What a Texas Assumed Name Certificate (DBA) Actually Is
A Texas assumed name certificate records that a named person or entity trades under something other than its legal name. Take an Austin sole proprietor invoicing as "Barton Creek Studio," and a Dallas LLC selling under a second brand. Both file a certificate, but in different places: the county clerk for the individual, the Secretary of State for the entity.
Texas entities file with the SOS for $25. Sole proprietors and partnerships file with the County Clerk. The 10-year renewal cycle is among the longest of any state. That's one of the distinguishing features of Texas's DBA system. You file at both the state level (for LLCs and corporations) and the county level (for sole proprietors and partnerships), and processing typically takes 2-5 business days. Texas does not require newspaper publication.
When you need a Texas Assumed Name Certificate (DBA)
Four situations require a Texas assumed name certificate. An individual or general partnership trades under anything other than the owners' surnames. An entity launches a brand different from the name on its certificate of formation. An entity keeps the trading name of a business it acquired. Or any operator has customers who pay to a name the bank cannot connect to the account.
Why the DBA matters even when you have an LLC
Forming an LLC does not make the certificate unnecessary in Texas. It just changes where you file it. The name on the certificate of formation is the only name the entity may use in contracts and banking, until an assumed name certificate is on file. The entity route is one $25 filing with the Secretary of State, rather than a separate certificate in every county where you keep premises.
How to File a Texas Assumed Name Certificate (DBA)
Texas DBA at a Glance
| Item | Value |
|---|---|
| State terminology | Assumed Name Certificate (DBA) |
| Filing level | Both |
| Filing agency | Texas SOS for entities, County Clerk for sole props |
| State fee | $25 |
| County fee (where applicable) | $15-$25 |
| Renewal period | 10 years |
| Publication required | Not required |
| Processing time | 2-5 business days |
The Texas sequence below settles the filing office question first, because everything after it depends on that answer. Clearance, filing, and the expiry date follow. The county steps apply only to individuals and to partnerships that have never registered with the state.
Step 1: Confirm name availability
Before you file, search the Texas business name database to confirm that the proposed Assumed Name Certificate (DBA) is not already in use by another registered business in the state. The search is free, and you can do it through sos.state.tx.us / county clerk (or the relevant county portal where applicable). A name conflict will cause the state to reject the filing.
Step 2: Gather required information
The Texas Assumed Name Certificate (DBA) filing requires the proposed trade name. It also requires the legal name of the owner (individual, LLC, corporation, or other entity). You must give the principal business address. Add a brief description of the business activity. And provide the signature of an authorized signer. For LLCs and corporations, you must also give the entity's state file number.
Step 3: File the Assumed Name Certificate (DBA) with Texas SOS for entities, County Clerk for sole props
Submit the completed registration through sos.state.tx.us / county clerk (or the relevant county clerk for county-level filings). The state typically processes online filings in 2-5 business days. Paper filing takes longer. The state filing fee is $25, plus county fees of $15-$25.
Step 4: Complete publication (where required)
Texas does not require newspaper publication for Assumed Name Certificate (DBA) registrations, the filing is complete once accepted by Texas SOS for entities, County Clerk for sole props.
Step 5: Calendar the renewal
The Texas Assumed Name Certificate (DBA) is valid for 10 years. Set a calendar reminder for 60-90 days before the renewal deadline, so you have time to process it.
File your Texas DBA
We check name availability, prepare the registration, file it with the right office, and track the renewal. Or keep reading and file it yourself.
Common Texas DBA Mistakes to Avoid
Four mistakes consistently cause delays or rejections for Texas Assumed Name Certificate (DBA) filings.
Mistake 1: Choosing a name too similar to an existing registered name
Texas does not screen assumed names for conflicts at all. Form 503 is accepted whether or not the name duplicates an existing one. That's why the search has to happen before you file, not be left to the state. Check the entity register, the county indexes for the counties you will trade in, and the federal trademark database, in that order.
Mistake 2: Failing to update the DBA when business information changes
A Texas assumed name certificate names the filer and the address as of the filing date, and it does not update itself. A change of registered office, an amendment to the entity name, or a change in ownership all leave the certificate describing a business that no longer matches the state record. That mismatch is what stalls a bank review or a bid submission.
