Updated August 14, 2026. Quick answer: a DBA is a name and nothing else. You do not have to take that from us — Florida’s legislature wrote it into the statute: the registration is for public notice only and gives you no right to own or use the name. What the filing actually decides is narrower and sharper than protection: in California, Florida and Texas, skipping it can stop you suing on your own contract.
What a DBA is, in the statute’s own words
Most pages on this subject tell you a DBA gives no liability protection and move on. Florida says it out loud, and says more than that:
“— Notwithstanding any other law, registration under this section is for public notice only, and does not give rise to a presumption of the registrant’s rights to own or use the name registered, nor does it affect trademark, service mark, trade name, or corporate or other business entity name rights previously acquired by others in the same or a similar name.”
Fla. Stat. § 865.09(8)
Three things in one sentence. It is notice. It does not make the name yours. And it does not touch somebody else’s prior rights in the same name — so filing a DBA over a name that is already a trademark buys you a receipt, not a defence. Nothing in California’s or Texas’s assumed-name chapters creates an entity or a shield either; that is a negative from reading them, and it is why the answer to “does a DBA protect me” is always no. What protection looks like, and whether you need it, is a different question.
The consequence that is real: the courthouse door
The filing is not optional in the states that have one, and the enforcement is not usually a fine. It is that your contract becomes unenforceable by you.
“No person transacting business under a fictitious business name contrary to the provisions of this chapter, or his assignee, may maintain any action upon or on account of any contract made, or transaction had, in the fictitious business name in any court of this state until the fictitious business name statement has been executed, filed, and published as required by this chapter.”
Cal. Bus. & Prof. Code § 17918
“(a) If a business fails to comply with this section, neither the business nor the person or persons engaging in the business may maintain any action, suit, or proceeding in any court of this state with respect to or on behalf of such business until this section is complied with.”
Fla. Stat. § 865.09(9)(a)
Texas draws the line most precisely of the three, and the precision is worth having:
“A person’s failure to comply with this chapter does not impair the validity of any contract or act by the person or prevent the person from defending any action or proceeding in any court of this state, but the person may not maintain in a court of this state an action or proceeding arising out of a contract or act in which an assumed name was used until an original, new, or renewed certificate has been filed as required by this chapter.”
Tex. Bus. & Com. Code § 71.201(a) (read from an archived capture, 2025-11-23)
So the contract is still good, you can still defend yourself, and you cannot sue. That is the exact shape of the risk: it does nothing at all until the day a customer does not pay, and then it does everything. Florida grades the failure as noncriminal:
“Any person who fails to comply with this section commits a noncriminal violation as defined in s.”
Fla. Stat. § 865.09(9)(c)
Texas does not:
“An offense under this section is a Class A misdemeanor.”
Tex. Bus. & Com. Code § 71.202(b) (read from an archived capture, 2025-11-23)
Where you file is not one answer
People assume this is a state filing. In Texas it depends on what you are. An unincorporated person files with the county:
“A person shall file the certificate in the office of the county clerk in each county in which the person:”
Tex. Bus. & Com. Code § 71.054 (read from an archived capture, 2025-11-23)
— and in each county where it operates. A registered entity files somewhere else entirely:
“A corporation, limited partnership, limited liability partnership, limited liability company, registered series of a limited liability company, or foreign filing entity required to file a certificate under Section 71.101 shall file the certificate in the office of the secretary of state.”
Tex. Bus. & Com. Code § 71.103(a) (read from an archived capture, 2025-11-23)
Same state, same document, two different offices, and the fork is your entity type rather than your business. California is a county filing too, which is why there is no single California DBA fee.
California’s three clocks
California is the state that catches people, because filing is only the first of three steps and each has its own deadline.
“File a fictitious business name statement in accordance with this chapter not later than 40 days from the time the registrant commences to transact such business.”
Cal. Bus. & Prof. Code § 17910
“(a) Within 45 days after a fictitious business name statement has been filed pursuant to this chapter, the registrant shall cause a statement in the form prescribed by subdivision (a) of Section 17913 to be published pursuant to Section 6064 of the Government Code in a newspaper of general circulation in the county where the fictitious business name statement was filed or, if there is no such newspaper in that county, in a newspaper of general circulation in an adjoining county.”
Cal. Bus. & Prof. Code § 17917(a)
“An affidavit showing the publication of the statement shall be filed with the county clerk where the fictitious business name statement was filed within 45 days after the completion of the publication.”
Cal. Bus. & Prof. Code § 17917(d)
40 days to file, 45 days to publish, 45 days to file the proof — up to 130 days of elapsed process, and § 17918 above means you are not compliant, and cannot sue on the name, until the publishing is done as well as the filing. Florida has a lighter version of the same idea:
“Certification by at least one registrant that the intention to register such fictitious name has been advertised at least once in a newspaper as defined in chapter 50 in the county in which the principal place of business of the registrant is or will be located.”
