What are the tax laws in Montana?
Sarah Duran
Published Mar 27, 2026
Overview of Montana Taxes Montana has a progressive state income tax, with a top rate of 6.9%. Montana has only a few other types of taxes. There is no sales tax in the state and property taxes are below the national average.
Do I need to file a Mt tax return?
According to Montana Instructions for Form 2, “you must file a Montana Individual Income tax return if your federal gross income meets the threshold and you lived or earned income in Montana during the tax year.”
Does Montana accept federal extension for individuals?
Montana personal tax returns are due by April 15. If you cannot file by that date, you can get a state tax extension. A Montana extension will give you 6 more months to file, moving the deadline to October 15. NOTE: You do not need to file a Federal tax extension (IRS Form 4868) in order to get a Montana tax extension.
Is unemployment taxable in Montana?
Unemployment compensation is subject to federal income tax and exempt from Montana income tax.
What is the state income tax rate in Montana?
Montana is moderately tax-friendly toward retirees. Social Security income is partially taxed. Withdrawals from retirement accounts are fully taxed. Wages are taxed at normal rates, and your marginal state tax rate is 6.90 %. Public and private pension income are fully taxed.
When does a bill become law in Montana?
Montana State Statutes. Home. Montana State Statutes. After a bill is signed by the governor or passed by the Legislature over the governor’s veto, it is incorporated into the Montana Code Annotated (MCA).
Do you have to pay income tax on retirement in Montana?
Yes. Income from a pension or from a retirement account like a 401(k) or an IRA is treated as regular income and taxed at Montana’s state income tax rates. The table below shows brackets and rates for the Montana state income tax.
Is there an estate tax exemption in Montana?
Though Montana won’t tax your estate, the federal government may if it is worth enough. The exemption for the federal estate tax is $11.18 million for 2018. That number includes a big increase from the 2017 tax bill. The exemption for 2019 will rise to $11.40 million.