What Is an LLC in Maine?
A limited liability company formed under Maine law is a distinct legal entity that separates the personal assets of its owners from the obligations of the business. The governing statute, the Maine Limited Liability Company Act (31 M.R.S. §§ 1501–1693), permits one or more persons to organize an LLC for any lawful purpose, whether or not for profit, and provides that the entity has perpetual duration by default.
The hallmark of the LLC is limited liability: under 31 M.R.S. § 1544, a member “is not liable, solely by reason of being a member, under a judgment, decree, or order of a court, or in any other manner, for a debt, obligation or liability of the limited liability company.” Members share management authority unless they designate one or more managers, and the LLC receives pass-through federal tax treatment — a single-member LLC is disregarded for income tax purposes, while a multi-member LLC is taxed as a partnership, unless the members elect corporate classification by filing IRS Form 8832. Maine imposes no franchise tax and no entity-level income tax on LLCs retaining pass-through status, though every domestic LLC must file an annual report to remain in good standing.
Maine LLC Name Search
The name chosen for a Maine LLC must be distinguishable in the Secretary of State’s records from the names of all other entities on file, and it must include an approved designator. 31 M.R.S. § 1508 lists the permissible designators: “Limited Liability Company,” “Limited Company,” “L.L.C.,” “LLC,” “L.C.,” or “LC.” The statute also permits “Ltd.” as an abbreviation for “Limited” and “Co.” for “Company.” A low-profit limited liability company uses the designation “L3C” or “l3c” instead.
When the Secretary of State evaluates distinguishability, differences limited to punctuation, capitalization, or entity-type words such as “corporation” or “company” are disregarded. Certain financial terms, “bank,” “savings,” “trust,” “credit union,” and their derivatives, are restricted under 9-B M.R.S. § 241 and cannot appear in an entity’s business name without prior approval from the Bureau of Financial Institutions.
An organizer can verify whether a proposed name is already in use by running a search through the Corporate Search tool on the Secretary of State’s Interactive Corporate Services portal. Because the search results reflect only existing records and the filing authority makes the final determination upon review, passing the search does not guarantee acceptance.
Name Reservation: To hold a name while preparing the certificate of formation, an organizer may file Form MLLC-1 — Application for Reservation of Name and pay the $20.00 fee. The reservation lasts 120 days and cannot be renewed, although the same name may be reserved again after the reservation period expires (31 M.R.S. § 1509).
Choosing an LLC Registered Agent in Maine
Maine law requires every domestic LLC to have and continuously maintain a registered agent in the state (31 M.R.S. § 1661). The registered agent is the person or entity authorized to accept service of process, official notices, and government correspondence directed to the LLC. Maine’s registered agent framework is set out in the Model Registered Agents Act, codified at Title 5, chapter 6-A, which recognizes two categories of agents.
A commercial registered agent is an individual or entity that has filed a listing with the Secretary of State under 5 M.R.S. § 106 and appears on a publicly searchable registry. A noncommercial registered agent is an individual who resides in Maine or a domestic or foreign entity authorized to transact business in Maine that has not filed a commercial listing. In either case, the agent must maintain a physical street address in the state, not a P.O. Box or virtual office, where documents can be hand-delivered during normal business hours.
The certificate of formation must include the agent’s name and address, and filing it constitutes the LLC’s affirmation that the agent has consented to the appointment. 5 M.R.S. § 105 states that “the appointment of a clerk or a registered agent … is an affirmation by the represented entity that the agent has consented to serve as such.” An LLC that fails to maintain a registered agent risks administrative dissolution under 31 M.R.S. § 1591, which can strip the entity of good-standing status and bar it from maintaining lawsuits in Maine courts.
LLC Filing Requirements in Maine
An LLC is officially formed in Maine when the Secretary of State files the entity’s certificate of formation—not when the document is mailed or delivered, but when it is actually accepted and endorsed. The formation statute, 31 M.R.S. § 1531, requires one or more authorized persons to execute and deliver the certificate, and it further requires that a limited liability company agreement “must be entered into or otherwise existing” at or around the time of formation. The official form is Form MLLC-6 — Certificate of Formation, and the filing fee is $175.00 (31 M.R.S. § 1680).
The certificate must set forth:
- The LLC’s name, including a required designator
- The name and address of the LLC’s registered agent (commercial or noncommercial)
- Whether the LLC has a filing date of the current date or a specified delayed effective date
- The signature of at least one authorized person
The form also provides an optional designation for low-profit limited liability companies (L3C) and permits the organizer to include a statement of authority under 31 M.R.S. § 1542, which can define the authority of specific members or managers to bind the LLC in real property transactions and other dealings.
Maine does not currently offer online filing for the initial certificate of formation. The completed form and filing fee must be submitted by mail or delivered in person to the Division of Corporations.
