What a 401(K) Audit Reveals About Hidden Operational Risks in Payroll, Security and Finance

Your 401(k) plan audit is more than a regulatory requirement. For companies approaching the audit threshold, understanding the 401(k) audit requirements and process can also highlight broader operational risks. 

When we discover inaccuracies during a 401(k) plan audit, they often signal systemic operational weaknesses—in payroll, internal controls, cybersecurity, finance leadership, or growth management. The audit may highlight risks rooted in other parts of your organization, notifying your leaders and giving them the chance to mitigate risks. 

Payroll and Data Integrity Risks 

System access glitches, file formatting issues, or delays caused by outdated technology are common symptoms we see during 401(k) audits. File formatting issues or inconsistent reporting structures can prevent teams from producing reliable payroll and census data. Is pulling the year-end reports frustrating because you can’t quite get what you want for your auditor? If you have trouble accessing accurate payroll and census data for your 401(k) audit, it can signal deeper issues within your payroll system and data governance.  

Working with incomplete or wrong data comes with risks. 401(k) contributions errors, delayed filings, or failing nondiscrimination testing can cause regulatory consequences, including the need to correct participant deferral errors. It will also shake trust in your company’s internal reporting and possibly inhibit strategic planning. Unreliable data is a red flag that should be addressed quickly through internal or outsourced Information Technology (IT) support, as weak data governance can also increase exposure to operational errors and internal fraud risks

Data Security and Access Controls 

Cybersecurity goes hand in hand with IT integrity. Working with sensitive payroll and human resources data—employee names, addresses, Social Security numbers, dates of birth—comes with potential risks. How secure is your employee data?  

With cybersecurity threats on the rise, most employers are tightening their data security procedures. This is especially true when protecting the flow of confidential information between platforms. Your systems must ensure that all employee data is managed securely and consistently, avoiding a data breach and the headaches that come with it. 

One area of vulnerability is system access. As you pull information for your auditor make sure employee user access records are current, and that you promptly remove people who are no longer company employees. Also, all users should have a unique user ID, which should never be shared or reissued. Recently, we’ve seen situations where user IDs are transferred from a person leaving the company directly to a replacement. We see this as a huge red flag for company security. 

Without this attention to data safety and user access, companies run the risk of fiduciary exposure, cyber vulnerability, and regulatory scrutiny. If retirement plan data security is weak, it follows that there may be data security issues in other areas of your company. Audit time can be a wise time for a complete security review. 

The U.S. Department of Labor has increased its focus on retirement plan governance and fiduciary responsibility, reinforcing the importance of strong data controls and documentation. Guidance from the Department of Labor Employee Benefits Security Administration outlines expectations for plan oversight and participant data protection. 

Rapid Growth and Organizational Complexity 

The 401(k) audit also uncovers hiring trends and turnover patterns, which may impact leadership planning. Perhaps your company’s workforce is rapidly growing. We recently had one client whose census seemed to double year after year. They went from 200 employees to 400 to 800 in two years. That’s a lot of onboarding! 

Maybe your company has grown through M&A activity, making it necessary to reduce duplication and reorganize decentralized teams. Some industries—retail and food service—are prone to high turnover, so recruitment and training are always underway. 

When we see 401(k) eligibility tracking errors and missed employee deferrals, we know there’s a strain on a company’s Human Resources capabilities and finance processes. This can increase compliance risk and fiduciary exposure. It can also be a signal that your company’s recruiting strategy may need to be refreshed. Sometimes it’s helpful to outsource some of a company’s hiring functions, especially for hard-to-fill roles. 

Finance Leadership and Reporting Gaps 

Other warning signs of possible organizational weakness are operational breaches, such as delays in month-end reporting, cash flow strain, lack of financial oversight, and executive decision-making that is reactive rather than strategic.  

If your company has recently established new pay groups, added business units, or expanded operations, it means that your internal finance team is taking on more complexity. Unaddressed, this complexity can lead to compliance gaps that point to broader breaks in oversight.  

Disparities in the 401(k) audit may suggest structural finance issues or simply a need for more financial leadership maturity as your company expands. One way to deal with this problem is by working with a Virtual CFO.  

This can be a permanent or transitional solution as you evaluate your situation. You can choose from various levels of service depending on what you need. Some companies just need extra help at month-end, while others need a higher-level financial executive who can help with oversight and strategic planning. 

Structural and Tax Changes 

Increased compliance complexity and audit risk can also be sparked by structural, expansion, or geographic changes. Are you opening an office in another state? Consolidating locations from three states to one?  

Maybe you’re beginning to do business internationally. Are you transforming your company from an LLC to a Subchapter S corporation or selling your company to another company? Whether you’re growing, contracting, or doing something completely different from what you’ve ever done before, all these moves come with significant tax implications. Each scenario needs expert analysis and consideration from a taxation perspective. 

Couple this with evolving tax laws, and everything becomes even more complicated. Through 401(k) audits, we often identify situations where tax payments are being over or underestimated. In addition to your auditors, you may also benefit from working with a tax consultant who can guide you to optimize your tax strategy. 

The Audit as an Early Warning System 

Albert Einstein said, “In the middle of difficulty lies opportunity.” While your 401(k) audit may seem like just an onerous compliance task, it’s really an early detection opportunity for identifying signs of potential risks throughout your company. What we learn from the audit can help you reduce risk across payroll, governance, and finance. It provides valuable insights, which can inform strategy and strengthen your company going forward. 

If your organization is approaching the 401(k) audit threshold, now is the time to evaluate operational controls before compliance issues surface. Talk with an Anders advisor about strengthening audit readiness and financial oversight.  

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