Most Popular Forms
- Form ID-MS1 Employee’s Idaho Military Spouse Withholding Exemption Certificate
- Form 40PA Idaho Payment Agreement Request
- Form 24 Idaho Grocery Credit Refund
- Individual Income Tax Instructions booklet (with rate schedules)
- Form 40 Idaho Individual Income Tax Return
- Power of Attorney
- Form ST-101 Sales Tax Resale or Exemption Certificate
- A Guide to Idaho Income Tax Withholding
Quick Picks
- Low income? Elderly? Get free tax help!
- Free individual income tax filing
- 2011 individual income tax forms
- Get an Idaho grocery credit refund even if you aren’t required to file an income tax return
- New and updated: Guide to Income Tax Withholding
- E-file Forms 967, W-2, or 1099 information returns
- Military or military spouse? See our Military information page
- Calculate your penalty and interest with our Penalty & Interest Estimator
This green arrow indicates that clicking that link will take you off our website.