Illinois Administrative Code
Title 86 - REVENUE
Part 105 - ELECTRONIC FILING OF ILLINOIS INDIVIDUAL INCOME TAX RETURNS
Subpart C - APPLICATIONS
Section 105.300 - General Information
Universal Citation: 86 IL Admin Code ยง 105.300
Current through Register Vol. 48, No. 38, September 20, 2024
a) Generally, previous applicants will be issued a Department information update form (EFS-15). Follow instructions included with the form and respond only when changes are necessary.
b) New applicants must submit application Form IL-8633.
c) Use only the official Form IL-8633 or a substitute form that duplicates the application in format, language, content, color and size.
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