File Idaho Taxes & Get Your Idaho Tax Refund Faster
Idaho requires that all native residents, as well as residents who derive income from in-state sources and live in the state part of the year file Idaho income tax returns. People who are not residents must still pay income taxes in the state if they receive income within the state. As of March 6, 2025, Idaho has a flat tax rate of 5.3%.
An Amended Idaho Tax Return
To file an amended return, people must determine if they initially filed a Form 40 or Form 43. Then they must download the same form, fill it out, check the "Amended" box on the form, and submit it. They must file an amended return if they failed to claim income or wrongfully claimed exemptions. They likewise can file an amended return if they are entitled to exemptions, yet neglected to claim them on the initial return.
People who filed an IRS 1040X federal amended return also must file an amended Idaho state return and send in a copy of the 1040X, as well as any W-2 or 1099 forms. People who owe balances are encouraged to remit payment online or send in a check with their completed Idaho income tax returns.
Minimum Income Requirements to File Idaho Taxes
Further, people's incomes must meet minimal requirements before they are required to file. A single person under age 65 must file if he or she has earned $14,600 per year. A person 65 or older must have earned $16,500 before filing. Married couples under 65 filing jointly must have earned $29,200, while couples who are both older than 65 must have earned $32,300. If just one person in the couple is 65 or older, the income limit falls to $30,750.
Married couples filing separately, regardless of age, are required to file when their incomes hit $5 per year or higher. Head of Household filers must file Idaho taxes if they are younger than 65 and make at least $21,900. HOH filers 65 and older must earn $23,850 to file. Widowers and widows 65 and older are required to file if they earn $30,750, while widows and widowers younger than 65 must file if their incomes are $29,200 or more per year. Partial-year and non-resident earners are required to submit a state income tax return if they have earned $2,500 or more from sources inside the state.
Idaho does not require estimated tax payments for individuals; however, those who wish to make payments in advance of future tax debt may do so.
Where's my Idaho tax refund?
To check the status of a refund, a taxpayer can go to: http://tax.idaho.gov/ and scroll to the middle of the page, and click the button marked "Tax Refunds."
Penalty and Interest Estimator
The State Tax Commission has produced a tool for estimating on their website which can help individuals calculate penalties and interest for a variety of taxes, it is located here.
Frequently Asked Questions
How long will it take for me to receive my refund?
If you e-file your return, you'll receive your refund more quickly—you should receive what you're owed in seven to eight weeks. If yours is a paper filing, it could take as long as 11 weeks to get your refund.
Can I file for a state tax extension?
If you qualify, you could get an automatic six-month extension. To qualify, you must have paid:
- 80% of the estimated tax you owe for the previous year
- 100% of the total tax reported on your tax return the year before that—if you didn’t file during that year, you can’t use this method.
With an extension, you could avoid a penalty for late filing, but you’ll owe 6% annual interest on taxes owed after April 15.
Note: States & U.S. territories may make changes to their tax laws with little notice. We do our best to keep this information up-to-date, but it is provided on an "AS IS" basis. For more see our terms.