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IRS offices in Montana

Montana has 4 active IRS Taxpayer Assistance Centers across 4 cities. Use the map to choose an active office, then check its hours and call 844-545-5640 before you go.

4
offices
4
cities
844-545-5640
IRS appointment line
1
closed location

Montana IRS offices map

Use the map to compare active office locations across Montana. Click a pin to open the office page with the local phone number, address, hours, notes, and nearby offices.

4locations, active IRS Taxpayer Assistance Centers in Montana. Click a pin to open its office page.

What to do before visiting an IRS office in Montana

Start by calling the IRS appointment line. Tell the representative what you need help with and which office you want to use. Ask if the office can handle your issue, because some services are local and some are easier to finish online.

Bring photo ID, your taxpayer identification number, and the IRS letter or notice tied to the appointment. If you are going for identity verification, the IRS may ask for two forms of ID and a copy of the return for the year in question.

  • Call first. Use 844-545-5640 for TAC appointments.
  • Check the office page. Temporary closure notes and limited hours are shown on the individual office page.
  • Bring the notice. If the IRS mailed you a letter, bring the whole letter and any documents it asks for.
  • Use online tools when they fit. Transcripts, payments, refund status, and account details are often faster on IRS.gov.

Cities with active IRS offices in Montana

City Offices
Billings 1
Great Falls 1
Kalispell 1
Missoula 1

Montana active IRS office list

Closed IRS locations in Montana

These locations are marked currently closed by the IRS locator. They stay listed here because people still search old office addresses, and the useful answer is the current status plus nearby active offices.

Questions about IRS offices in Montana

Do I need an appointment at an IRS office in Montana?
The IRS tells taxpayers to call ahead for a Taxpayer Assistance Center appointment. Call 844-545-5640 before visiting, especially if you need identity help, ITIN document review, or help with a notice.
What should I bring to a Montana IRS office?
Bring a current government-issued photo ID, your Social Security number or ITIN, any IRS letter or notice tied to the visit, and the tax documents the appointment is about.
Can I walk into a Montana IRS office?
Do not rely on walk-in service. Some offices may handle limited walk-in issues, but scheduled appointments get priority and local closure notes can change the normal schedule.