To self-insure, you set aside your own funds to pay claims directly instead of buying a commercial policy, and you prove to regulators that you can keep paying them for as long as the obligations last. How to self-insure depends on what you’re covering: workers’ compensation runs through your state’s insurance department or workers’ comp board under financial tests set by that state, while a self-funded employee health plan is established under federal ERISA rules with no state application at all. Either path demands substantial reserves, formal documentation, and compliance work that continues for the full life of the program and often well beyond it.
Underground storage tank operators can also self-insure environmental cleanup liabilities under a separate federal financial test requiring at least $10 million in tangible net worth.1eCFR. 40 CFR 280.95 – Financial Test of Self-Insurance That regime is distinct from the two covered below, so don’t assume workers’ comp or health plan procedures apply to it.
Financial Requirements for Workers’ Compensation Self-Insurance
State regulators set the bar high because an injury claim can stay open for decades. The specifics differ by state, but three things show up almost everywhere: a minimum tangible net worth, a security deposit, and audited evidence of consistent profitability.
Minimum net worth floors range from roughly $40,000 in some states to $5 million in others, scaled to workforce size and jurisdiction. On top of that, you post a security deposit, usually a surety bond, an irrevocable letter of credit, or cash held by the state. Minimum deposits generally run from $100,000 to several million dollars, pegged to your estimated claim liabilities. Most states want to see several years of audited financials showing the organization can absorb claim costs without threatening solvency. Before filing anything, compare your current assets against the required reserve level to see where you actually stand.
Actuarial Certification
A qualified actuary must prepare a study projecting your future claim liabilities. Your accountant can’t do this. The actuary needs a recognized professional designation such as Fellow of the Casualty Actuarial Society or an equivalent credential accepted under current NAIC guidance.2NAIC. Definition of Accepted Actuarial Designation – 2026 Draft The report drives the required security deposit, and regulators recalculate the number as your loss experience changes. Some states adjust annually. If your deposit falls below the required level, your certificate is at risk.
Applying to Self-Insure Workers’ Compensation
The application goes to your state’s department of insurance or workers’ compensation oversight board. Forms vary, but the documentation package looks similar everywhere:
- At least three years of audited financial statements from a CPA.
- Three to five years of claims history showing frequency and dollar amounts of past losses.
- Detailed payroll breakdowns by job classification.
- Current debt-to-equity ratio and a description of your safety and risk control programs.
- If the applicant is a subsidiary, a parental guarantee securing the subsidiary’s obligations, plus an organizational chart.
Filing fees are modest, generally from around $100 to over $1,000 depending on jurisdiction and whether you apply individually or as a group. After submission, state analysts cross-check your financials and often request more documentation. Expect the review to take several months. Approval produces a certificate authorizing you to operate without a commercial workers’ comp policy.
Self-Funded Health Plans Run on a Different Track
If you’re self-insuring employee health benefits, there is no state application to permit it. ERISA preempts state insurance regulation for self-funded plans, so a plan in Texas and one in New York operate under the same federal framework. You establish the plan with benefits counsel and typically a third-party administrator, then handle compliance under federal law.
The financial commitment is still substantial. You need cash flow to pay claims as they come in, and a single catastrophic claim can run into hundreds of thousands of dollars. Budget for claims processing, compliance reporting, and periodic actuarial reviews.
ACA Compliance
Self-insured employer health plans must follow most Affordable Care Act provisions: no annual or lifetime dollar limits on essential health benefits, preventive services without cost-sharing, dependent coverage to age 26. Any self-insured employer, regardless of size, files annual returns with the IRS reporting coverage for each covered employee.3IRS. Employers – Affordable Care Act
PCORI Fees
Plan sponsors pay the Patient-Centered Outcomes Research Institute fee annually through IRS Form 720. For plan years ending in the last quarter of 2025, the fee is $3.84 per covered life, due July 31, 2026. Modest per employee, but it adds up, and missing the deadline triggers penalties.
Form 5500
Self-funded health plans covering 100 or more participants at the start of the plan year file Form 5500 annually with the Department of Labor. Smaller unfunded plans that pay claims from general assets and cover fewer than 100 participants are generally exempt. Penalties for not filing can reach $1,100 per day.
