Filing a DBA in San Francisco County, California
Filing a DBA ('doing business as'), also known as an 'assumed name', in San Francisco County, California, is a simple process.
Read below for answers to your questions about DBAs, plus important details and links, why you might consider filing an assumed name (DBA), and how a DBA can help or hurt you. If you need to research how to file a DBA in another U.S. state or territory, select it below.
Do I need a DBA in San Francisco County, California?
Yes. You are required by California state law to file a DBA in San Francisco County if that is where your principal place of business exists, even if you have filed one with the state of California. You can do this either in person or by mail with the county. If you do not have a physical place of business but operate in California, you must file a Fictitious Business Name with the Clerk of Sacramento County. See (CA Business & Professions Code Sec. 17915).