Employee and Employer Contributions
401(k) accounts generally include both employee contributions (the portion the employee elects to defer from their salary) and employer contributions (such as matching funds or profit-sharing). In divorce, a QDRO can award part or all of either type of contribution to the alternate payee. It’s critical to distinguish these sources of funds and specify how each is to be divided.
Keep in mind, employer contributions may be subject to a vesting schedule, which leads us to our next point.

