Employer Contributions and Vesting Schedules
Most 401(k) plans include a mix of employee contributions (which are always 100% vested) and employer-matching contributions (which often vest over time). If the employee spouse isn’t fully vested, the non-employee spouse may end up with less than anticipated.
The QDRO should clearly state that only the vested portion as of the cutoff date (usually the date of separation or divorce) will be divided. If not, disputes or denials are almost guaranteed.

