1. Contributions: Employee vs. Employer
401(k) plans typically include employee deferrals (what the participant contributes out of their paycheck) and employer contributions (such as match or discretionary amounts). Both can be subject to division in a QDRO, but not always equally:
- Employee contributions are fully vested and generally divided based on date-of-marriage to date-of-separation or divorce.
- Employer contributions may be subject to a vesting schedule. Only the vested portion can be divided.
It’s critical your QDRO specifies whether the division includes only marital contributions or all assets as of a certain date. Failure to clarify this can result in late-stage disputes.