Stop-Loss and Excess Insurance
Self-insuring doesn’t mean absorbing unlimited risk, and most organizations don’t. Workers’ comp self-insurers typically carry excess insurance, which some states explicitly require, covering individual claims above a chosen self-insured retention. Your retention level, your excess limits, and your financial strength all factor into whether regulators consider the program adequately funded.
For self-funded health plans, stop-loss insurance is technically optional under federal law but almost universal in practice. Specific stop-loss covers claims from a single individual once they exceed an attachment point. Aggregate stop-loss covers the plan when total claims for the year exceed a threshold set as a percentage of expected claims. The NAIC’s model standards establish minimum attachment points for both, with the aggregate threshold set at 110% of expected claims for groups of 51 or more.4NAIC. Stop Loss Insurance, Self-Funding and the ACA Many employers set their specific attachment point well above the minimum to keep premiums manageable while still protecting against catastrophic claims.
How Self-Insurance Reserves Are Taxed
This is where self-insurance costs you something commercial coverage doesn’t. A commercial premium is a deductible business expense in the year paid. Money you move into a self-insurance reserve is not. You deduct losses only when you actually pay a claim.
If you reserve $2 million this year for projected claims but pay out $800,000, you deduct $800,000. The remaining $1.2 million sits in your reserve generating no tax benefit until it’s paid to claimants. The timing hits hardest in the early years of a program, when you’re building reserves faster than claims are being paid.
Self-funded health plans work differently. Payments for employee medical claims deduct as ordinary business expenses under the same rules as any employee compensation cost. Watch the nondiscrimination rules under Section 105(h): a self-insured medical reimbursement plan can’t disproportionately favor highly compensated employees, or the excess reimbursements become taxable income to those employees.5eCFR. 26 CFR 1.105-11 – Self-Insured Medical Reimbursement Plan
Ongoing Compliance
Approval is the start, not the finish. Workers’ compensation self-insurers file annual reports with the state regulator detailing paid claims, outstanding reserves, future liabilities, payroll, and the claims reported during the year. A qualified claims administrator certifies the report. Even after you exit the program, filings continue until every claim is closed with no remaining liability.
Claims can be handled internally or through a licensed third-party administrator. Some states require new self-insurers to use a TPA for the first several years before allowing in-house administration. Either way, the administrator has to meet state licensing and competency standards, and audits will test the work.
Missed reports, inadequate security deposits, and poor claims administration trigger escalating fines and, eventually, certificate revocation. Some jurisdictions impose per-day penalties on late filings. A forced return to the commercial market after revocation is expensive, and insurers know why you’re there.
Getting Out Is Harder Than Getting In
When you stop self-insuring for workers’ compensation, you don’t walk away from open claims. Every claim open at termination stays your responsibility until fully resolved, which for serious injuries can run for decades. Your security deposit stays with the state until all claims are discharged, and regulators can require additional security if they decide remaining liabilities aren’t adequately covered.
You can transfer claim liabilities to another entity or to an insurance carrier, but only with regulatory approval. The receiving entity has to post its own security deposit and agree to administer claims under state standards. If liabilities are transferred to a carrier through an excess workers’ compensation policy without a performance bond, expect the state to hold your original security deposit for at least three years before considering release.
A voluntary termination plan explains how you’ll reserve assets for remaining claims, continue filing required reports, and respond to regulatory inquiries about your financial condition. The regulator keeps authority over runoff and can demand updated actuarial evaluations at any point. Plan for the exit before you need to execute it.
When Self-Insurance Is Worth It
Self-insurance pays off for organizations with predictable loss patterns, strong cash reserves, and the administrative capacity to manage claims properly. You keep the underwriting margin that would otherwise go to an insurer, you control the claims process, and for health plans, ERISA preemption frees you from a patchwork of state mandates. Large employers benefit most because their claims experience is statistically credible enough to project.
The downsides are real too. You absorb volatility an insurer would otherwise smooth. A single catastrophic workers’ compensation claim or a cluster of high-cost health claims can blow through projections. The tax timing disadvantage on reserves ties up capital without an immediate deduction. And the compliance burden is permanent: annual reports, actuarial updates, security deposit adjustments, and the ongoing risk of penalties if something slips. Organizations that self-insure successfully treat it as a core operational function with dedicated staff, not a side assignment for the CFO’s office.