How to File a DBA (Fictitious Business Name)

A DBA — short for "doing business as" — is a registered name that lets you run your business under something other than your legal name. Sole proprietors, partnerships, LLCs, and corporations can all file one. The process varies by state, but it typically takes a few steps and a modest filing fee.

A DBA — "doing business as" — is a registered trade name that lets a business operate publicly under a name other than its legal name. It's also called a fictitious business name, assumed name, or trade name depending on the state. Filing a DBA doesn't create a new legal entity. It simply registers the name so customers, banks, and government agencies know who is behind it.

For example, if your legal name is Maria Gonzalez and you want to run a bakery called "Sunrise Sweets," you'd file a DBA for that name. Without it, you'd have to do business — and accept payments — as Maria Gonzalez.

Any business that wants to operate under a name different from its legal name needs a DBA. That covers sole proprietors, general partnerships, LLCs, corporations, and limited partnerships. The federal government doesn't require DBA registration — it's handled at the state or county level — but most states do require it if you're using a name other than your own.

Sole proprietors and general partnerships are the most common filers. Because they didn't file formation paperwork with the state, their legal name is their default business name. An LLC or corporation might also file a DBA if it wants to run a second brand or product line under a different name without forming a separate entity.

A DBA gives you flexibility in how your business shows up to the world. Most people file one for a practical reason — they want a real business name on their invoices, signage, and bank account instead of their personal name. But there are a few other situations where a DBA makes sense.

• Privacy: Without a DBA, a sole proprietor's legal name is the business name. A DBA keeps your personal name off storefronts, websites, and checks.
• Multiple brands: If your LLC runs more than 1 product line or service, a DBA lets each one operate under its own name without forming a separate entity.
• Location-specific branding: A business with multiple locations can use a unique name at each one while keeping everything under the same legal entity.
• Rebranding: If your LLC name no longer fits your brand, a DBA lets you use a new name publicly without going through the process of formally changing your registered name.

Filing a DBA is a state-level process with no single federal form or agency. The steps below reflect the most common path, but your state or county may have specific requirements. Check your state's business portal or Secretary of State website to confirm what applies to you.

Step 1: Find the right filing office

DBA registration is handled at the state or county level — there's no uniform federal process. In most states, you file with the Secretary of State. In others, registration happens at the county clerk's office, which means you may need to file in every county where you do business. The SBA's business portal is a good starting point to find the right office for your state.

Step 2: Search name availability

Before filing, check whether the name you want is already in use. Most states have a searchable business name database through the Secretary of State's website. A DBA doesn't give you exclusive rights to the name — but filing a name that's already registered can get your application rejected. It's worth checking before you pay the fee.

Step 3: Complete the application

Download or access the DBA application form from your state or county filing office. Most forms ask for your legal name, the DBA name you want to use, your business address, and your business structure. Sole proprietors typically need to provide proof of identity — a driver's license or passport. LLCs and corporations may need to include a certificate of good standing or their articles of organization.

Step 4: File and pay the fee

Many states let you file online. Some still require mailing or faxing a paper form. Filing fees vary by state and entity type — they're generally modest, but the exact amount depends on where you're filing. Some states also require you to publish a notice of your DBA in a local newspaper after filing, so check whether that applies in your state.

Step 5: Renew when required

DBA registrations don't last forever. Most states require renewal every few years — commonly every 5 years, though the schedule varies. Missing a renewal can mean your DBA lapses and you'd need to re-register. Mark the expiration date when you file so it doesn't catch you off guard.

A DBA registers a name — it doesn't protect it. That's the part people most often miss. Anyone else in your state could file the same name as a DBA, and you'd have limited recourse. A DBA also doesn't give you liability protection. If you're a sole proprietor operating under a DBA and your business gets sued, your personal finances are fair game.

If protecting your name matters, you have 2 stronger options. Forming an LLC or corporation gives your business name legal standing at the state level. Registering a federal trademark gives you nationwide protection. A DBA is a naming tool, not a legal shield — and knowing that distinction up front saves a lot of confusion later.