MEWAs: The Pooling Mechanism That Could Solve the Micro-Employer Problem If the Regulation Allowed It

A multiple employer welfare arrangement allows unrelated employers to pool their employees for benefits under a single plan. The MEWA structure is the most direct regulatory mechanism available for aggregating micro-employers into a pool large enough for the actuarial math to work. The arithmetic is simple: combine 30 employers with 8 employees each and cover 240 people; at that scale, the variance that makes individual micro-employer plans actuarially unstable is reduced. The stop loss underwriting problem below 10 lives, addressed in LFP-02.08, is a problem of insufficient pool size. MEWAs solve the pool size problem by construction.

The regulatory reality is that MEWAs are among the most heavily supervised structures in employer benefits, for reasons grounded in a documented history of fraud and insolvency that harmed real employers and employees. Understanding why the regulation is what it is requires understanding where it came from. Understanding what the path forward looks like requires separating the legitimate structural opportunity from the fraudulent operators that produced the restrictive environment.

The MEWA Definition and Its Regulatory Consequences

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ERISA Section 3(40) defines a multiple employer welfare arrangement as an employee welfare benefit plan that provides benefits to the employees of two or more employers, including one or more self-employed individuals. The critical exclusion: a plan maintained pursuant to a collective bargaining agreement is not a MEWA. Plans within a controlled group of employers, where the employers have 25 percent or more common ownership, are also excluded.

The dual federal-state regulatory exposure is the defining structural feature. Under ERISA’s general preemption framework, state laws relating to employee benefit plans are preempted. MEWAs are an explicit exception. ERISA Section 514(b)(6) preserves state authority to regulate MEWAs, including both fully insured MEWAs and the insurance components of self-funded MEWAs. A self-funded MEWA must comply with ERISA’s Title I requirements applicable to employee welfare benefit plans and with applicable state insurance laws. This is unusual: most self-funded ERISA plans operate outside state insurance regulation through ERISA preemption. MEWAs do not.

The Form M-1 reporting requirement operationalizes federal oversight. Under 29 CFR 2520.101-2, the administrator of a MEWA offering medical benefits must register with the DOL before operating in any state and file an annual Form M-1 by March 1 following each calendar year of operation. The M-1 must be filed electronically through the DOL’s EBSA system. Failure to file exposes the administrator to civil penalties of up to $1,746 per day as of current inflation-adjusted amounts, without any voluntary compliance program available for delinquent filers. The DOL can also issue cease and desist orders against MEWAs engaging in fraudulent conduct under ERISA Section 521, added by the Affordable Care Act.

The History That Shaped the Regulation

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The restrictions on MEWAs were not designed arbitrarily. A 1992 report from the General Accounting Office, titled “States Need Labor’s Help Regulating Multiple Employer Welfare Arrangements,” documented a pattern of MEWA fraud and abuse that produced substantial harm to enrolled employers and their employees. Operators established MEWAs, collected premiums from small employers, and then failed to pay claims when funds were exhausted or diverted. Employers and employees who thought they had coverage discovered they did not when claims were denied and the MEWA operator was insolvent or had disappeared.

The 1983 MEWA amendments to ERISA, which created the explicit state regulatory authority over MEWAs, were a direct response to this failure pattern. Congress recognized that fully insured MEWAs could be regulated by state insurance departments with the same tools available for other insurance products, including licensing, capital requirements, and solvency oversight. Self-funded MEWAs presented a harder regulatory problem: ERISA preemption would normally block state insurance regulation, but allowing self-funded MEWAs to operate outside state oversight while collecting premiums from multiple small employers created the conditions for the fraud that the GAO documented. The 1983 amendments carved out MEWAs from ERISA’s general preemption of state insurance laws.

The ACA added additional enforcement tools specifically because MEWA fraud remained a persistent problem decades after the 1983 amendments. Criminal penalties under ERISA Sections 501(b) and 519 now apply to false statements in connection with MEWA marketing or reporting. The DOL has documented ongoing enforcement actions against fraudulent MEWAs in its annual enforcement reports. The regulatory architecture reflects the enforcement reality.

