How to Register a DBA in California: Quick Overview

In California, a DBA is generally registered by filing a Fictitious Business Name (FBN) statement with a county clerk—not with the California Secretary of State. A person regularly conducting a for-profit business under a fictitious name must file within 40 days after beginning to use that name. The correct filing county is normally the county where the business has its principal California place of business. If the registrant has no place of business in California, the statement is filed with the Sacramento County Clerk.

Registration is only the first part of the process. After filing, most registrants must arrange newspaper publication and then make sure proof of publication is filed with the same county clerk. County-specific procedures can differ, so use the applicable county clerk’s current instructions when preparing the submission.

What a California DBA Registration Does

California law uses the term fictitious business name for what is commonly called a DBA, meaning “doing business as.” The FBN statement identifies the business name and the person or entity conducting business under it.

Whether a name is considered fictitious depends partly on the registrant:

  • Individual: A business name is generally fictitious if it omits the individual owner’s surname or suggests that additional owners are involved.
  • Corporation, LLC, or limited partnership: A name is fictitious when it differs from the entity name on file with the California Secretary of State.

The filing identifies the registrant’s existing business structure; it does not substitute one structure for another. Someone deciding between operating under a business name and organizing an LLC can review DBA vs LLC: When a Fictitious Name Is Enough. A corporation applicant can also consult this California corporation overview for a separate discussion of forming that type of entity.

Who Needs to File

The statewide filing rule applies to a person regularly conducting a for-profit business in California under a fictitious business name. The FBN statement must be filed within 40 days after the business begins operating under the name.

For an individual, look at whether the proposed public-facing name includes the owner’s surname and whether its wording implies other owners. For an entity, compare the operating name with the exact corporation, LLC, or limited partnership name already on file with the California Secretary of State.

The words used in the DBA must also fit the registrant’s legal structure. An FBN may contain “Corporation,” “Corp.,” “Incorporated,” or “Inc.” only when the registrant is a corporation. Likewise, “Limited Liability Company,” “LLC,” or “LC” may be included only when the registrant is an LLC. A sole proprietor, for example, should not add “LLC” to a fictitious name when the registrant is not an LLC.

Because FBN filings are administered at the county level, applicants should not assume that every California county uses the same submission process. The California Secretary of State directs applicants to the appropriate county for its specific requirements. Review the relevant county clerk’s current materials before submitting documents or arranging publication.

Information to Gather Before Filing

A California FBN statement identifies the fictitious business name, the business address and county, information about the registrant or entity, the business structure, and the date business began under the name. If operations under the name have not started, the statement uses “Not applicable” for that date.

Before completing the county’s filing materials, gather:

  • The fictitious business name exactly as it will appear on the statement.
  • The business address and the county in which the principal California place of business is located.
  • The identifying information requested for each individual registrant or for the registering entity.
  • The business structure that applies to the registrant.
  • The date the business began operating under the fictitious name, or an indication that the date is not applicable because operations have not begun.

Use the registrant information that corresponds to the actual person or entity behind the business. If an LLC operates under a different public name, for example, the LLC remains the registrant identified in the statement. If an individual owns the business, the individual’s information is used as applicable.

County clerks may have different practical procedures, including document, identity-verification, affidavit, submission-method, or portal instructions. Filing charges may also differ by county. Check the correct county clerk’s current page instead of relying on a procedure or price from another county. An applicant who wants a general starting point for preparing a DBA submission can also review the DBA fictitious-name registration application page.

How to Register a DBA in California

  1. Determine whether the name is fictitious for your type of registrant. An individual should consider whether the name omits the owner’s surname or suggests additional owners. A corporation, LLC, or limited partnership should compare the operating name with its entity name on file with the California Secretary of State.

  2. Identify the correct county clerk. File in the county where the registrant’s principal California place of business is located. If the registrant has no California place of business, file with the Sacramento County Clerk.

  3. Review that county’s current filing instructions. Obtain the county’s current FBN materials and follow its requirements for submitting the statement. Do not assume that another county’s process, documentation rules, or filing options apply.

  4. Complete the FBN statement. Provide the fictitious name, business address and county, registrant or entity information, business structure, and the date operations began under the name. Use “Not applicable” for the start date if the business has not yet begun operating under the name.

