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Aviation Fuel Sales and Use Tax Filing
Use MyTax Illinois to electronically file Form ST-70, Aviation Fuel Sales and Use Tax Return, and Form ST-70-X, Amended Aviation Fuel Sales and Use Tax Return. These forms are not available for download.
| Form | Description |
|---|---|
| ST-70-C | Sustainable Aviation Fuel Purchase Credit Certification |
| ST-70-PROD | Producer Certification of Sustainable Aviation Fuel (SAF) |
| ST-70 Instr. | Aviation Fuel Sales and Use Tax Return Instructions Note: For reporting periods July 2023 and after. HTML |
| ST-70-X Instr. | Amended Aviation Fuel Sales and Use Tax Return Instructions Note: For reporting periods July 2023 and after. HTML |
| ST-71 Instr. | Multiple Site Form Instructions Note: For reporting periods January 2021 and after. |
| ST-72-Instr. | Sustainable Aviation Fuel Purchase Credit Form Note: For reporting periods July 2023 and after. |
| ST-70 Instr. | Aviation Fuel Sales and Use Tax Return Instructions Note: For reporting periods January 2021 through June 2023. |
| ST-70-X Instr. | Amended Aviation Fuel Sales and Use Tax Return Instructions Note: For reporting periods January 2021 through June 2023. |