Mistake 3: Forgetting to renew on time
Texas Assumed Name Certificate (DBA) registrations expire 10 years after registration. You cannot use an expired DBA in contracts, invoices, or banking. File the renewal before it expires to maintain continuity. If a DBA lapses, you typically need a new filing, and another business may have registered the name in the meantime.
Mistake 4: Confusing DBA registration with trademark protection
Because Texas accepts every assumed name certificate presented to it, acceptance tells you nothing about whether the name is free. Two Texas businesses can hold the same assumed name at the same time, and both certificates stay valid. Exclusivity comes from trademark law, at the state or federal level. That's a separate filing, decided on a different test.
How File.Business Handles Texas DBA Filings
File.Business files Texas Assumed Name Certificate (DBA) registrations as part of our DBA service. We search the Texas business name database to confirm availability, prepare the registration with your business information, and file through sos.state.tx.us / county clerk (or the relevant county clerk where applicable). We pay the $25 state fee plus county fees, calendar the renewal every 10 years, and deliver the approved registration to your document vault. For multi-entity portfolios, we coordinate multiple DBA filings under a single engagement.
Why most Texas founders use File.Business for DBA
Three reasons stand out. The entity track and the county track are still confused constantly, and filing on the wrong one leaves the name unregistered. Texas runs no conflict check, so the search carries all the weight. And a ten-year term is long enough that nobody remembers the expiry, which is exactly when the statutory bar on maintaining an action quietly returns.
Frequently Asked Questions
Where do I file a DBA in Texas?
You file with the Texas SOS for entities, County Clerk for sole props for LLCs and corporations, or with the County Clerk for sole proprietors and partnerships. The state portal is sos.state.tx.us / county clerk.
How much does it cost to file a DBA in Texas?
The Texas Assumed Name Certificate (DBA) state filing fee is $25 plus county fees of $15-$25.
How long does a Texas DBA registration take?
Standard Texas processing is 2-5 business days. No publication delay applies in this state.
Does Texas require newspaper publication for a DBA?
No. Texas does not require newspaper publication for DBA registrations. You still want the name cleared before use. A DBA does not create exclusive rights the way a trademark does.
How long is a Texas DBA valid?
Texas DBA registrations are valid for 10 years.
Does filing a Texas DBA protect the name as a trademark?
No. Texas DBA registration grants the right to operate under the name in Texas. It does not grant trademark protection. Another business in Texas can register a similar DBA later. For trademark protection, file a state or federal trademark registration besides the DBA.
Can File.Business handle my Texas DBA registration?
Yes. File.Business handles the entire Texas Assumed Name Certificate (DBA) filing process. That includes name availability search, registration preparation, filing through sos.state.tx.us / county clerk, payment of all fees, renewal tracking on our compliance calendar, and delivery of the approved registration to your document vault.
Ready to file your Texas DBA?
File.Business handles the entire Texas Assumed Name Certificate (DBA) filing: name availability search, registration preparation, filing with Texas SOS for entities, County Clerk for sole props, payment of all fees, renewal tracking, and delivery of the approved registration. One engagement, end to end.
Doing this in Texas specifically: Texas DBA filing covers the detail for this state, including the current fee and the exact form the agency expects.
Where a Texas Assumed Name Certificate Is Actually Filed
Texas is one of the few states that splits assumed name filing between two levels of government, and the split follows the filer, not the name. Chapter 71 of the Business and Commerce Code draws the line between a "registered entity" and an "unincorporated person." Get the side wrong, and you either pay twice, or you pay nothing and stay unregistered.
Entities file Form 503 with the Secretary of State
If your filer is an LLC, a corporation, a limited partnership, an LLP, or any other entity already on the Secretary of State's record, Tex. Bus. & Com. Code § 71.101 requires the Assumed Name Certificate, Form 503, and § 71.103 sends it to the Corporations Section at sos.state.tx.us or through SOSDirect. The fee is $25 per assumed name, and the certificate takes effect on filing.
Form 503 asks for the assumed name and the entity's legal name exactly as shown on its formation document. It also asks for the state file number, the entity type, the jurisdiction of formation, and the period during which the name will be used.
That period is what people miss: you choose it, and the statute caps it at ten years. Our Texas forms index lists Form 503 alongside the amendment and termination forms that use the same file number.
