Employee vs. Employer Contributions
Employee contributions (what the plan participant defers from their paycheck) are always 100% vested and divisible at the time of divorce. However, employer contributions—particularly those made as profit-sharing or matching contributions—may be subject to a vesting schedule.
If the employee isn’t fully vested, any unvested amounts should not be included in the division. Your QDRO needs to clearly identify and restrict division to “vested” account balances as of a certain date (usually the date of separation or divorce judgment).

