"Can the employer amend the plan to add Roth if the 403(b) plan is structured as not subject to ERISA under the limited involvement safe harbor regulation 2510-3-2(f)? If Roth is not added, then any high earner over the FICA limit cannot do catch-ups. Due to this SECURE 2.0 requirement, I would think adding Roth could be permitted. Any thoughts?"

"Patrick Tool LLC employer is participating in Business 401(k) Plan (MEP plan) effective 01/01/2023. During mid of 2025, Patrick Tool LLC decided to establish new plan and spin off from Business 401(k) Plan and completed the participants cessation on 07/31/2025 and establish new plan as Patrick Tool 401(k) Plan as effective date of 08/01/2025. The first return, it will be short plan year. For the compliance testing whether we required to do two separate testing for two period like 01/01/2025 to 07/31/2025 and 08/01/2025 to 12/31/2025. Since the employer is same whether we have to aggregate both the period data and required to do compliance testing for full plan year under Patrick Tool 401(k) Plan. Even though the plan effective is mid of the plan year, we have to complete the testing based on full year compensation and contribution or else based on the short plan year."

"What are the issues if plan eligibility requirements are liberalized to accommodate a family member and then switched back at a later point in time?"