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Robert Bloink and William H. Byrnes

Retirement Planning > Saving for Retirement

401(k) Catch-Up Rules About to Become Much More Complex

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What You Need to Know

  • Starting in 2024, certain taxpayers must treat catch-up contributions toward retirement as Roth contributions.
  • This change will affect taxpayers who earn at least $145,000 a year.
  • Advisors will need to make sure that their clients are aware of these changes to avoid breaking Secure 2.0 rules.

The Secure Act 2.0 contains many changes to the rules governing retirement plan catch-up contributions. Unfortunately, when Congress drafted the bill, the Internal Revenue Code provision that allows for catch-up contributions was deleted in the process.

Assuming that it was an accident and Congress is able to fix the mistake, the rules governing catch-up contributions will become much more complex beginning in 2024.

While these new rules seem simple on their face, they create many complications that retirement savers and companies that sponsor retirement plans must understand as we move toward next year.

Secure 2.0 Changes

Under current law, individuals who have reached age 50 and older are permitted to make additional catch-up contributions to retirement accounts. For IRAs, the catch-up contribution limit is $1,000 in 2023 (the amount has previously not been indexed for inflation). Beginning in 2024, this $1,000 limit will be indexed for inflation.

For company plans, including 401(k) and 403(b) plans, the catch-up contribution limit is much higher ($6,500 in 2022 and $7,500 in 2023). Starting in 2025, a new, special catch-up contribution is permitted for taxpayers between the ages of 60 and 63. The contribution limit will be equal to the greater of (1) $10,000 or (2) 150% of the standard catch-up contribution limit for 2024. The $10,000 limit will also be indexed for inflation. Once the taxpayer reaches age 64, the regular (lower) catch-up contribution limit applies.

Starting in 2024, if the taxpayer has an income of at least $145,000 for the year, the catch-up contribution must be treated as a Roth contribution. That means these funds are contributed with after-tax dollars, so they will not reduce current taxable income, but can be withdrawn tax-free in the future. The $145,000 amount will also be indexed for inflation in future years.

Complications and Potential Pitfalls

The requirement that high-income taxpayers must treat catch-up contributions as Roth contributions will raise significant revenue for the government. Of course, it will also create new complications for plan sponsors. The $145,000 limit is a new limit — meaning that it is not related to the existing definitions for highly compensated employees.

Plans will be required to track this new limit to determine whether any given participant’s catch-up contributions must be treated as Roth contributions (note that the income limit that applies in the definition for highly compensated employees is $150,000 in 2023).

The $145,000 amount is also tied to W-2 income (because the Secure Act 2.0 provision governing these new rules references an IRC Section related to W-2 compensation). Therefore, if an S corporation owner only takes $130,000 in “compensation” but also receives additional profits from the S corporation, the owner will not have crossed the $145,000 threshold to trigger the “Rothification” rule.

Similarly, the new Roth contribution rule would not apply for sole proprietors, partners in partnerships or LLC members who are taxed as sole proprietors. That’s because these taxpayers are considered self-employed and, by definition, do not receive W-2 compensation.

As an added complication, some catch-up contributions occur because of the existing recharacterization rules related to nondiscrimination testing. When plans fail their ADP testing for nondiscrimination testing purposes, they must either issue refunds for highly compensated employees or provide additional contributions for non-highly compensated employees to bring the plan back into compliance.

If the plan refunds highly compensated employees, it is required to “recharacterize” impermissible contributions as catch-up contributions if the employee is at least 50 and hasn’t already maxed out their catch-up contributions for the year. The plan must therefore also recharacterize those contributions as Roth contributions, assuming the highly compensated employee also had at least $145,000 in compensation (as indexed).

Conclusion

The rules governing catch-up contributions are about to become much more complicated for plan sponsors. Assuming that Congress fixes its inadvertent error and catch-up contributions are back on the table for 2024, business owners and individual savers should pay close attention to the details to avoid running afoul of the Secure 2.0 rules.


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