Springfield (AP) – Voters will decide whether to change Illinois’ income-tax structure after the House approved a constitutional amendment on Gov. J.B. Pritzker’s graduated tax proposal. The House voted 73-44 Monday to put the question on the November 2020 ballot. It needed 71 votes. Voter approval would mean eliminating the current flat-rate tax of 4.95%. Democratic Pritzker intends that a progressive structure would increase taxes on incomes higher than $250,000. Pritzker says 97 percent of taxpayers would pay no increase in taxes. The amendment does not specify what rates would apply to income levels. That must come in separate legislation.