Employee vs. Employer Contributions
401(k) plans often include both employee deferrals and employer matching or profit-sharing contributions. While most employee contributions are fully vested right away, employer contributions might be subject to a vesting schedule. This means the participant may not be entitled to 100% of the employer match.
When you’re dividing the account, be clear in the QDRO about whether you’re splitting only the vested portion or some other amount. Unvested funds typically revert to the plan if the employee leaves the company before being fully vested.

