A DBA, short for “doing business as,” is a registered name that lets a person or business legally operate under a name different from its legal name. It doesn’t create a new business or add liability protection, and most states require you to register one before you use the name. You may also hear a DBA called a fictitious business name, assumed name or trade name, depending on your state.
For example, if Sarah Johnson starts a freelance design business called “North Studio Creative,” she may need to register a DBA because she’s operating under a business name instead of her personal legal name.
Understanding what a DBA means is important for entrepreneurs, freelancers, ecommerce sellers and LLC owners looking to build a brand without creating a separate business entity.
In this guide, learn what a DBA is, who needs one, how to file one in your state, what it costs, and how it compares to an LLC and a trademark.
Quick facts about DBAs
| Item | Details |
|---|---|
| What it is | A registered business name, not a business entity |
| Other names | Fictitious business name, assumed name, trade name |
| Who uses one | Sole proprietors, partnerships, LLCs and corporations |
| Where you file | The Secretary of State, a county or town clerk, or another state agency, depending on the state |
| State filing fee | About $5 to $150; county filings and newspaper publication can cost more |
| Liability protection | None |
| Name protection | No exclusive rights; a federal trademark protects a brand name |
| Tax ID | Uses the owner’s or the LLC’s existing EIN |
| Renewal | Every 2 to 10 years in most states; some never expire |
What does a DBA mean?
DBA stands for “doing business as.” It’s a legal registration that allows a person or company to conduct business under a different name than their legal name or registered entity name.
A DBA does not create a separate business structure. Instead, it simply registers an alternate business name for public use.
Here are a few examples.
- A sole proprietor named Alex Carter could register a DBA to operate as “Lakeview Marketing”
- An LLC called Bright Horizon LLC could launch a new brand called “Summit Social” using a DBA
- A partnership may file a DBA to market its services under a simpler or more recognizable name
In many states, businesses operating under a name different from their legal name are required to register a DBA.
What is a DBA used for?
Businesses use DBAs for several practical and branding-related reasons.
Flexible branding
A DBA allows businesses to create a brand identity that’s easier to market and remember. For instance, “Bright Horizon LLC” may not describe what a company does, but “Summit Social Media” immediately communicates its services to potential customers.
A new business or brand
Many business owners use DBAs to test new services, product lines, or business ideas without forming a separate LLC or corporation.
An entrepreneur who is starting an ecommerce store and already owns one LLC, for example, might launch multiple online stores under different DBAs.
Privacy for sole proprietors
Sole proprietors often use DBAs so they don’t have to publicly operate under their personal legal name.
Instead of advertising a business as “Emily Rodriguez,” a photographer could operate under “Golden Hour Photography.”
Bank accounts and payments
Many banks require sole proprietors and partnerships to register a DBA before opening a business bank account under a business name.
Who needs a DBA?
Not every business needs a DBA. In general, you may need one if you operate under a business name that’s different from your legal or registered business name.
DBAs are commonly used by sole proprietors, partnerships, LLCs, and corporations that want more flexibility in how they present their business to customers.
Sole proprietors
Sole proprietors commonly use DBAs because, by default, their business legally operates under their personal name unless they register another one.
For example, if John Smith starts a landscaping company called “Evergreen Lawn Care,” he would typically need a DBA to legally operate under that business name instead of “John Smith.”
Many freelancers, consultants, and small business owners use DBAs to create a more professional brand identity without forming a separate business entity.
A DBA can also help sole proprietors in several ways.
- market their business more effectively
- open a business bank account under a business name
- separate their personal identity from their brand identity
- establish credibility with customers and vendors
However, sole proprietors should remember that a DBA does not provide liability protection. Since a sole proprietorship and its owner are legally the same entity, personal assets are not separated from business debts or obligations. If you want that protection, a single-member LLC can still operate under a DBA.
Partnerships
General partnerships may also need a DBA if they conduct business under a name different from the legal names of the partners.
For example, if two business partners named Lisa Chen and Michael Rivera start a marketing agency called “Brightline Creative Group,” they may need to register a DBA to legally operate under that business name.
Partnerships often use DBAs to create a more recognizable and marketable brand while maintaining their existing business structure.
Like sole proprietorships, general partnerships do not receive liability protection through a DBA alone.
LLCs and corporations
LLCs and corporations can also use DBAs to operate multiple businesses or brands without creating separate legal entities.
