Excess Aggregate Contributions

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Written by True Tamplin, BSc, CEPF®

Reviewed by Subject Matter Experts

Updated on July 11, 2023

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What Are Excess Aggregate Contributions?

Excess aggregate contributions refer to contributions made to an employee's account in a 401(k) plan that exceed the allowable limits for certain types of contributions, specifically matching and after-tax contributions, under the Internal Revenue Code (IRC).

They typically occur when a 401(k) plan fails the Actual Contribution Percentage (ACP) test, which is one of the nondiscrimination tests that 401(k) plans must perform annually.

If a 401(k) plan fails the ACP test, the plan must take corrective action to bring the plan into compliance.

One common corrective action is distributing the excess aggregate contributions and any associated earnings to the affected HCEs. These distributions must generally be made within 12 months after the end of the plan year in which the excess contributions occurred.

It's important to note that excess aggregate contributions are taxable to the affected employees in the year in which they are distributed.

Additionally, if the excess aggregate contributions are not corrected promptly, the plan may face penalties and potentially lose its tax-qualified status.

Components of Aggregate Contributions

Employee Contributions

Employee contributions play a significant role in retirement plans and include two primary types:

Salary Deferrals

Employees make these pre-tax contributions to retirement plans, such as 401(k) and 403(b) plans, directly from their paychecks.

After-Tax Contributions

Employees can also make after-tax contributions to retirement plans, such as Roth 401(k) contributions, which grow tax-free.

Employer Contributions

Employers often contribute to employees' retirement plans through:

Matching Contributions

Employers match employee contributions up to a certain percentage of the employee's salary.

Profit-Sharing Contributions

Employers may contribute a percentage of company profits to employees' retirement plans, regardless of employee contributions.

Factors Affecting Aggregate Contributions

Several factors can impact aggregate contributions, including employee demographics, industry-specific considerations, and economic conditions.

Components of Aggregate Contributions

Identifying Excess Aggregate Contributions

Excess Aggregate Contributions occur when employees and employers contribute more than the allowed annual limits to retirement plans.

Annual Contribution Limits

These limits are set by the Internal Revenue Service (IRS) and are updated periodically:

Individual Limits

The individual limit is the maximum amount an employee can contribute to their retirement plan each year.

Combined Limits for Employee and Employer Contributions

The combined limit is the maximum amount an employee and their employer can contribute to the employee's retirement plan each year.

Highly Compensated Employee (HCE) Status

Definition

An HCE is an employee who earns significantly more than the average employee, as defined by the IRS.

Income Thresholds

The IRS sets income thresholds to determine which employees qualify as HCEs.

Actual Deferral Percentage (ADP) and Actual Contribution Percentage (ACP) Tests

Retirement plans must undergo annual Actual Deferral Percentage (ADP) and ACP tests to ensure that they comply with federal regulations and that contributions from HCEs are proportionate to those of non-HCEs.

Purpose

These tests help prevent discrimination favoring HCEs and ensure that all employees have equitable access to retirement plan benefits.

Test Methodology

The ADP and ACP tests compare the average contribution percentages for HCEs and non-HCEs.

Compliance Requirements

Plans that fail these tests must take corrective actions to maintain their tax-qualified status.

Consequences of Excess Aggregate Contributions

Excess Aggregate Contributions can have negative implications for both employees and employers.

Impact on Employees

Tax Implications

Employees may face additional taxes on excess contributions, which are not tax-deductible.

Distribution of Excess Contributions

Excess contributions must be distributed to affected employees, which could result in additional taxes or penalties.

Impact on Employers

Potential Penalties

Employers may face penalties for failing to correct excess contributions in a timely manner.

Administrative Burden

Managing excess contributions can be time-consuming and require additional resources for employers.

Consequences of Excess Aggregate Contributions

Strategies for Managing Excess Aggregate Contributions

To effectively address Excess Aggregate Contributions, employers can consider the following strategies:

Plan Design Modifications

Safe Harbor 401(k) Plans

Employers can bypass ADP and ACP testing requirements by adopting a safe harbor 401(k) plan, provided they meet specific contribution and vesting requirements.

Automatic Enrollment and Escalation Features

Implementing automatic enrollment and escalation features can help increase participation and deferral rates among non-HCEs, potentially reducing the likelihood of excess contributions.

Employee Education and Communication

Importance of Diversifying Savings Strategies

Employers should educate employees about the importance of diversifying their savings strategies and considering alternative options, such as IRAs and taxable investment accounts.

Awareness of Contribution Limits and Potential Tax Implications

Informing employees about annual contribution limits and potential tax implications can help them make informed decisions and avoid excess contributions.

Monitoring and Compliance

Regular Testing and Analysis

Employers should perform regular testing and analysis to identify potential excess aggregate contributions and take corrective actions as needed.

Engaging Third-Party Administrators

Hiring a third-party administrator can help employers manage retirement plans more efficiently, ensuring compliance with regulations and monitoring for excess contributions.

Conclusion

Excess Aggregate Contributions play a significant role in the financial landscape, and understanding their components, consequences, and management strategies is essential for both employers and employees.

Retirement plans comprise contributions from employees, through salary deferrals and after-tax contributions, as well as from employers, via matching and profit-sharing contributions.

Identifying excess contributions involves understanding annual limits, HCE status, and ADP and ACP tests.

Excess contributions can lead to negative tax implications and administrative burdens for both employees and employers.

Employers can effectively manage these contributions by implementing plan design modifications, educating employees about savings strategies and limits, and engaging in regular monitoring and compliance efforts.

By staying informed and adapting to evolving regulations, organizations can ensure compliance and provide equitable retirement benefits to all employees.

Excess Aggregate Contributions FAQs

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About the Author

True Tamplin, BSc, CEPF®

True Tamplin is a published author, public speaker, CEO of UpDigital, and founder of Finance Strategists.

True is a Certified Educator in Personal Finance (CEPF®), author of The Handy Financial Ratios Guide, a member of the Society for Advancing Business Editing and Writing, contributes to his financial education site, Finance Strategists, and has spoken to various financial communities such as the CFA Institute, as well as university students like his Alma mater, Biola University, where he received a bachelor of science in business and data analytics.

To learn more about True, visit his personal website or view his author profiles on Amazon, Nasdaq and Forbes.

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