A captive insurance company is an insurer you own that covers your own business risks, and its tax benefits hold up only when it operates as real insurance. For a business owner netting $300,000 to $1,000,000 a year, the strategy can fit. It works best as one part of a planned structure, built on genuine risk and a clean tax file, not as a stand-alone deduction. We prepare and plan taxes for owners at that level, so this guide covers how the strategy works, what the IRS tests, and how to decide whether it belongs in your plan.
TL;DR
- A captive is a licensed insurance company you own that insures your operating businesses. It is a form of self-insurance with its own balance sheet.
- Under Section 831(b), a qualifying small captive can elect to be taxed only on investment income, not on premiums it earns. The 2026 premium cap is $2,900,000.
- Premiums are deductible only if the arrangement is genuine insurance: real risks, actuarially supported pricing, risk distribution and proper operations.
- The IRS has flagged micro-captive patterns as a transaction of interest. A failed captive can lose deductions and face penalties and interest.
- Decide on risk first, tax second, and coordinate the captive with your entity structure and annual return.
Table of Contents
- What a captive insurance company is
- How the 831(b) election changes the tax picture
- Where captives go wrong
- Pros and cons of a captive, stated plainly
- A worked example
- How to evaluate a captive in your plan
- Where captive planning fits with the rest of your tax strategy
- Getting this into your plan
- FAQ
- Sources
What a captive insurance company is
A captive is a wholly owned subsidiary that insures its non-insurance parent company or companies. The National Association of Insurance Commissioners describes it as essentially a form of self-insurance, usually set up to meet the owners' own risk-management needs. The same page notes that captives may provide significant tax advantages.
The mechanics are simple on paper:
- Your operating company, or several of them, buys insurance policies from the captive.
- The operating company pays premiums.
- The captive holds those premiums as reserves, invests them, and pays claims when covered losses occur.
- If claims run lower than premiums over time, the captive's surplus stays with the captive and is part of your overall plan.
The practical difference from ordinary self-insurance is separation. When a business simply sets cash aside for possible losses, that cash sits in general funds. A captive holds separate assets for potential losses, which can help smooth balance-sheet volatility.
Who typically looks at a captive
Captives tend to make sense for owners who have real exposures that commercial policies cover poorly, or not at all. Examples include:
- Trades and recurring-service businesses (HVAC, plumbing, landscaping, commercial cleaning) with equipment, contract, or business-interruption risks that standard policies exclude or price steeply.
- Owners with several operating entities that share risk, which can make the diversification test easier to meet.
- Established, profitable businesses with the cash flow to fund premiums and absorb a claim.
If you are earning under roughly $300,000, the cost of formation, actuarial work and annual compliance usually outweighs the benefit. At higher income, the question becomes how a captive fits with the rest of your structure.
How the 831(b) election changes the tax picture
Most small captive tax strategies rest on Section 831(b) of the Internal Revenue Code. It allows qualifying small non-life insurance companies to elect to be taxed only on taxable investment income, which leaves underwriting income (the premiums less claims and expenses) out of the federal tax calculation.
Three features matter in practice.
The premium limit. The cap is indexed for inflation. For taxable years beginning in 2026 it is $2,900,000. Check the current figure each year with your preparer.
Diversification. The statute offers two routes. Either no more than 20% of premiums come from any one policyholder, or ownership of the captive roughly matches ownership of the insured businesses, with a de minimis tolerance of 2 percentage points for each specified holder. For an owner with one business and one policy, the 20% route is hard to meet. The ownership-matching route needs careful planning of who owns the captive and who owns the insured entities.
Permanence. Once the election is made, it applies to that year and all later years while the requirements are met. Revoking it requires the consent of the Secretary of the Treasury. Treat it as a long-term commitment, not an annual toggle.
