Illinois Department of Revenue
Software Developers

Electronic Filing for Individual Income Tax (2014 Processing Season)

Electronic Return Originators (ERO’s) and transmitters are not required to submit a separate Illinois enrollment application for authorization to file Illinois Individual Income Tax Returns electronically. e-File providers approved in the IRS Electronic Filing Program are automatically enrolled in the Illinois program. New software developers need to submit Form IL-8633-I, Application to File Illinois Individual Income Tax Returns Electronically for Software Developers. Software developers are required to test their product and have it approved by Illinois. Software developers should call 217 524-4767 when they are ready to begin testing or have questions.

Important Program Information

2013 IL-1040 for Software Developers

Answer Center
Quick Links
Information For
About IDOR