- By Mail (USPS): Department of the Secretary of State, Corporations, UCC and Commissions, 101 State House Station, Augusta, ME 04333-0101
- By Mail (FedEx/UPS): Department of the Secretary of State, Corporations, UCC and Commissions, 6 E. Chestnut Street, 5th Floor, Augusta, ME 04330
- In Person: The Division of Corporations office at 6 E. Chestnut Street, 5th Floor, Augusta, ME 04330 is open Monday through Friday, 8:00 a.m. to 5:00 p.m.
Payment may be made by check or money order payable to the Maine Secretary of State or by credit card using the fillable Credit Card Payment Voucher included with the submission. Standard processing currently takes 40 to 55 business days. Two expedited tiers are available: 24-hour turnaround for an additional $50.00, or same-business-day processing for an additional $100.00.
A delayed effective date may be specified in the certificate, but it cannot fall more than 90 days after the Secretary of State files the document (31 M.R.S. § 1674). If no effective date is specified, the LLC exists from the moment the certificate is endorsed.
Note: Every domestic LLC must file its first annual report between January 1 and June 1 of the calendar year following the year of formation. The annual report fee is $85.00, and reports can be submitted through the Annual Reports Online portal. A $50.00 late-filing penalty applies if the report is not delivered by the June 1 deadline.
How Much Does it Cost to Create an LLC in Maine?
| Cost | Mandatory or Optional | Amount | When It Applies | Official Source |
| Certificate of Formation (Form MLLC-6) | Mandatory | $175.00 | At formation | 31 M.R.S. § 1680 — Filing and Copying Fees |
| Name Reservation (Form MLLC-1) | Optional | $20.00 | Before formation, to hold a name for 120 days | Maine Secretary of State — LLC Forms and Fees |
| 24-Hour Expedited Processing | Optional | $50.00 (in addition to filing fee) | At filing, for next-business-day turnaround | Maine Secretary of State — Miscellaneous Services and Fees |
| Immediate (Same-Day) Expedited Processing | Optional | $100.00 (in addition to filing fee) | At filing, for same-business-day turnaround | Maine Secretary of State — Miscellaneous Services and Fees |
| Annual Report — Domestic LLC | Mandatory | $85.00 | Between January 1 and June 1 of the year after the calendar year of formation, then annually | Maine Secretary of State — Filing Requirement Reminders |
| Late Filing Penalty (Annual Report) | Conditional | $50.00 | If the annual report is not filed by June 1 | 31 M.R.S. § 1680 |
| Certificate of Existence (Good Standing) | Optional | $30.00 | When proof of good standing is needed | Maine Secretary of State — Miscellaneous Services and Fees |
| Change of Registered Agent (Form CLKRA-3) | Optional | $35.00 | If the LLC changes its registered agent after formation | Maine Secretary of State — LLC Forms and Fees |
| Federal EIN | Mandatory (if employees or elected corporate classification) / Recommended otherwise | $0 | After formation | IRS — Get an Employer Identification Number |
LLC Operating Agreement in Maine
Maine is one of a small number of states that actually requires an LLC to have what the statute calls a limited liability company agreement. 31 M.R.S. § 1531 lists entry into or existence of such an agreement as one of the three conditions for forming an LLC, alongside executing a certificate of formation and having at least one member. The statute defines the term broadly to encompass “any agreement, whether referred to as a limited liability company agreement, operating agreement, or otherwise, written, oral, or implied” (31 M.R.S. § 1502). The agreement is never filed with the Secretary of State; it remains an internal document held by the LLC and its members.
The limited liability company agreement is the primary instrument through which members define how the business operates. Under 31 M.R.S. § 1521, it “governs relations among the members as members and between the members and the limited liability company.” Maine’s statute grants significant contractual latitude: fiduciary duties may be expanded, restricted, or even eliminated, so long as the implied contractual covenant of good faith and fair dealing is not negated. Any issue the agreement does not address falls to the default provisions of the LLC Act.
Those defaults are worth understanding. Management authority vests in all members and is exercised by majority vote for ordinary-course matters, with unanimous consent required for extraordinary actions such as amending the agreement, approving a merger, or taking any act outside the ordinary course of business (31 M.R.S. § 1556). Distributions are allocated based on the agreed value of each member’s contributions as reflected in the LLC’s records (31 M.R.S. § 1554). A transferee who receives a membership interest acquires only the economic right to distributions, not any management or voting rights, unless admitted as a full member by consent of the existing members (31 M.R.S. § 1572).
Even a sole-member LLC should reduce its operating agreement to writing. A written document reinforces the separation between the member’s personal finances and the LLC’s assets, which is the foundation of the liability shield that makes the LLC form valuable.
