What Is a DBA and How Do I File for One?

A DBA ("doing business as")—called a fictitious name in Florida—is a registered trade name that lets a business operate under a name different from its legal name. In Florida, you register it with the Division of Corporations, publish notice in a local newspaper, and renew it every five years. Importantly, a DBA is not a separate legal entity and gives you no liability protection on its own.

A DBA is one of the most misunderstood tools in business. It's simple and inexpensive, but people often assume it does more than it does. This guide explains what a DBA is, when you need one, how to file in Florida, and how it differs from forming an LLC or registering a trademark.

What a DBA Actually Is

A DBA is simply a public name your business uses that isn't its legal name. Two common situations:

A sole proprietor or partnership wants to operate under a brand name instead of the owner's personal name.
An LLC or corporation wants to run a product line, location, or brand under a name different from the one on its formation documents.

In all of these, the underlying legal owner stays the same—the DBA is just the name the public sees. Florida calls this a fictitious name, governed by the Fictitious Name Act (§865.09).

Why Businesses Use a DBA

A DBA solves several everyday problems:

Branding. Operate under a memorable trade name instead of a personal or formal legal name.
Multiple brands under one entity. Run several lines or locations without forming a new company for each.
Banking. Most banks require a registered fictitious name before they'll open an account or accept checks in that name.
Compliance. Florida generally requires you to register a name you do business under if it differs from your legal name.

A DBA Is Not a Business Entity

This is the most important point. A DBA is a name, not a structure. It does not:

Create a separate legal entity.
Provide limited liability—a sole proprietor with a DBA is still personally liable.
Offer any tax advantages.
Give you exclusive nationwide rights to the name.

If your goal is to protect your personal assets, a DBA won't do it—you need an LLC or corporation. Compare the options in corporations vs. LLCs and our overview of choosing the right legal structure. Many businesses do both: form an LLC for protection, then register a DBA for branding.

How to File a Fictitious Name in Florida

The process is straightforward, but each step matters:

Choose and check the name. Search the state's records to confirm the name isn't already in use and doesn't mislead the public.
Publish notice. Florida requires you to advertise your intent to register the fictitious name at least once in a newspaper in the county where your principal place of business is located. Keep proof of publication.
Register with the Division of Corporations. File the fictitious name registration (online through Sunbiz or by mail) with the owner's information, the county, and the FEIN or SSN.
Pay the filing fee. A modest state fee applies (around $50).
Renew on time. A Florida fictitious name registration is valid for five years and expires on December 31; you renew during the renewal window in the expiration year.

Because the publication and registration steps have specific requirements, it's worth confirming you've met them—an incomplete filing can leave you unable to bank or contract under the name.

DBA vs. LLC vs. Trademark

These three tools are often confused, but they do very different things:

	What it is	What it gives you
DBA / fictitious name	A registered trade name	The right to operate under that name; no liability or exclusivity
LLC / corporation	A legal entity	Limited liability and a formal structure
Trademark	Brand protection	Exclusive rights to use the mark for your goods/services

A DBA lets you use a name; a trademark lets you own it. If branding matters, pair your DBA with trademark protection—see our guide to registering and protecting your brand. Registering a fictitious name does not stop a competitor from using the same name; only a trademark does that.

When You Need a DBA—and When You Don't

A DBA isn't always required. You generally need one when:

You're a sole proprietor or partnership operating under anything other than your personal name(s).
Your LLC or corporation wants to run a brand, product line, or location under a name different from its registered legal name.
A bank, vendor, or platform asks for proof of the trade name before doing business.

You generally don't need a separate DBA when you simply operate under your entity's exact legal name—that name is already on record from your formation filing. The test is whether the name the public sees matches the name on your legal paperwork.

DBAs, Taxes, and Banking

A DBA changes how your business looks, not how it's taxed. Income earned under a fictitious name is still reported under the underlying owner—the sole proprietor's return or the entity's filings. There's no separate tax treatment and no new EIN required just because you added a DBA.

Where a DBA does have real practical value is banking and contracting. Banks typically won't open an account or deposit checks made out to a trade name until you show a registered fictitious name. Likewise, signing contracts under a properly registered DBA keeps your paperwork consistent and avoids questions about who the real party is. Getting the registration on file early prevents these everyday operations from stalling.

Common DBA Mistakes

A few errors trip up business owners:

Assuming a DBA protects you. It doesn't—only an entity provides liability protection.
Skipping the newspaper publication required in Florida.
Thinking a DBA gives name exclusivity. Two businesses can register similar fictitious names; protection comes from trademarks, not DBAs.
Forgetting to renew, which can invalidate the registration and complicate banking and contracts.
Using a DBA where you really need an LLC, leaving personal assets exposed.

Frequently Asked Questions

Does a DBA protect my personal assets?

No. A DBA is only a name—it doesn't create a separate entity or shield you from liability. For that protection, you need to form an LLC or corporation. Many owners do both: an entity for liability, a DBA for branding.

Do I have to publish my DBA in a newspaper in Florida?

Yes. Florida's Fictitious Name Act requires you to advertise your intent to register the name at least once in a newspaper in the county of your principal place of business before (or in connection with) registering. Keep proof of publication.

How long does a Florida fictitious name last?

Five years—it expires on December 31 of the fifth year and must be renewed during the renewal window to stay active. Mark the deadline, because lapses can disrupt banking and contracts. Talk to an attorney if you're unsure whether you need a DBA, an entity, or both.

A DBA is a useful, low-cost way to do business under a name you choose—but it's only a name. It won't protect your assets or give you exclusive rights, so pair it with the right entity for liability protection and a trademark for brand ownership. File it correctly in Florida (search, publish, register, renew), and your trade name will be properly on record—ready to bank, contract, and build a brand around.