Fla. Stat. § 865.09(3)(a)5.
And California’s expires:
“a fictitious business name statement expires five years from the date it was filed in the office of the county clerk.”
Cal. Bus. & Prof. Code § 17920(a)
5 years, and no county sends a reminder.
Three states where there is nothing to file
Not every state has this filing at all, which is worth knowing before you go looking for a form that does not exist. Two of the three say so themselves. Kansas:
“This application does not register an assumed, fictitious, trade, or DBA (doing business as) name.”
Kansas Secretary of State, Register a Business
South Carolina:
“Sole proprietorships and general partnerships do not file with the Secretary of State’s Office.”
South Carolina Secretary of State, Business Entities
“The Secretary of State’s Office administers corporate filings for corporations, nonprofit corporations, limited liability companies, limited partnerships, and limited liability partnerships.”
South Carolina Secretary of State, Business Entities
New Mexico is recorded differently and deliberately. Its Secretary of State publishes a table of every statute governing business in the state, and no trade-name or fictitious-name act appears on it — but no New Mexico page was found that says so in words. That is an absence in an official enumeration, which is weaker evidence than Kansas’s sentence, and it is marked that way here rather than rounded up.
What this page does not do
- It reads six states. California, Florida and Texas at statute; Kansas, South Carolina and New Mexico for the negative. The other 45 jurisdictions were not read and their rules differ.
- It prints no filing fee. In California and Texas the DBA is a county filing and the fee is set county by county, so a single national figure would be wrong everywhere.
- The California publication cadence is not quoted because § 17917(a) does not contain it — it cross-refers to Government Code § 6064, which was not read at primary here. The deadlines above are quoted; the weeks-and-newspapers detail is not.
- New Mexico is an enumeration-based negative, not a statutory one. See the section above.
- It is not trademark advice. A DBA and a trademark are different systems, and Florida’s statute says so.
- Texas statutory text is from an archived capture of the state’s own site; the live site no longer serves the statute text itself.
Sources
Every figure on this page is computed from the text quoted below, as read on August 14, 2026. Each row links the document it was read from.
| What it establishes | Source |
|---|---|
| HEADLINE: the legislature says in the statute that the filing gives you nothing. Public notice only. | Fla. Stat. § 865.09(8) |
| Florida requires registration BEFORE you trade under the name. | Fla. Stat. § 865.09(3)(a) |
| Florida has its own newspaper requirement – once, before filing. | Fla. Stat. § 865.09(3)(a)5. |
| Florida’s courthouse-door bar for an unregistered fictitious name. | Fla. Stat. § 865.09(9)(a) |
| Florida’s penalty is expressly NONcriminal – which matters, because Texas’s is not. | Fla. Stat. § 865.09(9)(c) |
| California’s 40-day filing deadline runs from when you START, not from when you get round to it. | Cal. Bus. & Prof. Code § 17910 |
| California makes you buy a newspaper advertisement, and the cadence is not even in this section – it is cross-referenced to the Government Code. | Cal. Bus. & Prof. Code § 17917(a) |
| A second 45-day clock most people never hear about. | Cal. Bus. & Prof. Code § 17917(d) |
| The real consequence: you cannot sue on your own contract until you have filed AND published. | Cal. Bus. & Prof. Code § 17918 |
| It expires. Five years, and nobody sends a reminder. | Cal. Bus. & Prof. Code § 17920(a) |
| An unincorporated person files at the COUNTY level, in every county where it operates. | Tex. Bus. & Com. Code § 71.054 — archived capture 2025-11-23 |
| A registered entity files with the SECRETARY OF STATE. Same state, same document, two different offices, and the fork is the entity type. | Tex. Bus. & Com. Code § 71.103(a) — archived capture 2025-11-23 |
| Texas is precise in a way the other two are not: the contract stays valid, you may still DEFEND, but you may not sue. | Tex. Bus. & Com. Code § 71.201(a) — archived capture 2025-11-23 |
| Texas attaches a criminal penalty where Florida expressly does not. | Tex. Bus. & Com. Code § 71.202(b) — archived capture 2025-11-23 |
| Kansas says it in its own words. CONFIRMED_ABSENT. | Kansas Secretary of State, Register a Business |
| South Carolina’s own scope statement, which has no fictitious-name filing in it. | South Carolina Secretary of State, Business Entities |
| The entity types that would use a DBA have no filing at all in South Carolina. CONFIRMED_ABSENT. | South Carolina Secretary of State, Business Entities |
General consumer information, not financial, tax or legal advice. State rules are as published by the cited source on 2026-08-14 and change; your own facts govern, and a registration or reinstatement question with money on it is one to put to a lawyer or accountant in that state.