Article I of the United States Constitution created and empowered our legislative branch of government. The United States Congress leads the legislative branch. Congress includes both the House of Representatives and the Senate. Generally speaking, Congress makes our laws.
Illinois income tax is levied at a flat 3% rate regardless of income level. A deduction of $2,000 is allowed for each exemption claimed on your federal return. You can also receive an additional $1,000 exemption if you or your spouse is 65 or older, legally blind, or both.
State Income Tax Rates. Illinois State Income Tax Rates - 2017 State Taxes Guide. While the federal tax rates are the same for all fifty states, the various states are left to determine what their state income tax rate should be and those numbers are all over the map. Latest Illinois State Income Tax Rates Forum Posts.