Idaho State Tax Commission

Idaho State Tax Commission

Draft forms for Fuels tax: We want your feedback!

We've posted online drafts of the following Fuels tax forms and instructions. We invite your feedback on them. Please go to our Draft Forms webpage and provide any comments by Wednesday, December 5, 2018.

Fuels Tax Forms

Form 3150, International Fuel Tax Agreement (IFTA) Report.  We added two new fuel types to the form: electricity and hydrogen. We added more instructions for the miles per gallon calculation.

2019 Return Instructions

Form 3150 Instructions, International Fuel Tax Agreement (IFTA) Report. The instructions were streamlined. More instructions are added to the IFTA Handbook, Reporting section.

Posted 11-29-2018
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This information is for general guidance only. Tax laws are complex and change regularly. We can't cover every circumstance in our guides. This guidance may not apply to your situation. Please contact us with any questions. We work to provide current and accurate information. But some information could have technical inaccuracies or typographical errors. If there's a conflict between current tax law and this information, current tax law will govern.