By Nick Capo

As the first quarter wraps up, many plan sponsors are turning their attention to an important responsibility: preparing for 401(k) audit season. In general, plans with 100 or more eligible participants at the beginning of the plan year are required to include an independent audit with their Form 5500 filing. While the audit requirement can feel daunting, understanding what auditors focus on and maintaining organized processes throughout the year can make this annual process far more manageable.

Maintain Strong Operational Compliance

A successful audit begins with strong operational compliance throughout the year. Common audit findings often involve late employee deferral deposits, improper application of eligibility rules, inaccurate compensation calculations or missed employer contributions. These issues typically stem from administrative oversights rather than intentional errors. Establishing clear internal procedures, coordinating closely with payroll providers and conducting periodic internal reviews can help identify and correct small problems before they become larger compliance concerns.

Prioritize Documentation and Governance

Documentation is another critical area of focus. Auditors will review plan documents, amendments, board or committee meeting minutes, service provider agreements and evidence that fiduciaries are following the terms of the plan. Maintaining organized records and regularly reviewing the plan document for required updates, particularly considering ongoing legislative changes, can streamline the audit process. Advisors can add meaningful value by helping sponsors understand what documentation is required and by reinforcing best practices for fiduciary oversight.

Turning Audit Season into an Opportunity

Ultimately, audit season should not be viewed as merely a regulatory hurdle, but as an opportunity to strengthen plan governance and operational excellence. With the right preparation, sponsors can approach audits confidently and use the process to enhance participant outcomes and fiduciary protection. With proper preparation and the support of experienced advisors and service providers, organizations can transform audit season from a compliance burden into a strategic advantage for their retirement plan.