Montana

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Download Extension Form(s)

Montana

Extension for tax year 2005

General Instructions

The Montana Department of Revenue automatically grants a six month extension of time to file only for individuals that are requesting a Federal extension. However, if you do not owe any Montana taxes or you are expecting a refund, there is no late filing penalty if the return is filed by October 15, 2006. You will only need to file a Montana Extension Form if you owe Montana taxes.

Taxpayers must attach a copy of their Federal extension to their completed Montana tax return, and the extension indicator box on the Montana tax form must be checked.

To avoid penalties you must pay at least 90% of your current year tax liability or 100% of your 2004 tax liability by April 15, 2006. Any tax not paid by the original due date of the Montana return will be assessed interest from the due date to the payment date.

Penalty and Interest Charges on Tax Owed:

Taxpayers that do not pay their current year tax liability in full before April 15, 2006 will be charged interest on the unpaid balance and a late payment penalty.

• Interest will be accrued on any tax not paid by April 15, at a rate of eight percent (8.0%) per annum.
• A late payment penalty will be assessed if you do not pay at least 90% of your current year tax liability or 100% of your prior year tax liability by April 15. The penalty is 1.2% per month or fraction of month on the unpaid tax up to 12%.
• A late filing penalty of $50 or 100% of the total tax, whichever is less, will be assessed for balance due returns that are filed after April 15, 2006 without a valid extension.

If You Owe...

If you owe additional Montana Income Taxes you may pay your estimated balance due in the following ways:

Taxpayers must attach a copy of their federal extension form to their completed Montana tax return. Additionally, the extension indicator box on the Montana tax form must be checked.

1. Prepare a Montana Extension Payment Worksheet EXT-09 (click here to download PDF)
2. Enclose a check or money order with the voucher on the bottom of the form
3. Mail to:
   Montana Department of Revenue
   P.O. Box 6308
   Helena, MT 59604-6308

The Montana Department of Revenue only accepts MasterCard or Visa. A convenience fee is charged for processing. You will not need to file any additional paperwork at this time.

To pay online, visit the Montana Department of Revenue web site at:
https://app.mt.gov/ite/

The Montana Department of Revenue accepts payments by Direct Debit (electronic check/bank draft). A convenience fee is charged for processing. You will not need to file any additional paperwork at this time. To pay online, visit the Montana Department of Revenue web site at https://app.mt.gov/ite/

If You Do Not Owe...

If you owe zero taxes or are expecting a refund from Montana, there is nothing to be filed at this time, an extension is automatically granted until October 15, 2006 for the filing of your 2005 tax return.