Employee and Employer Contributions
In most cases, employee contributions (what the participant put in) are 100% vested. That means they’re fully owned and can be legally divided. But employer contributions are another story.
Check the plan’s vesting schedule to see what portion of the employer matches or other contributions are vested. Any nonvested portion typically can’t be awarded in a QDRO—it reverts to the plan if the employee separates.
This makes timing important. If the divorce is finalized before full vesting takes place, the alternate payee loses out on that portion unless the agreement accounts for possible future vesting periods.