For example, an LLC called “North Peak Ventures LLC” could run each of these under its own DBA.
- a consulting brand
- an ecommerce store
- a digital marketing agency
This approach allows businesses to expand into different markets or launch new products while keeping operations under one LLC or corporation. See how running multiple businesses under one LLC works.
Unlike sole proprietorships and partnerships, when you form an LLC or corporation, it already has liability protection through its business structure. In these cases, the DBA works mainly as a branding and operational tool rather than a legal safeguard.
Where LLCs and sole proprietors file
In many states, the filing office depends on who owns the name. LLCs and corporations usually file with the Secretary of State, while sole proprietors and partnerships often file with the county or town clerk where they do business. Illinois, Indiana, Iowa, Michigan, New Jersey, New York and Texas all split filings this way, so check the right office for your business type in the state table below.
Is a DBA required?
Most states require you to register a DBA before you use a name that’s different from your legal name. A few make registration optional, including Alabama, Mississippi, Wisconsin and Wyoming, and Kansas, New Mexico and South Carolina have no state DBA registration at all. Even where state registration is optional, a city or county may have its own rules, and many banks still ask for proof of a registered name.
Using an unregistered name in a state that requires registration can lead to fines, and in some states you can’t bring a lawsuit under that name until you register it.
Benefits of a DBA
A DBA can help businesses create a more professional brand presence without changing their existing business structure. For sole proprietors, partnerships, LLCs, and corporations, a DBA offers flexibility in how a business operates publicly and markets itself to customers.
Some of the biggest benefits of a DBA are listed below.
- Building a recognizable brand name instead of operating under a personal or legal business name
- Creating separate customer-facing brands under one LLC or corporation
- Opening a business bank account under a business name
- Adding credibility and professionalism to marketing materials, invoices, and websites
- Maintaining more personal privacy for sole proprietors
- Testing new business ideas or services without forming another LLC
- Expanding into new markets using different brand identities
- Keeping costs lower than creating multiple business entities
Limitations of a DBA
- No liability protection: a DBA doesn’t add liability protection. Sole proprietors and partners stay personally liable for business debts, and an LLC’s protection comes from the LLC, not the DBA.
- No exclusive rights: registering a DBA doesn’t stop someone else from using the same or a similar name.
- Registration rules: failing to register a DBA when operating under a different name can result in penalties.
DBA vs. LLC: what’s the difference?
One of the most common questions entrepreneurs ask is about DBA vs LLC.
Although they’re often discussed together, a DBA and an LLC serve completely different purposes.
| DBA | LLC |
|---|---|
| Registers a business name | Creates a legal business entity |
| Does not provide liability protection | Protects personal assets from business liabilities |
| Cannot exist independently from a legal entity or owner | Exists as its own legal structure |
| Used mainly for branding | Used for legal and financial protection |
| Does not affect taxes | Can choose different tax classifications |
A DBA is simply a registered business name. An LLC, or limited liability company, is a formal legal structure.
Many businesses use both together. For example, someone may form an LLC for liability protection and then register a DBA for branding. The full DBA vs. LLC comparison covers costs, taxes and when each makes sense.
DBA vs. trademark
A DBA and trademark are also different.
A DBA allows you to legally operate under a business name, while a trademark helps protect that name from being used by competitors (see how to trademark a name). The USPTO reported more than 3.7 million active trademark registrations at the end of fiscal year 2026 (September 2026), which shows how many businesses use trademarks to protect their brand names.
Registering a DBA usually does not give you exclusive rights to the name nationwide. The guide to DBA vs. trademark explains when you might want both.
How to file a DBA
The process for registering a DBA varies by state, but it generally includes these steps.
- Choose a business name that fits your brand and follows your state’s naming rules (for example, a sole proprietor’s DBA usually can’t include “LLC” or “Inc.”).
- Check whether the name is already in use by performing a business entity search, and search the USPTO trademark database too.
- Find the right filing office for your state and business type: the Secretary of State, a county or town clerk, or another agency.
- File the DBA form, which usually asks for the DBA name, your legal name or LLC name, your business address and the type of business. Some states require filing within a set number of days of first using the name.
- Pay the filing fee, and publish a notice in a newspaper if your state requires it (California, Florida, Georgia, Minnesota, Nebraska and Pennsylvania are examples).
