Employee and Employer Contributions
Most 401(k) plans include both employee contributions (money the employee puts in) and employer contributions (matching funds or profit-sharing). In your QDRO, it’s important to clarify which parts of the account are being divided.
If the account holder was employed for only a part of the marriage, you may need to allocate only the marital portion of the account, using a coverture formula (also known as a time rule calculation). Typically, the marital portion is defined as contributions and investment gains/losses during the marriage.

