‹ New Hampshire Filing Guide · All Penalties
Operating in New Hampshire without a certificate of authority can bar your LLC from New Hampshire courts and create back-fee exposure. See the consequences and next steps below.
New Hampshire doesn't charge a flat civil penalty for unregistered foreign LLCs, but the LLC is liable to the state for all fees that would have been imposed had it duly registered, plus all penalties imposed by the LLC act. The Attorney General brings recovery proceedings under RSA 304-C:180(IV). You also can't maintain any action in New Hampshire courts until you register AND pay all back fees for the unregistered period. Contracts and personal liability are preserved.
| What's at stake | If you don't register | Severity |
|---|---|---|
| Civil penalty | No flat civil penalty in the statute, but this does not mean free. Other filing or tax costs may apply, along with the loss of court access (see below). For an LLC trying to enforce a contract or collect a debt, the closed-door rule is often more expensive than any flat fine would be. | Medium |
| Back fees on cure | You owe every fee and tax that would have been due if you had registered on time. Applicable charges include registration fees and annual report fees, following each charge's own filing schedule. A one-time registration fee is not charged again for every unregistered year. | High |
| Right to sue in state court | Closed. You cannot bring or maintain any lawsuit in state court until you register. If you need to sue a customer, a partner, or a vendor, you have to register first. You can still defend yourself if someone sues you. | High |
| Contract validity | Contracts generally remain valid, but registration may be required before you can sue to enforce them. | Low |
| Personal liability | Your personal assets are still protected by the LLC. Failing to register does not by itself pierce the corporate veil. Other liability theories like veil-piercing, personal guarantees, and fraud are unaffected. | Low |
| State tax exposure | Yes. New Hampshire imposes the Business Profits Tax (7.5%) on LLCs with gross business income above $109,000 for tax periods beginning on or after January 1, 2025. The threshold was $103,000 for periods beginning in 2023 and 2024, and it is adjusted biennially rather than annually, so the same figure carries across a two-year span. The Business Enterprise Tax (0.55%) applies to enterprises with gross receipts above $298,000 or an enterprise value tax base above $298,000 for those same periods, on the same biennial adjustment. Both apply to LLCs regardless of how they are taxed federally. New Hampshire has no state income tax on wages or salaries, and its Interest and Dividends tax was repealed for tax periods beginning on or after January 1, 2025. Verify with the NH Department of Revenue Administration. | Medium |
| How it gets enforced | The Attorney General can bring enforcement proceedings under the cited statute. Timing and outcomes depend on the case. | N/A |
Here's how to fix it before any of this catches up to you.
You can file the foreign qualification yourself directly with the New Hampshire Secretary of State for the standard filing fee. A wrong form version or a name conflict with an existing entity can delay approval. Check the form and required documents before submitting. The consequences of remaining unregistered are described above; they do not all accrue weekly.
File it yourself$100 + $125 = $225, the state fee plus a registered agent for the year
Have Northwest file it$100 + $225 = $325, the state fee plus the service, one year of registered agent included
These totals cover registration and the listed service only. Back fees, penalties, taxes and required attachments are extra. The DIY example includes a paid agent. State fees paid by card through Northwest carry a 2.7% card charge. Both routes leave you with the same registered agent obligation from year two.
Want help with the paperwork? Northwest can prepare and submit your foreign registration and serve as your registered agent. Hiring a service does not erase overdue fees, taxes or penalties.
Have Northwest register your LLC in New Hampshire ↗Other options
Comparing services first? Read our full Northwest Registered Agent review and Harbor Compliance review for pricing, renewal behavior, and what each is best at.
Filing yourself anyway? See the New Hampshire foreign LLC registration guide for the form, fee, and step-by-step process.
Answer 3 questions to find out if your LLC needs to register in other states.
See the form, fee, and step-by-step process for changing your registered agent in New Hampshire.
Learn what counts as “doing business” and which activities trigger the foreign qualification requirement.
See what New Hampshire calls it, the state fee, and how to order it for a foreign registration.
This page provides general information based on publicly available New Hampshire statutes. It is not legal advice and is not a substitute for advice from a licensed attorney about a specific situation. Statutes change. Court interpretations vary by case. Verify current statute text with the New Hampshire legislature before relying on the information here. If you are facing enforcement action or a pending lawsuit, consult a New Hampshire business attorney.