Yes. You will have to file a WI nonresident return to recover the erroneous withholdings. What matters is where you earned the income—not where your employer is located.
On the nonresident return, you'd declare earnings of 0 so you can get a full refund for the taxes your employer withheld.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
