Your state of residence would be your resident state as of December 31, 2018. But be sure to indicate in the My Info section that you lived in another state during the year, and identify the other state as Wisconsin.
If your new state has an income tax, you'll be filing a part-year resident in both it and Wisconsin. If it doesn't, you'll be filing a part-year resident return only in WI.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
