Withholding Tax Forms

Withholding Tax (Payroll) - IL-941

  • 2018 Tax Year (For withholding taxes 01/01/2018 through December 31, 2018)
  • 2017 Tax Year (For withholding taxes 01/01/2017 through December 31, 2017)
  • 2016 Tax Year (For withholding taxes 01/01/2016 through December 31, 2016)
  • 2015 Tax Year (For withholding taxes 01/01/2015 through December 31, 2015)
  • 2014 Tax Year (For withholding taxes 01/01/2014 through December 31, 2014)
  • 2013 Tax Year (For withholding taxes 01/01/2013 through December 31, 2013)
  • 2012 Tax Year (For withholding taxes 01/01/2012 through December 31, 2012)
  • 2011 Tax Years and Prior (For withholding taxes prior to 01/01/2012)

For information and forms related to unemployment insurance tax, visit the Illinois Department of Employment Security’s website at ides.illinois.gov