The two layers of tax
The tax picture has two sides, and a good plan models both.
| Layer | What happens | What to model |
|---|---|---|
| Operating company | Deducts premiums as an ordinary insurance expense, if the arrangement qualifies as insurance | Premium amount against actuarial support and real exposure |
| Captive | With a valid 831(b) election, taxed on investment income only | Investment returns, reserves, claims history, state premium taxes |
| Owner | Taxed when captive funds reach you, for example through dividends or liquidation | Timing and character of distributions, and your overall bracket |
Some commentary describes the final layer as capital gains on liquidation. That outcome depends on facts and on how the captive is wound down, so confirm it against your own situation rather than assuming it.
Where captives go wrong
The strategy has drawn serious attention from regulators. In Notice 2016-66, the Treasury and IRS identified micro-captive transactions with certain features as potential tax-avoidance or evasion concerns. Those features include:
- Insuring implausible risks.
- Paying premiums with no actuarial analysis behind them.
- Transferring captive capital to the insureds, owners or related persons, for example through loans back to the owner.
The consequence of failing is concrete. If the arrangement is not insurance, the insured cannot deduct the payment as an insurance premium, and the captive's 831(b) election is invalid.
There is a state layer too. A captive that fails the federal tests may still be an insurance company for state purposes, and it may face premium or self-procurement taxes. Failure can also mean loss of premium deductions, with penalties and interest.
Corporate attorneys put the lesson plainly. The American Bar Association's business law guide says a captive should be formed primarily for legitimate risk-management and risk-financing purposes, and it cautions owners against aggressive tax-avoidance strategies that invite long-term scrutiny. The same guide lists significant tax penalties for a poorly designed captive among the real risks.
What a defensible captive looks like
A captive that holds up generally shows these traits:
- Real exposures. The policies cover risks your business actually faces, priced on a documented basis.
- Actuarial support. Premiums come from an independent analysis, not from the amount you wish to deduct.
- Risk distribution. Premium sources meet the diversification test, and the captive does not rely on a single policyholder.
- Separate operations. The captive is licensed, funded, keeps its own books, and pays claims through a documented process.
- No back door to the owner. Captive capital is not moved to you or related parties outside proper distributions.
- Written agreements. Policies, claims procedures and related-party arrangements are documented. Our guide to an intercompany agreement checklist shows the discipline that related-party arrangements need.
Pros and cons of a captive, stated plainly
Owners searching this topic usually want the trade-offs, so here they are in one place.
| Advantages | Considerations to plan for |
|---|---|
| Coverage for risks the commercial market handles poorly | Formation, licensing, actuarial and management costs |
| Premiums that stay in an entity you control, rather than going to an outside insurer | You carry the claims risk, so the captive needs enough capital |
| Separate assets for losses, which can smooth balance-sheet volatility | Annual compliance and documentation |
| Potential federal tax treatment under 831(b) on investment income only | Tax outcomes depend on genuine insurance qualities |
| Fits multi-entity structures where several businesses share risk | Ownership alignment and diversification must be designed up front |
Read the right column as a to-do list. Each item is something a proper design handles before the first premium is paid.
A worked example
Consider an owner with three related companies: a plumbing contractor, a commercial cleaning company and a property-holding entity. The operating companies have exposures such as equipment breakdown, contract disputes and business interruption that their commercial policies cover thinly.
An independent actuary prices coverage for those specific risks. The three companies each buy a policy from the captive, which spreads premiums across several insureds. Ownership of the captive is aligned with ownership of the insured businesses. Each operating company deducts its premium as an insurance expense. The captive invests the reserves, pays any claims, and, with a valid election, pays tax on investment income.
The numbers are illustrative only. The point is the sequence: risk analysis first, pricing second, structure third, tax result last. Reverse that order, deciding on a deduction and then finding risks to justify it, and you have the pattern the IRS calls out.
How to evaluate a captive in your plan
Work through these questions with your tax advisor before you commit.
- Is the risk real? List the exposures you face that commercial coverage does not fully address, with the cost of each.
