A DBA: Doing Business As: is how your LLC officially operates under a name other than its registered legal name. Most LLC owners do not realize they need one until a bank asks for it, a client wants to pay a name that does not match their records, or they launch a second brand. This guide covers everything about DBAs: what they are, when you need one, how to file, and what they actually cost.
Quick Answer
A DBA (Doing Business As) is a registration that lets your LLC legally operate under a business name that is different from its official registered name. It does not create a new legal entity or change your LLC's structure. It simply registers the name with your state or county so you can use it for banking, contracts, and client-facing purposes. Filing costs typically range from $10 to $100 depending on your state.
IN THIS GUIDE
- What is a DBA?
- When does your LLC need a DBA?
- DBA vs LLC: key differences
- How to file a DBA for your LLC (step by step)
- How much does a DBA cost?
- How long does a DBA last?
- DBA filing requirements by state
- Frequently asked questions
What Is a DBA?
DBA stands for "Doing Business As." It is also called a trade name, fictitious business name, or assumed name depending on the state. A DBA is a registration that gives your LLC the legal right to operate under a name other than its official legal name.
When you form an LLC, your legal name is the one you registered with your state's Secretary of State: for example, "Johnson Enterprises LLC." If you want to operate under the name "Johnson Plumbing" or "Johnson Home Repairs," you need a DBA for each of those names. Without a DBA, contracts, bank accounts, and payments made to those names may not be legally tied to your LLC.
A DBA does not create a new legal entity. It does not change your LLC's structure, tax treatment, or liability protection. It is simply a name registration: an official record that "Johnson Plumbing" is the same business as "Johnson Enterprises LLC."
When Does Your LLC Need a DBA?
Your brand name is different from your LLC name
This is the most common reason. If your LLC is registered as "Smith Digital Solutions LLC" but you market as "Smith Creative," you need a DBA for "Smith Creative" to legally use that name for invoices, bank accounts, and contracts. See our full guide on whether your LLC name has to match your business name.
You want to open a bank account under your brand name
Banks require either your LLC's legal name or a registered DBA to open a business account. If a client pays "Smith Creative" and your bank account is under "Smith Digital Solutions LLC," you may have trouble depositing those payments. A DBA registration makes the connection official and solves this problem. See our guide on opening a business bank account for your LLC.
You run multiple brands from one LLC
One LLC can have multiple DBAs, each covering a different brand or revenue stream. A plumber who also does HVAC work might have "Johnson Plumbing" and "Johnson HVAC Services" as separate DBAs under one LLC. This avoids the cost of forming multiple separate LLCs while keeping brands distinct.
Your state requires it for sole proprietors using a business name
Sole proprietors operating under any name other than their personal legal name typically must file a DBA. If you are a sole proprietor named Jane Smith doing business as "Jane's Bakery," most states require you to register "Jane's Bakery" as a DBA. This does not apply to LLCs (who use the LLC name by default), but is relevant if you are transitioning from a sole proprietorship.
You want to test a new brand without forming a new LLC
A DBA is a low-cost way to launch a new product line or service brand without creating and maintaining a separate legal entity. If the new brand takes off, you can always form a dedicated LLC later. If it does not, you have not invested in a full entity formation.
DBA vs LLC: Key Differences
These two are frequently confused. Here is the clear distinction.
- An LLC is a legal entity. It provides liability protection, has its own EIN, can own property, sign contracts, and be sued independently. Forming an LLC requires filing with your state's Secretary of State.
- A DBA is a name registration only. It gives you the right to use a business name but creates no new legal entity, no liability protection, no separate tax treatment, and no separate EIN. The DBA operates under the LLC that registered it.
- A DBA does not protect the name federally. Registering a DBA does not give you trademark rights. Someone in another state could legally use the same name. If you want nationwide name protection, you need a federal trademark. Brendat's trademark service handles this separately.
Common misconception
A DBA does not add liability protection. If you operate under a DBA as a sole proprietor, your personal assets are still fully exposed. Only forming an LLC provides liability protection. A DBA registered under an LLC inherits the LLC's protection, but the DBA itself adds nothing.
How to File a DBA for Your LLC (Step by Step)
1. Check name availability
Before filing, confirm the DBA name is not already registered in your state or county. Most states have a business name search tool on the Secretary of State's website. Also run a quick trademark search to make sure you are not stepping on an existing federal trademark.
2. Determine where to file
DBA filing requirements vary significantly by state. Some states require filing at the state level with the Secretary of State. Others require filing at the county or city level with the county clerk. A few require both. Brendat's DBA filing service handles this in all 50 states so you file in the right place the first time.
3. Complete the DBA registration form
The form typically asks for your LLC's legal name and state of formation, the DBA name you want to register, your LLC's principal business address, and the name and signature of an authorized LLC member or manager. Some states also ask for your LLC's EIN.
