Registering a Fictitious Business Name
A fictitious business name statement (D.b.a. or "doing business as") must be registered with the county clerk of the county of the registrant's principal place of business if the business is any of the following:
Sole proprietorship doing business under a name not containing the owner's surname, such as Smith Accounting Services;
Partnership; or,
Corporation doing business under a name other than its legal name
Fictitious business names are not filed with the Secretary of State's Office. There is no provision in California for registration, in a central registry at the state level, of fictitious business names. You must contact the city and/or county clerk and/or recorder where the principal place of business is located for information regarding filing or registering fictitious business names.