Idaho State Tax Commission

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The Tax Commission has extended the 2020 Idaho income tax filing and payment deadlines from April 15, 2021, to May 17, 2021, to match the extended federal deadline. Idaho’s extension applies to all taxpayers subject to Idaho’s individual income tax (i.e., individuals, trusts, and estates), regardless of the amount owed. Penalty and interest won’t apply if taxpayers file their return and pay the income tax they owe by May 17.

The Tax Commission also extended the deadline to apply for property tax relief programs from April 15 to May 17. The programs include:

  • Property Tax Reduction (circuit breaker)
  • Property Tax Deferral
  • 100% Service-Connected Disabled Veterans Benefit

Latest News

05-13-2021 Need an extension to file your Idaho income tax return?

05-11-2021 Tax Commission opens Lewiston office on May 17

05-11-2021 Tax Commission open regular hours in Coeur d’Alene on May 17

05-11-2021 Tax Commission open regular hours in Twin Falls on May 17

05-11-2021 Tax Commission extends May 17 hours in eastern Idaho offices

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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.