1. Employer Contributions and Vesting
Not all retirement funds in a 401(k) are immediately the participant’s to share. Employer matching contributions may be subject to vesting schedules. That means only a portion (or none) of the match might be available for division based on the participant’s years of service.
A well-drafted QDRO will account for this by either including only the vested amount or creating a time-based calculation if vesting can be verified post-divorce.

