MONTANA Tax Forms and Instructions
Below are the relevant links for MT State Tax information.
Montana State Mandate Tax preparers who have been approved by the IRS are automatically approved to submit Montana returns electronically. There is no separate approval process for Montana.



MONTANA Tax Forms and Instructions Information
Online Credit Card Payments
  • Offical Payments
    Or call 1-800-2PAY-TAX (Offical payments charges a nominal fee for this service)(Use Jurisdiction Code 2000 for Individual and Jurisdiction Code 2006 for Business Taxes)
Mailing Addresses
  • Return Mailing Address:
    Montana Department of Revenue
    PO Box 6577
    Helena, MT 59604-6577

  • Return Mailing Address without Refund:
    Montana Department of Revenue
    PO Box 6308
    Helena, MT 59604-6308

  • Estimates Mailing Address:
    Montana Department of Revenue
    Po Box 8021
    Helena, MT 59604-8021

  • Amended Return Mailing Address:
    Montana Department of Revenue
    PO Box 6577
    Helena, MT 59604-6577

  • Extension Mailing Address:
    You can be granted an extension of time for filing your Montana income tax return if you meet both of the following requirements: 1. By April 17, 2012, you have applied to the Internal Revenue Service by filing federal Form 4868 for an automatic six-month extension to file your federal income tax return. 2. You have paid 90% of your 2011 Montana income tax liability or 100% of your 2010 Montana income tax liability through your estimated tax payments, your withholding tax, or a combination of both your estimated and withholding tax payments. Even though you have applied for an automatic six-month federal extension, this does not guarantee that you have a Montana extension unless you have met one of the requirements listed in number 2 above on or before April 17, 2012.

    Montana Department of Revenue
    PO Box 6308
    Helena, MT 59604

  • Electronic Filing:
    Montana accepts Resident, Nonresident, and Part-year returns electronically. They can be transmitted with the Federal return or transmitted as a State only return.
Federal Tax Information