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Before going into the details, here is a quick checklist for registering a DBA in Maryland.
| Official Term | Trade name [1] |
|---|---|
| Filing Agency | Maryland State Department of Assessments and Taxation (SDAT), filed online through Maryland Business Express or by mail [2] |
| Form | Trade Name Application (filed online or on the SDAT paper form) [1] |
| State Fee | $25 to register; an extra $50 for expedited service ($75 total expedited) [1] |
| Processing Time | Standard filings are ordinarily processed within about 4 weeks; expedited service is available for an additional fee [1] |
| Renewal Required | Yes. A trade name registration is effective for 5 years and may be renewed for additional 5-year periods [4] |
| Cancellation | File a cancellation with SDAT; the fee is $25 [4] |
A DBA stands for "Doing Business As." It is an alternative name your business uses instead of its registered legal name. In Maryland, the official term is "trade name," and you register it with the Maryland State Department of Assessments and Taxation (SDAT).
Any type of business can register a trade name in Maryland. This includes sole proprietorship, general partnerships, LLCs, and corporations. Unlike many states, Maryland registers trade names at the state level rather than county by county.
A DBA does not create a new legal entity. It does not change your tax status, your liability protection, or your ownership structure. It is only a name your business is authorized to operate under.
| Brand Fit | Commercial Banking | Multi-Entity Branding | Privacy & Trust |
|---|---|---|---|
| Sole proprietors operate under their personal names by default. A trade name lets you do business under a professional brand instead. | Maryland banks generally require a registered trade name before opening a business account in a name other than your legal name. | One entity can run several brands or product lines under separate trade names without forming a new company for each. | A trade name keeps your personal identity off public branding and signals to customers that you are an established business. |
Maryland routes all trade name registrations through the Maryland State Department of Assessments and Taxation. You can file online through Maryland Business Express or mail a paper Trade Name Application to the SDAT Charter Division. The steps below apply either way. [2]
Your trade name must be different from your own legal name, and it cannot contain a term that implies your business is a type of entity that it is not. For example, an individual cannot include "Inc." in a trade name. SDAT checks the name only against other trade names already filed with the Department. [1]
Run a search before you file. You can check existing business names and trade names for free through the Maryland Business Express business search. Because SDAT does not screen your name against federal trademarks or records in other states, a clear search protects your brand. [3]
Maryland trade name rules are light, but a few hard limits apply.
| Your trade name must differ from your legal name | Match designators to your real structure | Conflicts are your responsibility |
|---|---|---|
| A trade name must be a designation other than the owner's own legal name, because that is what makes it a trade name under Maryland law. [4] | A trade name may not contain a term that implies it is a type of entity that it is not. A sole proprietor should not use "LLC," "Inc.," or "Corp" in a trade name. [1] | SDAT does not screen trade names against trademarks or out-of-state records, so run a federal trademark search to avoid infringing a protected mark. [5] |
Run a trademark search at the U.S. Patent and Trademark Office (USPTO) as well. Registering a trade name in Maryland gives you no trademark rights and does not stop a federal trademark holder from challenging your use of the name. [1]
File the Trade Name Application with SDAT. The fastest path is online through Maryland Business Express, but you can also mail the paper form with a check. [1]
| Situation | State Fee |
|---|---|
| Register a trade name (standard service) | $25 [1] |
| Add expedited service | An extra $50, for $75 total [1] |
| Amend, cancel, or renew a trade name | $25 [4] |
Filing fees are non-refundable. If an application is incomplete or unsigned, SDAT will not accept it, and you will need to correct and refile.
Once SDAT accepts a paper filing, it sends an acknowledgement with the filing date to the address of the owner, ordinarily within about 4 weeks of acceptance. Expedited service shortens that timeline for an additional fee. [1]
Keep the acknowledgement on file. Banks, vendors, and payment processors will ask for proof of your registered trade name before they let you operate or accept funds under it.
A Maryland trade name registration is effective for 5 years from the date it is filed. You can renew it for another 5 years by filing a renewal within the 6 months before the registration expires. If you do not renew, SDAT forfeits the trade name and a new application is required. [4]
A DBA and an LLC are not the same thing. This is one of the most common points of confusion for new business owners, and getting it wrong can be costly.
A DBA is only a name. It does not create a legal entity. It does not protect your personal assets. If someone sues your business, your personal finances are exposed.
Forming an LLC means you are creating a separate legal entity. That separation generally protects your personal finances, home, and savings from business debts and lawsuits.
If you are a sole proprietor who wants a business name without incorporating, a trade name is a fast, affordable option. If you want liability protection, you need an LLC or a corporation.
Many businesses do both: they form an LLC and then apply for a DBA to run a brand under a name different from the LLC's legal name.
| Feature | DBA (Trade Name) | LLC |
|---|---|---|
| Creates a legal entity | No | Yes |
| Personal asset protection | No | Yes |
| Changes the tax treatment | No | Can elect a different tax status |
| Required to operate under a different name | Yes, if the name differs from your legal name | No, the LLC name is its legal name |
| Cost to register | $25 state fee + Swyft service fee | State filing fee + Swyft service fee |
Most Maryland trade name problems come down to the same handful of errors. Here is what to watch out for before you file.
Checking Google or a domain registrar is not the official search. Use the Maryland Business Express business search to confirm your trade name before you file. [3]
A sole proprietor cannot include "LLC," "Inc.," or "Corp" in a trade name unless the business is actually organized that way. The designator must match your real structure. [1]
A Maryland trade name is effective for only 5 years. Calendar the renewal and file it within the 6 months before expiration, or SDAT will forfeit the name. [4]
A trade name is only a name. It does not create a legal entity and does not shield your personal finances. If you want protection, form an LLC.
Acceptance of a trade name application does not give you any greater right to the name than you already had. SDAT checks only against other trade names on file, not trademarks. [1]
State approval is not trademark clearance. A federal trademark holder could still force you to stop using the name. [5]
[1] Maryland State Department of Assessments and Taxation. Trade Name Application and Instructions. Accessed on June 4, 2026.
[2] Maryland State Department of Assessments and Taxation. Maryland Business Express Online Filing Portal. Accessed on June 4, 2026.
[3] Maryland State Department of Assessments and Taxation. Maryland Business Express Business Search. Accessed on June 4, 2026.
[4] Maryland General Assembly. Corporations and Associations Article, Section 1-406, Trade Names. Accessed on June 4, 2026.
[5] U.S. Patent and Trademark Office (USPTO). Trademarks. Accessed on June 4, 2026.
[6] Maryland State Department of Assessments and Taxation. Business Registrations and Filings. Accessed on June 4, 2026.
Maryland State Department of Assessments and Taxation (SDAT). Trade name forms, fees, and business registration filings.
Maryland Business Express. Online portal to register a business, file a trade name, and search names.
Comptroller of Maryland. State tax registration and account setup for new Maryland businesses.
IRS. Get an Employer Identification Number (EIN).
U.S. Small Business Administration, Baltimore District. SBA Baltimore District Office support for Maryland small businesses.
