The state of Mississippi held $450 (3%) of my $15K winnings when I won their tournament in November. When I used the tax estimator on H&R Block, it states: State income tax (W-2 box 17) Please note: Not all states tax income. Now, my question is since I don't live in Miss., could I deduct that $450 since the state of Mississippi withheld that from my $15K winnings? In other words, could I use that $450 withheld amount towards filing my taxes in Texas where I live? Thanks in advance!