Employee and Employer Contributions
With most 401(k) plans, including the First Class Nurses 401(k) Plan, employees contribute pre-tax or Roth after-tax dollars, and employers may provide matching or profit-sharing contributions. A QDRO can specify that only contributions made during the marriage are to be divided—or that the entire account (including post-separation growth) is subject to division.
You’ll also want to look at whether the employer contributions are vested. Unvested contributions may not be divisible in a QDRO, depending on plan rules and timing.

