Employee and Employer Contributions
401(k) accounts typically include both employee deferrals (money the employee contributed from their paycheck) and employer matching contributions. In your QDRO, you’ll need to be clear about whether both types of contributions—and their earnings—are being divided.
In some cases, only the marital portion of the account will be split. That usually includes amounts contributed and vested during the marriage. This can be based on a percentage or a dollar amount as of a certain date, such as the date of separation or divorce filing.

