Montana State Income Taxes

April 15th, as with most states, is the deadline for filing your taxes in Montana.


This page:

  • Lists basic Montana state tax information

  • Links to the major Montana income tax forms

  • Shows you how you can save time and money by e-filing

Prepare your Montana taxes online, for free:
If you want to avoid costly mistakes, while at the same time taking advantage of all possible credits and deductions, you want to do your taxes online.

TurboTax Online allows you to work on your return for free, until you file. Work on your federal and Montana state taxes, and pay nothing until you are satisfied with your return. Start now.

Click here to start

Montana state taxes at a glance:

Tax Rate Range: Low - 1.0%; High - 6.9%
Income Brackets*: Lowest - $2,300; Highest - $13,900
Number of Brackets: 7
Personal Exemptions*: Single - $1,900; Married - $3,800; Dependents - $1,900; Seniors - $1,900
Standard Deduction: Single - $3,260; Married filing Jointly - $6,250
Medical/Dental Deduction: Federal amount
Federal Income Tax Deduction: Full

Filing your Montana state income tax return

When you file your Montana state tax return, the filing status you used in your federal return is most often also used on your state return. However, if you and your spouse are residents of different states, you cannot both file on the same Montana state tax return, meaning if you are not allowed to use the Married Filing Jointly filing status.

Montana's allowable tax deductions are quite similar to the tax deductions listed on your federal return.Montana offers numerous tax credits and deductions. Make sure you're eligible for each before claiming them. To itemize your deductions or obtain a complete list of the available deductions, consult Form 2A.

Page two of Form 2A lists all possible Montana tax credits. The most common tax credits are:

  • Qualified Endowment Credit
  • College Contribution Credit
  • Dependent Care Assistance Credit
  • Recycling Credit
  • Elderly Care Credit

You can access a full list of tax credits with eligibility requirements on the Montana tax website.

Finally, Montana residents are taxed on all income, regardless of its source. This means that part-year residents and nonresidents are taxed on all income from a Montana source. It also means that as a resident of Montana, your retirement income is taxed, regardless of whether it is from a different state.

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You can work on your Montana tax return online while filing your federal return (you can work on it for free, and pay nothing until you are ready to file).

Note: if you are filing more than one state return, you must file a paper return for each additional state, as TurboTax Online only allows one state prep.

Montana income tax forms

The main Montana tax forms are:

Form 2 | 2005 Montana Individual Income Tax Return| Instructions

Form 2EC | Elderly Homeowner/Renter Credit

If you need Montana income tax forms that are not listed here, you can download them from the Montana tax forms site.


Or, just simply e-file!

Additional MT state taxes help

If you need help with your federal tax return, start with our basic guide to tax filing.

For additional help with filing MT income tax returns, see the official site of the Montana Department of Revenue.

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