Montana | Personal Tax Extension | Form IT | Montana Individual Income Tax Payment Voucher

Modified on Wed, 12 Apr, 2023 at 5:20 AM

State Abbreviation	MT
State Name	Montana
Extension Status	Approved Automatically
Return Due Date	April 18, 2023
Extended Due Date	October 16, 2023
Other Information	Montana provides an automatic extension to October 16th. To avoid late payment penalties, 90% of outstanding current year tax liability or 100% of previous year's tax liability must be paid by April 18th, 2023.
Online Payment	Montana \| Online Tax Extension Payment
Payment Voucher Title	Form IT, Montana Individual Income Tax Payment Voucher
State Payment Agency	Montana Department of Revenue
Mailing Address with Payment	Montana Department of Revenue P.O. Box 6309 Helena, MT 59604-6309
Online Payment Options \| Credit Card	Use the TransAction Portal (TAP) at https://tap.dor.mt.gov. There is a fee when paying with a credit or debit card
Online Payment Options \| ACH Debit	Use the TransAction Portal (TAP) at https://tap.dor.mt.gov. There is a fee when paying with a credit or debit card
Failure to File Penalties	Lesser of $50 or the amount of tax due.
Failure to Pay Penalties	1.2% of unpaid tax per month, up to 12%.