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Forming a New Hampshire LLC means satisfying RSA Chapter 304-C on four points: a distinguishable name with the right designator, a registered agent at a New Hampshire street address, a Certificate of Formation accepted by the Secretary of State, and an annual report filed every year afterward. Professional LLCs follow a separate chapter, RSA 304-D, with their own form and membership rules.
A rejected filing pushes back the date your LLC legally exists, and a lapsed registered agent or a string of missed annual reports gives the Secretary of State grounds to dissolve the entity. The fees below come from the Secretary of State's schedules and the Revised Statutes; the online processing timeline is the state's own published figure rather than a practitioner estimate.
1. Name requirements
Your New Hampshire LLC name must include "Limited Liability Company," "L.L.C.," "L. L. C.," or "LLC" under RSA 304-C:32. Without one of these designators, the certificate does not meet the statutory naming requirement and will not be accepted.
The name must also be distinguishable on the Secretary of State's records from every entity already registered, subject to the statutory exceptions and the treatment of reserved names described below. RSA 304-C:32, III-a lists the changes that do not make a name distinguishable: adding an article (a, an, the), pluralizing, phonetic spelling, abbreviating a word, adding a prefix or suffix, or swapping the entity designator, such as changing "Inc." to "LLC."
Search and reservation:
Run a preliminary check in the Secretary of State's business entity search tool before filing.
Treat that search as informational only. Check the New Hampshire Secretary of State's current business filing guidance before submitting a registration. No official page publishes how quickly the database updates after a filing is processed.
File an Application for Reservation of Name under RSA 304-C:27 to hold the name for 120 days. The fee is $15 by mail or $17 through the QuickStart portal, which adds the $2 electronic handling charge described below.
Restricted names:
Language stating or implying a purpose the LLC may not pursue under RSA 304-C:21
"Farmers' market," unless the entity meets the definition in RSA 21:34-a, V
Terms regulated by other statutes, including banking terms and professional designations; the SOS Name Availability Guidelines (dated November 2019) list the restricted words in full
2. Registered agent requirements
Every New Hampshire LLC must continuously maintain a registered office and a registered agent in New Hampshire under RSA 304-C:36. The agent receives service of process and official state notices on the LLC's behalf.
Who may serve, per RSA 304-C:36, I(b):
An individual who resides in New Hampshire and whose residential or business office address is identical to the registered office
A corporation organized under RSA 292, 293-A, or 294-A with a business office at the registered office
An LLC formed under RSA 304-C, or a limited liability partnership formed under RSA 304-A:44, with a business office at the registered office
The registered office must be a physical New Hampshire street address; a P.O. box does not qualify. The statute does not itself impose business-hours availability or written-consent requirements on the agent.
Because a domestic LLC formed under RSA 304-C is an eligible agent, New Hampshire law does not bar an LLC from acting as its own registered agent, provided it keeps a qualifying business office at the registered office address. The annual report requires current registered-office and registered-agent information, and that information is public record along with the certificate of formation; many owners appoint a professional agent to keep a home address off those filings.
Changing agents requires Form 10, Statement of Change of Registered Office or Registered Agent or Both, filed with the Secretary of State. The statutory fee is $15; an online QuickStart submission may total $17, the $15 fee plus the $2 electronic handling charge that RSA 5:10-a authorizes whenever the Secretary of State collects a fee electronically.
The current Form 10 instructions also note that the fee is waived when the form is submitted together with an annual report filed between January 1 and April 1, confirm that waiver is still in effect before relying on it. An agent who resigns files written notice with the SOS, and the appointment ends 31 days after filing or when a successor is appointed, whichever comes first.
3. Certificate of Formation requirements
The Certificate of Formation (Form LLC-1) is the filing that brings your LLC into legal existence; until the Secretary of State accepts it, the entity has not yet come into being under RSA 304-C:31's formation provisions, and there is no liability shield.
