State tax officials say they can't back one option to simplify Ohio's income tax. The Ohio Department of Taxation says a plan before lawmakers would save about one (b) billion dollars for those making more than 100-thousand dollars a year. The agency says the burden would shift to those making middle incomes, and unfairly give them large tax increases for small income raises. Lawmakers are looking for a way to reduce the nine state income tax brackets. The plan by a group of House Republicans also would eliminate the income tax for married joint filers making less than 20-thousand dollars a year. It would cut the highest tax rate nearly in half to three-point-nine percent, but everyone making more than 45-thousand dollars a year would pay it. Republicans stress the plan isn't complete.