Montana Department of Revenue Business Registration (Form GenReg)

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You may use this form to register your business and create corporate income tax, small business, partnership, disregarded entity, sole proprietorship asset holding, wage withholding, mineral royalty withholding, lodging facility or rental vehicle accounts. You may also register using our TransAction Portal (TAP).

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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