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.
Income Tax returns and schedules. The Illinois Business Income Tax rate for tax years. ending on or after December 31, 2015, is 5.25 percent. (.0525) for taxpayers taxed as corporations, and 3.75. percent (.0375) for taxpayers taxed as trusts or estates. The instructions for overpayments to be carried forward.
The tax rate there is the total of the 6.25% Illinois state sales tax rate, the .75% Will County Rate and 1.75% Joliet rate, for a total of 8.75% sales tax. Since Illinois is an origin-based state, you would charge all of your buyers in Illinois that 8.75% rate.