Running out of time to file taxes in Idaho? Here’s how to get an extension
Running out of time to file your taxes?
If you need more time to get organized, you have options.
Here’s what to know about filing an extension for your 2025 tax return:
When are taxes due in Idaho?
In Idaho, the deadline to file both state and federal income tax returns for the 2025 tax year is Wednesday, April 15.
Taxpayers who need more time can request a six-month filing extension — but any taxes owed must still be paid by the April deadline to avoid penalties and interest.
This will give you until Oct. 15 to file your federal tax return without facing any penalties, according to the Internal Revenue Service.
Who is eligible for a tax filing extension?
As long as you pay what you owe to the IRS on time, you’re eligible to request a six-month extension to file your federal taxes.
Idaho taxpayers can “get an automatic filing extension by making sure they’ve paid enough of their tax by April 15,” the Idaho State Tax Commission said on its website.
To qualify, you need to either pay 80% of the estimated tax you owe for 2025 — or 100% of the total tax reported on your 2024 income tax return, if you filed a return.
You can use the Idaho Form 51 worksheet to determine how much income tax you need to pay.
According to the IRS, you can also get extra time to file your taxes if you were affected by a disaster.
You can check online to see if you qualify for disaster tax relief.
How do I request an extension for my 2025 tax return?
According to the IRS, there are three ways to get a six-month extension to file your 2025 tax return.
First, the IRS said, you can pay what you owe online and “check the box that you are paying as part of filing for an extension.”
You won’t have to file a separate extension form, and you’ll get a confirmation number for your records.
You can also use the IRS free-file program to select an extension or make a request one by mail.
Requests made by mail should include a filled out Form 4868.
“Estimate how much tax you owe for the year on the extension form,” the IRS said. “Subtract the taxes you already paid for the filing year.”
How can I request a filing extension on my Idaho state taxes?
You don’t need to fill out a form or request to get an extension for filing your Idaho state tax return,
However, you’ll still need to pay what you owe by the April 15 deadline to avoid late penalty interest charges, the state commission website said.
To make sure you pay the right amount to, fill out Idaho state tax Form 51 and then submit your payment.
There are three ways to pay your Idaho taxes before filing:
- Use Idaho State Tax Commission online payment portal.
- Mail a filled-out form 51 and a check or money order to one of six Idaho State Tax Commission locations.
- Pay in person at any Idaho State Tax Commission office.
Where are Idaho State Tax Commission offices?
Here’s where to find Idaho State Tax Comission offices:
- Boise: 11321 West Chinden Blvd.
- Coeur d’Alene: 1910 Northwest Blvd, Suite 100
- Idaho Falls: 150 Shoup Ave.
- Lewiston: 1118 F St.
- Pocatello: 1111 North 8th Ave.
- Twin Falls: 440 Falls Ave.
How long will it take to see my refund?
According to the IRS, you can typically expect to receive your 2025 federal tax refund three weeks after e-filing or six weeks after submitting your return in the mail.
The Idaho State Tax Commission said state returns and refunds normally take seven to eight weeks to process electronically.
However, some Idaho taxpayers can expect longer waits on refunds due to state tax conformity laws the Idaho Statesman previously reported.
“If you filed before March 10, 2026, you can expect your refund by the end of May,” the tax commission said on its website. “If you filed on March 10 or after, you should get your refund in the normal timeframe of seven to 11 weeks.”
