Idaho Tax Filing
How to File Your Idaho taxes
If you are married and file jointly with your spouse, or if you are head of household, the rates remain unchanged, but the income limits double. Keep in mind that the respective amounts change every year, so you should check the Idaho State Tax Commission website for the most recent version of the rates.
You must file your Idaho taxes by April 15.
In Idaho, social security and benefits from railroad services are not taxed. Benefits from civil service or military retirement are not taxed either, for people above the age 65 (or 62 if disabled).
If you want to claim a grocery tax credit you should add Form 24 to your tax return. As an Idaho resident, you can also claim refunds for taxes paid in a different state, as well as make donations to educational, non-profit, and rehabilitation organizations.
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Idaho Tax Forms
- Idaho Tax Booklet - Idaho Individual Income Tax Booklet
- Idaho Form 43 - Idaho Part-Year Resident & Non-resident Income Tax Return
- Idaho Form 40 - Idaho Individual Resident Income Tax Return
- Idaho Form 39R - Idaho Supplemental Schedule
- Idaho Form 75 - Idaho Fuel Tax Refund Worksheet
- Idaho Form 51 - Idaho Estimated Payment of Individual Income Tax
- Idaho Form 49ER - Idaho Recapture of Qualified Investment Exemption From Property Tax
- Idaho Form 44 - Idaho Business Income Tax Credits and Credit Recapture
Determine Your Residency Status
The amount of your taxes depends on your residency status, so check below to see which category you fall in.
You Are a Resident of Idaho
When are you an Idaho resident? You are a resident if you had a home in Idaho for the entire tax year or if you stayed in Idaho for more than 270 days. Also, if you consider Idaho as the place where you return after being away, and as the main point for your financial, social and family life, you are an Idaho resident.
If you are an Idaho resident and filed a federal tax return for any other purpose than self-employment tax, you have to file your taxes with Idaho. Another case when you have to file resident taxes with Idaho is if you earned more than the allowable amount in the 2019 Idaho Individual Income Tax instructions, which can be downloaded above.
Residents have to file their tax returns using Form-40 (see the 2019 Idaho Individual Income Tax Form-40 instructions above).
You Are a Part-Year Idaho Resident
You are considered a part-year resident if you moved in our out of Idaho during the past tax year. Even if you came back to Idaho after a temporary leave, or if you left Idaho temporarily, you are still considered a part-year resident.
If you are a part-year resident and earned more than $2,500 from any source while a resident, or from Idaho sources while a nonresident, you must file your nonresident tax return with Idaho. You can do that by filling in Form-43 (you can download the 2019 Instructions for filing Form-43 above).
You Are an Idaho Resident Who Works in a Different State
If you are an Idaho resident but worked in a different state, you will be taxed on that out of state income, as Idaho taxes its residents no matter the source of their earned income. However, because the out of state income can be taxed by the state where you work as well, you have to think about avoiding dual taxation. You can claim an Idaho tax credit by filing the Idaho resident return (Form-40), the Idaho Supplemental Schedule (Form-39R), and attaching a copy of the tax return filed with the other state.
You Are a Nonresident Who Worked or Sold Property in Idaho
If you resided outside Idaho for the whole past tax year, you are a nonresident of Idaho. Even if you are a resident of Idaho, you will become a nonresident if you live outside Idaho for more than 445 days in a 15-month period and if after this 15-month period you have spent less than 60 days in Idaho.
You are also a nonresident if neither you nor your family resided in Idaho for any part of 2019 and did not claim Idaho as a domicile for your federal tax return. Another condition for qualifying as a nonresident is that you do not hold an elective or appointed office of the U.S. Government (senator, for instance), with the exception of the armed forces or U.S. Foreign Service jobs, and you do not work for a U.S. senator or representative.
If you earned at least $2,500 from sources in Idaho, you have to file a return with Idaho.
As a nonresident working in Idaho, you need to file your taxes using Form-43 (see the 2019 Idaho Individual Income Tax instructions above).