Employee vs. Employer Contributions
Most 401(k) plans include contributions from both the employee (through salary deferral) and the employer (through profit sharing or matching). In divorce, both types of contributions may be subject to division, but only contributions made during the marriage are usually considered marital property.
Complications arise when employer contributions are subject to vesting. Unvested amounts may be forfeited if the participant leaves the company, so the QDRO must address whether and how those funds can be shared now or in the future.

