What Is a DBA (Doing Business As)?

A DBA, short for "doing business as," is a registered trade name that lets you run your business under a name different from your own legal name. It is sometimes called a "fictitious business name" or "assumed name." A DBA is purely a name registration; it does not create a separate legal entity, and it does not change how your business is taxed or protected.

What is a DBA, in plain terms?

When you start a business without forming anything, the law treats the business's legal name as your personal name. So if Maria Lopez starts baking cakes, her official business name is "Maria Lopez." A DBA lets Maria register and operate as "Sweet Layers Bakery" instead. The DBA is just an official record saying, "This name belongs to this person or company." It is one of the simplest and cheapest filings a new owner will encounter, which is why it often shows up early when you register your business.

Businesses use DBAs for everyday reasons: a friendlier brand name, a name that describes what they do, or a way to open a business bank account under the brand rather than a personal name. Many banks will ask to see your DBA registration before they will open an account in your trade name.

What a DBA does and does not do

This is where first-time owners get tripped up, so it is worth being precise. A DBA only registers a name. That is the whole job.

Here is what a DBA does:

Lets you legally operate and advertise under a name that is not your legal name.
Allows you to open a bank account, accept checks, and issue invoices under that name.
Puts your trade name on public record, so customers and the state can see who is behind it.

Here is what a DBA does not do:

It does not create a legal entity. A DBA is not a company. If you are a sole proprietor with a DBA, you are still a sole proprietor.
It does not give you liability protection. Your personal assets, like your savings or your car, are still exposed to business debts and lawsuits. For that, you would look at what an LLC is.
It usually does not give you exclusive rights to the name. A DBA registration is not a trademark. Someone in another county or state may be able to use the same name, and registering a DBA does not stop them.
It does not change your taxes. You report income the same way you did before.

Tip: Before you fall in love with a name, do a quick search of your state's business registry and a basic trademark lookup. A DBA does not protect the name, so it is worth knowing early if someone else is already using it.

Who needs a DBA?

You do not always need one, but a DBA makes sense in a few common situations.

Sole proprietors using a brand name

If you run your business as yourself and want to operate under anything other than your exact legal name, most states require a DBA. "John Smith" needs no filing. "Smith Landscaping" almost always does. This is the most common reason first-time owners file one.

Partnerships operating under a business name

General partnerships work like sole proprietorships here. If two people run "Riverside Consulting" without forming an entity, that trade name typically needs to be registered as a DBA.

An LLC or corporation running a second brand

DBAs are not just for tiny businesses. Say you formed "Coastal Ventures LLC" but want to launch a separate product line called "Salt & Sail." Rather than creating a whole new company, the LLC can file a DBA for "Salt & Sail" and operate both brands under one entity. If you are weighing whether to form an entity at all versus just filing a name, our guide on DBA vs LLC walks through the trade-offs.

How do you file a DBA, and what does it cost?

Filing a DBA is usually one of the easier tasks on a launch checklist, but the exact steps depend on where you are. There is no single national process.

Find out where to file. Depending on your state, DBAs are filed at the state, county, or city level. Some states handle it through the Secretary of State; many others have you file with the county clerk where your business is located.
Check name availability. Search the relevant registry to make sure the name is not already taken in your jurisdiction.
Complete the form. You will list your legal name (or your entity's name), the trade name you want to use, and your business address.
Pay the filing fee. Fees are typically modest, often in the range of $10 to $100, though it varies by location.
Publish, if required. A handful of states, such as California and New York, require you to publish a notice of your DBA in a local newspaper for a set period. This adds a little time and cost.

DBAs are not always permanent. Many jurisdictions require you to renew every few years, so note the expiration date when you file.

This is general information, not legal advice. Rules vary by state and county, so confirm the details for your location.

Frequently asked questions

Is a DBA the same as an LLC?

No. A DBA is just a registered name, while an LLC is a legal business entity that separates your personal assets from the business. You can have one, both, or neither. An LLC can even file a DBA to run under an additional name.

Does a DBA protect my personal assets?

No. A DBA offers zero liability protection. If your business is sued or takes on debt, your personal assets are still at risk unless you have formed a protective entity like an LLC or corporation.

How much does a DBA cost?

In most places, filing a DBA costs somewhere between $10 and $100. If your state requires newspaper publication, expect a bit more. Renewal fees may apply every few years.

Figuring out whether you even need a DBA, and where to file it, is exactly the kind of step that is easy to miss when you are starting out. Scafflow builds you a personalized, ordered launch checklist so filings like this land in the right sequence, and it is free to start.

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