|Tax Bracket (Single)||Marginal Tax Rate|
|Tax Bracket (Married)||Marginal Tax Rate|
Montana has seven marginal tax brackets, ranging from 1.00% (the lowest Montana tax bracket) to 6.90% (the highest Montana tax bracket). Each marginal rate only applies to earnings within the applicable marginal tax bracket, which are the same in Montana for single filers and couples filing jointly. The Federal Income Tax, by contrast, has different tax brackets for married, single, and Head of Household taxpayers.
You can think of the bracketed income tax as a flat amount for all of the money you earned up to your highest tax bracket, plus a marginal percentage of any amount you earned over that.
Technically, you don't have just one "tax bracket" - you pay all of the Montana marginal tax rates from the lowest tax bracket to the tax bracket in which you earned your last dollar. For comparison purposes, however, your Montana tax bracket is the tax bracket in which your last earned dollar in any given tax period falls.
Please note: Our Montana tax brackets are currently from tax year 2014. Many states adjust their tax brackets yearly, and we will update the Montana tax brackets for 2015 as soon as they become available.
If you would like to file your Montana income tax return by mail, you can download 2015 Montana tax forms here.
Your 2015 income tax return was due on April 15th, 2016. The IRS and Montana will soon be accepting tax returns, so you can start your online tax return today for free with TurboTax.
You can use the income tax estimator to the left to calculate your approximate Montana and Federal income tax based on the most recent tax brackets.
Keep in mind that this estimator assumes all income is from wages, assumes the standard deduction, and does not account for tax credits.
For a more detailed estimate that takes these factors into account, click "View Detailed Estimate" (this will will redirect to an external website).Deductions
When calculating your Montana income tax, keep in mind that the Montana state income tax brackets are only applied to your adjusted gross income (AGI) after you have made any qualifying deductions.
Qualifying deductions might include an itemized deduction, the Montana standard deduction, exemptions for dependants, business expenses, etc.
Remember that Montana may have very different deduction laws from the Federal Income Tax, so you may have to write a whole new list of deductions for your Montana income tax return.
|Download a .CSV file of the Montana income tax brackets|
|Download or print Montana income tax forms|
- The Montana tax brackets on this page were last updated from the Montana Department of Revenue in June, 2013. Please contact us if any of our Montana tax data is incorrect or out of date.
- Montana tax return forms are available on the Montana tax forms page or the Montana Department of Revenue.
- Before the official 2016 Montana income tax brackets are released, the brackets used on this page are an estimate based on the previous year's brackets. These numbers are subject to change if new Montana tax tables are released.
- The income tax estimator tool is provided by Tax-Rates.org.