Glossary term
Multiple Employer Plan (MEP)
A multiple employer plan is a retirement plan maintained by two or more unrelated employers, often to share administration and plan costs.
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What Is a Multiple Employer Plan (MEP)?
A multiple employer plan, or MEP, is a retirement plan maintained by two or more employers that are not treated as one related employer. The employers participate in a shared plan structure rather than each maintaining a completely separate plan.
MEPs are used to pool administration, investment access, service providers, and compliance work. They can reduce friction for smaller employers, but the plan still has to satisfy retirement plan qualification, reporting, fiduciary, and operational rules.
Key Takeaways
- A MEP covers employees of more than one unrelated employer.
- It is different from a multiemployer plan maintained under collective bargaining arrangements.
- A pooled employer plan, or PEP, is a newer type of open MEP.
- Participating employers still need to understand their responsibilities and the plan’s design.
How the Shared Plan Structure Works
In a single-employer plan, one employer sponsors the plan for its own workforce. In a MEP, multiple employers participate under one plan arrangement. The plan may have a common sponsor, provider, or professional employer organization structure, depending on the type of MEP.
Plan type | Basic structure |
|---|---|
Single-employer plan | One employer maintains the plan for its employees. |
Multiple employer plan | Two or more unrelated employers participate in one retirement plan. |
Pooled employer plan | An open MEP administered by a pooled plan provider under SECURE Act rules. |
Multiemployer plan | Usually a collectively bargained plan involving employers in the same industry or union context. |
Employer Control and Responsibility
A MEP can make plan administration more efficient, but it does not erase employer responsibility. Employers need to understand fees, eligibility, contribution rules, investment options, payroll integration, employee communication, and who serves as fiduciary for which decisions.
The shared structure can also limit customization. An employer may accept a standardized plan design in exchange for lower administrative burden or access to provider scale.
Where MEPs Fit
MEPs are especially relevant for small and midsize employers that want to offer retirement benefits but do not want to manage every plan function alone. The practical question is whether the shared arrangement improves cost, quality, compliance support, and employee experience compared with a standalone plan.
Compliance and Reporting Details
MEPs can simplify some administrative functions, but they also create coordination issues. Participating employers may have different payroll systems, workforces, eligibility patterns, and contribution formulas. The plan sponsor and service providers need reliable data from each employer for testing, contributions, notices, loans, distributions, and Form 5500 reporting.
Employers should also distinguish a MEP from a multiemployer pension plan. The names are similar, but multiemployer plans are usually collectively bargained arrangements with different funding and benefit rules.
The Bottom Line
A multiple employer plan is a shared retirement plan for unrelated employers. It can reduce administrative burden and improve scale, but employers still need to evaluate costs, fiduciary roles, plan quality, and employee fit.