Employee vs. Employer Contributions
It’s crucial to distinguish between what your spouse contributed and what their employer contributed. Employee deferrals (what was deducted from paychecks) are always marital assets if earned during marriage. But employer contributions may be subject to a vesting schedule—meaning some of them might not be fully “owned” by your spouse yet.
A good QDRO will account for that distinction, so you’re not awarded funds that may later be forfeited.

