- An Idaho resident
- A part-year Idaho resident with income from Idaho sources or income earned while an Idaho resident
- A nonresident of Idaho with income from Idaho sources
You can choose to file electronically, saving time and postage.
- These tax software packages enable you to prepare and electronically file your federal and Idaho individual income tax forms for free if you meet certain criteria.
If you don’t qualify for free filing, or don’t want to use tax software:
- Find all current-year Idaho individual income tax forms here.
- Find all prior-year Idaho individual income tax forms here.
Need more time to file? See if you qualify. Read our guide on valid extensions for filing.
You must file a return within three years of its original due date (often April 15), or any refund you’re owed for that return will expire. You should still file your tax return if it’s past the three-year limit, but we won’t be able to issue any refund.
Popular credits and deductions
Double-check your tax return before you mail it or submit it through an online e-filing service. (Note: An amended return can delay completion of other returns we’re processing.)
You can correct a return you’ve already filed by filing an amended return. Follow these steps:
- Check which return you originally filed – Form 40 or Form 43. Download a blank copy.
- Check the AMENDED box at the top of the blank return.
- Complete the return as it should have been filled out.
- Attach an explanation of why you’re amending the return.
- If you need to, include copies of forms or schedules missing from the original filing.
- If your federal return was amended, attach a copy of Form 1040X.
- Mail your amended return, any supporting documentation and any payment due to:
Idaho State Tax Commission, PO Box 56, Boise ID 83756-0056.
Requirement to file
You’re required to file if your gross income is above a certain amount (see below). Gross income means all income from all sources before applying expenses or deductions. This income includes wages, interest, rents, dividends, gains from property sales, and gross business income.
Read the Idaho Source Income guide and income tax instructions (see next section) for more information.
Idaho residents must file if their gross income for 2022 is at least:
|Age as of the last day of 2022:||Gross income for 2022 is at least:|
|Single – under age 65||$12,950|
|Single – age 65 or older||$14,700|
|Married (filing separately) – any age||$5|
|Married (filing jointly) – both under age 65||$25,900|
|Married (filing jointly) – one age 65 or older||$27,300|
|Married (filing jointly) – both age 65 or older||$28,700|
|Head of household – under age 65||$19,400|
|Head of household – age 65 or older||$21,150|
|Qualifying widow(er) – under age 65||$25,900|
|Qualifying widow(er) – age 65 or older||$27,300|
Part-year Idaho residents
Part-year Idaho residents must file if their total gross income from the following sources combined is more than $2,500:
- All sources while an Idaho resident
- Idaho-source income while a nonresident
Nonresidents of Idaho must file if their total gross income from Idaho sources is more than $2,500.
Keep copies of your tax returns and all supporting documentation for at least seven years.