A DBA (“doing business as”) is just a name-registration filing. It creates no legal entity, provides no liability protection, gives you no trademark rights, and does not change how you're taxed. What you need instead depends on the goal: an LLC or corporation for liability, a federal trademark for brand protection, an EIN for banking, and a written operating agreement for governance.
It's so common for me to hear new entrepreneurs talking about DBAs as if they were a meaningful form of protection. They aren't. Let's clear it up.
DBA stands for "doing business as", formally called a "fictitious business name." In California, getting one means filing a form with the county where the business operates and paying a small fee. Some businesses are legally required to file. Functionally, it's a regulatory requirement, comparable to a business license or a vehicle registration.
A DBA provides no protection for personal assets. Only corporations and LLCs offer that. If someone sues your business while you're operating under a DBA, your house, your car, and your bank accounts are exposed.
Filing a DBA registers a name with the county. It does not legally protect your brand or trade name. Trademarks, protected under separate federal law, are what actually safeguard a business name. A competitor could register your DBA name as a federal trademark and force you to stop using it.
A DBA does not reserve the name for your exclusive use. Anyone else can file the same DBA in another county. Trademark registration is what reserves a name.
You can operate multiple businesses under multiple DBAs simultaneously, or zero DBAs. There's no requirement that a particular business map to a particular DBA structure.
Smart entrepreneurs should stop thinking of DBAs as anything related to actual business protection. File one if your business is legally required to. Beyond that, the real protection comes from forming a corporation or LLC (for liability) and registering trademarks (for brand). Anything else is a regulatory checkbox.
If you're starting a business and want to talk through the right structure, we offer free initial consultations.
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