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New Hampshire LLC · Step 1 of 8 · Verified July 2026

New Hampshire LLC Name Search & Naming Rules (2026)

Your New Hampshire LLC name has to clear the Secretary of State's database before you can file. Here's how to search it free, the naming rules that trip people up, when the $15 reservation is worth it, and how the $50 trade name registration lets one LLC run multiple brands.

Ahmad Adil Written & verified by Ahmad Adil, LLC School·Updated July 2026
Quick Answer

Search availability free with the Secretary of State's business name database, accessible through NH QuickStart. Your name must be distinguishable from every existing New Hampshire entity and contain "Limited Liability Company," "LLC," or "L.L.C." It cannot suggest it's a bank, insurance company, or government entity without proper authorization. Not ready to file? New Hampshire reserves a name for $15 for 120 days. Operating under a different brand uses a trade name (DBA) registration for $50.

NH Naming Fast Facts
Name search
Free — SOS database
Required designator
LLC, L.L.C., or full "Limited Liability Company"
Name reservation
$15 · 120 days
Trade name (DBA)
$50
Filed with
Secretary of State
Distinguishable rule
Yes — from all NH entities

New Hampshire LLC Naming Rules

  • Required designator: the name must contain "Limited Liability Company" or an abbreviation — "LLC" or "L.L.C."
  • Distinguishable on the record: it can't match or closely shadow any entity registered with the Secretary of State — check the free business name database before you commit.
  • Restricted words: can't suggest your business is a bank, insurance company, or government entity without proper authorization.

Check the domain before you commit: at $100–$102 a filing, a name mistake isn't expensive to fix in New Hampshire — but a branding one is. Before you fall for a name, confirm the .com (or a clean variant) is free and grab the matching social handles. The state check takes a minute; whether your real brand is available online is what actually decides if you'll be filing a $50 trade name six months from now.

Name Checker & Availability Advisor

New Hampshire LLC Name Checker & Availability Advisor

Format check + reservation guidance · not a substitute for the SOS search

Availability is determined solely by the New Hampshire Secretary of State \u2014 run the official search before filing or reserving. Reservation: $15 for 120 days.

1

Open the business name database via NH QuickStart

Free, searches every LLC, corporation, and reserved name on file in New Hampshire.

2

Search core words without the designator

Search "Granite State Woodworks" rather than "Granite State Woodworks LLC" to surface the widest set of potential conflicts.

3

Check close variants

Minor spelling, spacing, or punctuation differences don't reliably make a name distinguishable — when in doubt, call the Secretary of State's Corporations Division to confirm.

4

Reserve or file

Clean search + ready to go → file the Certificate. Clean search + a real delay → the $15 reservation holds it for 120 days.

The $15 Reservation: When It's Worth It

File a name reservation with $15 and the Secretary of State holds your name for 120 days — a generous window relative to the low fee. Useful if you're lining up financing, licensing, or a launch date and want the name locked. But if you're filing within a week or two, skip it — New Hampshire's formation process is quick, and the reservation just adds $15 and a step. Reserve when there's real time and real reason; otherwise go straight to the Certificate of Formation.

Trade Names (New Hampshire's DBA)

Want your LLC to operate under a different brand — or several? File a trade name registration with the Secretary of State for $50. This is how a single LLC can run multiple product lines or storefronts under distinct names while keeping one legal entity, one EIN, and one set of formation paperwork behind all of them. Details in Step 7.

Ahmad Adil's Take: New Hampshire's naming process is about as straightforward as this series gets — clear rules, a generous 120-day reservation for a small fee, and no surprise publication or county-level complications like you'll find in some other states. My only real advice here: don't skip the domain check just because the state process is simple. A $100 formation fee is nothing compared to redoing your branding after you've already printed materials and built a following around a name that turns out not to work online. Search the state database, then search the internet — both matter.

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Next Step · Step 2 of 8
Appoint Your New Hampshire Registered Agent
Who qualifies, what it costs, and DIY vs hiring a service.
Step 2: Registered Agent
Frequently Asked Questions

New Hampshire LLC — FAQ

Is the New Hampshire LLC name search free?
Yes. The Secretary of State\u2019s business name database, accessible through NH QuickStart, is free and covers every registered and reserved name in the state. Search your desired name before filing to confirm it will clear.
What designator does a New Hampshire LLC name need?
The name must contain "Limited Liability Company" or an abbreviation: "LLC" or "L.L.C." It must also be distinguishable from every entity on file and avoid suggesting bank, insurance, or government affiliation without authorization.
How does New Hampshire\u2019s name reservation work?
File a name reservation with $15 and the Secretary of State holds your chosen name for 120 days. It\u2019s useful when you\u2019re lining up financing or a launch, but unnecessary if you\u2019re filing within a week or two.
What is a New Hampshire trade name (DBA)?
A registration that lets your LLC operate under a different brand name than its legal name, filed with the Secretary of State for $50. One LLC can register multiple trade names for different brands or product lines.
Should I reserve my name or just file?
If you\u2019re filing within a week or two, skip the reservation \u2014 New Hampshire\u2019s processing is quick and the $15 hold just adds a step. If you\u2019re months out and locking the name matters, the 120-day reservation is cheap insurance.
Does searching a name reserve it?
No \u2014 a search only shows current availability. Anyone can claim the name until you file your Certificate or pay $15 to reserve it for 120 days.
Can two New Hampshire businesses have similar names?
Names must be distinguishable on the Secretary of State\u2019s records. Minor differences in spelling, spacing, or punctuation don\u2019t reliably qualify as distinguishable \u2014 call the Corporations Division to confirm a borderline name before filing.
Ahmad Adil, founder of LLC School
About the Author
Ahmad Adil

Ahmad Adil is the founder and CEO of LLC School. The figures here — the $100 Certificate of Formation, the $100 annual report due April 1, and New Hampshire’s Business Profits Tax (7.5%) and Business Enterprise Tax (0.50%) — reflect current New Hampshire Secretary of State and Department of Revenue Administration guidance. This is educational content, not legal or tax advice.

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