Individual Income Tax

If you live or work in Montana, you may need to file and pay individual income tax. These resources can help you determine your filing requirements and options.

Individual Income Tax Due Dates Returns April 15 Extension October 15

Individual Return Filing

Late Filing and Nonfilers

Additional Resources

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© 2024 Montana Department of Revenue Legal Disclaimer & Privacy Policy Helpful Resources

Citizen Services Call Center

Phone: (406) 444-6900

TDD: Montana Relay 711

We’re available Monday through Thursday, 9:00 a.m. until 4:00 pm and Friday, 9:00 a.m. until 1:00 p.m.

Taxpayer Advocate

If you need help working with the department or figuring out our audit, appeals, or relief processes, the Taxpayer Advocate can help.

Mail: 125 N Roberts Street Helena, MT, 59601

Phone: (406) 444-6789

TDD: Montana Relay 711

Fax: (406) 444-3696