Our work is reader-supported, meaning that we may earn a commission from the products and services mentioned.

How To File A New Hampshire Trade Name (DBA)

How To File A New Hampshire Trade Name (DBA)

Advertising Disclosure


How To File A New Hampshire Trade Name (DBA)

A Trade Name, also known as a DBA or “Doing Business As,” “Assumed Name,” or “Fictitious Name,” is a name used by a business that is different from the legal name of the business.

When a business wants to operate under a name other than its legal name, the state of New Hampshire, like most states, requires the business to register its business name.  The registration requirement was designed to protect consumers from business owners hiding anonymously behind the name of a business.

Related: How to start a business in New Hampshire

Who needs to register for a New Hampshire Trade Name?

The requirements and need to register for a Trade Name vary depending on the type of business entity.

Sole proprietorships and general partnerships are the most common entities to register for a DBA.

The legal name of a sole proprietor or partnership can be the owner’s full first and last name, which can be used without registering.  For example, if John Smith starts a New Hampshire business repairing computers but doesn’t use a business name, he doesn’t have to register.  If John decides to name his business John’s Computer Repair, then he will need to register.

Related: How to start a sole proprietorship in New Hampshire

Corporations, Limited Liability Companies, Limited Partnerships, and Limited Liability Partnerships won’t typically register a fictitious name since a unique entity name is created during the formation process.  Some will file for a new Trade Name if they have another business they want to operate under their corporate/LLC/LP/LLP umbrella to keep the liability protection without having to form another entity.

How much does it cost to register a business name in New Hampshire?

The filing fee to register a Trade Name in New Hampshire is $50.

Trade names need to be renewed every five years.

What are the steps to file a DBA in New Hampshire?

Step 1: Verify Name Availability

Every business name registration must be unique and not too similar to any other names that are on record.  Before filling out the form, visit the New Hampshire Department of State’s business name database to see if the name you want is available.

Learn how to do a business name search in New Hampshire.

Step 2: Fill out the Trade Name Form

You can fill out the online form or download the mail-in form (TN-1)

Information requested on the form includes:
– Business name
– Business address
– Description of the business
– Date the business was organized
– Name and address of the applicant

Step 3: Submit the Application for Registration of Trade Name Form

File the form along with the filing fee online, or mail to:

New Hampshire Department of State, Corporation Division,
107 N Main St, Rm 204
Concord, NH 03301-4989

If you have questions about the process, you can contact the New Hampshire Secretary of State at corporate@sos.nh.gov or 603-271-3246.

If you would prefer to have a someone else research DBA name availability and file the required forms, Swyft Filings, MyCompanyWorks, and LegalZoom offer a DBA registration service for $99, plus state fees.

Can someone steal my business name after registering a New Hampshire DBA?

While registering your Trade Name will keep someone else from registering the exact same name in New Hampshire, it does very little to stop someone else from operating a business under that name in other states.

If stopping others from using your business name is important, you can protect it through a federal trademark through the U.S. Patent & Trademark Office.

Learn more about trademarking a business name.

Does NH require a DBA?

Any New Hampshire sole proprietorship or partnership that wants to do business under a name that is different from the owner’s full name or a New Hampshire corporation or LLC that wants to operate under a name that is different from the legal name of the business is required to register the name.

In addition to the legal requirement, the trade name offers other benefits such as proving the existence of a business, opening a business bank account, registering a merchant account to accept credit cards, and others.

Does NH require a business license?

The Trade Name registration isn’t a business license, so there may be additional requirements you have to complete before starting your business.

Every business will have different requirements, so check out what business licenses and permits are needed in New Hampshire.

Does a Trade Name need an EIN?

An EIN or Employer Identification Number (also informally referred to as a tax ID number) is a unique nine-digit number that some businesses will register for through the Internal Revenue Department (IRS). An EIN is required for partnerships, corporations, multi-member LLCs, or any business that has employees.

Sole proprietorships and single-member LLCs without employees can use the owner’s social security number to identify the business.
There is no cost to get an EIN when registering directly from the IRS.

Related: How to register for an EIN in New Hampshire

Are there any naming restrictions when filing a Trade Name?

A Trade Name can’t use a business entity suffix that is different from the type of business entity. For example, a sole proprietorship can’t use LLC or corporation in its name.

Words that infer a financial institution, such as “bank,” “banker,: “savings and loan,” “credit union” or other similar words, are restricted. 

Additionally, a Trade Name can’t include terms such as a political party or farmers’ market unless the entity has prior approval.


  • Greg Bouhl

    With over two decades as an entrepreneur, educator, and business advisor, Greg Bouhl has worked with over 2,000 entrepreneurs to help them start and grow their businesses. Fed up with clients finding and acting on inaccurate and outdated information online, Greg launched StartUp101.com to be a trusted resource for people starting a business.

How To File A New Hampshire Trade Name (DBA)

How To File A New Hampshire Trade Name (DBA)

Leave a Reply

Your email address will not be published. Required fields are marked *

Some (but not all) of the links on StartUp101.com are affiliate links. This means that a special tracking code is used and that we may make a small commission on the sale of an item if you purchase through one of these links. The price of the item is the same for you whether it is an affiliate link or not, and using affiliate links helps us to maintain this website.

StartUp101.com is also a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

Our mission is to help businesses start and promoting inferior products and services doesn’t serve that mission. We keep the opinions fair and balanced and not let the commissions influence our opinions.