1. Employee vs. Employer Contributions
In 401(k) plans, contributions come from both the employee and the employer. A QDRO can divide:
- All employee contributions and any investment gains/losses on those contributions
- Employer contributions that are vested
If the participant is not fully vested in the employer match, the non-vested portion typically cannot be divided unless the employee has met the required time-in-service under the plan rules at the time of QDRO approval.