The State-Level Regulatory Map

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States regulate MEWAs independently of each other and of the federal ERISA framework, within the space ERISA Section 514(b)(6) preserves. State MEWA regulation varies across three dimensions.

Registration requirements differ. Some states require separate state registration for MEWAs operating within their borders, creating a multi-state filing burden for MEWAs operating nationally. The federal Form M-1 does not substitute for state registration requirements where states maintain them separately.

Funding requirements differ. Some states permit self-funded MEWAs under specific conditions, including capital adequacy requirements, reserve minimums, actuarial certification of solvency, and ongoing financial reporting. Other states require that MEWAs operating within their borders be fully insured through a licensed carrier, effectively prohibiting self-funded MEWA formation for groups covering residents of those states.

Benefit requirements differ. States can impose benefit mandates on the insurance components of MEWAs. A self-funded MEWA is not subject to state benefit mandates on its self-funded layer (ERISA preempts state regulation of the self-funded component), but the stop loss insurance covering the MEWA is subject to state regulation in the state where it is written. The interaction between state benefit mandates, state stop loss regulation, and the MEWA’s self-funded layer creates regulatory complexity that varies by state combination.

A MEWA operating across multiple states must navigate each state’s individual requirements. A national MEWA administrator must understand which states permit self-funded MEWAs, which require full insurance, what registration forms each state requires, and how each state’s requirements interact with the federal Form M-1 and ERISA’s framework. This complexity is a genuine barrier to formation and a genuine compliance cost for legitimate operators.

Why Legitimate MEWAs Are Difficult to Form

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The fraud history and the regulatory response have created an environment where even legitimate MEWA formation faces substantial operational barriers that individual small employers cannot easily overcome.

Legal and actuarial formation costs are real. Establishing a self-funded MEWA requires benefits counsel to analyze ERISA compliance, state-by-state regulatory requirements, plan document drafting, and trust or entity formation for the pooling mechanism. Actuarial analysis must establish that the pool has sufficient expected size and credibility for sound underwriting. Stop loss must be secured at terms appropriate for the pool’s demographic and health profile. Formation costs for a legitimately structured self-funded MEWA can run $100,000 to $250,000 or more before the first employer member enrolls. No individual micro-employer can absorb this cost. A TPA or association sponsor must absorb it, recovering through ongoing administrative fees.

Ongoing compliance costs are continuous. The annual Form M-1, state registration renewals, actuarial certifications of funding adequacy, and state-specific financial reporting requirements impose costs that do not scale down with pool size. A MEWA covering 50 micro-employers faces roughly the same compliance cost structure as one covering 500.

Adverse selection risk is structural. If MEWA membership is voluntary and competing fully insured options are available, the employers most likely to join the MEWA are those whose employees have health conditions that make insurance expensive. Healthier employer groups stay in the fully insured market where their favorable experience subsidizes others. The MEWA ends up with the risk the commercial market priced out. This adverse selection dynamic undermines the financial projections that justified formation. Mandatory-membership structures, where all employers in a qualifying category must join, reduce adverse selection but raise legal and practical barriers to implementation.

The Path Forward

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What would need to change for MEWAs to reach the micro-employer market at scale?

Federal regulatory reform that distinguishes between legitimate pooling mechanisms and the fraudulent operators that produced the current restrictions is the core requirement. Existing tools, including Form M-1 reporting, cease and desist authority under ERISA Section 521, and criminal penalties under Sections 501(b) and 519, were designed for enforcement after fraud occurs. Pre-formation screening mechanisms, actuarial review requirements before operation begins, and capital adequacy standards calibrated to pool size rather than set at levels that exclude legitimate small-market MEWAs would reduce fraud while creating a viable path for legitimate formation.

