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What is ERISA?

PensionBee

May 19, 2026

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7 minute read

Updated on:

May 27, 2026

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Summary

The Employee Retirement Income Security Act of 1974 (ERISA) is the federal law that forms the foundation for most private-sector, employer-sponsored retirement plans.

ERISA Compliance Guide for Plan Sponsors: Fiduciary Duties, Requirements & Safe Harbor IRAs

ERISA is the federal law governing most private-sector, employer-sponsored retirement plans in the United States. Enacted in 1974 and jointly enforced by the Department of Labor (DOL) and the IRS, it establishes minimum standards for plan governance, fiduciary responsibilities, participant protections, and disclosure requirements. While ERISA does not require employers to offer retirement plans, any plan they do sponsor must comply with its standards.

The law defines how retirement plans must be administered and outlines the legal obligations of plan fiduciaries. For HR directors, benefits managers, and plan administrators, a working understanding of ERISA provides the foundation for effective risk management and sound plan oversight.

How ERISA Works

ERISA requires fiduciaries to act in the best interest of participants by:

  • Following plan documents
  • Monitoring investments, fees, and service providers
  • Ensuring clear participant disclosures
  • Maintaining compliance with administrative and governance requirements

Who Is Subject to ERISA?

Most private-sector retirement plans are covered by ERISA. It generally does not apply to:

  • Government plans (federal, state, or local)
  • Church plans for its employees
  • Plans created solely to comply with workers' compensation, unemployment, or disability laws
  • Plans maintained outside the United States primarily for nonresident aliens
  • Unfunded deferred compensation (commonly called “top-hat plans”) plans for select, highly compensated employees
  • Individually established IRAs

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Overall, ERISA is designed to:

  • Protect plan participants
  • Ensure transparency in plan operations
  • Hold fiduciaries accountable

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These requirements guide plan administration, oversight, and the allocation of fiduciary responsibilities.

Why ERISA Compliance Matters

ERISA sets the standard for fiduciary discipline and defensible decision-making for the management and operation of employee benefit plans. In an environment where plan fees, investment options, and participant outcomes are under increasing regulatory and legal scrutiny, ERISA provides the framework for evaluating every decision and action a plan sponsor takes.

Key expectations include:

  • Demonstrating sound processes, not just focusing on outcomes
  • Maintaining clear documentation of all decisions
  • Acting solely in the best interest of participants

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Failing to meet these standards can result in DOL investigations, regulatory penalties, litigation,  and reputational damage. Following ERISA’s framework protects participants and strengthens the integrity of retirement plans.

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Core ERISA Responsibilities

1. Fiduciary Duty

ERISA places fiduciary responsibility at the center of plan governance. Anyone with discretionary authority over a plan or its assets, or who provides investment advice for a fee, is a fiduciary. Fiduciaries should follow four fundamental standards:

  • Duty of Loyalty: Act solely in the interest of participants and beneficiaries, avoiding self-interest and focusing on providing plan benefits while paying only reasonable expenses.
  • Duty of Prudence: Exercise care, skill, and diligence a prudent person would use in similar circumstances, including both selecting and monitoring investments.
  • Duty to Diversify Investments: Reduce the risk of large losses by diversifying plan assets, unless non-diversification is clearly prudent.
  • Duty to Follow Plan Documents: Comply with plan rules, as long as they align with ERISA requirements.

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All fiduciary actions must be prudent, loyal to participants’ interests, well-documented, and consistent with these standards

2. Investment Oversight and Monitoring

Fiduciaries have a continuing duty to monitor investments, not just at the time of selection. Key practices include:

  • Investment Policy Statement (IPS): Establish and review regularly to guide investment decisions.
  • Performance and Fees Monitoring: Track investment performance, evaluate fees, and benchmark against peers.
  • Managing Underperformance: Replace investments that are underperforming or otherwise imprudent. 

3. Fee Transparency and Reasonableness

Fiduciaries must ensure that all plan-related fees, including recordkeeping, investment management, and advisory, are clearly disclosed and reasonable relative to the services provided. Failure to benchmark fees regularly is one of the most common triggers for ERISA litigation.

4. Participant Disclosure Requirements

ERISA requires participants to receive clear, timely, and accurate information about their retirement plans. This includes:

  • Summary Plan Description (SPD): Explains plan features, benefits, eligibility rules, and participant rights
  • 404a-5 disclosures: Provides details on fees, investment costs, historical performance, and risk characteristics. 
  • Form 5500: An annual report filed with the DOL that discloses the plan's financial condition, investments, and operations. It's a primary tool DOL investigators use to identify compliance issues.

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These disclosures give participants the information needed to manage their retirement accounts effectively and give regulators visibility into plan operations.

5. Plan Governance and Documentation

Strong governance provides the structure that supports fiduciary responsibilities and ensures compliance with ERISA. Key best practices include:

  • Structured committee roles: Clearly define responsibilities for fiduciaries, committees, and plan administrators.
  • Document decisions: Keep clear, comprehensive records of committee meetings, key determinations, and actions, following established processes to demonstrate consistent fiduciary compliance.
  • Regular plan reviews: Periodically evaluate investments, fees, and service providers to ensure proper performance and compliance.
  • Maintain current plan documents: Keep all plan documents, policies, and procedures complete, up to date, and readily accessible to support proper administration and compliance.

