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Telecommunications Excise Tax Forms

Effective July 1, 2025, the state Telecommunications Excise Tax rate includes the state 9-8-8 Suicide and Crisis Lifeline surcharge. See FY 2025-26, Telecommunications Excise Tax Rate Change, Effective July 1, 2025.

Check back soon for updated forms and instructions.

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

 

Name Instructions Description
RT-2   Telecommunications Tax Return (R-06/25) 
Revised instructions available soon.
RT-2-X   Amended Telecommunications Tax Return (R-06/25)
Revised instructions available soon.
RT-2-M   Telecommunications Tax Schedule (R-06/25) 
Revised instructions available soon.
RT-12   Request for Determination of Proper Tax Jurisdiction (R-04/10)
REG-1-T   Telecommunications Tax Location Information (N-04/10)