senator harmon's proposal was estimated to reduce the tax bill of the illinois median taxpayer (making $55,317 per year) by $303 per year versus the 5 percent rate. allowing 2014 law to continue would reduce the median taxpayer's bill by $689 per year, an additional savings of $386 versus the harmon rates. other speculative proposals had called for top marginal rates as high as 11 percent, but they were not introduced in the state legislature.