1. Dividing Employee and Employer Contributions
When dividing a 401(k), it’s not just about splitting the number you see on a statement. You’ve got two types of contributions: what the employee contributed, and what the employer may have matched or added. Only the vested portion of the employer contributions can be divided unless the plan rules (and the QDRO) say otherwise.
The QDRO must clearly state whether the alternate payee (the non-employee spouse) is receiving a portion of just the employee’s contributions, the employer’s contributions, or both. If you don’t address this clearly up front, it can delay approval or affect the amount transferred.

