Electronic Filing for Income Tax (2012 Processing Season)

Electronic Return Originators (ERO’s) are not required to submit a separate Illinois enrollment application for authorization to file Individual Income Tax Returns electronically. Internal Revenue Service (IRS) e-File providers with an approved electronic filer identification number (EFIN) are automatically enrolled in the Illinois program. New software developers and direct transmitters need to submit Form IL-8633-I, Application to File Illinois Individual Income Tax Returns Electronically for Software Developers and Transmitters.

Important Program Information

Program Information
Calendar
Highlights
Reminders
Electronic Funds Transfer Information
Contact IDOR/Mailing addresses

2011 Booklets

IL-1346, Record Layout (Final)
IL-1346, Nature of Changes Final)
IL-1346, Electronic Return File Specifications andRecord Layouts Guide
IL-1347, Electronic Filing Package (Draft 2)
IL-1348, Electronic Filing Error Reject Codes (Updated Final 02/01/2012)
IL-1348, Nature of Changes (Updated Final 02/01/2012)

2011 Electronic Filing Specs/Delimiters

IL-1040
IL-1040 Schedule CR
IL-1040 Schedule G
IL-1040 Schedule ICR
IL-1040 Schedule M
IL-1040 Schedule NR
IL-2210
IL-4562
Schedule K-1-P
Schedule K-1-T