  5. Check entity wording. Make sure corporate designators appear only when the registrant is a corporation and LLC designators appear only when the registrant is an LLC.

  6. Submit the statement within the applicable filing period. A person regularly conducting a for-profit California business under the fictitious name must file within 40 days after beginning business under that name.

  7. Arrange the required publication. Within 45 days after filing, the registrant must publish the statement in a qualifying newspaper of general circulation. Publication must run once per week for four successive weeks.

  8. Complete proof of publication. An affidavit proving publication must be filed with the same county clerk within 45 days after publication is completed.

After Filing: Publication, Changes, and Renewal

Calendar the publication steps rather than treating the county filing as the end of the registration. Publication must begin within 45 days after the FBN statement is filed and must appear once per week for four successive weeks. The affidavit proving publication must then be filed with the same county clerk within 45 days after publication finishes.

An FBN statement generally expires five years after it is filed. It can expire sooner when information required on the statement changes: subject to statutory exceptions, the statement expires 40 days after such a change, and a new statement must be filed. Changes affecting the registered facts therefore should not be left until the ordinary five-year expiration date.

There is a limited publication exception for certain renewals. When a refiling is based on expiration, republication is not required if all required information remains unchanged and the new statement is filed within 40 days after expiration. This exception is limited to an unchanged, timely expiration-based refiling; it should not be applied automatically to a filing containing changed information.

Practical California DBA Examples

An individual uses a brand name

Maya Chen begins conducting a for-profit design business as “Golden Coast Design.” Because that name omits her surname, it generally falls within the definition of a fictitious business name for an individual. She would identify the county containing her principal California place of business, follow that county clerk’s filing instructions, and complete the post-filing publication process.

An LLC operates under a different name

Suppose “Redwood Trail Foods LLC” is the entity name on file, but the company sells products as “North Bay Pantry.” Because the operating name differs from the LLC’s filed entity name, it is a fictitious business name for the LLC. The FBN statement would identify the LLC as the registrant and report the applicable business information.

A sole proprietor wants to use “LLC”

An individual sole proprietor proposes the name “Westside Repair LLC” but has not organized an LLC. The FBN name restriction does not permit “LLC” to be used unless the registrant is an LLC. Filing a fictitious-name statement under that wording is not a substitute for being an LLC.

A business has no California location

An otherwise covered registrant conducts business in California under a fictitious name but has no California place of business. Under the statewide location rule, the registrant files with the Sacramento County Clerk rather than choosing a county based only on customer locations.

Frequently Asked Questions

Where do I register a DBA in California?

File the Fictitious Business Name statement with the county clerk where the registrant’s principal California place of business is located. If the registrant has no California place of business, file with the Sacramento County Clerk.

How soon must I file a California FBN statement?

A person regularly conducting a for-profit business in California under a fictitious business name must file an FBN statement within 40 days after beginning business under that name.

Do I have to publish my California DBA after filing?

Generally, yes. Within 45 days after filing, the registrant must begin publication in a qualifying newspaper of general circulation. The statement must be published once per week for four successive weeks, and an affidavit proving publication must be filed with the same county clerk within 45 days after publication is completed. A limited exception applies to certain unchanged, timely expiration-based refilings.

How long does a California FBN statement remain active?

A California FBN statement generally expires five years after filing. Subject to statutory exceptions, it expires 40 days after a change to information required on the statement, and a new statement must be filed.

Can a sole proprietor put LLC or Inc. in a California DBA?

No. “Limited Liability Company,” “LLC,” or “LC” may be used only when the registrant is an LLC. “Corporation,” “Corp.,” “Incorporated,” or “Inc.” may be used only when the registrant is a corporation.

Official Resources



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Author: OTIN Editorial Team
OTIN Editorial Team publishes the sales tax registration, seller's permit, resale certificate, and business tax ID guides on Online-Tax-Id-Number.org. Guides are researched against official government sources, including state departments of revenue and the IRS, and link to the source pages they rely on. Online-Tax-Id-Number.org is a private third-party application assistance service. It is not a government agency and is not affiliated with or endorsed by any government agency. Guides provide general information only and are not legal or tax advice.

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