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Illinois State Tax Information


Looking for Alabama state tax information? We provide the latest resources on state tax, unemployment, income tax and more.

Illinois Department of Revenue

Illinois Department of Employment Security

Withholding Requirements:

  • Register new businesses by filing Form REG -1(Business Registration Application)
  • Employee's Illinois Withholding Allowance: IL-W-4
  • Withholding Method = 5%
  • Supplemental Rate = Withhold at 5%

Local Taxes:

Chicago Employer Expense Tax - $2 per month per employee and commission merchant (in excess of 49). As of January 1, 2014 this has been phased out.

State Unemployment Insurance (SUI):

Register as employer by filing Form UI-1 (Report to Determine Liability)
Report quarterly wages and contributions by filing Form UI-3/40 Employer's Contribution and Wage Report) by last day of month following end of quarter.

Wage base is $12,900 for 2013 and $12,960 for 2014
Rates range from 0.550% to 9.45% for 2013 and 0.55% to 8.55% for 2014
New employers use 4.15% for 2013 and 3.95% for 2014.

New construction employer should use 5.250% for 2013 and 5.85% for 2014.
Rates include the 0.550% fund-building factor

State Disability Insurance (SDI):

none

State labor laws:

Minimum Wage - $8.25

Termination Pay - Fired/Quit - next regular payday.

New Hire Reporting:

Employers must report hiring, rehiring, and return reporting to work within 20 days on New Hire Reporting Form to:

Illinois New Hire Directory
P.O. Box 19473
Springfield, IL 62794-9473
312-327-4473
217-557-1947 (fax)

Remit Withholding for Child Support to:

Illinois State Disbursement Unit
P.O. Box 5400
Carol Stream, IL 60197-5400
877-664-5738

Reciprocity States:

Iowa, Kentucky, Michigan, Wisconsin

For paycheck calculation visit the Illinois Paycheck Calculator of PaycheckCity.

Payroll-Taxes.com is a free online resource featuring a compilation of research, collaboration and web tools for use by payroll professionals and more including information about Illinois state tax, articles, federal tax information and state tax information.


 
TAX TIDBIT... To correctly calculate withholding near wage base limits, enter your Gross Salary Year-to-date. It's important for an accurate calculation and is usually found on your last pay stub.