- Update your bank account, invoices, website and licenses with the new name, and set a reminder to renew the DBA if your state requires it.
DBA filing requirements by state
DBA registration rules vary by state. Depending on where you live, you may need to file with your Secretary of State, county clerk, or another local agency. Some states also require newspaper publication or periodic renewals. State filing fees range from about $5 to $150, and a few states, such as Kansas, New Mexico and South Carolina, have no state DBA registration at all. See the full breakdown of DBA costs by state.
Use the chart below to find your state’s DBA filing requirements and registration guide. Where LLCs and sole proprietors file in different places, both are shown.
| State | Where to file and key rules | State fee |
|---|---|---|
| Alabama | Optional registration with the Secretary of State, valid 5 years | $30 mail ($31.20 online) |
| Alaska | Register with the Division of Corporations; renew every 5 years | $25 |
| Arizona | Trade names filed with the Secretary of State, not the ACC; renew every 5 years | $10 |
| Arkansas | LLCs file with the Secretary of State; sole proprietors file with the county clerk | $22.50 online / $25 mail (LLC); no expiry |
| California | Filed with the county clerk; publish 4 weeks; renew every 5 years | Varies by county (LA: $26) |
| Colorado | Filed online only with the Secretary of State | $20 (renewal $5) |
| Connecticut | Required; filed with the town clerk; expires after 5 years | Usually $20 (varies by town) |
| Delaware | Since Feb 2, 2026, statewide with the Division of Revenue; no expiry | $25 |
| District of Columbia | Register with DLCP through BOSS; renew every 2 years | $55 |
| Florida | Register on Sunbiz; advertise once in a county newspaper first; renew every 5 years | $50 |
| Georgia | Clerk of Superior Court in your county; publish twice; no expiry | Varies by county (Gwinnett $172) |
| Hawaii | Register with DCCA Business Registration Division; renew every 5 years | $50 (+$1 archives fee) |
| Idaho | Assumed business name certificate with the Secretary of State; never expires | $25 online / $45 paper |
| Illinois | LLCs file with the Secretary of State; sole proprietors use county clerk and publish | LLC up to $150 (prorated) |
| Indiana | LLCs file with the Secretary of State; sole proprietors with each county recorder | $20 online / $30 paper (LLC) |
| Iowa | LLCs file a fictitious name resolution with the SOS; sole proprietors use county recorder | $5 (LLC) |
| Kansas | No state DBA registration; check city and county rules | None at state level |
| Kentucky | LLCs file with the SOS plus a county copy; sole proprietors with county clerk | $20 (SOS); 5 years |
| Louisiana | Optional state trade name (10 years); assumed name certificate with parish clerk | $95 state trade name (since Oct 1, 2026) |
| Maine | LLCs file with the Secretary of State; sole proprietors with the town clerk | $125 (LLC); no renewal |
| Maryland | Register with SDAT before use; renew every 5 years | $25 |
| Massachusetts | Business certificate with each city or town clerk; renew every 4 years | Varies by town ($40 to $65) |
| Michigan | LLCs file with LARA (about 5 years); sole proprietors with the county clerk | $25 (LLC) |
| Minnesota | File with the Secretary of State; publish twice; free annual renewal | $50 online / $30 mail |
| Mississippi | Optional registration with the Secretary of State; valid 5 years | $25 |
| Missouri | Register with the Secretary of State within 5 days of use; renew every 5 years | $7 |
| Montana | Filed online with the Secretary of State; renew every 5 years | $20 |
| Nebraska | Register with the SOS; publish once; file proof within 45 days; 10 years | $100 online / $110 paper |
| Nevada | Fictitious firm name with the county clerk; Clark and Washoe renew every 5 years | $25 (Clark, Washoe) |
| New Hampshire | Trade name registered with the Secretary of State; renew every 5 years | $50 (+$2 online) |
| New Jersey | LLCs register an alternate name with DORES; sole proprietors with the county clerk | $50 (LLC); 5 years |
| New Mexico | No state or county DBA registration | None |
| New York | LLCs file with the Department of State; sole proprietors with county clerk; no publication | $25 (LLC, no county fee) |
| North Carolina | Assumed business name certificate with the county register of deeds; no expiry | $26 |
| North Dakota | Trade name registered with the Secretary of State; renew every 5 years | $25 |
| Ohio | Trade name or fictitious name report with the Secretary of State; renew every 5 years | $39 (renewal $25) |
| Oklahoma | Required trade name report filed with the Secretary of State | $25 |
| Oregon | Assumed business name with the Secretary of State; renew every 2 years | $50 |
| Pennsylvania | Register with the Department of State; individuals must advertise in two newspapers | $70 |
