1. Employee and Employer Contributions
Most 401(k) plans are funded through a combination of employee deferrals and employer matching contributions. In divorce, both are subject to division — but there’s a catch.
- Employee deferrals are always 100% vested and will be divided according to the QDRO-defined formula.
- Employer contributions may be subject to a vesting schedule. That means some of the funds might not belong to the participant yet — and may not be divisible in the QDRO.
It’s important to use a date-of-division formula that accounts only for the vested portion of the account. If the non-participant spouse tries to claim unvested money, the plan administrator will likely deny that request.

