Forming the LLC is the easy part and takes about twenty minutes. The gap between what owners think an LLC does and what it actually does is where the losses happen.

New Hampshire makes it genuinely easy to form a limited liability company. You can do it yourself in an afternoon for about a hundred dollars. We will walk through exactly how — and then spend the second half of this article on the part nobody tells you, which is the list of things a Certificate of Formation does not protect you from.

Part one: forming the LLC

Step 1 — Choose and check the name

Your name must be distinguishable from existing New Hampshire registrations and must include an approved designator: “Limited Liability Company,” “L.L.C.,” or “LLC.” Search the Secretary of State’s business name database before you print anything. Availability at the Secretary of State is not a trademark clearance — those are different questions, and a state filing does not give you rights against a prior trademark user.

Step 2 — Appoint a registered agent

Every New Hampshire LLC must maintain a registered agent with a physical New Hampshire street address — not a P.O. box. Any member with a New Hampshire address can serve at no cost. The tradeoff is that the address becomes public and you must actually be there to receive service of process. Commercial registered agent services solve both problems for roughly $50 to $150 a year.

Step 3 — File the Certificate of Formation (Form LLC-1)

File with the Secretary of State, Corporation Division. Filing fees:

•    $100 by mail with the paper Form LLC-1.

•    $102 online through NH QuickStart (the $2 difference is the electronic handling charge).

•    Expedited in-person service is available in the Customer Lobby for an additional fee.

The certificate states the LLC’s name, the nature of its business, the registered agent and office, and whether the LLC is manager-managed. Check the Secretary of State’s current processing dates before promising a client or a lender a formation date.

Step 4 — Get an EIN

Apply directly with the IRS. It is free and takes minutes online. Do not pay a service for this.

Step 5 — Adopt an operating agreement

New Hampshire does not require an operating agreement under RSA 304-C. It is still the single most important document your LLC will have. Without one, the statutory default rules govern — and those defaults were written for a generic company, not yours.

A real operating agreement addresses: capital contributions and who owes what; how profits and losses are allocated and when distributions are made; who has authority to sign contracts and borrow money; what happens on death, disability, divorce, bankruptcy, or a member simply wanting out; how the interest is valued; transfer restrictions and rights of first refusal; deadlock resolution; and dissolution. For a single-member LLC it is shorter but still matters — it is part of the record showing the entity is real and separate.

Step 6 — Open a dedicated bank account

Before the first dollar of revenue arrives. Bring the stamped Certificate of Formation, the EIN letter, and the operating agreement.

Step 7 — Handle trade names, licenses, and taxes

•    Trade name (DBA) under RSA 349 — $50, valid for five years, filed through NH QuickStart or by mail.

•    Licenses and permits — state-level requirements vary by industry (trades, food service, childcare, health-related fields, alcohol), and municipalities in Merrimack County add their own. Check both.

•    Business taxes — register through Granite Tax Connect. BPT applies to businesses with gross business income over $109,000; BET applies over $298,000 in gross receipts or enterprise value tax base.

•    Employer obligations if you hire — NH Employment Security, workers’ compensation coverage, and new hire reporting.

Step 8 — Calendar the annual report

Every New Hampshire LLC files an annual report between January 1 and April 1 each year, for $100, through NH QuickStart. Late filing adds a $50 penalty and puts the LLC in “Not in Good Standing” status. Miss two consecutive years and the state administratively dissolves the LLC. There is a narrow exemption for LLCs formed between December 1 and April 1, which skip that year’s filing.

A note on federal beneficial ownership reporting

The Corporate Transparency Act’s beneficial ownership information (BOI) reporting requirement caused years of confusion for small businesses. That requirement no longer applies to companies formed in the United States. FinCEN issued an interim final rule in March 2025 exempting domestic reporting companies, and on August 11, 2026, FinCEN issued a final rule permanently removing the requirement for U.S. companies and U.S. persons, and announced it would delete previously reported information from U.S. persons. Foreign entities registered to do business in a U.S. state remain subject to reporting. If you were told you needed to file a BOI report for your New Hampshire LLC, you almost certainly do not.

Part two: what the filing does not protect you from

Here is the mental model that causes trouble. Owners think the LLC is a shield: anything that happens in the business stops at the entity. It is closer to a container: it separates business obligations from personal ones, and it has a specific list of leaks.

1. Your own conduct

An LLC does not protect you from liability for torts you personally commit. If you cause the accident, do the defective work, make the misrepresentation, or commit the assault, you are personally liable. The LLC may be liable too. The entity protects you from others’ acts and from the company’s contractual debts — not from your own hands.

