The first phase of the prison reform movement, 1870 to 1900, began in the Midwest. Michigan led the way by establishing a prototype of the women's reformatory in the late 1860s.as a movement to reform the conditions under which women were incarcerated. This effort, which began about 1870, continues to influence women's prisons today.
Booklet IL-700-T (R-12/16) (Effective January 1, 2017) Page 5. Illinois Income Tax withholding at 3.75 percent (.0375) Based on allowances claimed on Form IL-W-4, Illinois Withholding Allowance Certificate.
Illinois' maximum marginal income tax rate is the 1st highest in the United States, ranking directly below Illinois' %. You can learn more about how the Illinois income tax compares to other states' income taxes by visiting our map of income taxes by state. The Illinois income tax was lowered from 5% to 3.75% in 2015. Previously, the tax rate was raised from 3% to 5% in early 2011 as part of a statewide plan to reduce deficits.