DOL EBSA 401(k) Plan Sponsor Audit Document Response

The situation

Deb, 52, is the HR Director for Hawthorne Metal Works LLC, a Michigan precision machining company with 38 employees and a 401(k) plan with $1.1M in plan assets. In May 2026 Deb received a DOL EBSA opening letter: "This office has opened a civil investigation of the Hawthorne Metal Works 401(k) Profit Sharing Plan. Please produce the following documents within 30 calendar days..." The letter lists 14 document categories.

Deb has never been through an EBSA audit. The plan was established in 2019 by their payroll provider (ADP TotalSource), who set up the investments and handles the Form 5500 filing. Deb knows where to find the plan documents, but she doesn't know what an "Investment Policy Statement" is, whether Hawthorne has a "Fidelity Bond," or what "participant notices" EBSA expects to see.

(a) Hawthorne probably has a late contribution problem. Hawthorne's 401(k) contributions are deposited into the plan trust on the 15th of the month following payroll. ERISA requires small plans to deposit within 7 business days of payroll. Hawthorne has been late on every payroll cycle since 2019. EBSA will find this in the Form 5500 cash flow data. The penalty: lost earnings restoration + potential excise tax.

(b) VFCP self-correction is still available for late contributions. If Hawthorne proactively corrects the late contribution issue using the VFCP Online Calculator and deposits corrective earnings before EBSA concludes its investigation, it can avoid the full excise tax. This window closes when EBSA finds the violation first.

(c) Hawthorne has no Investment Policy Statement. ADP set up the plan with a default target-date fund lineup. EBSA will ask for IPS and investment committee meeting minutes. Hawthorne has neither. The fiduciary defense: no IPS is not per se an ERISA violation, but it demonstrates lack of prudent process. The plan sponsor can document the investment selection process retroactively if a reasonable process was actually followed.

(d) An ERISA attorney quoted $8,500. Deb's company attorney referred her to a Detroit ERISA attorney who quoted $8,500 for the document production review and EBSA response.

Who receives this

Small employer plan sponsors (companies with 20-100 employees) receiving EBSA investigation opening letters for their 401(k) or profit-sharing plans. Primary pain: document production, knowing what each category means, whether they have it, and how to present fiduciary compliance arguments when formal records don't exist. Secondary pain: late contribution discovery and VFCP self-correction calculation.

Why the agency will not advise you

EBSA investigators cannot advise plan sponsors on how to organize their document production or frame fiduciary process arguments. The ERISA fiduciary framework (investment process documentation, SPD currency, contribution timing) is codified in statute and DOL guidance, the decision tree is known and systematizable. The VFCP Online Calculator is already a government tool; the self-correction analysis is formulas-based.

Key facts, with sources

• DOL's Employee Benefits Security Administration (EBSA) audits approximately 3,000–4,000 employee benefit plans per year, with investigations triggered by anomalies in Form 5500 filings, participant complaints, referrals from other agencies, and routine targeting of industries with known compliance issues. When EBSA opens a civil investigation, it sends an opening letter identifying the plan and requesting documents to be produced within 30 days. Plans of 100 or more participants must include an independent audit as part of annual Form 5500 filings. Small plans (under 100 participants) file the simplified Form 5500-SF but are not exempt from EBSA investigations. The most common EBSA investigation findings for small plans: (1) late deposit of participant contributions (ERISA requires deposits 'as soon as reasonably practicable', for companies with payroll, DOL's safe harbor is 7 business days, but small plans routinely hold contributions 30-60 days); (2) missing or outdated SPD; (3) failure to document fiduciary investment process; (4) fidelity bond deficiency. ERISA attorneys (Groom Law Group, Faegre Drinker, Morgan Lewis) charge $5,000-$15,000 for investigation representation. Source: The DOL Audit: How Plan Sponsors Prepare and What to Expect — PlanPilot · Preparing for a 401(k) Audit: A Guide for Plan Sponsors — Corrigan Krause · Retirement Plans — U.S. Department of Labor
• DOL's VFCP (Voluntary Fiduciary Correction Program) was updated in January 2025 to add a self-correction component (SCC), allowing voluntary correction of certain ERISA violations (specifically late deposit of participant contributions and certain loan failures) without submitting a full VFCP application to DOL. This is a proactive voluntary program, not a defense tool for use during an active EBSA investigation, once EBSA has opened a civil investigation, the voluntary correction 'safe harbor' window has closed. ERISA's late contribution penalties: the employer must restore lost earnings to the plan (calculated using the DOL's VFCP Online Calculator, based on the IRS underpayment rate), and the excise tax under IRC §4975 (15% of the amount involved per year) may apply for prohibited transactions. The most common trigger for EBSA investigation of small plans is Form 5500 line items showing late contributions, specifically when the cash flow statement shows employee contributions received but the trust statement shows deposits later than the payroll date. Source: 401(k) DOL Audit Triggers — Human Interest · 401k Plan Audit Requirements: A Guide for Employers — Watkins Ross

When to bring in a professional

Self-serve responses fit routine cases: clear facts, amounts a business can absorb, and a deadline still ahead of you. Bring in a licensed professional when the amount at stake is large relative to their fee, the facts are genuinely disputed, criminal exposure is possible, or the deadline has already passed. A short paid consultation to sanity-check your plan is often worth it even when you handle the filing yourself.

All sources for this guide

1. The DOL Audit: How Plan Sponsors Prepare and What to Expect — PlanPilot
2. Preparing for a 401(k) Audit: A Guide for Plan Sponsors — Corrigan Krause
3. Retirement Plans — U.S. Department of Labor
4. 401(k) DOL Audit Triggers — Human Interest
5. 401k Plan Audit Requirements: A Guide for Employers — Watkins Ross