Before September 1, 2019, a Texas LLC using a trade name had to file the same certificate twice, once with the state, and once in every county where it kept premises. House Bill 3609 ended the county duty for entities on the Secretary of State's record. If a filing service or an older checklist still tells your LLC to walk a certificate to the county clerk, that instruction is six years out of date. It will cost you a county recording fee for nothing.
Sole proprietors and general partnerships file with the county clerk
An individual doing business under anything other than their surname, and a general partnership that has never registered with the state, must file an assumed name certificate with the county clerk in each county where the business maintains premises or conducts business. Texas has 254 counties, and each sets its own recording fee inside the $15 to $25 band.
Most counties require a notary to acknowledge the signature. That's the single most common reason a mailed county certificate comes back. There is no statewide sole proprietor index, so a name that is free in Harris County tells you nothing about Bexar County.
Either way, run the name through the Texas business search first. If the brand matters, run a trademark clearance search too. If the name is going on signage before you file, a name reservation holds it for 120 days while the paperwork moves. Current amounts for all of these sit on the Texas filing fee schedule.
What Happens If You Trade Under an Unfiled Texas Name
Texas does not send a warning letter when a business starts invoicing under a name it never registered. The consequence arrives later, usually at the worst possible moment, and it arrives in three forms.
You lose the right to sue on the deal
Chapter 71 does not void a contract signed under an unregistered assumed name. It does something more practical and more painful: it stops the user of the name from bringing a lawsuit in a Texas court over a contract or act where the assumed name was used, until an original, new, or renewed certificate has been filed. A remodeler who invoiced $84,000 of work as "Lone Star Renovations" without a certificate can still be sued by the customer. But the remodeler cannot bring its own collection suit until it files.
Courts routinely abate rather than dismiss, but abatement means the case stops while the clock on your cash flow does not. The cure is a $25 filing you could have made on day one.
Where the failure is deliberate and made with intent to defraud, chapter 71 turns criminal. The offense is a Class A misdemeanor. In Texas, that carries a fine of up to $4,000 and up to a year in county jail. Prosecutions are rare. The civil abatement is not.
Banking and payment refusals
Under federal customer identification rules, a bank opening a business account has to tie the operating name to a legal person. A file-stamped assumed name certificate is the standard proof, paired with the EIN letter. Without it, a Texas bank will not add "Lone Star Renovations" as a d/b/a on the account. That means checks written to the brand cannot be deposited, and card processors will not settle to a descriptor the underwriting file does not support.
Businesses in this position often discover it the week a large customer switches from paying an individual to paying a company. Our notes on business banking documentation and the EIN application cover what the bank actually asks for.
What an expired Texas certificate costs
Texas gives you the longest runway in the country, up to ten years. That's exactly why Texas certificates lapse. Ten years is longer than most operating agreements, most bank relationships, and most bookkeepers. When the stated period ends, the certificate stops being current, and the chapter 71 bar on maintaining an action switches back on for anything transacted after that date. The remedy is a new or renewed certificate, $25 with the state, or $15 to $25 per county, plus the 2-5 business day delay while it processes.
The real cost is the interval: every invoice issued between expiry and refiling sits under a name with no current certificate behind it. Put the expiry date in the same calendar as your Texas franchise tax and Public Information Report deadline of May 15. That's covered in detail in the 2026 Texas annual report guide.
Three Texas Assumed Name Filings in Practice
Scenario one: a sole proprietor in Travis County
A photographer in Austin operates as herself and wants to invoice as "Barton Creek Studio." She is an unincorporated person, so the Secretary of State is not her filing office. She takes an assumed name certificate to the Travis County Clerk, has her signature notarized, and pays the county recording fee inside the $15 to $25 range.
Total outlay is under $30, and the record is available the same day in most counties. Her bank adds the d/b/a to her existing account, off the file-stamped copy. Nothing about the filing changes her tax position or shields her personal assets. That's why she also runs the numbers on an LLC against a sole proprietorship before her second season.
Scenario two: an LLC running a second brand
A Dallas LLC formed as "Trinity Field Services LLC" wins consumer work and wants that side of the business to trade as "Trinity Home Comfort." The entity is on the Secretary of State's record, so it files Form 503 for $25 and never touches a county clerk. Texas charges no annual report fee for an LLC, and formation runs $300. So forming a second LLC instead would have cost $300 up front, plus a second registered agent and a second franchise tax filing.
