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Be alert for fraudulent messages or websites attempting to steal your banking information, login credentials, or credit card details. The Illinois Department of Revenue (IDOR) will never request personal or financial information via text message. To confirm official communications or contact details, always visit https://tax.illinois.gov.

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Electricity Excise Tax Forms

Eligible forms may be filed electronically using MyTax Illinois, a FREE online account management program. 

 

Name Instructions Description
REG-1-D   Electricity Tax Self-Assessing Purchaser
RPU-13 PDF Electricity Excise Tax Return
RPU-13-W   Form RPU-13 Worksheet A and Worksheet B
RPU-13-X PDF Amended Electricity Excise Tax Return
RPU-13-A-X   RPU-13-X Worksheet A and Worksheet B