Dividing Contributions: Employee vs. Employer
401(k) plans are typically funded through a combination of the employee’s salary deferrals and employer-matching contributions. During divorce, these contributions are usually divided according to the marital portion—often calculated using a formula based on date of marriage and date of separation.
However, with employer contributions, vesting matters. Only the vested portion of employer contributions is divisible under a QDRO. If your spouse wasn’t fully vested at the time of your separation or divorce, you could lose access to a significant portion of the employer-funded money.

