Illinois Administrative Code (Last Updated: February 21, 2024) |
TITLE86. REVENUE |
PART105. ELECTRONIC FILING OF ILLINOIS INDIVIDUAL INCOME TAX RETURNS |
SUBPARTC. APPLICATIONS |
§105.300. General Information
Latest version.
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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.
(Source: Amended at 17 Ill. Reg. 18118, effective October 4, 1993)