2. Personal guarantees

Commercial landlords, SBA lenders, equipment lessors, and trade creditors routinely require a personal guarantee. Every one you sign is a hole you have drilled in your own container, voluntarily. Read the signature page. Negotiate caps, sunsets, and carve-outs where you have leverage. If a guarantee is unavoidable, at least know it is there.

3. Payroll taxes and other trust-fund obligations

Under IRC § 6672, a responsible person who willfully fails to remit withheld payroll taxes is personally liable for the trust fund recovery penalty. The LLC is irrelevant here. If cash gets tight, pay the payroll taxes first — this is the debt that follows you personally through a bankruptcy.

4. Professional malpractice

Licensed professionals remain personally responsible for their own professional negligence regardless of entity form. This is why professional liability insurance exists and why an entity is no substitute for it.

5. Unpaid wages

New Hampshire’s wage payment statute, RSA 275, and its federal counterparts reach individuals with control over pay decisions in defined circumstances. Do not assume the entity absorbs wage claims.

6. Veil piercing — usually self-inflicted

New Hampshire courts will disregard an entity where an owner has used it to promote injustice or fraud, or has so disregarded its separateness that the entity is merely the owner’s alter ego. The facts that produce this outcome are almost always mundane:

•    Paying personal expenses from the business account, or vice versa.

•    No operating agreement and no records of significant decisions.

•    Undercapitalization — no meaningful assets and no insurance for foreseeable risks.

•    Contracts, invoices, leases, and signs that use your personal name rather than the LLC’s.

•    Letting the annual report lapse so the LLC is not in good standing.

None of that is exotic. It is bookkeeping and discipline, and it is entirely within your control.

7. Signature-block sloppiness

This is the most common and most avoidable error we see. If you sign a contract “Jane Smith” instead of “Smith Contracting LLC, by Jane Smith, Member,” you have given the other side a serious argument that you contracted personally. Every contract, every lease, every credit application. Every time.

8. Pre-formation obligations

Contracts you signed before the LLC existed are yours. Forming the entity afterward does not retroactively transfer them. If you have been operating as a sole proprietor, existing agreements need to be assigned or novated — which requires the other party’s cooperation.

9. The absence of insurance

An LLC allocates risk. Insurance pays claims. General liability, professional liability or errors and omissions, commercial auto, property, cyber, and workers’ compensation are what actually stand between a bad day and a closed business. An LLC with no insurance and no assets protects you personally while the business simply ceases to exist.

10. Single-member limitations

New Hampshire, like most states, makes the charging order the primary creditor remedy against a member’s LLC interest. That protection is meaningfully stronger in a multi-member LLC, where a creditor’s interference would prejudice innocent co-members. Owners of single-member LLCs should not over-rely on charging order protection.

The annual maintenance checklist

•    File the annual report between January 1 and April 1. $100. Set a calendar reminder for January 15.

•    Keep the registered agent and address current with the Secretary of State.

•    Keep business and personal funds strictly separate, all year, without exception.

•    Document significant decisions — admitting a member, taking on debt, major contracts, distributions.

•    Update the operating agreement when ownership or management changes. An operating agreement that no longer describes reality is worse than none.

•    Review insurance annually against how the business has actually changed.

•    Confirm every contract signature block names the LLC.

Bottom line

Filing a Certificate of Formation costs $100 and takes twenty minutes. Making the LLC do what you hired it to do is an ongoing practice: an operating agreement that reflects your real deal, clean separation of funds, insurance sized to your actual risk, disciplined signing, and an annual report filed on time.

The businesses that get hurt are almost never the ones that filed the wrong form. They are the ones that filed the right form and then behaved as though nothing had changed.

Form it right, or fix what is already there

A.A. Archambault Law, PLLC forms New Hampshire LLCs, drafts and repairs operating agreements, and reviews contracts and guarantees for small businesses in Hopkinton, Concord, Bow, Henniker, and across New Hampshire. Call (603) 527-5101 or contact us through this website.

Disclaimer

This article is provided for general informational purposes only and does not constitute legal advice, nor is it a substitute for advice from a licensed attorney. Reading this article, or contacting the firm through our website, does not create an attorney-client relationship with A.A. Archambault Law, PLLC. New Hampshire law changes, and the way the law applies depends on the particular facts of each situation. No result is guaranteed in any matter. Before you act or decline to act on anything discussed here, consult a New Hampshire attorney about your own circumstances. Statutory citations, dollar figures, and filing fees are stated as of August 2026 and should be verified against current sources.