Idaho State Tax Commission

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Penalty and Interest

Penalty and interest are assessed according to current tax law.

Page last updated August 17, 2021. Last full review of page: April 1, 2019.

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.