DBA stands for “doing business as.” It is a registered name that a person or company uses instead of its legal name, such as “Smith Consulting LLC d/b/a BrightPath.” A DBA is also called a trade name, assumed name or fictitious name. It does not create a new legal entity or protect your personal assets, and the filing rules depend on your state and, often, your county.
This guide explains the DBA meaning in plain terms, compares a DBA with an LLC, shows what filing costs in 10 states, and walks through the filing steps, taxes and limits so you can register the name correctly the first time.
What does DBA mean?
A DBA is an official record that a business operates under a name other than its legal one. The U.S. Small Business Administration describes a DBA as “also known as a trade name, fictitious name, or assumed name” and notes that you might need to register it with your state, county or city. The DBA is only a name attached to an existing person or company.
For example, a sole proprietor named Maria Lopez could sell cakes as “Lopez Bakes,” or an existing LLC could open a second brand without forming a new company. In both cases the legal owner stays the same, and the registration does not create a separate business entity, which is the main difference between a DBA and an LLC or corporation.
How to write a DBA name correctly
Write the legal name first, followed by “DBA” or “d/b/a” and the trade name. California’s court self-help guide uses the format “Chris Cole, individually, and DBA Ace Copy & Shipping”, and IRS Form SS-4 puts the legal name on line 1 and the “doing business as” name on line 2. A company would therefore write “Smith Consulting LLC d/b/a BrightPath” on contracts and invoices.
Why businesses use a DBA
Owners usually file a DBA for four practical reasons:
• Branding: a trade name is easier to market than a personal name.
• Banking: many banks ask for a filed DBA certificate before opening an account or depositing checks in a brand name.
• Multiple brands: one LLC can run several product lines under different DBAs.
• Compliance: many states and counties require registration once you trade under a name that is not your legal name.
International companies meet the same rules when they expand into the United States. A foreign entity that transacts business in Texas must register with the Texas Secretary of State, and if it qualifies under an assumed name it must do business under that name. New York allows both domestic and foreign corporations to conduct business under an assumed name by filing a certificate with the Department of State.
DBA vs LLC: which one do you need?
Choose an LLC if you want a separate legal entity that can help shield personal assets from business debts. Choose a DBA if you only need a brand name and accept that the owner remains personally responsible. Georgia’s official guidance says a DBA “doesn’t create a separate legal business entity or provide liability protection.”
| Feature | DBA | LLC |
| Separate legal entity | No | Yes |
| Personal liability protection | No | Generally yes, subject to state law and how the LLC is run |
| Typical filing cost | $5 to $172 plus any newspaper notice (see state table) | State formation fee, plus annual or biennial reports in many states |
| How income is taxed | On the owner’s return (Schedule C for a sole proprietor) | Pass-through by default; can elect corporate tax treatment |
| Needs its own EIN | No, the IRS does not require a new EIN for a name change | Depends on members, employees and tax election |
| Best for | Sole proprietors and extra brands under an existing company | Owners who want an entity separate from themselves |
The choice is not always one or the other. Many owners form an LLC and then file a DBA for a brand. For a deeper look at structure, see our doing business as vs LLC comparison and our explainer on what an LLC is and how it works.
What comes first, LLC or DBA?
The LLC comes first. The entity must exist before it can register a trade name, because the DBA filing has to match the entity’s exact legal name. New York tells filers to copy the name from the receipt issued “when the entity was formed,” and Florida confirms a fictitious name is not required to form an LLC. A sole proprietor has no entity to form and can file a DBA straight away.
How much does it cost to file a DBA?
Filing a DBA usually costs between $5 and $172, depending on the state and county, before any newspaper publication fees. Washington charges $5 per trade name through its Business Licensing Service (plus the business license application fee), while Gwinnett County, Georgia charges $172 plus a $40 publication fee. Several states also require notarized signatures or a newspaper notice.
| State | Where to file | Fee (example) | How long it lasts | Newspaper notice | Notarized signature |
| California | County clerk (all filers) | 26inLosAngelesCounty,+5 per extra name or owner | 5 years | Weekly for 4 weeks, starting within 45 days | Notarization or ID check (LA County) |
| Texas | County clerk (sole proprietors); Secretary of State (entities) | $23 in Travis County; $25 for SOS Form 503 | Up to 10 years | None stated | County: yes; SOS: no |
| Florida | Division of Corporations (Sunbiz) | $50 | 5 years, ending Dec. 31 | Once, in a county newspaper | Not stated |
| New York | County clerk (sole proprietors); Department of State (entities) | 25county(100 in NYC); $25 DOS | Not stated | None stated | Sole proprietors: yes |
| Illinois | County clerk (sole proprietors); Secretary of State (LLCs) | $10 in DuPage County | Varies by county | Weekly for 3 weeks | DuPage County: yes |
| Pennsylvania | Department of State | $70 | Not stated | 2 newspapers, only if an individual is listed | Not stated |
| Ohio | Secretary of State | $39 (renewal $25) | 5 years | None stated | No |
| Georgia | Superior Court clerk, county of domicile | $172 + $40 publication (Gwinnett County) | No renewal needed | Weekly for 2 weeks | Yes |
| Washington | Department of Revenue, Business Licensing Service | $5 per trade name | Until cancelled | None stated | Not stated |
| Massachusetts | City or town clerk | $65 in Boston | 4 years | Not stated | Boston: yes |
Sources, checked September 2026: LA County fees and filing requirements, Cal. Bus. & Prof. Code 17917 and 17920; Texas SOS name filing FAQs and Travis County Clerk; Florida Sunbiz FAQ; NY Business Express and NY Department of State; 805 ILCS 405 and DuPage County Clerk; Pennsylvania Department of State and its fee schedule; Ohio Rev. Code 111.16 and 1329.04; Georgia.gov and Gwinnett County courts; Washington DOR; City of Boston. County fees differ and change, so confirm with your own filing office.
