For many employers—especially small and mid-sized organizations—the Pooled Employer Plan (PEP) has emerged as a practical way to offer a competitive retirement benefit while reducing administrative burden. Introduced by the SECURE Act, PEPs are https://jsbin.com/gorexevike designed to simplify retirement plan administration by allowing unrelated employers to participate in one consolidated plan administration model. But the promise of simplification raises an important question: Who owns what in a PEP? Understanding roles, responsibilities, and liability is essential to making an informed decision.
Below, we break down the key players, clarify fiduciary oversight, and compare how PEPs differ from traditional 401(k) plan structure and Multiple Employer Plan (MEP) models. We’ll also address what employers still own, even when they join a PEP.
The core structure of a PEP
A PEP is a single retirement plan that multiple unrelated employers can join. Its hallmark is the central role of a registered Pooled Plan Provider (PPP), which serves as the plan’s primary fiduciary and operational orchestrator. Where traditional single-employer 401(k) plans place the bulk of ERISA compliance and plan governance on the sponsoring employer, a PEP allocates many of those duties to the PPP and other designated fiduciaries under a unified structure.
Key players and their roles
- Pooled Plan Provider (PPP): The PPP is the linchpin. It registers with the Department of Labor and the Treasury and is responsible for ensuring the PEP is established and operated in compliance with ERISA and the Internal Revenue Code. The PPP typically handles consolidated plan administration, engages and oversees service providers, ensures required filings (such as Form 5500 for the overall plan), and sets and maintains the plan’s foundational documents and operating procedures. In many designs, the PPP also serves as a named fiduciary and plan administrator for ERISA purposes. Participating employers (adopting employers): Employers that join the PEP adopt the plan and become responsible for specific employer-level duties. These commonly include timely and accurate remittance of employee deferrals, validating employee eligibility, providing required payroll and census data, and executing employer elections within the plan’s boundaries (e.g., match formula selections if permitted, auto-enrollment defaults, and waiting periods). Employers retain fiduciary responsibility for the prudent selection and ongoing monitoring of the PEP and the PPP, much like hiring any other plan provider. 3(38) investment manager and/or 3(21) investment advisor: Many PEPs appoint a discretionary ERISA 3(38) investment manager to build and manage the investment lineup, taking on fiduciary responsibility for investment selection and monitoring. Some PEPs use a 3(21) advisor who provides recommendations but not discretion. This can significantly reduce investment-related fiduciary risk for employers compared to a standalone 401(k) plan structure where employers often own these decisions. Named fiduciaries and administrative committees: Depending on the design, the PPP or an appointed committee acts as the plan’s named fiduciary and plan administrator. This centralizes fiduciary oversight and plan governance processes—claims adjudication, QDRO processing, loan and distribution approvals, and correction protocols—within the PEP framework. Recordkeeper, custodian, and auditor: The PEP uses a single recordkeeping system and custodian, streamlining operations and enabling consolidated plan administration. The plan itself is typically subject to a single audit at the plan level, which can lower costs relative to multiple separate audits for large single-employer plans.
What employers still “own” in a PEP
Joining a PEP offloads many technical and operational responsibilities, but employers retain critical duties:
- Prudent selection and monitoring: Employers must prudently select the PEP and the PPP. This is a fiduciary act under ERISA and includes reviewing fees, services, performance, governance controls, and service provider contracts. Ongoing monitoring is required—documented reviews, benchmarking, and periodic due diligence are best practices. Payroll and data accuracy: Employers remain responsible for accurate eligibility determinations, deferral and loan repayments, and timely remittance of contributions. Late deposits, incorrect census data, or misapplied deferrals can still create employer-level compliance issues. Adopting employer elections: Within the PEP’s parameters, employers may choose features (auto-enroll rates, employer match formulas, eligibility schedules). Employers own those elections and should confirm they align with company goals and budget. Participant communications at the employer level: While many disclosures are centralized by the PPP, employers may need to distribute or facilitate certain notices, ensure access to materials, and respond to employee questions about employer-specific policies and payroll impacts.
Liability and fiduciary oversight in practice
A central reason employers consider PEPs is liability reduction. By design, the PPP assumes substantial fiduciary oversight, taking on plan-level responsibilities that normally rest with each employer in a standalone plan. When a 3(38) investment manager is engaged, investment selection and monitoring liability also shifts away from the employer. This is a meaningful contrast with traditional 401(k) plan structure, where employers often act as plan administrator and named fiduciary.
