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Before going into the details, here is a quick checklist for registering a DBA in Delaware.
| Official Term | Trade Name |
|---|---|
| Filing Agency | Delaware Division of Revenue, through the Delaware One Stop portal [1] |
| Form | Online Trade Name Application, filed through Delaware One Stop [2] |
| State Fee | $25, filed once statewide (no separate county fees) |
| Processing Time | No fixed timeline published. Applications are submitted and processed entirely online. |
| Renewal Required | No. Delaware trade names do not expire. [1] |
| Cancellation | Free. File through the Delaware One Stop termination workflow. [1] |
A DBA stands for "Doing Business As." It is an alternative name your business uses instead of its registered legal name. In Delaware, the official term is "trade name."
Any type of business can register a trade name in Delaware. This includes sole proprietors, general partnerships, LLCs, and corporations. The process is the same for each.
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.
Delaware also requires your business to have an active Delaware business license before you can register a trade name. If your business does not operate in Delaware but still needs a Delaware trade name, you can apply for a Trade Name Only License instead. [1]
| Brand Fit | Commercial Banking | Multi-Entity Branding | Privacy & Trust |
|---|---|---|---|
| Sole proprietors must use their personal names by default. Registering a trade name lets you operate under a professional business name instead. | Delaware banks generally require a registered trade name before opening a commercial business account in that name. | A trade name lets you launch new product lines or brands without the cost of forming a separate company for each one. | Operating under a trade name keeps your personal identity off public branding and helps build customer trust. |
Delaware moved trade name registration away from the county Superior Courts. As of February 2, 2026, all new trade names are filed online through the Delaware Division of Revenue's One Stop portal. [1]
Delaware requires your trade name to be distinguishable from every other registered business name and trade name on file. A name that is identical or confusingly similar to an existing trade name will likely need to be changed before it is accepted.
Search for free using the Delaware Trade, Business and Fictitious Names Search tool, or check availability directly inside Delaware One Stop when you start your application. [3]
Keep in mind that data can take up to 72 hours to update between One Stop and the search tool, so check One Stop directly if you plan to file soon. [3]
Delaware's naming rules for trade names are simple, but the state does enforce them.
| Your trade name must be unique | Entity designators must match your actual structure | Restricted words require special approval |
|---|---|---|
| It cannot be the same as or confusingly similar to another registered trade name. [4] | A sole proprietorship or partnership cannot include "LLC," "Corp," or "Inc." in its trade name unless it is actually that type of entity. | Terms like "bank" generally require approval unless used in a different context. [4] |
Run a trademark search at the U.S. Patent and Trademark Office (USPTO) as well. Registering a trade name in Delaware does not give you federal trademark rights to that name. [5]
Delaware requires an active business license before you can register a trade name. [1]
If your business operates in Delaware, apply for a standard Delaware business license through One Stop.
If your business does not conduct business in Delaware but still needs a Delaware trade name, for example, to open a bank account or meet a contract requirement, apply for a Trade Name Only License instead. This license costs $25 and requires a Certificate of Good Standing from the Delaware Division of Corporations, which costs $50. [[1](https://revenue.delaware.gov/trade-names-faqs/)][[6](https://corp.delaware.gov/)]
File your trade name application through Delaware One Stop. [2]
| Situation | State Fee |
|---|---|
| New trade name, business already licensed in Delaware | $25 |
| Trade Name Only License, for businesses not operating in Delaware | $25, plus $50 for a Certificate of Good Standing |
| Re-registering a name previously filed with the county Courts | No fee if you provide the court's file number |
| Updating an existing trade name | No fee |
| Cancelling a trade name | No fee |
Online only: Delaware One Stop [2]
Note: Delaware no longer accepts new trade name filings by mail or in person at the county Prothonotary offices. [1]
Once you submit your application, the Division of Revenue processes it digitally. Notarization is no longer required. [1]
After approval, your trade name appears in the Division of Revenue's Trade Name Registry. If your trade name was originally filed with a county Superior Court before February 2, 2026, it remains valid and does not need to be refiled unless you want a Trade Name Certificate from the Division of Revenue. [1]
Delaware trade names do not expire. You can use your registered DBA indefinitely. If you decide to stop using it, you can cancel it for free through One Stop. [1]
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 DBA 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 register a trade name to operate under a brand 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 you want a name other than your legal name | No, the LLC name is your legal name |
| Cost to register | $25 + applicable license fee + Swyft service fee | State filing fee + Swyft service fee |
Most Delaware trade name rejections stem from the same handful of errors. Here is what to watch out for before you file.
The county Prothonotary's office no longer accepts new trade name filings. Some older guides still point there. Always file new trade names through Delaware One Stop. [1]
Delaware now requires an active business license or a Trade Name Only License before a trade name application can go through. Applications filed without one will not be accepted. [1]
A sole proprietor or partnership cannot include "LLC," "Inc.," or "Corp" in their trade name. Only an entity that is actually organized that way may use the matching designator.
A trade name is only a name. It does not create a legal entity and does not protect your personal finances from business liabilities. If you want protection, form an LLC.
Delaware's approval of your trade name does not mean no one else has federal trademark rights to it. A federal trademark holder could still force you to stop using the name.
Delaware trade names do not expire, which is convenient but also easy to forget. Old DBAs for retired brands can cause confusion. Cancel the ones you no longer use.
[1] Delaware Division of Revenue. Trade Names FAQs. Accessed on July 6, 2026.
[2] Delaware One Stop. Register or Modify Your Delaware Trade Names. Accessed on July 6, 2026.
[3] Delaware Division of Revenue. Trade, Business and Fictitious Names Search. Accessed on July 6, 2026.
[4] Delaware Code Online. Title 6, Chapter 31, Trade, Business and Assumed Names. Accessed on July 6, 2026.
[5] U.S. Patent and Trademark Office (USPTO). Trademarks. Accessed on July 6, 2026.
[6] Delaware Division of Corporations. Certificate of Good Standing. Accessed on July 6, 2026.
