To Register a trade name:
Sole Proprietors & Partnerships:
Secretary of State
1700 W Washington, 7th Floor
Phoenix AZ 85007
602.542.4285
http://www.azsos.gov
Corporations, Limited Liability Companies, etc
Arizona Corporation Commission
1300 W Washington
Phoenix AZ 85007
602.542.3026
http://www.azcc.gov
To obtain a federal identification number (FEIN):
Internal Revenue Service
P.O. Box 9941
Ogden UT 84201
800.829-3676 or 801.620.3645
http://www.irs.gov
To apply for a Transaction Privilege Tax License – (commonly referred to as Sales Tax):
Arizona Department of Revenue
1600 W Monroe
Phoenix AZ 85007
602.255.3381
Arizona Department of Revenue
Licensing Guide
Tax Rate Tables
To apply for a Contractor’s License:
Arizona Registrar of Contractors
1700 W. Washington Street, Suite 105
Phoenix AZ 85007
602.542.1525
http://www.azroc.gov
To apply for a Maricopa County Health Permit:
Maricopa County Environmental Services Department
Environmental Health Division
1001 N. Central Avenue, Suite 300
Phoenix, AZ 85004
602.506.6970
https://www.maricopa.gov/631/Environmental-Services
For more business resources:
Arizona Commerce Authority
Small Business Services
602.845.1295 or 800.542.5684
http://www.azcommerce.com/smallbiz
Arizona Entrepreneur’s Edge (AzEE)
Free, interactive Checklist Program to Start, Operate and Grow a Business in Arizona – includes information on business licensing and resources