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
- Filing Requirements
- Filing Status
- Income Tax Rates, Deductions, and Exemptions
- Tax Credits
- Montana Residency
- Filing Information for Military Personnel and Spouses
- Filing Information for Native Americans
- Retirements Income Exemptions, Deductions, and Exclusions
- Amending or Correcting a Return
- Making Estimated Tax Payments
- Filing on Extension
- Late Fees, Interest, and Penalties
- Nonfilers
- Frivolous Tax Positions
Additional Resources
- Where's My Refund?
- Montana Free File Partner Offers
- Montana Individual Income Tax Return (Form 2)
- Form 2 Instructions and Booklet
- Enrolled Tribal Member Exempt Income Certification/Return (Form ETM)
- Approved Commercial Tax Software
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State Directories:
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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