1. Contributions: Employee and Employer Portions
The first step is to distinguish what funds are subject to division. The Nanotronics Imaging, Inc.. 401(k) Plan likely includes both employee salary deferrals and employer contributions. While employee deferrals are always fully vested, employer contributions may be subject to a vesting schedule—which means the alternate payee (the former spouse) only has rights to the vested portion as of the division date.