RSA 304-C:31 and the official Form LLC-1 instructions require:
LLC name, exactly as you intend to register it
Principal office street address, plus a principal mailing address if different
Business phone number and email address for state correspondence
Nature of the primary business or purpose, with a NAICS code if known. The current form instructions state: "We cannot accept a general clause of 'any lawful activity.'"
Registered agent name and physical street address (no P.O. box)
A statement that management is vested in managers, if applicable; without that statement, members manage
Name, business address, and title of each manager or member to be placed on record
A securities compliance statement under RSA Chapter 421-B, the Uniform Securities Act, which treats an LLC membership interest as a security under RSA 421-B:1-102(53)(A)
Signature of a manager, or of a member if there is no manager, with the title printed
New Hampshire LLC formation costs $100 by mail, the flat fee set in RSA 304-C:191, or $102 online through QuickStart — the same $100 fee plus the $2 electronic handling charge under RSA 5:10-a. Everything on the certificate becomes public record, so weigh privacy before listing a personal address.
Current processing time for online filings is 10 to 15 business days, per the SOS Business FAQs. A mail-filing timeline is not separately published; check the Announcements on the QuickStart login page or call the Corporation Division at 603-271-3246 for the current date. Expedited service is available in person at the Corporation Division's Customer Lobby for an additional $25, per the same SOS source.
Professional LLCs file Form PLLC-1 instead, at the same paper and online fees as Form LLC-1, and are governed by RSA Chapter 304-D. RSA 304-D:1 covers physicians, attorneys, CPAs, dentists, nurses, engineers, and other licensed professions. A PLLC may render services within a single profession and must end its name with "professional limited liability company," "P.L.L.C.," or a similar abbreviation. RSA 304-D:7 restricts PLLC membership to natural persons, PLLCs, general partnerships, and professional corporations qualified to be members, a standard holding LLC or fund entity does not qualify.
This article treats that mismatch as a membership-eligibility restriction rather than asserting a specific consequence (such as automatic voidness) for a transfer to a disqualified entity; confirm the exact statutory treatment before stating it as settled.
4. Operating agreement requirements
New Hampshire does not require a written operating agreement, but the statutory defaults that fill the gap rarely match how members want to run the company. Under RSA 304-C:40, an operating agreement may be written, oral, or implied by course of dealing, and RSA 304-C:44 exempts it from any statute of frauds. An oral or implied agreement is hard to prove in a dispute, which is why a signed document remains the practical standard.
For single-member LLCs, RSA 304-C:43 makes the agreement enforceable even though it has only one party. A written agreement documents the separation between owner and company, which supports the liability shield if a court examines whether the LLC operates as a distinct entity.
Multi-member LLCs have more to lose from silence. Without an agreement, RSA 304-C:67 gives members a majority vote on matters reserved to them, and RSA 304-C:90 allocates profits and losses by the agreed value of contributions. New Hampshire's Act also imposes default fiduciary duties: RSA 304-C:110 gives managers a duty of loyalty, RSA 304-C:108 a duty of care, and RSA 304-C:109 a business-judgment-rule presumption, all unless the operating agreement provides otherwise. RSA 304-C:106 extends those same manager duties to members of a member-managed LLC, and to non-manager members of a manager-managed LLC to the extent they exercise management functions.
Because a New Hampshire LLC defaults to member management under RSA 304-C:31 absent a contrary statement, most small LLCs have fiduciary duties running between members by default, not merely as something the agreement must affirmatively create. Your agreement should set capital contributions, ownership percentages, voting thresholds, distribution rules, admission and withdrawal procedures, and a dispute resolution process, and it can modify or narrow (though not eliminate the good-faith floor of) these default duties, subject to the implied covenant of good faith and fair dealing referenced in RSA 304-C:111.
Under RSA 304-C:41, anyone who becomes a member or manager is deemed to assent to the operating agreement, and the LLC itself is bound even if it never signed. The agreement takes effect on signing and can be amended as the business changes.
