Employee and Employer Contributions
Most 401(k) plans include both employee deferrals and employer matches. The QDRO must address both. The employee contributions belong to the participant, and employer contributions are often subject to a vesting schedule.
Here’s the challenge: if your divorce covers a time period during which not all employer contributions were vested, the QDRO needs to protect the alternate payee from receiving only a portion of what they’re entitled to—or worse, from relying on amounts that haven’t vested yet and might be forfeited.

