Illinois State Withholding Rate Increased
Posted on January 31, 2011
On January 13, 2011, Illinois Governor, Pat Quinn, signed into law a 66% state income tax increase effective immediately. The personal income tax rate will increase from 3.0% to 5.0%.
Employers are not required to adjust employee's paychecks already paid in January. Paycor has updated its system to reflect the new rate of 5.0% effective immediately.