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Do I Need a DBA? When a Fictitious Business Name Is Required

You need a DBA (also called an assumed name, trade name or fictitious business name) when you do business under any name other than your own legal name. For an LLC, the legal name is the exact name in its articles of organization, "LLC" included. For a sole proprietor, it is your own name. Most states make the filing mandatory once you trade under a different name, but a handful make it optional for LLCs. And a DBA never creates a company, never protects your personal assets, and never gives you exclusive rights to the name.

Last checked 2026-11-14. General information, not legal or tax advice.

Every state's rule turns on the same question: is the name on your sign, website, invoices and contracts your legal name, or something else?

  • An LLC trading under its exact registered name needs nothing. In Texas, trading under the exact name on your certificate of formation needs no filing (Tex. Bus. & Com. Code § 71.003(b)). Florida exempts an active, registered LLC unless the name it uses differs from the name it is registered under (Fla. Stat. § 865.09(7)).
  • Dropping "LLC" usually counts as a different name. In California, an LLC's fictitious business name is any name other than the name stated in its articles of organization (Cal. Bus. & Prof. Code § 17900(b)(5)), so "Acme Bakery" is a fictitious name for "Acme Bakery LLC". Texas defines an LLC's assumed name the same way (Tex. Bus. & Com. Code § 71.002).
  • A sole proprietor's test is their surname. In California, an individual's name is fictitious if it does not include the individual's surname or suggests additional owners (§ 17900(b)(1)). So "Jane Smith Photography" needs no statement there, while "Sunrise Photography" does. Other states word the test differently, so check your state's page.

Four common situations

  • You're a sole proprietor with a brand name. This is the classic DBA case. Without one, you generally can't put the brand on contracts and invoices in a state that requires registration, and many sole proprietors file at the county rather than the state (Texas, Illinois and New York, for example, send sole proprietors to the county while LLCs file with the state).
  • Your LLC sells under a shorter or friendlier name. "Apex Holdings LLC" selling as "Apex Coffee" needs a DBA in most states. In New York, nobody may carry on business under a name other than their real name without filing a certificate, and an LLC files it with the Secretary of State (N.Y. Gen. Bus. Law § 130(1)). In Virginia the certificate goes to the clerk of the State Corporation Commission (Va. Code § 59.1-69(B)).
  • One LLC, several brands. Each brand is a separate DBA under the same company. That is cheap, but every brand shares one liability bucket. Whether to stay with DBAs or split into separate LLCs is covered in DBA under an LLC vs. multiple LLCs.
  • Your bank or payment processor wants it. Banks commonly ask for the filed DBA before they will accept deposits or open an account in the trade name. That is a bank policy, not a statute, and it applies even in states where filing is optional.

States where an LLC doesn't have to file

In our state-by-state review of all 50 states and DC, an LLC is not required to register a DBA in Alabama, Delaware, Hawaii, Kansas, Mississippi, Nebraska, South Carolina, Wisconsin and Wyoming. A few examples of what the statutes say:

  • Delaware: an LLC doing business under a name that doesn't disclose its legal name "may, but is not required to, register the trade name" (6 Del. C. § 3108(a)).
  • Wyoming: a person who adopts a trade name "may" file an application with the Secretary of State (W.S. 40-2-104), and the Act sets no penalty for skipping it.
  • South Carolina: there is no state or county DBA filing at all; the name goes on your city or county business license.

Optional does not mean pointless. Registering puts the name on the public record and is usually what a bank asks to see. Sole proprietors in some of these states still have their own rules, so the state page is the place to check.

What happens if you skip a required DBA

The usual consequence isn't a fine. It is losing the right to sue on your own contracts until you fix it:

  • California: you cannot bring an action in a California court on a contract made in the fictitious name until the statement has been filed and published (Cal. Bus. & Prof. Code § 17918).
  • New Jersey: an LLC that should have registered an alternate name can't sue on a contract made under it until it files, though the contract stays valid and the LLC can still defend a suit (N.J. Stat. § 42:2C-9).

Some states add civil penalties or a misdemeanor on top, and some state no penalty at all. Your state's page lists what its statute says.

What a DBA does not do

  • It doesn't create a business entity. A DBA is a public notice that an existing person or company is using another name. It has no separate legal existence, owns nothing and files no tax return.
  • It doesn't protect your personal assets. A sole proprietor with a DBA is still personally liable for every business debt. Liability protection comes from forming an LLC or corporation, not from registering a name.
  • It usually doesn't give you exclusive rights to the name. Mississippi says registration "is for public notice only" and gives rise to no presumption of exclusive rights (Miss. Code Ann. § 75-93-13). California is a partial exception: the first registrant actually using a name in a county gets a rebuttable presumption of exclusive right to it in that county (Cal. Bus. & Prof. Code § 14411), but filing still doesn't authorize a name that infringes someone else's trademark or trade name rights (§ 14418). National protection for a brand comes from federal trademark registration (15 U.S.C. § 1051), which is a separate process.

Where you file and what it costs

It depends on the state and on whether you are an LLC or a sole proprietor. Some states take every DBA at the Secretary of State, some send everyone to a county clerk (California) or a town clerk (Connecticut, Massachusetts), and many split it: LLCs at the state, sole proprietors at the county. Filing fees run from $5 (Iowa) to $175 (Fulton County, Georgia), and some states, California among them, add newspaper publication on top.

The DBA and assumed name hub has the office and fee for every state and DC, each taken from the statute or the filing office's own fee schedule, with a full guide for each state.

Next steps

Form your LLC with CorpusOr let your AI assistant do the intake

If you already have a company and only need the name, Corpus can file the DBA for you. To decide between one LLC with several DBAs and several LLCs, read the comparison guide.

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Want us to handle the DBA filing?

DBA filing for an existing LLC: $199 service fee plus itemized filing costs. We confirm your state, county and filing scope before you pay.

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Sources

Last checked 2026-11-14. Corpus is not a law firm and does not provide legal or tax advice.