How to Set Up a DBA Under an LLC: Filing, Fees, and Renewals

To set up a DBA under an LLC, you run a name search in the jurisdiction where you’ll file, submit a fictitious business name statement (sometimes called a certificate of assumed name) to either your Secretary of State or your county clerk, list the LLC itself as the registrant, pay a filing fee that in most places falls under $100, and in a handful of states publish a notice in a local newspaper. The DBA does not create a new entity. It links an alternate public-facing name to your existing LLC, so your liability protection, tax structure, and EIN all carry over unchanged.¹

Pick a Name That Will Clear the Search

Start by searching for conflicts. Your proposed name has to be distinguishable from every other registered entity in the jurisdiction where you’re filing. Most Secretary of State websites host a free business name search, and county clerks keep their own records if you’re filing at the county level. Skipping this step is the most common reason DBA applications get rejected.

Some words are restricted outright. An LLC generally cannot put “Corporation,” “Inc.,” or “Incorporated” in a DBA, because those terms imply a different legal structure. Words like “Bank,” “Trust,” “Insurance,” or “University” usually need approval from the relevant regulatory agency. Professional terms tied to licensed fields — “Attorney,” “Medical,” “Engineering,” “Architect” — are restricted in many states unless the entity holds the matching license.

The name also cannot mislead the public about what the business is. A for-profit LLC cannot adopt a DBA that implies it’s a government agency or a nonprofit. Filing a name that violates these rules gets you rejected, and intentionally misleading names can trigger penalties for deceptive trade practices in some states.

Where to File

Where you file depends on your state. Some states handle DBAs through the Secretary of State. Others push it down to the county clerk in the county where the business operates. A few require both, and a few don’t require DBA registration at all.² Check your state government’s website or call the Secretary of State’s business services division to confirm which office handles the filing.

If your LLC does business in more than one state under the alternate name, you’ll likely need a separate DBA in each of those states. An LLC formed in one state and operating in another is a “foreign LLC” in the second state and has to meet that state’s DBA rules on its own, with its own fee.

What Goes on the Form

The form is usually titled a Fictitious Business Name Statement or a Certificate of Assumed Name. You’ll be asked for:

The LLC’s legal name, exactly as it appears in state filing records.
The proposed DBA name.
The entity identification number the state assigned when you formed the LLC (format varies by state).
A physical business address where legal documents can be served. Most jurisdictions won’t accept a P.O. box alone.
Names and addresses of the managing members or authorized officers who will sign for the LLC.

List the LLC itself as the registrant, not an individual member. Putting a member’s personal name in the registrant field instead of the LLC’s legal name can sever the legal connection between the DBA and the entity, which is exactly the connection you’re filing to establish. An authorized member or manager signs on the LLC’s behalf, and many jurisdictions require that signature to be notarized or made under penalty of perjury.

Most states accept electronic filings, and in some places online submission is now the default. Online filings are often confirmed within a few business days. Mail-in filings are still available in most states but can take several weeks.

Fees and Publication

Government filing fees for a DBA typically run between $10 and $150, with the SBA noting that fees are usually under $100.² The exact amount depends on your state and whether you’re filing at the state or county level. Some counties charge their own fee on top of a state fee, so if you’re required to file with both, budget for two payments. Online portals usually take credit or debit cards. Mail-in filings often require a cashier’s check or money order.

A few states — including California and Nebraska — require you to publish a notice of your new fictitious business name in a local newspaper of general circulation after filing.² Where publication is required, the notice typically runs once a week for four consecutive weeks. The newspaper then issues an affidavit of publication, which you file with the clerk’s office. Publication fees commonly range from $30 to $150 depending on the paper.

Watch the publication deadline. Publication states generally set a window of roughly 30 to 45 days from your original filing date for the first notice to appear. Miss it and your DBA registration can be canceled, forcing you to start over with a new filing and new fees.

Using the DBA Once It’s Approved

Opening a Bank Account

One of the most common reasons to file a DBA is to open a business bank account under your brand name. Banks want documentation showing the link between the LLC and the DBA. Bring your filed DBA certificate, the LLC’s Articles of Organization, your EIN, and a government-issued ID for the person opening the account.³ Without the DBA certificate, most banks will not let you deposit checks made out to the DBA name.

Signing Contracts

Sign contracts in a way that keeps the LLC visible. If you sign using only the DBA name without referencing the LLC, a court can treat the contract as a personal obligation. The clean format: your signature, your printed name, your title (such as “Managing Member”), and the business name written as “[LLC Legal Name], d/b/a [DBA Name].” That signals you’re signing in a representative capacity for the LLC.

Taxes and EIN

A DBA doesn’t change your LLC’s tax situation. You do not need a new EIN just because you’re adding or changing a business name.¹ Income earned under the DBA is reported on the LLC’s existing tax return using the existing EIN. For a single-member LLC, that income flows through to your personal return on Schedule C, E, or F depending on the activity.⁴ Multi-member LLCs continue to file Form 1065.

Renewals and Amendments

DBA registrations don’t last forever. In most states a fictitious business name filing expires after five years and has to be renewed before the expiration date. If you let it lapse, the registration simply dies. Most jurisdictions don’t offer a grace period or reinstatement, so you’d file a brand-new DBA, pay the full fee again, and in publication states run the newspaper notice all over again.

Keep the information on file current. If the LLC changes its address, swaps managing members, or alters other details listed on the original statement, file an amendment. Amendment fees are typically modest, often around $25, but failing to update can produce fines or an involuntary cancellation. Set a calendar reminder well before the renewal date.

What a DBA Does Not Do

A DBA is public notice, not a property right. Registering one tells the government and the public that your LLC is operating under a particular name. It does not give you exclusive rights to that name, and it does not stop another business from using the same or a similar name elsewhere. The U.S. Patent and Trademark Office draws the distinction cleanly: a trade name (DBA) is “simply the name of your business” registered with your state, while a trademark “provides legal protection for your brand” and secures “nationwide ownership rights.”⁵

If you want the ability to stop competitors from using your name, that’s a federal trademark registration through the USPTO, filed separately. Before you lock in a DBA, search the USPTO’s trademark database so your chosen name doesn’t collide with an existing registered mark. A trademark holder can force you to stop using a conflicting name regardless of your DBA, and you could face a federal infringement claim under 15 U.S.C. § 1125 for using a name likely to cause consumer confusion about the source of goods or services.⁶

On the other side, skipping the DBA when your state requires one has its own costs. In states that require registration, operating under an unregistered name can bar your LLC from filing lawsuits or enforcing contracts until you come into compliance, and some states impose civil penalties or criminal fines. There’s also a personal liability angle: if the link between your LLC and the name you’re using isn’t on the public record, a court can treat the person who signed contracts under that unregistered name as personally liable for them.

1
Internal Revenue Service. When to Get a New EIN
2
U.S. Small Business Administration. Register Your Business
3
U.S. Small Business Administration. Open a Business Bank Account
4
Internal Revenue Service. Single Member Limited Liability Companies
5
United States Patent and Trademark Office. How Trademarks and Trade Names Differ
6
Office of the Law Revision Counsel. 15 U.S. Code 1125 – False Designations of Origin, False Descriptions, and Dilution Forbidden