Employee vs. Employer Contributions
401(k) plans are usually funded by both employee deferrals and employer contributions—like matches or profit-sharing. When dividing a 401(k) through a QDRO, it’s crucial to separate these categories. Some employer contributions have vesting schedules, which means they’re not fully owned by the employee unless certain conditions are met (usually years of service).
If the employee spouse isn’t 100% vested in their employer contributions, the unvested portion may be forfeited if they leave employment. A well-written QDRO will account for this to avoid confusion later.

