- Retirement Learning Center - https://retirementlc.com -

Can a plan sponsor merge 401(k) and 403(b) plans?

“I have at least one of my plan sponsor clients who has both a 401(k) plan and a 403(b) plan. Could my client merge the two plans in order to consolidate the assets?”

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 and qualified retirement plans. We bring Case of the Week to you to highlight the most relevant topics affecting your business. A recent call with an advisor in New York is representative of a common inquiry involving the merging of retirement plans.

Highlights of Discussion


While there are similarities between a 401(k) plan and 403(b), the IRS treats them as unlike plans and, therefore, incompatible, for the purpose of plan-to-plan transfers or mergers. Participant rollovers, on the other hand, are potentially possible between the two.