Employee and Employer Contribution Splits
This plan likely includes both employee (participant) deferrals and employer matching contributions. Many people assume they can divide the entire account, but they forget to consider the employer portion might be subject to a vesting schedule.
If your spouse is not fully vested in their account, only the vested portion is available for division. The QDRO needs to account for this, or you may end up with less than expected—or delay the process chasing unvested amounts.