4. Pay the filing fee
Filing fees range from $10 to $100 depending on your state and county. Some states have flat fees; others charge per county if you operate in multiple counties. Brendat's DBA service includes preparation and filing for a flat fee: no surprise add-ons.
5. Publish if required (some states only)
A handful of states require DBA registrants to publish a notice in a local newspaper for a set period before or after filing. California and some New York counties are the most commonly cited examples. Brendat flags publication requirements as part of the DBA filing process in states where this applies.
6. Start using your DBA name
Once registered, you can open a bank account under the DBA name, update client-facing materials, invoices, and signage, and sign contracts under the DBA name. Keep your registration certificate on file. Banks typically ask to see it when opening an account under a DBA.
File Your DBA with Brendat
Brendat handles DBA registration in all 50 states. Flat fee, correct filing location, and we handle publication requirements where applicable.
All 50 states. Flat fee. Takes less than 10 minutes to start.
How Much Does a DBA Cost?
DBA filing fees vary by state and sometimes by county. Here is a general range:
- Most states: $10 to $50 state or county filing fee
- California: $26 per county, filed with county clerk
- Texas: Approximately $25, filed with county clerk
- Florida: $50, filed with the Division of Corporations
- New York: $25 county fee plus publication costs if required
- Illinois: $150 for assumed name registration at state level
If your state requires publication in a local newspaper, that adds to the cost. New York City publication costs can reach several hundred dollars. Brendat's DBA service includes the state or county filing fee transparently at checkout.
How Long Does a DBA Last?
DBA registrations are not permanent in most states. They expire and must be renewed. Common renewal periods:
- California: 5 years
- Texas: 10 years
- Florida: Does not expire (but update required if information changes)
- New York: Varies by county, typically 5 years
- Illinois: 5 years
Set a reminder before your DBA expires. Operating under an expired DBA can create banking complications and may affect your ability to enforce contracts made under that name. Brendat tracks renewal dates as part of the DBA filing service.
DBA Filing Requirements by State
Where you file your DBA depends on your state's rules. Here is a quick overview of the most common patterns:
County clerk. Publication required in most counties. 5-year term.
County clerk. No publication required. 10-year term.
State Division of Corporations. No publication. Does not expire.
County clerk. Publication required. Varies by county.
Superior court clerk in county of business. No publication. Check local requirements.
Secretary of State (state level). No publication. 5-year term.
Brendat Tip
DBA requirements are one of the more fragmented areas of business registration: rules vary not just by state but sometimes by county. Filing in the wrong location means your DBA may not be valid where you operate. Brendat's DBA service ensures you file in the correct jurisdiction the first time, with all required forms and any publication coordination handled for you.
Frequently Asked Questions
What does DBA mean?
DBA stands for "Doing Business As." It is a registration that lets a business legally operate under a name other than its official registered name. Other terms for the same thing include trade name, fictitious business name, and assumed name. The terminology varies by state but refers to the same registration process.
Do I need a DBA for my LLC?
Only if you want to operate under a name different from your LLC's official legal name. If your LLC is "Smith Consulting LLC" and you do business as "Smith Consulting," no DBA is needed. If you want to operate as "Smith Creative" or launch a second brand, you need a DBA for each name you want to use.
Does a DBA protect my business name?
Only at the state or county level where you file. A DBA registration prevents another business in that jurisdiction from registering the exact same name. It does not provide federal protection, so someone in another state could legally use the same name. For nationwide protection, you need a federal trademark registration.
Can I open a bank account with a DBA?
Yes. With a registered DBA, you can open a business bank account under the DBA name. Most banks require your LLC's EIN, Articles of Organization, operating agreement, and the DBA registration certificate. The account operates under the DBA name while the underlying legal entity remains your LLC.
Can one LLC have multiple DBAs?
Yes. A single LLC can register multiple DBAs, each covering a different brand or business name. Each DBA requires its own separate filing and filing fee. There is no limit on the number of DBAs an LLC can hold, though each must be registered in the correct jurisdiction where it will be used.
How long does it take to get a DBA?
Processing time varies by state. Most state-level DBA filings are processed within 1 to 5 business days. County-level filings can sometimes be processed same-day in person or within 1 to 3 business days if filed online or by mail. States with publication requirements add several weeks to the total process.
Is a DBA the same as an LLC?
No. A DBA is a name registration only. It creates no legal entity, no liability protection, and no separate tax treatment. An LLC is a full legal entity that provides personal liability protection, has its own EIN, and is taxed separately from its owners. A DBA registered under an LLC operates as part of that LLC, not as a new entity.
Further Reading
- Does Your LLC Name Have to Match Your Business Name?
- How to Open a Business Bank Account for Your LLC
- What Is a Single Member LLC? Complete Guide
- Form Your LLC with Brendat: Starting at $0
About the Author
Brendat Editorial publishes practical guidance for founders navigating business formation, compliance, and growth in the U.S.