Employee and Employer Contributions
Most 401(k) accounts include both employee contributions (which are fully vested) and employer contributions, which may be subject to a vesting schedule. Only vested employer-funded amounts can be divided in a QDRO.
The QDRO must clearly state how both types of funds are to be divided, whether by flat dollar amount, percentage, or an “alternate payee receives 50% of the marital portion” structure. If there’s non-marital or pre-marital interest, that must be noted and excluded.

