Blog · Benefit Plan Audits

Top Mistakes Companies Make During Benefit Plan Audits—and How to Avoid Them

August 20, 2025 7 min read By montalvoteam

Top Mistakes Companies Make During Benefit Plan Audits—and How to Avoid Them

Employee benefit plan audits are essential for businesses offering retirement or welfare benefits. These audits, particularly for plans like 401(k)s, ensure that organizations comply with regulations and safeguard plan participants. However, many companies encounter avoidable obstacles during the process.

This guide breaks down what employee benefit plan audits involve, where businesses often slip up, and how to steer clear of common problems for a smoother experience.

Understanding Employee Benefit Plan Audits

Prepare for Audits, Grant Compliance, and Financial Oversight

Before addressing the pitfalls, it helps to understand what employee benefit plans are and why audits are conducted. These audits confirm whether a company is managing its benefit plan responsibly and within the law.

What Is an Employee Benefit Plan?

An employee benefit plan is an arrangement employers set up to provide retirement income, health coverage, disability benefits, or life insurance. Examples include 401(k), 403(b), pension plans, ESOPs, and welfare benefit plans.

Organizations that reach 100 eligible participants in a plan typically need to undergo employee benefit plan audits to ensure proper oversight and compliance with the rules.

What Are the Two Types of Employee Benefit Plans?

Employee benefit plans fall into two groups: Pension Benefit Plans and Welfare Benefit Plans.

Pension Benefit Plans focus on helping you save for retirement, and they generally include two types: defined benefit plans and defined contribution plans. These often fall under employee benefit plan audit requirements and include well-known options like 401(k) and 403(b) plans. Welfare Benefit Plans, such as health insurance or disability plans, provide non-retirement support and may also be subject to audits, depending on size and structure.

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What Is an Audit of Employee Benefit Plans?

An audit of an employee benefit plan is a detailed review of financial statements and plan operations. It's performed by an independent auditor to determine whether the plan is compliant with ERISA, IRS, and DOL regulations.

The audit checks that assets are reported correctly, contributions are made on time, and participant data is accurate. A firm familiar with 401k audit requirements and plan operations can make a significant difference in avoiding missteps.

How Do You Select an Auditor for Your Employee Benefit Plan?

Finding the right auditor sets the tone for the entire process. Look for a firm with specific experience in employee benefit plan audit services, especially for your type of plan.

Ask auditors about their expertise with 401(k), 403(b), or pension plans, and review their peer evaluations. Skilled employee benefit plan audit firms grasp the technicalities and will streamline your audit.

Common Mistakes Companies Make During Benefit Plan Audits

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Many audit issues can be traced back to oversights or gaps in documentation and processes. Recognizing these common problems can help you avoid delays, penalties, or compliance concerns.

Missing or Outdated Plan Documents

Auditors frequently find that essential plan documents are missing or outdated. These include Summary Plan Descriptions, amendments, and adoption agreements. If these documents aren't maintained properly, the audit can come to a halt.

Falling short on documentation can raise red flags under employee benefit plan audit requirements. Keeping these records current and organized will support a smoother process.

Late Contributions

Delayed deposits of participant contributions are one of the most common issues uncovered during audits. The Department of Labor expects contributions to be submitted as soon as reasonably possible, often within a few days of payroll.

Late deposits can result in audit findings and potential penalties. Meeting 401 (k) audit standards starts with setting up processes that ensure contributions are handled promptly.

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Incorrect Compensation Definitions

Plans define compensation in specific ways for calculating contributions. Using the wrong definition leads to errors that affect contributions and testing results.

This mistake shows up often during employee benefit plan audits. To prevent it, HR and payroll teams need a clear understanding of what counts as compensation according to the plan.

Inaccurate Employee Census Data

Census data is used to test eligibility, contributions, and nondiscrimination. Errors in employment status, hire dates, or compensation figures can affect the accuracy of the audit.

Incorrect data puts your employee benefit plan audit at risk. Reviewing this information in advance helps avoid unnecessary corrections later.

Weak Internal Controls

A lack of internal checks can open the door to mistakes or misuse of plan funds. Auditors look closely at how responsibilities are divided and whether processes are consistently followed.

Employee benefit plan audit firms often identify gaps that could have been addressed with stronger internal policies. Reliable controls not only help with compliance but also protect your plan from errors.

How to Avoid These Mistakes and Prepare for a Successful Audit

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Preparation is the key to passing your audit without problems. With the right practices, your team can build a strong foundation that supports both compliance and efficiency.

Maintain and Organize All Plan Documents

Develop a system to store and manage your plan-related documents. Include items like SPDs, amendments, Form 5500s, and payroll files.

Organized documentation supports your employee benefit plan audit and shows that your team is ready. A digital filing system can make access and updates easier.

Ensure Timely Contribution Processing

Work with payroll vendors and plan custodians to automate contribution deposits. Set internal deadlines that go beyond minimum standards to avoid delays.

Following a clear timeline ensures compliance with 401 (k) audit requirements. Reliable contribution processing gives auditors confidence in your internal systems.

Align Compensation Definitions Across Departments

Miscommunication between payroll and HR can lead to incorrect contribution calculations. Everyone involved should understand the plan’s definition of compensation.

Review and reconcile compensation annually to avoid missteps. Clear alignment makes your employee benefit plan audit more efficient and reduces the chance of findings.

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Regularly Audit Census Data

Internal audits of employee data can uncover small mistakes before they become big problems. Compare data with official forms like W-3 and year-end summaries.

Accurate census data is vital for eligibility checks and nondiscrimination testing. Staying ahead of issues helps meet employee benefit plan audit requirements with confidence.

Strengthen Internal Controls

Divide tasks so that no one person handles all aspects of plan administration. Set up reviews and approvals to catch mistakes early.

Evaluate these controls regularly, especially after staff changes or system updates. Many companies benefit from advice provided by pension plan audit services and 401 (k) audit services professionals.

How Davis Group P.A. Supports Your Benefit Plan Audit

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Managing a benefit plan audit can take time and focus away from your daily operations. That's where expert support makes all the difference. Davis Group P.A. brings experience and clarity to the audit process.

Making Benefit Plan Audits Seamless for Our Clients

At Davis Group P.A., we tailor every audit to your business's specific needs. Whether you operate a small nonprofit or a growing business, we help you meet every requirement without disrupting your workflow.

As one of the most trusted employee benefit plan audit firms in Central Florida, we make sure your audit meets all employee benefit plan audit requirements while keeping the process manageable.

What You Can Expect When You Work With Us

Our team walks you through each step—from organizing documents to reviewing your internal controls. We coordinate directly with your plan providers to keep things moving smoothly.

We specialize in 401k audit services, 403(b) plan audits, and pension plan audit services. Whether you're based in Orlando, Altamonte Springs, or Brevard County, we deliver the accuracy and guidance you need for a successful employee benefit plan audit.

Conclusion

Benefit plan audits play a key role in managing retirement and welfare programs responsibly. They help confirm that your plan is following the rules, your internal processes are working, and your employees' benefits are handled properly.

This article explored the core elements of employee benefit plan audits, from understanding what they are and why they matter, to recognizing common mistakes like missing documents or late contributions. It also outlined how to avoid these pitfalls through careful preparation, strong internal controls, accurate data, and timely processing. We highlighted how partnering with experienced professionals, such as Davis Group P.A., can simplify the audit experience and ensure compliance.

Don't leave your audit to chance. Contact Davis Group P.A. today to schedule a consultation and ensure your employee benefit plan is fully protected and compliant.

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