Employee vs. Employer Contributions
401(k) balances often include both employee contributions (which are immediately 100% vested) and employer contributions (which may vest over a schedule). If your spouse isn’t 100% vested at the time of divorce, the unvested portion may be forfeited and not available for division. It’s important for the QDRO to distinguish between vested and unvested funds and address what happens as future vesting occurs.

