INCOME TAX RATES Senate SponsorsSen. Kwame Raoul and Daniel Biss-Michael Noland 1/13/2015SenateSession Sine Die ILCON Art. IX, Sec. 3 Proposes to amend the Revenue Article of the Illinois Constitution. Removes a provision that provides that a tax on income shall be measured at a non-graduated rate. Provides that, for any income tax imposed upon corporations, the rate shall not exceed the weighted average rate imposed on individuals by more than a ratio of 8 to 5. Effective upon being declared adopted. 2/15/2013SenateFiled with Secretary 2/15/2013SenateReferred to Assignments 2/19/2013SenateAdded as Co-Sponsor Sen. Daniel Biss 2/26/2013SenateAdded as Chief Co-Sponsor Sen. Michael Noland 3/28/2014SenateAssigned to Executive 3/28/2014SenateTo Subcommittee on Constitutional Amendments 4/3/2014SenatePostponed in Executive Subcommittee on Constitutional Amendments 1/13/2015SenateSession Sine Die