Employee vs. Employer Contributions
In most 401(k) plans, the employee contributes through payroll deferrals, and the employer may make matching or discretionary contributions. The QDRO should specify whether you’re dividing just the employee’s contributions or also the employer’s.
If vesting schedules apply (which is common with Crown castle Inc. 401(k) plan as a corporation), unvested employer contributions may not be available to divide. It’s critical to find out the employee’s vesting status as of your marital cut-off date to avoid confusion or disputes down the line.

