Employee vs. Employer Contributions
Most 401(k) plans consist of both employee and employer contributions. A typical QDRO will divide the entire account—whether it includes just employee deferrals or also contains employer matching contributions—based on either a dollar amount or percentage.
Based on what’s fair in the divorce settlement, the QDRO may order that the alternate payee receive 50% of the marital portion of the account (i.e., what was earned during the marriage).

