Employee vs. Employer Contributions
401(k) plans typically consist of two main contribution sources: salary deferrals from the employee and matching or discretionary contributions from the employer. The QDRO should specify how these different types of money will be divided. Will the alternate payee receive a percentage of both, or just the employee deferrals?
This becomes even more important when you’ve got employer contributions that aren’t fully vested. You don’t want to assign funds in a QDRO that the employee participant isn’t legally entitled to yet.