| Rhode Island | LLCs file with the Secretary of State; sole proprietors with the city or town | $50 (+$2.50 online); no renewal |
| South Carolina | No state DBA registration; often recorded on a local business license | None at state level |
| South Dakota | Fictitious name statement with the SOS or county register of deeds; 5 years | $10 |
| Tennessee | LLCs file with the Secretary of State; renew every 5 years | $20 |
| Texas | LLCs file with the Secretary of State (up to 10 years); sole proprietors with county clerk | $25 (LLC) |
| Utah | Register with the Division of Corporations; renew every 3 years | $22 (renewal $18) |
| Vermont | Register with the Secretary of State within 10 days of use; renew every 5 years | $70 (renewal $65) |
| Virginia | File with the State Corporation Commission (circuit courts stopped in 2020) | $10 |
| Washington | Trade name registered with the DOR Business Licensing Service | $5 per name, plus application fee |
| West Virginia | Trade name filed with the Secretary of State; free for sole proprietors | $25 (LLC) |
| Wisconsin | Optional trade name registration with DFI; no county filing; 10 years | $15 |
| Wyoming | Optional trade name with the Secretary of State; notarized; valid 10 years | $100 (renewal $50) |
Before filing, make sure to check your state’s current requirements, renewal rules, and publication obligations, as DBA regulations can change over time.
How to change, renew or cancel a DBA
A DBA isn’t permanent in most states. Many registrations expire after a set term, often 5 years, and you renew by filing a renewal form and paying a fee before the expiration date. Missing the deadline can cancel your registration.
If you change your DBA name, you usually file a new registration rather than editing the old one. When you stop using a name, most states let you file a cancellation or withdrawal so the public record is accurate. If you’re changing your LLC’s legal name instead, that’s a different filing: see how to change your LLC name.
Common DBA mistakes
A DBA can be a useful business tool, but many business owners misunderstand what it actually does. These are some of the most common DBA mistakes to avoid.
- Assuming a DBA creates an LLC: a DBA only registers a business name. It does not create a legal entity or provide liability protection.
- Thinking a DBA protects your business name: registering a DBA usually does not give you exclusive rights to a name or prevent competitors from using something similar.
- Forgetting renewal deadlines: some states require DBAs to be renewed periodically. Missing a renewal deadline could result in losing your registration.
- Using a DBA without registering it: operating under an unregistered business name may lead to penalties depending on your state or local requirements.
- Skipping a business name search: filing a DBA without checking name availability first can create branding conflicts or delay approval.
Is a DBA right for your business?
A DBA can be a useful tool for entrepreneurs who want more flexibility in how they brand and operate their businesses. It allows sole proprietors, partnerships, LLCs, and corporations to legally conduct business under a different name without creating a separate entity.
However, it pays to understand the difference between a DBA and an LLC. While a DBA can help with branding and business operations, it does not provide liability protection or legal separation between personal and business assets.
Before registering a DBA, consider your long-term business goals, branding needs, and whether you also need the legal protections that come with forming an LLC. Compare the main types of LLC if you’re weighing that step.
FAQ
No. DBA rules vary by state and locality, and a few states have no DBA registration. Check with your state or county filing office before you use a name other than your legal name.
No. A DBA isn’t a separate legal entity, so it doesn’t get its own EIN. It uses the EIN or tax ID of the owner or the LLC that registered it.
It depends on the state. Many states require renewal every 5 years, some every 2 to 10 years, and a few registrations never expire. Check your state’s rules when you file.
Yes. An LLC can register multiple DBAs, which lets it run different businesses or brands under the same legal entity. Each name usually needs its own filing and fee.
No. Registering a DBA doesn’t give you exclusive rights to the business name. To secure exclusive rights for your goods or services, consider a federal trademark registration.
State filing fees range from about $5 to $150. Some counties charge more, and states that require newspaper publication add the cost of the notice. Renewal fees apply in many states.
Only if you want to operate under a name that’s different from your LLC’s legal name. If you use the exact registered name, including “LLC,” you don’t need a DBA.