The proposed amendment grants the State authority to impose higher income tax rates on higher income levels, which is how the federal government and a majority of other states do it. The amendment would remove the portion of the Revenue Article of the Illinois Constitution that is sometimes referred to as the "flat tax," that requires all taxes on income to be at the same rate. The amendment does not itself change tax rates. It gives the State the ability to impose higher tax rates on those with higher income levels and lower income tax rates on those with middle or lower income levels.