1. Employee and Employer Contributions
Most 401(k) plans, including the Upwork Retirement Savings Plan, are funded with both employee deferrals and employer matching or profit-sharing contributions. The QDRO should clearly state which types of contributions are to be divided and on what basis (e.g., 50% of the marital portion).
The marital portion usually includes contributions and earnings made from the date of marriage to the date of separation or divorce—whatever is defined in your local jurisdiction.

