1. Employee and Employer Contribution Division
Many people think the entire account balance is divided in half, but it’s not that simple. You need to differentiate between employee contributions (what the participant puts in) and employer contributions (what the company contributes). Only the portions accrued during the marriage are typically divided.
If employer contributions have a vesting schedule—and many do—you’ll also need to determine how much of those contributions the participant is entitled to keep versus how much can be shared with the alternate payee.

