Employee and Employer Contributions
401(k) plans often contain both employee contributions (from the participant’s paycheck) and employer contributions (matching or discretionary). When dividing assets, each source can be addressed separately in the QDRO. Typically, any contributions made during the marriage—whether by the employee or employer—are considered marital property.
Clarify in the QDRO whether the alternate payee is receiving a flat dollar amount, a percentage, or a formula-based share (such as time rule). Also specify if only vested employer contributions are subject to division, or if forfeitable/non-vested benefits are to be excluded.

