Part 4 · Chapter 1
Reporting, Disclosure, and Recordkeeping
Scope and status
This regime is unusually figure- and form-driven: indexed §502(c) penalties, Form 5500/8955-SSA/5330 mechanics, and electronic-delivery safe harbors change frequently. Verify every indexed dollar amount, deadline, form version, and safe-harbor condition against current primary authority before relying on them.
Citations are to primary authority (ERISA section and parallel U.S. Code; Code section; DOL/IRS/PBGC regulation; agency guidance). Dollar amounts tagged indexed — verify are inflation-adjusted annually; the figures stated are the most recent confirmed values (2025 adjustment levels; DOL cancelled the 2026 adjustment, 91 Fed. Reg. 31358 (May 27, 2026), so the 2025 amounts remain in force) and must be reconfirmed.
This chapter covers the reporting (government-facing filings), disclosure (participant-facing notices and documents), and recordkeeping obligations for qualified retirement plans. Welfare-plan-specific reporting (welfare Form 5500, Form M-1 detail, gag-clause and RxDC) is summarized only at the boundary — route deep welfare issues to Part 13 (COBRA, HIPAA, and Welfare Benefits). Distribution notices (§402(f), 1099-R, withholding) belong to Part 6 (Distributions, Loans, Rollovers, and RMDs). Claims and appeals (the §503 notice mechanics) are covered in the companion ERISA §503 Claims, Appeals, and Judicial Review.
Sections
Part A — Scope, Actors, and Threshold Definitions
A1.Who the duties run to
Part 4, ch. 1, § A1
ERISA Title I imposes the reporting and disclosure duties on the plan administrator, and the §6058/§6057 return duties on the plan administrator/employer; these are non-delegable as a matter of legal responsibility even when a recordkeeper or TPA performs the work. Statute: ERISA §§101–105, 107, 109; Code §§6057, 6058, 6059. The "administrator" is the person named in the plan document, or the sponsor if none is named. Statute: ERISA §3(16).
A2.Which plans are covered — and the key exclusions
Part 4, ch. 1, § A2
The reporting and disclosure rules reach every ERISA employee benefit plan (pension and welfare). Statute: ERISA §3(1)–(3), §4(a). Excluded from Title I (and thus from most of this regime) are: governmental plans; non-electing church plans; plans maintained solely to comply with workers'-comp/unemployment/disability law; plans for nonresident aliens maintained outside the U.S.; unfunded excess-benefit plans; plans without common-law employees (owner-only plans, which file Form 5500-EZ); and ERISA-exempt 403(b) arrangements. Two other groups remain Title I plans with reduced reporting: SEPs and SIMPLE IRA plans, which use substitute disclosures instead of the Form 5500 (ERISA §101(h); 29 C.F.R. 2520.104-48/-49); and top-hat plans, which satisfy the Part 1 reporting/disclosure obligations by a one-time alternative-compliance statement filed with DOL but remain subject to Part 5, including the §503 claims procedures. Statute: ERISA §4(b); Final reg: 29 C.F.R. 2520.104-23 (top-hat), 2520.104-48/-49, 2510.3-3.
A3.Plan-type and size classifications that drive the rules
Part 4, ch. 1, § A3
Three classifications govern which forms and disclosures apply: (1) pension vs. welfare Statute: ERISA §3(1)–(2); (2) defined contribution / individual-account vs. defined benefit Statute: ERISA §3(34)–(35); and (3) large vs. small plan, which determines the Form 5500 version, schedules, and the independent-audit requirement. The large/small line is generally 100 participants, subject to the 80–120 rule (a plan may keep its prior-year status while 80–120). Final reg: 29 C.F.R. 2520.103-1. Recent change beginning with the 2023 plan year the participant count for the audit/large-plan determination for defined contribution plans is based on participants with account balances (not all eligible employees) — confirm the current counting method and audit-waiver thresholds. Final reg/agency guidance — verify; 2023 Form 5500 instructions.
Part B — Reporting (Government-Facing Filings)
- B1Form 5500 / 5500-SF — the annual reportSubscribers
- B2The independent-audit requirementSubscribers
- B3Form 5500-EZ — one-participant and foreign plansSubscribers
- B4Form 8955-SSA — separated participants with deferred vested benefitsSubscribers
- B5Form 5558 — extension of timeSubscribers
- B6Form 5330 — excise-tax returnSubscribers
- B7Form 5310-A — notice of merger, consolidation, spinoff, or asset transferSubscribers
- B8Form 1099-R and related distribution reporting (cross-reference)Subscribers
- B9Form M-1 (welfare MEWAs — cross-reference)Subscribers
- B10PBGC filings — premiums and reportable events (DB plans)Subscribers
Part C — Document Disclosures to Participants
- C1Summary Plan Description (SPD)Subscribers
- C2Summary of Material Modification (SMM)Subscribers
- C3Summary Annual Report (SAR)Subscribers
- C4Annual Funding Notice (AFN) — defined benefit plansSubscribers
- C5Periodic pension benefit statementSubscribers
- C6Lifetime income illustrationSubscribers
Part D — Event- and Feature-Driven Notices
- D1Section 204(h) notice — significant benefit reductionSubscribers
- D2Blackout-period noticeSubscribers
- D3Qualified Default Investment Alternative (QDIA) noticeSubscribers
- D4Safe-harbor 401(k), QACA, EACA, and automatic-contribution noticesSubscribers
- D5Diversification / right-to-divest notice (employer securities)Subscribers
- D6Funding-based benefit limitation (§436) notice — DB plansSubscribers
- D7Suspension-of-benefits noticeSubscribers
- D8Domestic relations order / QDRO noticeSubscribers
- D9Other situational notices (catalog — verify each before use)Subscribers
- D10Unenrolled-participant annual reminder (SECURE 2.0)Subscribers
Part E — Participant Fee and Service-Provider Disclosure
- E1Section 404a-5 — participant-level fee disclosureSubscribers
- E2Section 408(b)(2) — service-provider (covered-service-provider) disclosureSubscribers
Part F — On-Request and On-Demand Disclosure
Part G — Manner of Delivery (Electronic and Paper)
- G1The two DOL electronic-disclosure safe harborsSubscribers
- G2IRS electronic-delivery rules for notices and electionsSubscribers
- G3SECURE 2.0 paper-statement overlay (interaction)Subscribers
- G4Proposed group health plan e-disclosure safe harbor (new — proposed only)Subscribers
Part H — Recordkeeping
- H1Section 209 — benefit records sufficient to determine benefitsSubscribers
- H2Section 107 — six-year retention of filing-support recordsSubscribers
- H3Electronic recordkeepingSubscribers
Part I — Penalties and Correction
- I1The civil-penalty architectureSubscribers
- I2DFVC — late or unfiled Form 5500Subscribers
- I3IRS reasonable cause and EZ reliefSubscribers
- I4Top-hat and Form M-1 special reliefSubscribers