Employee vs. Employer Contributions
The employee’s own contributions are usually 100% vested and easy to divide. However, employers may contribute matching or profit-sharing amounts that follow a vesting schedule. You’ll need to find out how much of those employer contributions are actually owned by the participant as of the division date.
Unvested funds typically aren’t included in the QDRO, although specific language is sometimes used to award future vesting to the alternate payee if the parties agree.

