ERISA Benefits Law Desk ReferenceERISA Benefits Tech, LLC

Part 6 · Chapter 4

Missing Participants and Uncashed Checks

Law stated as of October 3, 2026 · Distributions, Loans, Rollovers, and RMDs

Scope and status

This chapter covers the missing or non-responsive participant and the uncashed distribution check: the fiduciary frame, DOL's guidance package (Best Practices, CAR 2021-01, FAB 2014-01, FAB 2021-01, FAB 2025-01), the PBGC Missing Participants Program, the tax treatment of uncashed checks and of payments to State unclaimed property funds, State escheat and ERISA preemption, the RMD interaction, and the Retirement Savings Lost and Found.

A note on the weight of the authority. Almost none of this area is regulation. There is no DOL regulation prescribing a missing-participant search, no regulation governing uncashed checks, and no safe harbor for an ongoing plan. The operative DOL material is sub-regulatory — best practices, field assistance bulletins directed at EBSA staff, and a compliance assistance release — issued without notice and comment, entitled at most to Skidmore respect, and binding on no one, least of all a private plaintiff. A non-enforcement policy protects against a DOL enforcement action; it does not protect against a §502(a)(1)(B) benefits claim or a §502(a)(2) breach claim. The genuinely binding law here is the fiduciary standard itself (ERISA §404(a)(1)(A)-(B)), the PBGC regulation (29 C.F.R. Part 4050), and the Code's withholding and reporting rules.

Related questions are treated elsewhere: forfeiture and reinstatement mechanics in Part 5 (Qualified Plan Testing, Eligibility, and Vesting) (unit E3); plan-termination wind-up sequencing in Part 2 (Plan Documents, Amendments, Mergers, and Terminations) (unit E7); EBSA investigation posture and the PBGC audit angle in Part 22 (Government Audits and Investigations); and correction of the underlying qualification or fiduciary failure in Part 21 (Plan Corrections: EPCRS, VFCP, and DFVCP).

Sections

Part A is shown in full. The other sections are listed by title; their text is available to subscribers.

Part A — The Fiduciary Frame

A1.Two different problems, constantly conflated

Part 6, ch. 4, § A1

A missing or non-responsive participant is one the plan cannot locate or who will not respond. An uncashed check is a different animal: the plan found the participant and paid, and the payment was never negotiated. They carry different tax consequences (Part D), different search obligations, and different clocks. Practitioner consensus.

A2.The binding obligation

Part 6, ch. 4, § A2

Locating participants and paying benefits when due is a fiduciary act governed by the duties of loyalty and prudence and by the requirement to act in accordance with plan documents. Statute: ERISA §404(a)(1)(A)-(B), (D). A benefit owed and unpaid remains a claim for benefits due under §502(a)(1)(B), and a failure to administer a locate-and-pay process prudently is analyzed as a breach under §409/§502(a)(2). Statute: ERISA §§409, 502(a)(1)(B), (a)(2).

A3.The cost question

Part 6, ch. 4, § A3

Reasonable expenses of administering the plan, including reasonable search costs, may generally be paid from plan assets; costs that are settlor functions or that are unreasonable in relation to the account may not. Statute: ERISA §404(a)(1)(A)(ii), §403(c)(1); Agency guidance — informal: DOL, Missing Participants — Best Practices for Pension Plans (Jan. 12, 2021).

Part B — DOL's Guidance Package (all sub-regulatory)

  1. B1Best Practices (January 12, 2021)Subscribers
  2. B2Compliance Assistance Release 2021-01 — the Terminated Vested Participants ProjectSubscribers
  3. B3FAB 2014-01 — terminating defined contribution plansSubscribers
  4. B4FAB 2021-01 — the PBGC bridge for terminating DC plansSubscribers
  5. B5FAB 2025-01 — voluntary escheat from an ongoing planSubscribers
  6. B6What none of this doesSubscribers

Part C — The PBGC Missing Participants Program

  1. C1ScopeSubscribers
  2. C2How it worksSubscribers
  3. C3Audit exposureSubscribers

Part D — Uncashed Checks: Tax Treatment

  1. D1Failure to cash changes nothing for tax purposesSubscribers
  2. D2The money is still the plan's, and still owedSubscribers
  3. D3Paying a State unclaimed property fund is a taxable distributionSubscribers
  4. D4The participant's later remedySubscribers
  5. D5Where uncashed checks come fromSubscribers

Part E — State Escheat and ERISA Preemption

  1. E1DOL's position: a State cannot compel escheatSubscribers
  2. E2Voluntary escheat is a separate, fiduciary questionSubscribers
  3. E3Two traps preemption does not solveSubscribers
  4. E4What is genuinely unsettledSubscribers

Part F — Adjacent Regimes and Practice Sequence

  1. F1The RMD collisionSubscribers
  2. F2The Retirement Savings Lost and FoundSubscribers
  3. F3Enforcement postureSubscribers
  4. F4The practice sequenceSubscribers

Worked examples

The first Part of each chapter is open to everyone. The remaining sections, with their authority and practice points, are available to subscribers and to clients of ERISA Benefits Law Group, PLLC whose engagement includes access.

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