DBA filing · New Hampshire

How to File a DBA in New Hampshire

In New Hampshire, a DBA is registered at the state level. Register with the Secretary of State — Corporation Division for $50.

A DBA — short for “doing business as,” also called a fictitious business name, assumed name, or trade name — lets you legally operate under a name that isn't your own legal name or your company's exact registered name. In New Hampshire, a DBA is registered at the state level.

Here's exactly where and how to register your DBA in New Hampshire — and what it costs — so your filing is accepted the first time.

How to file a DBA in New Hampshire

  1. Confirm your name is available. Run a quick pre-check on our name-search tool, then verify it against the official New Hampshire records so you don't pay to file a name that's taken.
  2. Complete the New Hampshire filing. Register with the Secretary of State — Corporation Division. The filing fee is $50.
  3. Handle any extra steps. Trade Name (Form TN-1) filed online through NH QuickStart.
  4. Keep it active. Your registration lasts 5 yrs before it needs renewing — we'll remind you before it lapses.
Where it's filed: State filing — Secretary of State — Corporation Division.

Two ways to file in New Hampshire

DBAform is a resource either way — do it yourself with the official link, or let us handle it.

Do it yourself — free

Use the official New Hampshire link and the details on this page to file it yourself at no charge.

Open the official New Hampshire filing page →

Done for you — via LegalZoom

Prefer to hand it off? File through LegalZoom, our recommended service (plus the $50 state fee).

File through LegalZoom →

Rather have it done for you?

Don't want to navigate the Secretary of State — Corporation Division yourself? File through LegalZoom, our recommended filing service — they prepare the paperwork and submit it to the correct office (from $99 plus the $50 state fee). DBAform may earn a commission if you use our link, at no extra cost to you.

New Hampshire DBA — frequently asked questions

Where do I file a DBA in New Hampshire? +

In New Hampshire, a DBA is filed with the Secretary of State — Corporation Division. This is a state-level filing.

How much does a DBA cost in New Hampshire? +

New Hampshire's government filing fee is $50. You can file it yourself and pay only that fee, or file through LegalZoom (from $99 plus the state fee).

Does a DBA in New Hampshire expire or need to be renewed? +

A New Hampshire DBA must be renewed every 5 years.

Does New Hampshire require newspaper publication for a DBA? +

No. New Hampshire does not require you to publish a notice of your DBA in a newspaper.

Do I have to file a DBA in New Hampshire? +

If you operate under any name other than your own legal name (as a sole proprietor) or your business's exact registered name (as an LLC or corporation), New Hampshire requires you to register it. If you use only your legal name, you generally don't need one.

Is a DBA the same as an LLC in New Hampshire? +

No. A DBA is only a registered trade name -- it doesn't create a legal entity or protect your personal assets. An LLC does both. Many owners form an LLC and then file a DBA under it.

Other states

Filing in more than one state, or not sure this is the right one? Browse every jurisdiction or jump to a popular state:

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