Employee and Employer Contributions
The QDRO should clearly state what portion of the account belongs to the alternate payee. Typically, this is fifty percent of the marital portion—which often runs from date of marriage to date of separation. This includes employee contributions (what the plan participant contributed from their paycheck) and may include employer contributions.
However, employers often impose vesting schedules on their contributions, which affects how much of their match is actually “owned” by the employee at the time of divorce. If you’re not aware of the plan’s vesting rules, you could accidentally assign money that the participant hasn’t actually earned yet.

