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 6309
    Helena, MT 59604-6309

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

  • Extension Mailing Address:
    The Montana Department of Revenue grants an automatic six-month extension of time to file your state tax return. You do not need to apply for an extension. You are granted an automatic extension of time to file your Montana income tax return through October 15, 2015 if one of the following applies to you: -Your 2013 tax liability is $200 or less. -You paid at least 90% of your 2014 Montana income tax liability through your estimated tax payments, your withholding tax, or a combination of both, by April 15, 2015; -You paid 100% of your 2014 Montana income tax liability through your estimated tax payments, your withholding tax, or a combination of both, by April 15, 2015; -You are a first time filer; or -You had no taxable income for 2014

    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