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After-Tax Contribution Limits in 401(k) Plans

“What are the considerations for a 401(k) plan participant who wants to “max out” his/her after-tax contributions in the plan?”

ERISA consultants at the Retirement Learning Center Resource Desk regularly receive calls from financial advisors on a broad array of technical topics related to IRAs, qualified retirement plans and other types of retirement savings plans. We bring Case of the Week to you to highlight the most relevant topics affecting your business. A recent call with a financial advisor from Ohio is representative of a common inquiry related to after-tax contributions in 401(k) plans.

Highlights of Discussion


Roughly one-third of 401(k) plans today offer participants the ability to make after-tax contributions.[1] [4]  While this may be viewed as a benefit from many perspectives, there are several important considerations of which plan participants must be aware.

[1] [5] Plan Sponsor Council of America, 59th Annual Survey; and Retirement Learning Center Plan Document Database, 2018