The state of Montana bases its rate of taxation on seven different income brackets. The tax rate varies from 1% to 6.9%. Each income bracket is assessed at a separate rate as follows:

• 1% of the first $2,800 of taxable income
• 2% between $2,801 and $4,900 of taxable income
• 3% between $4,901 and $7,400 of taxable income
• 4% between $7,401 and $10,100 of taxable income
• 5% between 10,101 and $13,000 of taxable income
• 6% between $13,001 and $16,700 of taxable income
• 6.9% on any taxable income of $16,701 and greater

Montana’s deadline for filing tax returns is April 15th unless the date falls on a holiday or weekend, in which case taxes will be due the following business day.

Montana Residency

Any claim of residency in the state of Montana for any single purpose qualifies you as a resident for all other purposes. If you obtain a state hunting license or tuition discounts for state residency, you will be responsible for paying Montana income tax.

When filing your tax return, you’ll have to include all income sources, including those from out of state. If you own a permanent home in Montana, you are considered a resident, even if you leave the state temporarily. However, you cannot chose to have a residence where you live and another residence simply for tax purposes. The place where you maintain family, social, and economic business is considered your residence for tax time. In order to change your legal residence, you have to have no intention to return to your former address. Montana residency can only be lost by moving out of state permanently with no plan to return.