Business Formation · January 21, 2026

Choosing a Business Name in California: Legal Steps

Picking a business name feels like a branding decision, but in California it is also a legal process with four separate layers: entity name approval, fictitious business name registration, trademark rights, and domain ownership. Clearing one layer does not clear the others — and the gaps between them are where expensive mistakes happen. Here is the sequence to follow before you print business cards.

Layer one: the Secretary of State's rules

If you are forming an LLC or corporation, the California Secretary of State must accept your entity name. The core requirement is that the name be distinguishable on the Secretary of State's records from existing entities of the same type. LLC names must end with "LLC," "L.L.C.," or "Limited Liability Company"; corporations have more flexibility, though certain words (like "bank" or "trust") are restricted. Search the state's business database before filing, and if you are not ready to file yet, you can reserve a name for 60 days for a small fee.

Understand what approval means — and what it does not. The Secretary of State checks its own records for conflicts among registered entities. It does not check trademarks, county fictitious name filings, or names in other states. An approved entity name is a filing clearance, not a right to use the name in commerce.

Layer two: fictitious business names (DBAs)

California's fictitious business name statute, Business and Professions Code § 17900 et seq., requires an FBN statement whenever a business operates under a name that does not match its legal identity. That includes:

  • A sole proprietor using anything other than their surname (and a name that suggests additional owners, like "& Company," triggers the requirement too);
  • A partnership using a name that does not include every general partner's surname;
  • An LLC or corporation doing business under any name different from the exact name on file with the Secretary of State.

The statement is filed with the county clerk where the business has its principal place of business, generally within 40 days of starting to transact business, and must then be published in a newspaper of general circulation in that county once a week for four successive weeks, with an affidavit of publication filed afterward. Statements expire after five years and must be renewed. The penalty for skipping this is practical and sharp: under § 17918, a business that has not filed a required FBN statement may not maintain a lawsuit on transactions made under that name until it complies — an unwelcome discovery when you are trying to sue a customer for nonpayment.

Layer three: trademarks — the layer that actually protects the name

Neither entity registration nor an FBN filing gives you the right to stop others from using a similar name, and neither protects you from an infringement claim. Trademark law does that. Before committing to a name, search the USPTO federal register, the California Secretary of State's trademark records, and — because trademark rights in the United States arise from use, not just registration — search the market itself for businesses already using similar names for similar goods or services. A conflict found now costs you a naming session; a conflict found after two years of marketing costs you a rebrand and possibly damages. If the name clears, consider registering: a federal registration can provide nationwide constructive rights, subject to the rights of earlier users, and stronger remedies, while a California state registration under Business and Professions Code § 14200 et seq. is a lower-cost option for purely in-state businesses.

Layer four: domains, social profiles, and practical checks

Finally, confirm the digital real estate: the domain name, the social media usernames, and how the name looks in search results. None of this creates legal rights by itself, but discovering that the .com belongs to a competitor is better learned before formation than after. This is also the moment to sanity-check the name against your growth plans — a name tied to one city or one product can become a constraint, and licensed professionals face additional naming rules for their entities under their licensing statutes.

The right order of operations

  1. Shortlist names and run trademark and marketplace searches first — this is the layer most likely to force a change;
  2. Check Secretary of State availability and reserve the name if formation is imminent;
  3. Form the entity (or, for sole proprietors, proceed directly to the FBN filing);
  4. File and publish the FBN statement for any operating name that differs from the legal name;
  5. Register the trademark and secure the domain and social media usernames.

A business formation attorney can assist with this sequence as part of forming the company, helping reduce the risk of building a brand around a name that later must change.

Talk to a California business attorney

Before you invest in a name, make sure it is legally yours to use. Itkin Law helps California businesses clear, register, and protect their names as part of formation. Schedule a free consultation or call (949) 418-2113.

This article is attorney advertising and provides general information only. It is not legal advice and does not create an attorney–client relationship. Facts matter; consult a lawyer about your specific situation.

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