Under the terms of Illinois’ largest-ever tax increase law (passed by legislative Democrats in a 2011 lame-duck session and signed by Gov. Quinn) the income tax paid by individual Illinois residents is scheduled to be partially rolled-back from 5% to 3.75% on January 1, 2015. The corporate income tax rate will be rolled back at the same time.
Read more about the tax rollback:
Illinois employers: Don't forget income-tax rollback
Illinois tax increase to roll back as planned
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