However, liability is not eliminated. Employers remain fiduciaries for selecting and monitoring the PEP and PPP and for employer-controlled functions (e.g., payroll remittances). If an employer fails to deposit deferrals timely or provides incomplete data, the employer can be liable for corrections and penalties—even within a PEP.
PEP vs. MEP vs. single-employer 401(k)
- Single-employer 401(k): The employer owns plan governance, ERISA compliance, investment oversight (unless delegated), and filings. High control, high responsibility. Multiple Employer Plan (MEP): Historically used by related employers or associations, MEPs also centralize functions, but legacy “bad apple” rules created cross-employer risk. The SECURE Act eased those concerns for PEPs, which allow unrelated employers to join while isolating compliance failures to the responsible employer where possible. Pooled Employer Plan (PEP): Built for unrelated employers, with the PPP as the designated plan administrator and named fiduciary. Consolidated plan administration and centralized fiduciary oversight reduce complexity and often costs. Employers retain prudence in selection and monitoring, plus payroll/data responsibilities.
Plan governance and ERISA compliance in a PEP
Well-run PEPs formalize governance through charters, service-level standards, and clear fiduciary appointment documents. Best practices include:
- Detailed service agreements with the PPP and investment fiduciaries Documented review of fees, performance, and operational metrics Standardized operational calendars for filings, audits, and required notices Clear escalation paths for errors, with written correction procedures Regular training for employer payroll and HR teams on data requirements
This governance framework helps ensure ongoing ERISA compliance, efficient retirement plan administration, and a predictable participant experience.
Costs and efficiencies
Because PEPs aggregate assets and processes, they can offer pricing efficiencies on recordkeeping, investments, and audit services. Employers can avoid separate Form 5500 filings and audits, as these are handled at the plan level by the PPP. At the same time, employers should benchmark total plan costs (including PPP fees) and evaluate service scope to ensure value relative to a single-employer plan or a well-structured MEP.
When a PEP is a good fit
A PEP may be ideal if you want:
- Turnkey operations with centralized fiduciary oversight Reduced administrative load on internal staff Lower audit and filing complexity via consolidated plan administration A consistent participant experience across locations or entities
It may be less ideal if you require highly customized plan design or investment menus beyond what the PEP’s standardized framework allows.
Action steps for employers evaluating a PEP
- Define objectives: Clarify goals for cost, risk reduction, participant outcomes, and administrative simplicity. Assess PPP credentials: Review registration status, experience, litigation/arbitration history, staffing, and technology. Understand fiduciary allocations: Identify who serves as named fiduciary, plan administrator, and 3(38)/3(21) provider. Scrutinize operations: Validate payroll integration, data requirements, error correction processes, and participant service model. Benchmark costs and services: Compare to a standalone 401(k) and to MEP options. Document the decision: Maintain minutes, analyses, and ongoing monitoring files to substantiate prudence.
Questions and answers
Q1: Does joining a PEP eliminate my fiduciary liability? A1: No. It shifts much of the plan-level fiduciary oversight to the PPP and investment fiduciary, but you remain responsible for prudently selecting and monitoring the PEP/PPP and for employer-level tasks like payroll remittances and data accuracy.
Q2: Who files Form 5500 in a PEP? A2: The PPP (as plan administrator) typically files a single Form 5500 for the entire PEP, and the plan undergoes one plan-level audit if required, reducing employer filing obligations.
Q3: Can I customize plan features in a PEP? A3: Often yes, within the PEP’s design parameters. Employers may choose items like match formulas or auto-enrollment rates, but extreme customization is limited to preserve operational efficiency.
Q4: How do PEPs differ from MEPs? A4: PEPs, enabled by the SECURE Act, allow unrelated employers to join under a PPP with centralized governance and aim to isolate employer-specific compliance failures. MEPs historically focused on related employers or associations and had more complex cross-employer risk dynamics.
Q5: What should I review when selecting a PPP? A5: Verify registration, fiduciary roles, governance processes, service commitments, error correction protocols, technology and payroll integrations, total fees, investment oversight structure, and references or performance history.