Resources: Other Resources and Links: Illinois Tax Forms

Commonly-used Ilinois tax forms & resources.

• For all tax years:
  
  
  • IL Department of Revenue
    
    
  • Where is my IL Refund?
    Be sure to click on "Where's My Refund?" under the "Inquiries for Individuals" section.
    
    
  • IL-1040-ES - IL Estimated Payments
    
    
  • Other IL forms