DBA: Doing Business Under an Assumed Name
ComplianceOctober 30, 2023

DBA: Doing business under an assumed name (smart chart)

A corporation, LLC, partnership, or sole proprietorship that does business under an assumed name (also known as DBA) may be required to comply with state assumed-name statutes.

These statutes typically require the name to be registered with a state or local agency. They also impose penalties for failure to comply that the business and its owners and managers will want to avoid.

When a statutory business entity such as a corporation, limited liability company (LLC), or limited partnership (LP) does business under an assumed name (also known as a DBA or “Doing Business As”) that means it is using a name other than the one set forth in its formation document. When a general partnership or sole proprietorship does business under an assumed name, that means it is using a name other than that of its partners or sole proprietor.

At one time it was not clear whether a business could operate under a name other than the name on its formation document or the name of its sole proprietor or partners (e.g., its true name). However, it is now well established that businesses may enter into contracts and otherwise transact business under an assumed name and have those contracts and actions be considered valid.

Smart chart showing state by state voluntary assumed name filings for entities
State-by-state voluntary assumed name filings for entities

Why use an assumed name?

Many business entities are better known to the public by their assumed names than their true names. There are a variety of reasons why a business entity would use an assumed name, including the following:

  • It may have several divisions or products and wishes to do business under names that reflect each of those divisions or products 
  • It may want to be known by different names in different regions of the country 
  • It might want to be identified by a name other than its true name because of negative publicity
  • Its true name may be long, hard to spell or pronounce, or difficult to remember

Sole proprietors and partnerships may also want to do business under an assumed name for privacy reasons or to have the business name better reflect their products or services.

Assumed name statutes

Most states have statutory provisions governing the use of assumed names. In general, these statutes require business entities, individuals, and partnerships doing business under an assumed name to make a public filing. The document that is filed typically sets forth the assumed name, the true name, the state of formation, and the principal place of business.

An assumed name statute’s main function is to protect members of the public who deal with businesses that use names other than their true names. The public needs access to the true names of businesses for various purposes including checking credit ratings, searching for legal judgments, searching for security interests, bringing suit, and serving process.

In general, assumed name statutes apply only to business entities “doing business” under the assumed name. “Doing business” for the purpose of having to make an assumed name filing is different from “doing business” for other purposes such as having to qualify, or for determining whether a business entity is subject to personal jurisdiction or taxation in a state. Whether a business entity is “doing business” so as to be subject to the assumed name statute is a legal question that should be determined by the business entity’s counsel.

Beyond requiring a filing, there is little uniformity among the assumed name statutes. The statutes even differ as to what they call this kind of name. Although most use the term “assumed name” others use “fictitious name”, “trade name”, or another term.

Another difference is where the statutes are codified. Some assumed name provisions are found in the state’s business entity statutes. Others are found in the state’s laws dealing with consumer protection or unfair trade practices.

Assumed name filing procedures

The assumed name filing procedures vary by state. Some require the assumed name document to be filed with a state agency. Typically this will be the Secretary of State (or other business entity filing office). Others require filings to be made on the county level. This may be in the county where -

  • the principal place of business is located 
  • the registered office is located, or 
  • business is to be transacted

There are also states that require a filing with the state office, followed by a recording of the document with the county. Some states require publication in a local newspaper of the intention to register and do business under an assumed name. There are also some states where sole proprietorships and partnerships file on the county level and corporations and LLCs on the state level.

A number of states provide that the assumed name filing is effective for a certain period of years and must be renewed.

Others, however, do not limit the term. If a business decides to stop using one or more of its assumed names, it can generally make a filing to cancel its assumed name registration.

Another difference is whether the state will protect an assumed name from being used by any other business. In some states an assumed name is exclusive but in most it is not. This means that when an assumed name registration document is submitted for filing, the filing office will not check its records to see if there is anyone else who has registered that assumed name or reject the filing on that basis.

Penalties for non-compliance

Most assumed name statutes impose penalties on persons or entities that do business under an assumed name without making the required filing. In some states, there is a civil penalty while others impose criminal fines. In addition, some assumed name statutes provide that a non-compliant business may not maintain a suit or enforce a contract until it complies.

Another problem to be aware of is that the individual negotiating and entering into contracts for a corporation or LLC can end up being personally liable. This is generally not a statutory penalty but is based on the well-settled agency law principle that for a person doing business on behalf of another to avoid personal liability, that person (the agent) must disclose the fact of the agency and the identity of the principal (the corporation or LLC).

Voluntary assumed name vs involuntary fictitious/alternate name

The assumed name discussed in this article, which a business entity or individual voluntarily chooses to do business under, should not be confused with the name a business entity is required to register and do business under in a foreign state because its legal name is unavailable in that state.

Corporations, LLCs, and other business entities can transact business in states other than their formation state (so called “foreign” states). However, they are required to apply for authority to do business in those states and comply with the provisions of those states’ business entity laws that apply to foreign entities.

The business entity laws generally require the foreign entity’s name to be distinguishable upon the records of the Secretary of State from the names of other domestic or foreign business entities. If the legal name is not distinguishable, the foreign entity will be required to do business under a name that is distinguishable. That name is typically called a fictitious name or an alternate name. In the document the foreign business entity files to register to do business in the foreign state it must set forth both its legal name and the fictitious or alternate name it will do business under in the state.


There are many good reasons to do business under an assumed name.

However, a corporation, LLC, other entity types or individual that choose to do so should keep in mind that there are state statutes regulating the use of assumed names and that a failure to register the name may lead to unwanted consequences, including fines for the entity and personal liability for its owners or managers.

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Sandra Feldman
Publications Attorney
Sandra (Sandy) Feldman has been with CT Corporation since 1985 and has been the Publications Attorney since 1988. Sandy stays on top of the most pressing and pertinent business entity law issues that impact CT customers of all sizes and segments.

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