Employee vs. Employer Contributions
In a 401(k) plan, contributions typically come from both the employee and the employer. A QDRO can divide each or both types of contributions—but there’s a catch: employer contributions are often subject to vesting schedules. If the participant has not met the vesting requirements at the time of divorce, the alternate payee may not be entitled to the full employer matching portion.
For example, if the employer contributions are only 50% vested, the non-vested portion can’t be part of the QDRO because it hasn’t legally been earned.

