It is important to note that the rules from SECURE Act 1.0 (Section 112) pertaining to long-term part-time employees remain in effect, regardless of the changes brought by SECURE Act 2.0 (Section 125), which reduced the time period of employment from three consecutive years to two.
With SECURE Act 1.0, if you have employees who have worked more than 500 hours for three consecutive years (2021, 2022, and 2023), they must be permitted to enter the 401(k) portion of your plan on January 1, 2024. You do not, however, need to offer them employer contributions unless they meet those eligibility rules.
Regarding excluded employees, there are two types: class exclusions and service exclusions. Class exclusions, such as “all Carlsbad office employees are excluded,” can continue as is. However, service exclusions, like “all temporary workers who work less than 750 hours,” may now require inclusion in the plan starting January 1, 2024.
Moving forward, under SECURE Act 2.0, the time period is reduced to two consecutive years. Employees who work more than 500 hours for two consecutive years (2023 and 2024) become eligible for the 401(k) plan on January 1, 2025. Class and service exclusion rules, as well as employer contribution rules, remain applicable.