5. Initial and ongoing compliance requirements
Approval of the Certificate of Formation starts a set of federal, state, and local obligations, and New Hampshire's mix differs from most states because the state has no general sales tax.
Immediate requirements:
Obtain an EIN if your circumstances require one. Per IRS guidance, EIN requirements depend on federal tax classification: a single-member LLC taxed as a disregarded entity needs its own EIN only if it has employees, has excise tax liability, or elects corporate tax treatment, though it must use its own EIN for employment tax reporting once it has employees; a multi-member LLC, taxed as a partnership by default, needs an EIN in virtually all cases.
Skip sales tax registration. The Department of Revenue Administration states plainly: "No, there is no general sales tax on goods purchased in New Hampshire." Hotels, restaurants, sleeping accommodations, and motor vehicle rental operators must instead register for the 8.5% Meals and Rooms Tax through Granite Tax Connect, as RSA 78-A:4 requires.
Register as an employer: new employers must file an Employer Status Report with NH Employment Security within 30 days of first providing employment, and new hires must be reported within 20 days. Workers' compensation coverage is required once you have one or more employees, full or part time, under RSA 281-A:5.
Apply for any industry-specific licenses or permits your operations require.
Open a business bank account using the approved Certificate of Formation and EIN.
Secure local permits or zoning approvals from your municipality.
Ongoing requirements:
File a New Hampshire LLC annual report with the Secretary of State between January 1 and April 1 each year. RSA 304-C:194 sets the reporting window and content requirements and, at RSA 304-C:194, III(b), exempts an LLC formed between December 1 of the prior year and April 1 of the current year from that current year's report, the exemption applies to that year's filing cycle, not to every obligation tied to the formation year. The $100 report fee and the $50 late fee for reports received after April 1 are set in RSA 304-C:191, not RSA 304-C:194. Information must be current as of January 1, and a report corrected and redelivered within 30 days of an SOS notice counts as timely under RSA 304-C:194, IV(b).
Pay Business Profits Tax at 7.5% for taxable periods ending on or after December 31, 2023, per RSA 77-A:2. The gross-business-income filing threshold adjusts biennially: $103,000 for periods beginning January 1, 2023, and above $107,000 for periods beginning January 1, 2025. Confirm the exact current figure against the DRA's most recent biennial adjustment before publishing or relying on it.
File Business Enterprise Tax returns if gross business receipts or the enterprise value tax base exceed the filing threshold, either test alone triggers the requirement, at a 0.55% rate on the taxable enterprise value tax base. The threshold is $300,000 for taxable periods beginning January 1, 2025. Under HB 155, signed into law on July 10, 2026, the threshold rises to $400,000 for taxable periods beginning January 1, 2027, and an automatic mechanism will reduce the BET rate by 0.05 percentage points for every $100 million in certified business tax surplus, with a 0.25% floor, once that provision takes effect on January 1, 2027. Until then, the rate stays at 0.55%. BPT and BET are DRA obligations, administered apart from SOS filings, and an LLC above these thresholds may be required to file; confirm classification and any exemptions with a tax professional.
Report any registered agent or office change to the SOS within 60 days.
File a separate amendment for changes to business purpose or NAICS code; the SOS Business FAQs confirm the annual report cannot make those changes.
Keep proper business records and maintain separation between personal and business finances.
Renew professional licenses and industry-specific permits as required.
Consequences of non-compliance
New Hampshire's penalties for LLC non-compliance escalate from a flat late fee to loss of the entity's authority to do business.
Late annual reports: a $50 late fee applies to reports received after April 1, per the SOS Business FAQs and RSA 304-C:191.