Federal ERISA preemption clarity for self-funded MEWAs would remove the state-by-state regulatory variation that makes multi-state MEWA formation prohibitively complex. A federal solvency framework for self-funded MEWAs, analogous to ERISA’s own funding requirements for pension plans, could replace the patchwork of inconsistent state requirements while maintaining the consumer protection rationale behind state oversight.

Alternatively, captive structures offer a path to similar outcomes with a more developed regulatory framework. Domicile-state captive statutes in Vermont, Utah, Tennessee, and Delaware provide regulatory infrastructure for employer risk-sharing that is more mature than the MEWA path and carries a history of legitimate use in the mid-market that MEWAs do not have at small group sizes. (See LFP-08.07 for the captive analysis.)

The structural argument for MEWA-based micro-employer pooling is sound. The problem the micro-employer market faces is precisely the problem MEWAs exist to solve. The regulatory environment that prevents MEWAs from solving it was created by legitimate enforcement concerns. Resolving the tension requires regulatory design that addresses both simultaneously.

The State Regulatory Map

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The state-by-state variation in MEWA regulation is not incidental complexity. It determines where a self-funded MEWA can legally operate and at what compliance cost.

States cluster into three categories. The permissive group includes Texas and Oklahoma, which have established licensing frameworks for self-funded MEWAs that, while requiring certificates of authority and solvency compliance, do not prohibit formation outright. Texas HB 290, enacted in 2023 and effective January 1, 2024, expanded that state’s MEWA framework to allow geographic association as a basis for formation, permit working owner participation, and authorize MEWAs to offer comprehensive health benefit plans structured as PPO or EPO networks. This expansion mimics elements of the 2018 federal AHP rule at the state level, and TDI’s implementing regulations took effect in 2024. Arkansas, similarly, implemented Rule 119 in 2019 establishing licensing standards and financial solvency requirements for self-insured MEWAs, citing alignment with neighboring Texas and Oklahoma.

The restrictive group includes California and Colorado, which have effectively prohibited new self-funded MEWAs from operating in their states. The NAIC’s compendium of state MEWA laws, updated through 2024, documents states across this spectrum. Washington requires a certificate of authority from the state Insurance Commissioner, imposes a $200,000 solvency deposit requirement for self-funded MEWAs, and historically required the MEWA to have been in active operation for at least 10 years prior to application, a requirement that effectively grandfathered existing MEWAs while blocking new formation. Connecticut requires self-funded MEWAs to operate with state authorization or licensure and subjects fully insured MEWAs to small group rating requirements, which largely defeats the commercial purpose of the fully insured MEWA model.

The patchwork group (most states) has adopted the NAIC’s model act framework with variations. These states typically require MEWAs to file for certificates of authority, meet minimum solvency standards, restrict eligibility to trade or industry associations with legitimate organizational purposes, and submit to periodic examination. Compliance requirements across this middle tier are manageable for a well-organized legitimate MEWA but create meaningful formation costs.

The practical consequence of this map for a TPA: a self-funded MEWA that wants to operate nationally faces inconsistent state requirements that may require different capital structures, filing timelines, and regulatory relationships in different states. A MEWA operating only in Texas, Oklahoma, and a handful of permit-issuing states can be structured specifically for those jurisdictions. A TPA whose employer clients are concentrated in California, New York, or other restrictive states cannot serve them through a self-funded MEWA regardless of how sound the product design is.

This geography overlaps with the level funded regulatory map in LFP-07.02. States hospitable to self-funded MEWAs, particularly Texas, Oklahoma, and the southern and central states, are generally the same states where level funded itself has the most traction. The competitive markets where MEWAs could address the micro-employer pooling problem are often the same markets where level funded already works, which limits the additive value the MEWA model provides in those states. In restrictive states where fully insured dominates and level funded faces regulatory friction, MEWAs are also blocked. The MEWA’s path to scale requires either federal preemption clarity or state-by-state regulatory reform in the states where the product would make the most competitive difference.