If the business' name is different than that of the sole proprietor or the partners, the business name must be registered with the respective County Recorder If the county office does not have the appropriate form, you can obtain one from the State Information Center, 1-800-457-8283 (STATE)
A corporation must file the assumed business name with the Secretary of State and the County Recorder if doing business under a name other than the name on the Articles of Incorporation. Obtain this form from the Secretary of State's Office, Business Srvs. Div. , 317-232-6576.