1. Employee and Employer Contributions
Most 401(k) plans include two separate types of contributions:
- Employee deferrals: These are elective contributions from the employee’s paycheck. They’re always 100% vested and subject to marital division.
- Employer matching or profit-sharing contributions: These may be subject to a vesting schedule outlined in the plan’s documentation.
It’s critical to identify which contributions were earned during the marriage. Even if the participant continues working after separation, only the marital portion is typically divided.

