Dividing Employee and Employer Contributions
Employee deferrals to a 401(k), including catch-up contributions, are usually 100% vested immediately, meaning they’re eligible to be divided in a QDRO without restriction. Employer contributions, however, often follow a vesting schedule. If the participant spouse is not fully vested at the time of divorce, only the vested portion can be divided.
The QDRO should clearly specify whether it covers only vested funds as of the date of divorce or vests additional funds as the participant becomes entitled. If this isn’t addressed correctly, the alternate payee could receive more or less than intended.

