Employee and Employer Contributions
Many people think their 401(k) balance is 100% theirs—but employer contributions may not be fully vested, especially if separation occurred early in employment. While the employee’s own salary deferrals are always fully owned (vested), company matches might be forfeitable. That becomes an issue if you try to divide a portion of the total balance that hasn’t yet vested.
For example, if the account has $60,000—$40,000 in employee contributions and $20,000 in employer contributions—and only half the employer match is vested, then only $50,000 is actually subject to division. Your QDRO needs to clearly define whether the awarded amount includes or excludes unvested money.

