@pixienerd44 - I'm also encountering the same exact issue. I'm 100% living in IL. I went to Wisconsin and won $3,337. At the time of getting the W2-G from the casino host they asked if I wanted to take out the taxes. Of course, because I don't want to deal with it later on. I went to Boston later that month and also won an additional $5,000. When filling out the state return forms thankfully Boston, MA. shows I owe like $250 give or take. Then, once I enter in the Wisconsin state return form the number skyrockets and claims I owe over $9,000. Ya....that's not happening! I also have W2-G's from Vegas and it's also coming back correctly. I have ZERO clue what's going on with Wisconsin.