Two details catch people out. Publication deadlines run from the filing date, and DuPage County, Illinois treats a registration as void if proof of publication is not filed within 50 days, so arrange the notice as soon as you file. New York County also accepts a remotely notarized signature only when the notary is located in New York State, according to the New York County Clerk, which shows why you should check the filing office’s rules before choosing an in-person or online notary.
How do you register a DBA?
To register a DBA, confirm the name is available, find the correct state or county office, complete the form with your exact legal name, sign it before a notary if required, pay the fee, and publish a newspaper notice if your state demands one. Then diary the renewal date so the registration does not lapse.
1. Check the name. Search your state business database and county records for conflicts.
2. Find the right office. Use the table above: county clerk, Secretary of State or a state licensing agency.
3. Complete the form. Use your full legal name or the entity’s exact registered name.
4. Sign before a notary if required. Texas county filings, New York county certificates, Georgia trade names and Boston business certificates all require it.
5. Pay the fee and file.
6. Publish a notice if required, and keep the publisher’s affidavit.
7. Record the renewal date, such as 5 years in California, Florida and Ohio or 4 years in Massachusetts.
DBA filing checklist
Before you file, gather:
• Your legal name, or the entity’s name exactly as it appears on its formation receipt.
• The trade name, spelled exactly as you will use it.
• Your business street address (Boston, for example, does not accept P.O. boxes or virtual addresses).
• Owner names and addresses for every registrant.
• A current government photo ID if the form must be notarized.
• Payment for the filing fee and any publication costs.
Problems to check before you submit
Four mistakes can hold up a filing: a legal name that does not match state records, a missing or incomplete notarization where one is required, a form sent to the wrong office (a Texas LLC, for example, files with the Secretary of State, not the county), and an incorrect fee. Check each one before you file.
Taxes, licenses and limits of a DBA
A DBA changes the name you trade under, not how you are taxed or licensed. Income earned under a DBA is taxed to the owner, you still need any required business licenses, and the registration does not give you exclusive rights to the name in most states. These limits are why many owners pair a DBA with an LLC.
Do you pay taxes on a DBA?
A DBA does not file its own tax return. A sole proprietor reports DBA income on Form 1040 with Schedule C and pays self-employment tax on Schedule SE, while an LLC or corporation reports it on the entity’s return. The IRS says a business name change alone does not require a new EIN. Business expenses incurred under the DBA are the owner’s business expenses. For the tax ID question in detail, see do I need an EIN number for a DBA.
Does a DBA count as a business license?
No. Massachusetts states plainly that its business certificate “is not a business license.” You may still need a city, county, state or professional license, a sales tax permit and zoning approval before you open.
What are the disadvantages of a DBA?
The main disadvantage is the lack of liability protection, which leaves personal assets exposed to business debts and lawsuits. A DBA also does not reserve the name: Washington’s Department of Revenue says registration “does not protect the name from use by others,” and the SBA notes that multiple businesses can use the same DBA in one state. A federal trademark is the stronger tool for protecting a brand. Renewals, publication fees and separate filings in each county or state where you trade also add cost over time.
Have a question about notarizing your DBA form? Email us at [email protected] with your state and county, and we will help you work out what your filing office requires.
Need your DBA filing notarized? If your filing office accepts it, you can get your document notarized online with BlueNotary through a live video session with a commissioned notary.
Frequently asked questions
What is the full meaning of DBA?
In business, DBA stands for “doing business as,” the registered name a person or company uses instead of its legal name. In education, DBA can also mean Doctor of Business Administration, which is a degree and unrelated to business names.
Is a DBA degree equivalent to a PhD?
Both are doctorates, but they serve different purposes. AACSB describes the Doctor of Business Administration as practice-oriented, designed for experienced professionals, while a PhD is research-oriented and usually leads to an academic career.
Can I open a business bank account under my DBA?
Usually yes. Banks commonly ask for the filed DBA certificate, your photo ID and your EIN or Social Security number. Requirements vary by bank and account type, so call ahead and bring a stamped copy of the filing.
Can two businesses have the same DBA?
Sometimes. In most states a DBA registration is a public notice, not an exclusive right, and the SBA notes several businesses can share a DBA in one state. A federal trademark gives stronger protection for a brand name.
Does a DBA form need to be notarized?
It depends on the state and office. Texas county filings, New York county certificates, Georgia trade names and Boston business certificates require a notarized signature, while Ohio filings and Texas Secretary of State filings do not. Check whether your office accepts remote online notarization before you book one.
How long does a DBA last?
It depends on the state. A DBA lasts 5 years in California, Florida and Ohio, 4 years in Massachusetts and up to 10 years in Texas. Georgia trade names do not need renewal, and Washington trade names stay registered until cancelled.
