mature market, particularly strong for healthcare captives.
• Anguilla — favored for smaller captives and certain cell structures.
• British Virgin Islands, Guernsey, Isle of Man — niche but viable for specific use cases.

For most US-based mid-market companies, Tennessee or Vermont is the right default. Offshore domiciles introduce tax complexity (the federal excise tax on premium paid to non-US insurers, FATCA reporting, transfer pricing) that should only be incurred when the offshore structure delivers material benefit beyond what an onshore domicile provides.

AM Best rating and fronting carriers

A fronting carrier is a licensed admitted commercial insurer that issues the captive's policies on behalf of the captive, providing AM Best-rated paper. The fronting carrier reinsures the risk back to the captive.

Fronting matters when the captive needs to satisfy third-party requirements that demand rated paper:

• Contract counterparties (large customers, prime contractors) who require their insurance partners to be AM Best-rated
• Lenders who require rated coverage as part of loan covenants
• Regulators in certain industries that require admitted, rated paper
• Reinsurance markets that prefer to deal with rated entities

The fronting carrier charges a fee (typically 4-7% of the ceded premium) and may require collateral, depending on the captive's financial strength and the front's risk appetite. Captives that don't need rated paper for their insurance program — pure captives serving risks where rating doesn't matter — can skip fronting and reduce expense.

The feasibility study — what it costs and what it produces

The feasibility study is the diagnostic that determines whether a captive makes economic sense for a specific firm. Done well, it's the single most important pre-formation step.

A proper feasibility study includes:

1. Actuarial analysis of 5-10 years of historical loss data, by line of coverage
2. Financial modeling showing projected captive performance across multiple loss scenarios
3. Tax analysis of the federal, state, and (if applicable) offshore tax consequences
4. Domicile comparison covering capital requirements, regulatory environment, and administrative cost
5. Program design proposal showing which lines to cede, what retention to take, what reinsurance to buy
6. Capitalization plan showing initial capital requirement and ongoing reserve build
7. Honest disqualifier section identifying what would change the recommendation

A proper feasibility study costs $25,000 to $75,000 depending on scope. The fee is usually fixed and disclosed in advance. Be cautious of "free" captive feasibility offerings — the broker or promoter is being compensated somewhere, and the analysis tends to favor whichever outcome compensates them most.

The output of a good feasibility study is one of three answers:

• "Yes, here's how to structure it" — proceed to formation
• "Not yet, here's what would have to change" — defer with a written checklist
• "No, the commercial market is right for you" — stay where you are

All three are legitimate outcomes. A feasibility process that always returns "yes" is selling something other than analysis.

The sunk-cost trap

The hardest captive decision is not whether to form one. It's whether to close one.

Captives that made economic sense at formation can stop making sense over time — loss experience deteriorates, the parent's risk profile changes, the regulatory environment shifts, the commercial market softens enough that the captive's value proposition compresses. The team that built the captive is often reluctant to admit the strategy isn't working, and the sunk-cost reasoning ("we've already invested in this") delays the decision longer than it should.

Annual independent review by an outside broker is the standard discipline. The question to ask each year is not "are we still saving money?" but "given everything we know now, would we form this captive today?" If the answer is no, the right move is usually to wind down — even if winding down is administratively complex.

We covered the dynamic in our briefing on the captive sunk-cost trap.

Questions to ask a captive advisor

Whether your advisor is PFTN or someone else, these are the questions worth asking before signing a feasibility engagement letter:

1. Is your feasibility fee disclosed in advance, and is it independent of whether I form a captive?
2. How many feasibility studies have you delivered, and how many returned "don't form" recommendations?
3. Will you compare at least three domiciles, or do you have a fixed preference?
4. Have you placed group captives, single-parent captives, and cell captives? Walk me through one of each.
5. If you're recommending 831(b), how do you address the diversification and risk-distribution requirements?
6. What's your relationship with the captive managers, actuaries, and fronting carriers you'll recommend? Are you paid by any of them?
7. What happens if the feasibility study says don't form a captive? Do you still get paid?
8. Will you commit in writing to annual independent review post-formation?

An advisor who can answer all eight cleanly is running an independent feasibility model. One who can't is running a sales model and the recommendation is going to reflect that.

Frequently asked questions

— Ryan Mefford, President & Risk Advisor