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Undocumented actions cannot demonstrate fiduciary compliance. A reliable record of prudent, participant-focused decisions is your primary line of defense in a DOL audit or participant lawsuit. 

Understanding and Managing ERISA Risks

Even with strong governance, plans can face ERISA-related risks. Understanding these risks helps fiduciaries apply best practices to prevent issues and maintain compliance. 

Here's a breakdown of the most common ones and how to address them: 

Risk Impact How to Mitigate
Excessive fees Quietly erodes participant returns over time Benchmark fees annually; renegotiate when costs aren't justified
Inadequate monitoring Problems go unnoticed, affecting performance Build structured review cycles for investments and service providers
Lack of documentation Reduces accountability, creates audit exposure Maintain detailed records of all plan decisions and processes
Conflicts of interest Biases can subtly influence decisions Proactively review relationships and disclosures
Terminated employee account backlog Fiduciary liability for small-balance distributions Use an automatic rollover IRA solution to comply with SECURE 2.0

ERISA Compliance Checklist for Plan Sponsors

Use this as a baseline to evaluate your plan's compliance posture:

  •  Fiduciary roles and committee responsibilities are documented and current
  •  An Investment Policy Statement is in place and reviewed at least annually
  •  Investment performance and fees are benchmarked at least annually
  •  404a-5 disclosures are delivered to participants on schedule
  •  Summary Plan Description is current and accessible to participants
  •  Form 5500 is filed accurately and on time with the DOL
  •  Committee meeting minutes are documented for every material decision
  •  Conflicts of interest are identified and disclosed
  •  Service provider contracts are reviewed for fee reasonableness
  •  Terminated employee accounts under $7,000 are managed in compliance with SECURE 2.0

Managing Terminated Employee Accounts: ERISA and SECURE 2.0

Under ERISA and the SECURE 2.0 Act of 2022, plan sponsors may include provisions allowing them to involuntarily distribute small account balances (up to $7,000) for terminated employees who fail to respond to distribution notices. Adoption of this provision is optional. For balances between $1,000 and $7,000, the distribution may be made as an automatic rollover to an IRA (often structured to meet DOL safe harbor requirements), while balances of $1,000 or less may be cashed out directly.

For businesses managing large volumes of terminated employee accounts, this is one of the most persistent ERISA compliance burdens. Handled incorrectly, it creates fiduciary liability, plan audit risk, and real harm to former employees whose retirement savings can end up in high-fee, poorly managed accounts.

PensionBee's automatic rollover solution handles this process end to end: locating terminated participants, processing distributions into a Safe Harbor IRA in accordance with DOL requirements, and taking the administrative burden off your HR team entirely.

Frequently Asked Questions (FAQs)

What is ERISA?

The Employee Retirement Income Security Act of 1974 (ERISA) is a federal law that sets standards for most private-sector, employer-sponsored retirement plans. It governs plan structure, oversight, fiduciary duties, and participant protections.

Who is subject to ERISA?

ERISA generally applies to private-sector retirement plans. It does not cover government or church plans, plans solely for workers’ compensation/unemployment/disability, unfunded deferred compensation (“top-hat”) plans, or individually established IRAs.

What is a fiduciary under ERISA?

A fiduciary is anyone with discretionary authority over a plan or its assets, or who provides investment advice for a fee. Fiduciaries are required to act in the best interest of participants and follow strict duties of loyalty, prudence, diversification, and adherence to plan documents.

What are the core fiduciary duties under ERISA?

The core fiduciary duties under ERISA are:

  • ‍Duty of Loyalty: Act solely in the interest of participants and beneficiaries, avoiding self-interest and focusing on providing plan benefits while paying only reasonable expenses.‍
  • Duty of Prudence: Exercise care, skill, and diligence a prudent person would use in similar circumstances, including both selecting and monitoring investments.‍
  • Duty to Diversify Investments: Reduce the risk of large losses by diversifying plan assets, unless non-diversification is clearly prudent.‍
  • Duty to Follow Plan Documents: Comply with plan rules, as long as they align with ERISA requirements.

What are the basic ERISA requirements for plan sponsors?

ERISA generally requires plan sponsors to act prudently and in the best interest of participants, including appointing and monitoring fiduciaries, providing required participant disclosures such as a Summary Plan Description (SPD) and 404a-5 disclosures, filing Form 5500 annually with the Department of Labor, and maintaining appropriate governance and documentation to support fiduciary decisions.

How are investments monitored under ERISA?

Fiduciaries should continuously monitor investments. This includes establishing an Investment Policy Statement (IPS), reviewing performance and fees, and replacing underperforming or imprudent investments.

What are the fee requirements under ERISA?

All plan-related fees, recordkeeping, investment management, and advisory must be disclosed clearly and be reasonable relative to the services provided.

What is a Safe Harbor IRA under ERISA? 

A Safe Harbor IRA is an individual retirement account used to receive distributions from retirement plans for terminated employees with small account balances (under $7,000). Under ERISA and SECURE 2.0, plan sponsors may roll these balances into Safe Harbor IRAs rather than distributing them as cash.

What happens if a plan fails ERISA compliance? 

Non-compliance can result in DOL investigations, excise taxes, prohibited transaction penalties, participant lawsuits, and in severe cases, plan disqualification. The most common triggers are fee-related lawsuits, inadequate documentation, and mishandled distributions for terminated employees.

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