@pixienerd44
Usually, the issue is one in which you have not gone thru the entire WI Non-Resident state's interview yet. During that WI interview you must "Allocate" what income is subject to WI taxes (i.e. only the WI gambling income). Until you do that, WI assumes all your yearly income is WI-taxable.
So, as you prepare your Federal taxes, and add income there (including add/remove the MI-W-2G)...the WI taxes due change too....because you have not done the allocations yet.
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the best procedure is to fully prepare your Federal forms, and ignore the states parts until every scrap of your Federal income, deductions, Credits are complete and ready to file.....every scrap (but not yet filed)
Then go thru the WI non-resident interview to do the allocations to indicate just that gambling income as WI-taxable....then your MI state resident tax return last.
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If you go back to the Fed forms later, and make any changes in there, then the allocations you may have done previously for WI, may no longer be valid (depends on what you change), and you might have to go thru the WI interview, from start to finish again.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
