Idaho Business Tax Extension Filing Instructions
543 views | Last modified 3/20/2023 2:44:05 AM EST | Added by ExpressExtension Team

Businesses operating in Idaho (C-Corporation, S-Corporation, Partnership, Fiduciary) are granted an automatic six-month extension to file Idaho business tax returns. 

This extension does NOT grant you an extension of time to pay any tax you owe. If you owe state tax, make your payment by the actual due date of the return to avoid penalty and interest.

Extension Form to use

There is no state-specific form to request an Idaho extension, as the state of Idaho automatically provides the extension for up to 6 months for businesses to file an income tax return
with the state.

Due date to file Idaho tax Extension

Filing Method (Paper/Electronic)

The state of Idaho supports both paper and electronic filing.

How to pay the state tax due?    

If you owe state tax due and you want to make a payment, use any of the following options:

• Idaho Business Taxpayer Self-Service center.
• Secure QuickPay service online to authorize a payment from your bank account.
• Idaho’s E-Pay system
• ACH Debit
• ACH Credit
• Credit/Debit Card
• Check or money order. You can make the estimated payment with a check using the voucher at the bottom of Form 41ES.

Does ExpressExtension support this State filing?    

Idaho business extensions are automatic, which means there is no application to submit.

Any Special Requirements?

You must pay your Idaho tax by the original deadline (April 15) in order to qualify for the automatic extension and avoid penalties. To fulfill the extension payment provision, you must meet one of the following requirements:
• Pay at least 80% of your current year state tax liability, or
• Pay 100% of your previous year’s state tax liability

For more information regarding Idaho business state tax extension, click here.