- Can the business afford the premiums and a loss? The captive keeps the risk. A bad year should not threaten the parent.
- Does your structure fit the diversification test? Map ownership of every entity before you design anything.
- How does it interact with your entities? If you are an S-corp owner, your entity choices change the math. Our article on revoking S corp status shows how entity decisions ripple through a plan, and accountable plan rules cover the reimbursements that sit beside it.
- What is your exit? Plan how funds eventually reach you and how that is taxed.
- Who is on the team? A captive needs a licensed domicile, actuarial support, legal structuring and a tax advisor who will carry it through each return.
- What is your record-keeping like? If an examination arrives, the file is the defense. Know the statute of limitations periods that govern how long returns stay open.
Where captive planning fits with the rest of your tax strategy
A captive is rarely the first move. For most owners netting $300,000 to $1,000,000, the foundation comes first: the right entity structure, S-corp planning, reasonable compensation, accountable plans, depreciation and real estate strategy, and clean intercompany agreements. A captive layered over a weak foundation adds cost and scrutiny. A captive layered over a sound structure is a decision made from strength.
It also helps to see captive tax strategy for what it is: an insurance decision with tax consequences, not a tax product. The IRS test asks whether you bought insurance. Your plan should be able to answer yes on the evidence.
Our view
Owners come to us after hearing that a captive is a way to deduct more. Our approach is to start from the whole return and the whole structure. We look at entities, compensation, depreciation and cash flow first, because those decisions set how much a captive could add and whether the business can carry it.
We favor strategy that is custom-built and holds up if it is examined. That means every deduction in your plan has a documented reason behind it, whether it comes from an S-corp election, an accountable plan or an insurance arrangement. It also means year-round support, so decisions are made before year-end, not in March.
If you are weighing a captive, bring us the question early. We will work through how it fits your entities and your return, and we keep the numbers and the documentation in step with the plan as it develops.
Melissa
Getting this into your plan
Our Quarterly Tax Strategy Sessions are $9,497 per year, and Monthly Tax Advisory is $11,997 per year. Both are year-round engagements built around proactive planning, so a decision such as a captive is reviewed against your whole structure instead of in isolation. If your first need is the S-corp foundation, the S-Corp Tax Strategy Accelerator is $997.
If a prior return has already drawn IRS attention, we also handle tax resolution and audit defense, so your planning and your representation come from one team.
FAQ
Is captive insurance a legitimate tax strategy?
Yes, when it is genuine insurance. The NAIC describes captives as a recognized form of self-insurance, and Section 831(b) is part of the Internal Revenue Code. The tax result depends on real risk, actuarial pricing, risk distribution and sound operations. Attorneys advise forming a captive mainly for risk-management reasons.
What happens if the IRS says my captive is not insurance?
The operating company loses its premium deduction, and the captive's 831(b) election is invalid. State premium or self-procurement taxes may also apply, and federal penalties and interest are possible. If you receive an IRS notice, contact us or your tax representative promptly.
How much premium can a captive take in under 831(b)?
For taxable years beginning in 2026, the limit is $2,900,000. It is indexed for inflation, so confirm the figure for the year you are planning. Diversification requirements apply in addition to the cap.
Is a captive right for a business earning $300,000 to $1,000,000?
It can be, if you have real, insurable exposures and the cash flow to fund premiums and absorb a loss. Costs for formation, actuarial work and compliance recur each year. The first step is a review of your structure and risks, which we can do as part of a strategy engagement.
Sources
- NAIC: Captive Insurance Companies
- IRS Rev. Proc. 2025-13
- 26 USC 831(b): specified holder definition (Cornell LII)
- Micro-captives (831(b)) and the IRS
- IRS Notice 2016-66
- Business Insurance: Captive owners face evolving tax qualification and enforcement issues
- American Bar Association: A Business Lawyer's Guide to Captive Insurance
- Investopedia: Captive Insurance Company