How to Get an EIN for an LLC in Maine
A federal Employer Identification Number is a nine-digit number the Internal Revenue Service assigns to identify the LLC for tax purposes. An EIN is mandatory for any LLC that will have employees, that elects to be taxed as a corporation, or that files certain federal excise returns. A single-member LLC with no employees is not legally required to obtain one, but banks routinely require an EIN to open a business deposit account, and having one avoids using the sole member’s Social Security number on business documents.
The IRS EIN Online Application is the quickest route—the number is issued immediately at the end of the session. The online tool is available Monday through Friday, 7:00 a.m. to 10:00 p.m. Eastern Time, and requires a valid Taxpayer Identification Number (SSN or ITIN) for the LLC’s responsible party. The responsible party is the individual who owns, controls, or exercises ultimate authority over the LLC and its funds. For a single-member LLC, the sole member typically serves in that role.
Alternatively, an applicant may complete IRS Form SS-4 and submit it by fax (expect the EIN in roughly four business days) or by mail (approximately four to five weeks). There is no charge for an EIN through the IRS, regardless of the application method.
Note: The IRS online EIN application is available only during the hours listed above. Attempts to access the tool outside those hours will be redirected.
Registering for State Taxes in Maine
Maine does not impose any entity-level franchise tax, gross receipts tax, or minimum LLC tax on limited liability companies that retain their default federal classification as a pass-through entity. Instead, each member reports the member’s share of the LLC’s income on an individual Maine income tax return. Only if an LLC affirmatively elects C-corporation status through IRS Form 8832 does it become subject to Maine’s graduated corporate income tax, which ranges from 3.5% on the first $350,000 of taxable income to 8.93% on income exceeding $3,500,000.
An LLC with any nonresident members that earns Maine-source income faces additional obligations. The entity must file Form 941P-ME and may be required to withhold Maine income tax from the quarterly earnings attributable to those nonresident members, or obtain a withholding exemption, or elect to file a composite return on the nonresidents’ behalf.
If the LLC sells tangible personal property or taxable services in Maine, it must register for a sales and use tax account. Maine’s general sales tax rate is 5.5%, and a separate service provider tax applies to certain enumerated services. Registration for sales tax, service provider tax, and employer withholding is handled through the Maine Tax Portal by selecting “Register a New Business” on the portal’s homepage.
| Tax Type | Agency | Registration Method | Fee |
| Individual Income Tax (member-level) | Maine Revenue Services | Members file Form 1040ME individually | — |
| Sales and Use Tax / Service Provider Tax | Maine Revenue Services | Maine Tax Portal — Register a New Business | $0 |
| Income Tax Withholding (employers) | Maine Revenue Services | Maine Tax Portal — Register a New Business | $0 |
| Pass-Through Withholding (nonresident members) | Maine Revenue Services | Form 941P-ME | — |
Registering as an Employer in Maine
An LLC that hires employees in Maine must establish accounts with the state for unemployment insurance, income tax withholding, and workers’ compensation coverage. These registrations should be completed before or promptly after the first payroll date.
Unemployment Insurance: The Maine Department of Labor administers unemployment insurance through its Bureau of Unemployment Insurance Tax. Employers pay premiums on the first $12,000 in gross wages per employee per calendar year. A new employer can register through the ReEmployME Employer Portal by selecting “Register a new business” or by completing and mailing the paper registration form available on the Department of Labor — Employer Services page.
Income Tax Withholding: Because Maine levies a personal income tax, every employer must register to withhold state income tax from employees’ wages. This registration is completed through the Maine Tax Portal. Maine Revenue Services processes the quarterly withholding return (Form 941ME) alongside the Unemployment Contributions Report (Form ME UC-1).
Workers’ Compensation Insurance: Maine law requires virtually all employers, public and private, to carry workers’ compensation coverage. An LLC with even one employee must obtain a policy from a licensed property and casualty insurance producer or join a self-insured group. The Maine Workers’ Compensation Board oversees compliance and provides a coverage verification tool.
New Hire Reporting: Federal and Maine law require employers to report every newly hired or rehired individual within seven days of the hire date. Reports are filed through the Maine New Hire Reporting Center online portal, by fax, or by electronic file transfer.
| Obligation | Agency | Registration Method |
| Unemployment Insurance | Maine Department of Labor | ReEmployME Employer Portal or paper form via Employer Services |
| State Income Tax Withholding | Maine Revenue Services | Maine Tax Portal — Register a New Business |
| Workers’ Compensation Insurance | Licensed insurer / Maine WCB | Obtain policy from licensed producer; verify coverage at Maine WCB |
| New Hire Reporting | Maine DHHS | Maine New Hire Reporting Center |
The LLC must also satisfy federal employer obligations: filing IRS Form 941 (Employer’s Quarterly Federal Tax Return) each quarter, paying FUTA taxes under the Federal Unemployment Tax Act, and completing Form I-9 (Employment Eligibility Verification) for each new hire.