1. Contribution Types: Employee vs. Employer
401(k) plans can build value in two ways: an employee can defer part of their salary into the plan (employee contributions), and the employer may also contribute (often as matching funds). But during divorce, how these contributions are divided depends on two things:
- When the contributions were made
- Whether the employer contributions are vested
Only vested amounts are usually divisible in a QDRO. If the participant isn’t fully vested at the time of divorce, the alternate payee may receive a smaller share. The plan’s vesting schedule determines what portion of the employer’s contributions are available to divide.

