‹ Maine Filing Guide · All Penalties
Operating in Maine without a certificate of authority can trigger a civil penalty under state statute and bar your LLC from Maine courts. See the consequences and next steps below.
Maine charges a foreign LLC a civil penalty of $500 for each year, or part of a year, it does business without registering. The Attorney General collects it in court, and the court can also, or instead, order the LLC to stop doing business in Maine until it pays and registers. Until it registers, the LLC cannot sue in Maine to collect its debts, and a court can pause any case it brings. Contracts stay valid and owners are not personally liable.
| What's at stake | If you don't register | Severity |
|---|---|---|
| Civil penalty | $500 per year of unauthorized transacting (entity). Registering now does not necessarily remove a penalty for earlier activity.Checked Sep 28, 2026 · legislature.maine.gov | High |
| Back fees on cure | Standard registration fees apply on cure. The statute does not specify a separate retroactive assessment, but the state may still collect missed report fees. | Medium |
| Right to sue in state court | Closed for debt collection. You cannot sue to collect a debt in state court until you register. 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 | Possible. Maine imposes corporate income tax (graduated, 3.5-8.93%) on LLCs taxed as corporations. LLCs taxed as partnerships or disregarded entities pass through to members. Sales tax (5.5%) and other state taxes apply under separate Maine Revenue Services rules. | 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 Maine Secretary of State for the standard filing fee. A wrong form version, a missing certificate of good standing from your home state, 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$250 + $125 = $375, the state fee plus a registered agent for the year
Have Northwest file it$250 + $225 = $475, 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 Maine ↗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 Maine 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 Maine.
Learn what counts as “doing business” and which activities trigger the foreign qualification requirement.
See what Maine calls it, the state fee, and how to order it for a foreign registration.
This page provides general information based on publicly available Maine 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 Maine legislature before relying on the information here. If you are facing enforcement action or a pending lawsuit, consult a Maine business attorney.