1. Employee vs. Employer Contributions
Most 401(k) plans have two sources of funds—money the employee contributes (deferred from wages), and money the employer contributes (via matches or profit sharing). In divorce, both types are usually split. But here’s where it gets tricky: employer contributions often come with vesting schedules.
If the employee spouse hasn’t met the vesting schedule by the date of divorce or the date specified in the QDRO, the non-vested portion may be lost.

