Employer Contributions and Vesting
Because this is a safe harbor 401(k) plan, the employer is legally required to contribute and those contributions are generally 100% vested immediately. However, it’s important to double-check with the plan administrator to confirm whether all contributions are vested or if some employer funds follow a specific vesting schedule for plan years prior to safe harbor treatment.
QDROs only divide the vested portion of the plan. If the participant isn’t fully vested in their balance—or wasn’t at the time of separation—it could affect how much goes to the alternate payee (usually the ex-spouse).

