1. Employee and Employer Contributions
In most 401(k) plans, employee contributions (the amounts the participant personally funded) are fully vested and can be divided. Employer contributions, however, could be subject to a vesting schedule.
If the participant spouse isn’t fully vested at the time of divorce, the QDRO should clearly state whether the alternate payee receives only the vested portion or a proportional share of future vesting. Poor wording here leads to disputes or rejected QDROs.

