1. Employer Contributions and Vesting Schedules
One common pitfall is assuming that all funds in the 401(k) account belong to the employee. That’s not always the case. For example:
- Employee contributions are immediately 100% vested.
- Employer contributions often follow a vesting schedule (e.g., 4 years of service for full vesting).
Unvested employer contributions are typically forfeited if the employee leaves before vesting. A well-drafted QDRO for the Butterfield Market 401(k) Plan should clearly identify the division of vested vs. unvested contributions as of the cutoff date (usually the date of separation or divorce).

