Montana Income Tax Calculator
Estimate your Montana income tax burden
Updated for 2024 tax year on Dec 19, 2024
What was updated?
Fixed calculation error with Adjusted Gross Income
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How to calculate your Montana income taxes
Table of Contents
Understanding your Montana income taxes
Montana’s state income tax utilizes a graduated scale, with seven brackets ranging from 1%, up to a top rate of 6.9%.
The state does not have a specific state payroll tax. This can significantly lessen the total tax burden for both employers and employees. Montana is one of the few states that does not impose a local income tax, providing a simpler tax situation for its residents.
Montana state standard deduction aligns with the federal standard deduction. The state also offers personal exemptions.
Calculate your income tax in Montana
- Work out your total federal income tax
- Gross income adjusted
Gross income − Pre-tax deductions = Gross income adjusted - Federal taxable income
Gross income adjusted − Federal standard/itemized deductions = Federal taxable income - Federal income tax liability
Federal taxable income × Federal income tax rate = Federal income tax liability - Federal payroll tax liability
Gross income × Federal payroll tax rate = Federal payroll tax liability
- Gross income adjusted
- Calculate your total Montana state income tax
- Montana state taxable income
Gross income adjusted − (Montana state standard/itemized deductions + Montana state exemptions) = Montana state taxable income - Montana state income tax liability
Montana state taxable income × Montana state income tax rate = Montana state income tax liability
- Montana state taxable income
- Add up all the taxes
Federal income tax liability + Federal payroll tax liability + Montana state income tax liability = Your total income tax liability
State income tax brackets
Refer to Tax Foundation for more details.
| Tax year | Filing status | Taxable income | Rate |
|---|---|---|---|
| 2024 | Single Married, Filing Separately |
$0 - $20,500 | 4.7% |
| $20,500+ | 5.9% | ||
| Married, Filing Jointly or Widow(er) | $0 - $41,000 | 4.7% | |
| $41,000+ | 5.9% | ||
| Head of Household | $0 - $30,750 | 4.7% | |
| $30,750+ | 5.9% | ||
| 2023 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 - $3,600 | 1% |
| $3,600 - $6,300 | 2% | ||
| $6,300 - $9,700 | 3% | ||
| $9,700 - $13,000 | 4% | ||
| $13,000 - $16,800 | 5% | ||
| $16,800 - $21,600 | 6% | ||
| $21,600+ | 6.75% | ||
| 2022 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 – $3,300 | 1% |
| $3,300 - $5,800 | 2% | ||
| $5,800- $8,900 | 3% | ||
| $8,900 - $12,000 | 4% | ||
| $12,000 - $15,400 | 5% | ||
| $15,400 - $19,800 | 6% | ||
| $19,800+ | 6.75% | ||
| 2021 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 – $3,100 | 1% |
| $3,100 – $5,500 | 2% | ||
| $5,500 - $8,400 | 3% | ||
| $8,400 - $11,400 | 4% | ||
| $11,400 - $14,600 | 5% | ||
| $14,600 - $18,800 | 6% | ||
| $18,800+ | 6.9% | ||
| 2020 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 – $3,100 | 1% |
| $3,100 – $5,500 | 2% | ||
| $5,500 - $8,400 | 3% | ||
| $8,400 - $11,300 | 4% | ||
| $11,300 - $14,500 | 5% | ||
| $14,500 - $18,700 | 6% | ||
| $18,700+ | 6.9% |
State standard deduction
| Tax year | Filing status | Standard deduction amount | Minimum standard deduction | Maximum standard deduction |
|---|---|---|---|---|
| 2024 | Single Married, Filing Jointly Married, Filing Separately Head of Household |
$0 | $0 | $0 |
| 2023 | Single Married, Filing Separately |
20% of adjusted gross income | $2,460 | $5,540 |
| Married, Filing Jointly Head of Household |
$4,920 | $11,080 | ||
| 2022 | Single Married, Filing Separately |
20% of adjusted gross income | $2,260 | $5,090 |
| Married, Filing Jointly Head of Household |
$4,520 | $10,180 | ||
| 2021 | Single Married, Filing Separately |
20% of adjusted gross income | $2,140 | $4,830 |
| Married, Filing Jointly Head of Household |
$4,280 | $9,660 | ||
| 2020 | Single Married, Filing Separately |
20% of adjusted gross income | $2,130 | $4,790 |
| Married, Filing Jointly Head of Household |
$4,260 | $9,580 |
State exemptions
There is state-level exemptions for all type of filers and dependents. Refer to Tax Foundation for more details.
| Tax year | Filing status | Personal exemption amount |
|---|---|---|
| 2024 | Single Married, Filing Jointly or Widow(er) Married, Filing Separately Head of Household |
$0 |
| Dependent(s) | $0 | |
| 2023 | Single Married, Filing Separately Head of Household |
$2,960 |
| Married, Filing Jointly or Widow(er) | $5,920 | |
| Dependent(s) | $2,960 | |
| 2022 | Single Married, Filing Separately Head of Household |
$2,580 |
| Married, Filing Jointly or Widow(er) | $5,160 | |
| Dependent(s) | $2,580 | |
| 2021 | Single Married, Filing Separately Head of Household |
$2,560 |
| Married, Filing Jointly or Widow(er) | $5,120 | |
| Dependent(s) | $2,560 | |
| 2020 | Single Married, Filing Separately Head of Household |
$2,510 |
| Married, Filing Jointly or Widow(er) | $5,020 | |
| Dependent(s) | $2,510 |
FAQs
How to calculate income tax in Montana?
Follow the steps below to calculate your total income tax in Montana:
- Work out your total federal income tax
- Calculate your total Montana state income tax
- Sum up all the taxes
How much income tax do I pay in Montana?
Montana imposes either 4.7% or 5.9% on all taxable income for the 2024 tax year.