Administrative dissolution: under RSA 304-C:136, the Secretary of State may dissolve an LLC that, among other grounds, fails for two consecutive years to deliver its annual report or pay the fees within 60 days of the due date, goes 60 or more days without a registered agent or registered office, fails to report an agent change within 60 days, or reaches the expiration of a stated duration in its certificate of formation. Not every ground carries an identical notice-and-cure period; check the specific ground at issue against the current statutory text.
Loss of authority: the SOS states that a business that has been Administratively Dissolved or Administratively Suspended "will not have the authority to transact business in the State of New Hampshire." This ends the entity's authority to transact business; it does not necessarily eliminate every winding-up power the entity may still exercise. The dissolved status appears in public records where lenders, counterparties, and acquirers will find it.
Default judgment risk: outdated registered agent information is a practical risk, not a guaranteed statutory outcome. Under RSA 304-C:137, administrative dissolution does not end the registered agent's authority, so the agent on record keeps the receiving process for a dissolved entity; whether that service is treated as valid depends on the facts of the case.
DRA penalties and interest on unpaid Business Profits Tax and Business Enterprise Tax.
PLLC exposure: member licensing under the applicable board statute is a prerequisite separate from the SOS filing, so a PLLC that loses entity status still answers to its licensing authority.
Foreign LLCs face a faster trigger, per the SOS Business FAQs: a foreign LLC is listed as "Administratively Suspended" after it fails to file the current year's annual report, without the two-year runway domestic LLCs get. This article relies on the SOS's own summary here rather than a specific foreign-entity statute citation, which should be added before publication.
Automate your New Hampshire LLC compliance with Discern
Filing the Certificate of Formation is the entry point; staying in good standing is the ongoing work. Discern is a New Hampshire registered agent, files each April 1 annual report from stored entity data pre-filled and validated against the state's formatting rules, and pushes state notices to your dashboard in real time, so a missed report surfaces before it becomes grounds for administrative dissolution.
For businesses with entities beyond New Hampshire, the same registered agent, annual report, and foreign registration work repeats in every state where you're registered, though the specific requirements and deadlines vary by jurisdiction. Discern reports that customers with 200+ state registrations spend 5 to 10 minutes annually on compliance, and its onboarding audit checks incoming entities against each state's standing requirements before they join the portfolio.
Frequently asked questions about New Hampshire LLC requirements
These answers cover the questions that come up most often when forming or maintaining a New Hampshire LLC.
Can a New Hampshire LLC serve as its own registered agent?
Yes. RSA 304-C:36, I(b) lists an LLC formed under RSA 304-C among eligible agents, as long as the LLC keeps a business office at the registered office address. The agent's address is public on the certificate and every annual report, which is why many owners use a third-party agent instead.
How much does it cost to form an LLC in New Hampshire?
The Certificate of Formation fee is $100 by mail or $102 online, where QuickStart adds the $2 electronic handling charge. Reserving a name ahead of filing costs $15 by mail or $17 online, and in-person expedited service adds $25.
When is the New Hampshire LLC annual report due?
The filing window opens January 1 and closes April 1 each year. An LLC formed between December 1 and April 1 skips the report for that filing cycle. Reports received after April 1 incur a $50 late fee, and two consecutive years of nonfiling allows the Secretary of State to administratively dissolve the entity.
Does a New Hampshire LLC need to register to collect sales tax?
No. The Department of Revenue Administration states: "No, there is no general sales tax on goods purchased in New Hampshire." Operators of hotels, restaurants, sleeping accommodations, and motor vehicle rentals register with the DRA for the Meals and Rooms Tax instead, and an LLC above the BPT or BET thresholds may be required to file those returns with the DRA.
Does New Hampshire allow series LLCs?
The RSA 304-C provisions reviewed for this article contain no express series-LLC authorization. That reflects statutory silence rather than a definitive legal ruling; talk to counsel before relying on it, especially if you're considering a series structure to separate assets or business lines. The alternative many businesses use is forming separate LLCs, each with its own Certificate of Formation, registered agent, and annual report.
Updated on
2026-09-29
