Employer Contributions and Vesting Schedules
401(k) plans often include both employee and employer contributions. While the employee’s contributions are always 100% vested, employer contributions may be subject to a vesting schedule. For example, full ownership of these funds may occur over a period of years—meaning unvested funds could be forfeited if employment ends before full vesting.
If you’re dividing a 401(k) in a QDRO, unvested amounts usually cannot be awarded to the alternate payee (typically the non-employee spouse). Make sure your attorney knows whether the employee spouse is fully vested—because assuming all funds are available for division can lead to unexpected shortfalls.

