Vesting and Forfeitable Employer Contributions
While your spouse’s personal contributions to the 401(k) are always 100% theirs, employer-matched funds might not be. 401(k) plans often have vesting schedules—such as becoming 20% vested per year. If your soon-to-be-ex has only worked at Mercantile Bank for a few years, they may not be fully vested in employer contributions. A QDRO can’t award you more than what is vested.

