How to File or Renew a DBA in California

  • June 18, 2025
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In California, operating a business under a name different from your personal name or the official registered name of your entity requires filing a DBA – short for “Doing Business As.” This process helps ensure transparency for consumers and compliance with state regulations.

Filing a DBA

If you’re running your business under a name that isn’t your personal name or the legal name of your LLC/corporation, you need to register a Doing Business As (DBA), also called a Fictitious Business Name (FBN), in California.

To file a DBA in California, start by choosing a unique business name that’s not already in use in your county. You can check for name availability on your county clerk’s website. Next, file a Fictitious Business Name Statement with the county where your business is located. Each county handles its own filings, so requirements and fees vary.

Publish Your Business Name

Once filed, you must publish the DBA in an approved local newspaper once a week for four consecutive weeks. This must be done within 30 days of filing, and proof of publication must be submitted to the county. The County Clerk will give you a list of approved newspapers and instructions.

Renewing a DBA

A California DBA is valid for 5 years. You’ll need to renew it before it expires by re-filing the FBN with the same county office. If you forget, your registration will expire and you’ll need to start the process again — so set a reminder! Unlike the initial filing, republication may not be necessary unless certain details—like ownership or the business name—have changed.

Failing to renew on time can lead to penalties or losing the legal right to operate under the chosen business name. It’s wise to set a reminder a few months before your DBA expires.

Why Filing a DBA Matters

Having an up-to-date DBA keeps your business compliant and legally protected. It also helps build trust with clients and vendors by showing you’re operating transparently. Whether you’re a sole proprietor or a growing LLC, maintaining your DBA ensures your brand identity remains secure and recognized.

For the most accurate instructions, always refer to your specific county clerk’s office or consult a legal professional.

You can also check out some resources at the California Office of the Small Business Advocate HERE

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