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Employee Benefits Attorney Explains 401(K) Fiduciary Reviews

Practice Area:Corporate
Jurisdiction:Federal

An employee benefits attorney can assess whether 401(k) fiduciaries use a prudent process to select investments and monitor plan fees under ERISA.

For HR leaders, the first step is identifying who actually exercises fiduciary authority over plan decisions. Investment comparisons, service provider disclosures, and committee minutes can show how those decisions were evaluated. Records support ongoing oversight, but documentation alone does not establish ERISA compliance.



1. Responsibility for 401(K) Decisions Follows Actual Authority


Start by identifying who could act for the plan. ERISA generally covers private-sector retirement plans, while governmental and qualifying church plans are excluded. HR should map decision-making authority before assessing fiduciary conduct.


Fiduciary Status Depends on the Function Performed

Under ERISA § 3(21)(A), discretionary management or administrative authority can create fiduciary status. Control over plan assets can do so even without discretion. Establishing or amending a plan is generally a business decision; selecting investments for it is fiduciary conduct. A named fiduciary and someone exercising functional control may both carry legal duties. This distinction guides responsibility under ERISA law.

Mapping Duties Across HR, Committees, and Providers

Review the plan document, appointments, committee charter, and provider contracts. Identify who selects funds, approves fees, and can replace providers. HR staff arranging meetings may not be investment fiduciaries; executives exercising discretion may be. Properly appointing an investment manager can transfer investment discretion, but the appointing fiduciary must prudently select and monitor that manager. The review should identify who receives reports and investigates emerging concerns.


2. Investment Reviews Must Examine Decisions, Not Just Returns


ERISA § 404(a)(1) requires loyalty, prudence, diversification where applicable, and reasonable expenses. Under 29 C.F.R. § 2550.404a-1, fiduciaries must consider relevant circumstances and alternatives. Poor returns alone do not prove a breach; strong returns do not excuse an imprudent process.


Comparing Funds with Appropriate Alternatives

Compare options with similar objectives, risks, and time horizons. Review expense ratios, benchmarks, strategy changes, and each fund’s role in the menu. A cheaper fund may carry different risks. Explain why the committee selected or retained an option instead of merely rating its performance satisfactory. For a proposed replacement fund, compare how its fees and risk exposure would affect participants.

Responding to Changes after Selection

Review reports at intervals suited to the plan and investigate material changes in performance, fees, or strategy. ERISA sets no universal quarterly committee schedule. If an option remains despite concerns, minutes should identify the evidence, alternatives, reasons, and next review date. A period of weak returns may merit investigation without requiring an automatic sale.


3. Plan Fee Reviews Must Match Price to Services


The lowest bid is not necessarily the most reasonable. Fiduciaries must assess total compensation alongside the services delivered. Comparing actual costs and quality is central to employee benefits plan governance.


Comparing Proposals on Equal Terms

Give competing recordkeepers identical participant counts, asset figures, and service requirements. Compare administration, participant support, cybersecurity practices, reports, and termination charges. Separate bundled costs from extra fees and determine whether the employer or participant accounts pay them. Asset-based, per-participant, and transaction fees can produce different costs as enrollment changes. A higher-priced provider may be reasonable when the committee records why its services justify the cost.

Checking Direct and Indirect Compensation

Under 29 C.F.R. § 2550.408b-2(c)(1), covered providers must disclose specified services and compensation in writing. Check revenue sharing, affiliate payments, and other indirect compensation. Match disclosures against contracts and invoices. Coverage depends on the plan and provider, not merely the vendor’s title. If required details are missing, request them and follow the applicable regulatory procedures.


4. Conflicts and Prohibited Transactions Need Separate Analysis


Diagram: Process flow showing four sequential steps: examine relationships, assess party status, test exemptions, and record findings.
Diagram: Process flow showing four sequential steps: examine relationships, assess party status, test exemptions, and record findings.

ERISA § 406 restricts certain party-in-interest transactions and fiduciary self-dealing. Reasonable pricing alone may not resolve those restrictions. Identify the parties, financial benefits, and any applicable exemption before approving or renewing a contract.


Identifying the Relationship and Financial Benefit

Examine affiliate payments, referral arrangements, and decision-makers with provider ties. Determine whether the counterparty is a party in interest and whether the transaction implicates plan assets or fiduciary authority. Disclosure or recusal does not independently exempt a prohibited transaction. Record the ownership and compensation ties even when the committee concludes that an exemption is available.

Testing Service Arrangements against Exemption Conditions

ERISA § 408(b)(2) allows certain necessary services under reasonable contracts for reasonable compensation. This exemption covers specified § 406(a) transactions, not fiduciary self-dealing under § 406(b). An employee benefits attorney can assess the arrangement and applicable exemption conditions. A provider’s claim that fees are standard is insufficient. The committee should determine whether any different statutory or class exemption applies before proceeding.


5. Contemporaneous Records Show How Oversight Worked


Records should explain the reasoning, not merely announce approval. The Department of Labor recommends documenting selection and monitoring decisions. Minutes cannot rescue an imprudent process.


Building a Useful Decision File

Organize evidence by decision, including:

  • Authority: Appointment documents and committee responsibilities.
  • Investments: Comparable fund data, benchmarks, and follow-up reports.
  • Fees: Competing proposals, disclosures, contracts, and invoices.
  • Decisions: Minutes showing questions, reasons, assigned actions, and dates.

Record the reviewers, unresolved questions, and reasons for retaining each option. A brief explanation of competing evidence is more useful than a one-line vote.

Escalating Issues before Contract Renewal

Unexplained fee increases, missing disclosures, and recurring investment concerns warrant investigation. Assign follow-up, obtain records, and consider independent review before renewing contracts. Potential breaches may lead to separate ERISA fiduciary litigation, distinct from individual benefit claims. Close follow-up assignments only after the committee evaluates the responses. Fiduciaries should be able to explain what they knew, checked, and decided.

30 Oct, 2026


The information provided in this article is for general informational purposes only and does not constitute legal advice. Prior results do not guarantee a similar outcome. Reading or relying on the contents of this article does not create an attorney-client relationship with our firm. For advice regarding your specific situation, please consult a qualified attorney licensed in your jurisdiction.
Certain informational content on this website may utilize technology-assisted drafting tools and is subject to attorney review.

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