If more than 100 of your employees are participating in your company’s 401(k) plan, you may need an audit. (The Department of Labor requires one annually.) Facing an audit can feel overwhelming, especially if you’re new to the process. But with Mowery & Schoenfeld’s seasoned team on your side, you can relax because we’ll keep your annual audit smooth, on schedule, and painless. Let us handle the heavy lifting while you focus on what you do best.
401(k) Plan Audit Services
Make Your Employee Benefit Plan Audits Seamless and Compliant
What Is a 401(k) Plan Audit?
A 401(k) plan audit is an annual review of your retirement plan’s compliance with Department of Labor (DOL) and IRS rules, and verifying accuracy in financial reporting, participant records, and timely contribution deposits.
During the audit, our specially trained certified public accountants will review and test the plan’s administration, look at contributions, and check the timing of deposits, benefit payments, and participant loans, if applicable. Mowery & Schoenfeld’s auditors then help complete the plan’s financial statements and provide recommendations for improving the plan sponsor’s internal controls. Finally, our team offers feedback on the Form 5500 for timely filing with the regulatory agencies.
Your Fiduciary Responsibility: Why EBP Audit Quality Protects Your Organization
Your business has fiduciary duties outlined under ERISA that require you to act in plan participants’ best interest. This extends to the selection and oversight of the plan’s independent auditor, making it even more important to work with an experienced team of plan auditors.
If an audit falls short, the consequences can be serious, from Department of Labor enforcement actions and IRS penalties to personal liability for plan sponsors, participant lawsuits, or even plan disqualification.
Mowery & Schoenfeld’s audit team gives you the expertise of experienced professionals with dedicated employee benefit plan training, so you can rest assured your plan is compliant and meets beneficiaries’ needs as your company grows.
ERISA Compliance and Correction Programs That Keep You Ahead of Enforcement
ERISA requires plan administrators to file an annual Form 5500 with the DOL, maintain plan documents, provide summary plan descriptions (SPDs) to participants, and follow specific rules for plan amendments, distributions, and fiduciary conduct. Failure to comply can result in IRS penalties of up to $250 per day (maximum $150,000) under IRC Section 6652(e), and DOL civil penalties of up to ~$2,670 per day (inflation-adjusted) under ERISA Section 502(c)(2)
Finding compliance issues during an audit gives you have an opportunity to make corrections through the IRS Employee Plans Compliance Resolution System (EPCRS) and the DOL’s Voluntary Fiduciary Correction Program (VFCP) and Delinquent Filer Voluntary Compliance Program (DFVCP).
These structured pathways let you correct errors before they trigger enforcement action. Our audit approach identifies compliance gaps early and connects you with actionable steps to get your plan back on track.

