Employer Contributions and Vesting Schedules
This plan falls under a “safe harbor” 401(k), which typically includes fully vested employer contributions. But don’t assume that all employer contributions are yours to split. Some plans also include non-safe-harbor matching or profit-sharing contributions that are subject to a vesting schedule.
Unvested amounts will be forfeited if the employee leaves before fully vesting. That means you must clarify in the QDRO that only the vested portion is divided—or that the alternate payee’s share is recalculated if amounts are forfeited later.

