The registration of a trade name (business name/DBA) is filed with the Office of the Secretary of State.* The Trade Name application can be downloaded from their website.
Arizona Secretary of State
Trade Name and Trademark Forms
www.azsos.gov/business_services/tnt/TNTForms.htm
Application for Registration of Trade Name
www.azsos.gov/business_services/Forms/TNT/TN_apptn.pdf
Arizona Secretary of State
www.azsos.gov
Phoenix 602.542.4285 / Tucson 520.628.6583 / Arizona toll free 800.458.5842
Mailing Address: 1700 W. Washington Street, 7th Floor, Phoenix, AZ 85007
Customer Service Centers:
Phoenix: 1700 W. Washington Street, #103
Tucson: 400 W. Congress, North Building, Room 252
*Note: If you are filing as a corporation or LLC with the Arizona Corporation Commission, it is not necessary to register your corporate name as a trade name with the Secretary of State’s office as names are cross-referenced with the Corporation Commission.