I called Wisconsin and asked them. The expert said that the loss has to come through the Federal return. There is no spot on the Wisconsin return to enter gambling losses. So, that leaves you in a spot where you are left having to report the W2G as is.
The expert referenced https://www.revenue.wi.gov/DOR%20Publications/pb600.pdf
I do think that it might be still good to call Wisconsin and see if they suggest a work around. Really, they are the best to work with!! I love calling the DOR WI. They are so friendly.
Let me know what you find!!
KatherineS63
