https://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Schedule-CR.p...
you're wrong. it's done on the above schedule where non-illinois gambling winnings are included in both line 15 colums A & B
Do not include any amount in Column B except net operating loss (NOL) carryforwards,
other states’ gambling and lottery winnings, and recoveries of items
deducted in prior years.
line 43 column B is divided by colum A both include non-illinois gambkling winnings
skip lines 44 through 50 assuming your a full-year illinois resident
line 51 taxes paid out of state
line 52 tax due IL-1040 line 12
line 53 enter decimal from line 43
line 54 line 52 times line 53
line 55 compare lines 51 and 54 and enter the lesser amount. this is your tax credit
Hope I made you happy by showing that you'll get credit in Illinois for taxes paid on out of state on gambling winnings. Say Thank You.
