Illinois Business Corporate Tax, Illinois Personal Income Tax, Illinois Sales Tax Rates
What is the Illinois Corporate net income tax rate(s)?
9.5% for 2011-2014 tax years
What is the Illinois personal net income tax rate(s)?
5% for 2011-2014 tax years
What is the average Illinois sales tax rate(s)?
8.4%. The state has a 6.25% tax, but the average local tax is 2.15% making a total of 8.4%
Are there standard deductions?
Are there personal exemptions?
What forms do you file for your Illinois taxes?
C corporations: Form IL-1120
Estimated tax payments?
Form IL-1120ES for corporations with more than $400 of tax due. Form IL-1040ES for personal returns with more than $500 estimated tax.
Illinois Department of Revenue:
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Schaumburg, IL 60173