A DBA — "doing business as" — is a trade name: the name you operate under instead of your legal name. Whether it's "Jane Smith's Cleaning Co." behind a sole proprietorship, or "Acme Logistics, LLC" running its brand "RapidShip," a DBA is how a business tells the world what it's called without changing what it legally is.
What a DBA actually is
A DBA is not a separate business entity. It's a registration that lets an existing legal name (or a person) operate under a different name. That distinction shapes everything else:
- The entity stays the same — your LLC, corporation, or sole proprietorship doesn't change.
- The DBA has no legal identity — contracts, debts, and lawsuits are entered into by the *owner*, not the trade name.
- It's a public record — registering your DBA puts the name-to-owner link on file, so people can find out who they're actually doing business with.
When you need a DBA
Sole proprietors. If you run a business under anything other than your full legal name, most states require you to register it. "Maria's Bakery" run by Maria Garcia needs a DBA — "Maria Garcia" running as herself doesn't.
LLCs and corporations. A registered company may still want a DBA when:
- You operate a brand different from the legal name (e.g., "Blue Owl Consulting, LLC" running "Blue Owl Coffee").
- You run multiple lines of business and want separate brand names under one entity.
- Your bank requires it — financial institutions typically won't open a business account under a name that doesn't match the registration paperwork.
DBA vs. your LLC name
| LLC name | DBA | |
|---|---|---|
| Creates a legal entity | Yes | No |
| Filed with | Secretary of State (formation) | State or county (registration) |
| Protects the name statewide | Yes (within limits) | Registration only |
| Needed to open accounts | Yes | Often required to match your brand |
| Separate taxes | No — pass-through | Never separate |
The key gap: an LLC name gets registered and, in some states, protected as part of the entity's formation. A DBA is generally not a substitute for trademark protection or for a unique LLC name — two businesses in different states can register the same DBA.
How to register
Registration rules vary by state — some states file DBAs at the state level (Secretary of State), others at the county level, and some require both:
- Search for conflicts — check the registry for the name you want; many states reject names that are already in use by another business.
- File the application — the fictitious business name statement, usually with a filing fee.
- Publish notice (in some states/counties) — a legal notice in a local newspaper, for a set number of weeks.
- Renew — DBAs are registrations, not permanent rights. Most expire in 1–5 years.
Filing fees are typically $10–$100, plus any publication costs. This is an inexpensive, self-serve registration — you should never pay hundreds for a DBA.
What a DBA does NOT do
- No asset protection. A DBA name doesn't shield your personal assets — that's what the entity (the LLC or corporation) is for. If you operate a sole proprietorship under a DBA, you're still personally liable for everything.
- No trademark rights. Registering a DBA in one state doesn't give you a federal trademark or exclusive nationwide use.
- No new EIN. A DBA doesn't get its own EIN. Your entity's EIN covers the DBA. (A *sole proprietor* running a DBA typically uses their personal SSN/ITIN or obtains a single EIN for the business — not one per trade name.)
Common questions
I have an LLC. Do I need a DBA for my website brand? If the brand is different from your LLC's legal name and you want banks, contracts, and checks to use it, yes — most states require it.
Can I have multiple DBAs? Yes — one entity can register several trade names, each with its own registration and renewal.
Does a DBA protect my name from competitors? Very limited. It stops someone from registering the *same* DBA in the same registry, but it's not trademark protection. For real brand protection, look at trademark registration.
I'm a sole proprietor. Do I even need a DBA? If you operate under your legal name, no. Under any other name, most states require registration — and banks usually ask for it before opening an account.
The bottom line
A DBA is a name registration, not a structure. Use it when your brand differs from your legal name, keep the entity (or sole-prop) records behind it clean, and renew it on schedule. The name is a marketing asset — but the legal identity behind it is still you or your entity.