Idaho State Tax Commission

Tax Commission News Release

Changes for 2018 Idaho income tax returns

BOISE, IDAHO — Jan. 24, 2019 — Taxpayers will see big differences when they file their Idaho income tax returns for 2018 due to recent changes to tax laws. Here are some of the highlights.   

  • Standard deduction increased. The standard deduction has nearly doubled, increasing to $12,000 for single filers and $18,000 for head-of-household filers. Married couples who file a joint return get a $24,000 deduction.  
  • Exemptions eliminated. Tax filers no longer get an exemption for themselves or their dependents.
  • New child tax credit added. A new Idaho child tax credit of $205 is available for children 16 and under as of December 31, 2018. The credit helps offset the loss of the dependent exemption.  
  • Itemized deductions changed. Most itemized deductions have been capped or eliminated.
  • Income tax rates reduced. The state income tax rates have been reduced. The top rate now is 6.925% instead of the previous 7.4%. 

New tax laws also expanded one credit and increased a deduction. The state credit for charitable contributions now includes donations to medical residency organizations that are in Idaho. And the amount of expenses Idaho taxpayers can deduct when they adopt a child has increased to $10,000. It was $3,000.

Visit for more information about the tax changes. For tax help, call (208) 334-7660 in the Boise area or toll free at (800) 972-7660.


Posted 01-24-2019
tax pros news release general

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.