Assumed name rules vary

There are many good reasons to do business under an assumed name (aka DBA – “Doing Business As”). 

 

Whether you operate your business as a corporation, LLC, sole proprietor, or general partnership, you must follow every state’s specific DBA requirements for your business type. Some states even require registering in multiple locations, like the county or city where you’re doing business.

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CT Corporation helps navigate the assumed name and DBA filing process

Assumed name requirements can differ across states and local jurisdictions. CT Corporation helps manage the filing process.

Checking assumed name availability

We review the proposed name against the applicable filing office’s records and naming requirements.

Identifying the required filing offices

We determine whether documents must be filed with a state, county, city, or multiple agencies based on the jurisdiction and business type.

Preparing and filing the documents

We prepare the DBA documents according to the filing office’s requirements and submit them to the appropriate agencies. We'll also coordinate publication, if necessary, and obtain proof of publication.

Monitoring the filing

We track the filing through approval and deliver the DBA certificate when it is issued.

DBA filing considerations

A DBA is a business name

A DBA connects the name a business uses in the marketplace with the individual or legal entity behind that name. DBA filings create a public record and help provide transparency about business ownership.

A DBA is not a separate legal entity

Filing a DBA does not form an LLC, corporation, or other business entity. It does not change the business’s existing legal structure or provide personal liability protection.

A DBA is not a business license or trademark

A DBA permits the use of a business name. A business license authorizes certain business activities, while a trademark can provide separate legal protection for a name or brand. Depending on the business and location, an organization may need more than one of these registrations.

DBA requirements vary by state and jurisdiction

There is no single nationwide DBA filing process. Assumed name statutes vary in several important ways, including:

  • Whether registration is required or optional
  • Whether filing occurs at the state, county, or local level
  • Whether different rules apply to corporations, LLCs, partnerships, and sole proprietorships
  • Whether more than one filing is required
  • Whether notice must be published in a newspaper
  • Whether the filing expires or remains effective until canceled
  • Whether amendments are required when filing information changes
  • Whether the DBA name receives any exclusivity or protection


Some jurisdictions require state filing, others require county filing, and some require both filing and publication. Renewal periods and amendment requirements also vary.

Read: Doing Business Under an Assumed Name

Check the name before you file

A legal business name and a DBA name are not the same. A legal name is the official name on a business’s formation documents. An organization may have one legal name while using multiple DBA names.

Name availability rules vary by state. A proposed name may be rejected because it is too similar to another name, contains a restricted word, or does not meet other jurisdiction-specific requirements.

An availability check only shows whether a name is available at that time. It does not necessarily reserve the name or provide trademark protection. In addition, many states do not give DBA names exclusive protection, which means another business may be able to register the same or a similar DBA.

Read: Business Naming 101

Get your DBA filing right from the start

DBA requirements can vary by business type, state, county, and city. Trust CT Corporation's extensive experience to help identify the required filings and manage the process from name review through certificate delivery.
Request DBA Filing Support

Frequently asked questions

  • What is a DBA?

    Every business has a legal name. For a corporation or LLC, it is generally the name on the organization’s formation documents. For a sole proprietorship or general partnership, it is generally the name of the owner or owners.

    When a business operates under another name, it may need to register that name as a DBA. For example, an organization may use one legal entity to support several brands, product lines, divisions, or regional business names.

    A DBA may also be called:

    • Assumed name
    • Fictitious business name
    • Trade name
    • Business name
    • Doing business as name

    The terminology and filing requirements depend on the jurisdiction.

  • What does DBA stand for?
    DBA stands for “doing business as.” It refers to a name used by an individual or business that differs from its legal name. It may also be called an assumed name, fictitious business name, or trade name.
  • Who needs to file a DBA?

    A corporation or LLC may need a DBA when it operates under a name other than the name on its formation documents. A sole proprietor or partnership may need one when operating under a name other than the owners’ names. Requirements depend on the jurisdiction.

  • Is a DBA a separate legal entity?
    No. A DBA is a registered business name, not a business structure. It does not create a separate corporation or LLC and does not provide personal liability protection.
  • Is a DBA the same as a business license?

    No. A DBA registers a business name. A business license authorizes certain business activities. A business may need both.

    Contact CT Corporation to determine if you need a DBA, a business license or both.

  • What is a voluntary DBA versus a required alternate name?
    A voluntary DBA is a name a business chooses to use in addition to its legal name. This differs from an alternate or fictitious name that a corporation or LLC may be required to use when its legal name is unavailable during foreign qualification in another state.
  • Can a business have more than one DBA?
    Yes. A business may use multiple DBA names, although separate registrations may be required for each name and jurisdiction.
  • Can someone else use my DBA name?
    In most states, a DBA name isn’t protected from use by another business—unlike your legal name. DBA registration is meant to inform the public, not protect the business owner. To protect a business name that is not your legal name, you should consider registering a trademark.
  • What is a publication requirement?
    In some states, you’ll need to publish notice in a specific type of newspaper for a certain period of time and provide proof of publication before your DBA certificate is issued. Our experts are familiar with publication requirements throughout the country and can handle every detail on your behalf.
  • Does a DBA protect my business name?
    In most states, DBA registration does not provide exclusive rights to the name. Businesses seeking broader name protection should consider whether trademark registration is appropriate.
  • Does a DBA expire?

    It depends on the jurisdiction. Some registrations remain effective until canceled, while others must be renewed periodically.

    Contact CT Corporation for assistance.

  • What happens if my DBA information changes?

    An amendment may be required when information in the original registration changes. The exact requirement depends on the filing jurisdiction.

    Contact CT Corporation for assistance.

  • Can CT Corporation handle filings in multiple jurisdictions?

    Yes, CT Corporation can support you with U.S. Jurisdictions. CT Corporation identifies required agencies, prepares and submits DBA documents, coordinates publication where required, monitors the process, and delivers approved certificates.

    Contact CT Corporation for assistance.

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