Employee vs. Employer Contributions
When dividing a 401(k) like the Marter Sorting 401(k) Plan S, it’s important to determine what portion of the account should be shared. Typically, all contributions made during the marriage—and the growth on those funds—are considered marital property. But here’s where it gets tricky: While employee deferrals are immediately vested, employer contributions might follow a vesting schedule.
In the absence of full vesting, the alternate payee (often the non-employee spouse) won’t receive a share of employer contributions that are forfeited after divorce. Your QDRO must clearly address whether unvested amounts are included or excluded from the division.

