Tax Implications of Wade to Chicago?

So if Wade spurned the heat's 2 year $40M for the Bulls 2 year $47M offer, how much will that cost him in state & city income taxes.  Will his $12M / year in endorsements be sourced to Chicago now?  Is it possible that this decision is actually going to cost him money?  Do NBA players source their income based on the place the game is played?  Are there questions I am missing?