Employee vs. Employer Contributions
Most 401(k) plans include both employee salary deferrals and employer matching or profit-sharing contributions. It’s common for the QDRO to divide all account components, but it’s critical to spell that out clearly in the order.
Also, some employer contributions are subject to vesting schedules, which means the employee must work a certain number of years before earning full ownership of those funds. Unvested amounts at the time of divorce may be unreachable by the non-employee spouse, depending on plan rules.