The assumed name keeps one registered agent, one tax account, and one certificate of status to maintain. The trade off is that both brands share liability, which is discussed in the mistakes below.
Scenario three: a contractor working four counties
A general partnership of two roofers trades as "Panhandle Roofworks" out of a yard in Potter County, and keeps storage in Randall, Lubbock, and Hale counties. As an unregistered partnership, it has no state filing office. So it files four county certificates, one per county where it maintains premises. At the top of the county band, that's roughly $100 in recording fees plus four notarizations. Each county keeps its own index and its own expiry.
When the partners later convert to an LLC to bid municipal work, the entity files one Form 503 for $25, and the county certificates become redundant for the new entity. Sequencing matters here: form the entity first, then file the state certificate. Otherwise you pay for county filings you will abandon within the year. Compare that path with forming the LLC and reading the 2026 Texas certificate of status guide.
Five More Texas DBA Mistakes That Cost Money
Mistake 5: Treating the certificate as liability protection
What happens. A sole proprietor files an assumed name certificate and believes the business is now separate from the person. Why it happens. The certificate is issued by a government office and carries a file stamp, which reads like incorporation. Consequence. A judgment against "Barton Creek Studio" is a judgment against the individual. It can reach personal accounts, vehicles, and home equity, to the extent Texas exemptions allow.
Prevention. If asset separation is the goal, the filing you need is a certificate of formation at $300, not a certificate at $25. The assumed name can then sit on top of the LLC.
Mistake 6: Budgeting for a publication requirement Texas does not have
What happens. A filer copies a checklist written for a publication state and holds the launch while shopping for a newspaper notice. Why it happens. Several large states require a fictitious name to run in a newspaper for weeks before the registration is complete, and generic guides blend the rules together. Consequence. Weeks of delay and several hundred dollars of unnecessary legal-notice spend. Prevention. Texas requires no publication for an assumed name. The certificate takes effect as soon as the Secretary of State or the county clerk accepts it, with nothing else pending.
Mistake 7: Filing at the wrong level
What happens. An LLC files at the county clerk, or a sole proprietor mails Form 503 to Austin. Why it happens. The 2019 change to entity filing is recent enough that old templates survive, and the word "DBA" gets used for both tracks. Consequence. The sole proprietor's Form 503 gets rejected, and the fee comes back weeks later, leaving the name unregistered the entire time.
The LLC's county filing is accepted and simply does nothing. Prevention. Ask one question: is the filer already on the Secretary of State's record? Yes means Form 503 for $25. No means the county clerk in every county with premises.
Mistake 8: Letting the ten year term run out quietly
What happens. The stated period on the certificate ends and nobody notices, because Texas sends no renewal notice. Why it happens. Ten years outlasts the staff who filed it. Consequence. The chapter 71 bar on maintaining an action applies again, and a competitor is free to file the same assumed name.
Prevention. Record the exact expiry date from the certificate, not the filing date, and set the reminder 90 days early. Filing a new or renewed certificate before expiry costs the same $25, and keeps the chain unbroken. Our compliance calendar tracks the date alongside the franchise tax report.
Mistake 9: Reading the certificate as a trademark
What happens. The owner sees the name on a state record and assumes exclusivity. Why it happens. Texas performs no conflict check on assumed names, so the filing is always accepted, which feels like approval. Consequence. Two Texas businesses can hold the identical assumed name at the same time. A later user with a federal registration can force a rebrand of signage, vehicles, and packaging regardless of who filed the certificate first.
Prevention. Clear the name, then register it. A state or federal trademark is the instrument that creates exclusivity. The assumed name certificate only records who is behind the name. Sales tax registration is separate again, and the Texas sales tax permit uses the legal name with the assumed name shown as a d/b/a.
For the state landing page and the current form links, see Texas DBA and assumed name filing.
This guide is written from the official sources below. Fees, forms, and deadlines change. Confirm the current requirement with the agency before you file.
Disclosure. File.Business is a private filing service, not a government agency and not a law firm. We prepare and submit filings at your direction, and nothing on this page is legal or tax advice. Filing fees, deadlines, and statutory references are current as of the last-updated date shown above and can change. Confirm current requirements with the relevant state agency before you file.
