Employee and Employer Contributions
Most 401(k) plans—especially those offered by corporations—include a mix of employee salary deferrals and employer matching contributions. The QDRO must specify whether the alternate payee (usually the non-employee spouse) receives only the vested portion or a portion of all contributions made during marriage.
Employer contributions often have a vesting schedule attached. If some of those employer contributions are not yet vested at the time of divorce, they may not be considered marital property. That’s why it’s important to get a breakdown of the vested versus unvested balance before drafting the order.

