1. Employee and Employer Contributions
One critical component to watch is how contributions were made. In a typical 401(k) plan:
- Employee deferrals (your own salary contributions) are always 100% vested and divisible
- Employer contributions (such as matching funds) may be subject to a vesting schedule, meaning some may not be considered marital property yet
In a QDRO, we typically only divide the vested portion as of the date of divorce. If a spouse tries to claim unvested employer contributions, the QDRO could be rejected or enforced incorrectly. Always confirm the vesting schedule with the plan administrator.

