Department of Revenue: (406) 444-6900 or www.discoveringmontana.com/revenue
This is to register for you tax withholdings and unemployment insurance.
Secretary of State: (406) 444-3665 or http://sos.mt.gov
This is to register your business name.
Internal Revenue Service (Federal): 1-800-829-3676
This is to receive your federal employer identification number.
Motor Vehicle Registration: Check with the county that you will be performing work. Out of State vehicles need to be registered in Montana when work is being performed in Montana. (RPO - Registered purposes only)
Workers Compensation: Through a private insurer or through Montana State Fund.
Citizen's Advocate: 1-800-332-2272
This is for reference to find other state agencies not listed.
Board of Electricians and Plumbers: (406) 841-2328
Construction Contractor Registration: (406) 444-7734 or www.mtcontractor.com
Independent Contractor Central Unit: (406) 444-1446 or www.mtcontractor.com
Professional Licensing: (406) 841-2300
Building Codes: (406) 841-2040
Business Licenses: Please check with the city that you are performing work in.
Department of Environmental Quality (DEQ) environmental regulatory compliance, Small Business Environmental Assistance Program: (800) 433-8773