Forming a Maine corporation involves more than submitting a simple state form. The choices you make about the corporation’s name, clerk, shares, and management structure shape how the business operates after approval. This guide explains the filing process, current state costs, and the practical steps needed to establish and maintain a domestic for-profit corporation in Maine.
Key takeaways
- Forming a domestic for-profit corporation in Maine requires filing Form MBCA-6, Articles of Incorporation, with the Secretary of State. The standard state filing fee is $145.
- Every Maine corporation must maintain a clerk in the state. A noncommercial clerk must be a natural person who resides in Maine, while a commercial clerk must be listed with the Secretary of State.
- A corporation’s name must be distinguishable from names already on file, but Maine does not require it to include “corporation,” “incorporated,” or a similar designator.
- Maine does not currently offer online filing for new domestic business corporations. Standard processing typically takes 40 to 55 business days, although expedited service is available for an additional fee.
- After approval, the corporation must complete its organizational work, including adopting bylaws, appointing officers, issuing shares, and separating business finances. Annual reports are due by June 1 beginning in the calendar year after formation.
How to incorporate in Maine
Maine’s formation process is straightforward, but several decisions made before filing can affect how the corporation is governed and maintained. Take time to confirm the name, agent, ownership structure, and filing details to prevent delays and make the post-formation work easier.
Step 1: Search for and choose your Maine corporation name
Before you file anything, you need a name that meets Maine's legal requirements. Use the Maine Secretary of State's corporate search tool at maine.gov or LegalZoom's Maine business name search tool below to check if another entity is using a name identical to or similar to the one you want. Enter the distinctive part of your name without the corporate designator or punctuation.
Free Maine Business Name Check
Starting a business? Use our free name check tool to check your business name against business records in the state of Maine.
By clicking "Check Availability," I agree to LegalZoom's Terms of Use. This search is a preliminary check of state databases and does not include variations or trademarks. Results do not guarantee name availability or compliance with legal requirements.
There are a few rules for what your Maine corporation can be named:
- The name must be distinguishable. Maine requires a corporate name to be distinguishable from the name of any corporation, nonprofit, LLC, limited liability partnership, or limited partnership incorporated, organized, or authorized to transact business in the state. Words such as “corporation,” “company,” and “incorporated” generally do not make an otherwise identical name distinguishable.
- The name cannot be obscene or imply a false purpose. A name may not imply the corporation is organized for a purpose other than one permitted under Maine law. The Secretary of State may also refuse names consisting of obscene language, names that falsely suggest association with public institutions, or names implying government agency status or licensed professional services without meeting applicable licensing requirements.
For a full list of requirements, common mistakes, and best practices, read our comprehensive guide to Maine business names.
Once you’ve found your corporation’s name, you can reserve it by downloading the form. Reservations cost $20 and last for 120 days. After 120 days, you'll need to submit a new application and pay the fee again.
Step 2: Appoint a Maine clerk
Maine corporations are required to designate a clerk. This role receives service of any process, notice, or demand required or permitted by law. Lawsuits, subpoenas, tax notices, and Secretary of State correspondence all flow through this person or company first.
Note: The Secretary of State uses the term "clerk" or "commercial clerk" where LLCs use "registered agent." If you search the Maine Secretary of State's online business registry and see a "clerk" listed for a corporation, that person performs the same function as a registered agent for an LLC.
A noncommercial clerk must be a natural person who resides in Maine. The filing must include the clerk’s physical location in Maine, and a P.O. box alone does not satisfy the form’s address requirement. Commercial clerks are separately listed with the Secretary of State and provide a Maine business address for service of process.
There are two types of clerk:
- Commercial clerks. These are individuals or business entities listed with the Secretary of State that serve represented entities professionally.
- Noncommercial clerks. This is a human Maine resident who is not registered as a commercial clerk. A director, officer, or another qualifying individual may serve in this role.
Most first-time incorporators either appoint themselves or a director as clerk or else hire a professional registered agent service. The professional option keeps your personal address off public records and ensures someone is always available to receive legal documents.
You'll list your clerk's name and address directly in your articles of incorporation. For a deeper look at eligibility rules and privacy considerations, see the full guide to Maine clerk and registered agent requirements.
Step 3: Prepare your Maine articles of incorporation
Form MBCA-6 officially establishes your corporation in Maine. Maine also requires a completed Customer Contact Cover Letter submitted alongside it. They go together to the Bureau of Corporations, Elections and Commissions.
- Corporation name. Enter the exact name you confirmed as available, including punctuation and spacing, exactly as you want it to appear on the corporation’s charter.
- Professional corporation election. Check this box only if the corporation is being formed under 13 MRSA chapter 22-A to provide professional services. If so, the name must contain “chartered,” “professional corporation,” “professional association,” or “service corporation,” or the abbreviation “P.C.,” “P.A.,” or “S.C.”
- Benefit corporation election. Check this box only if the corporation is electing benefit corporation status. This election is optional and requires the minimum status vote described in 13-C MRSA §1802(7).
- Clerk information and consent. Select either a commercial or noncommercial clerk. For a commercial clerk, enter the CRA public number and name; for a noncommercial clerk, enter the Maine-resident individual’s name, physical location, and mailing address if different. Confirm the clerk’s consent before filing.
- Authorized shares. Choose either one class of shares and state the number authorized, or two or more classes or series and attach the information required. Authorized shares represent the maximum number the corporation may issue.
- Management structure. Choose whether the corporation will have a board of directors or will have no directors and be managed by shareholders.
- Optional provisions. The form allows corporations with directors to set director-number limits, limit director monetary liability where permitted, provide indemnification, elect preemptive rights, and attach additional provisions.
- Incorporators. Identify the incorporator who signs the articles and attach the names and addresses of any additional incorporators.
- Cover letter requirement. Include a cover letter with the corporation’s name and filing type, as well as a contact name and telephone number or email address. A blank or incomplete cover letter is one of the most common reasons filings get returned.
Step 4: File your articles of incorporation with the Maine Secretary of State
Maine accepts articles of incorporation by mail and in-person drop-off at the Bureau of Corporations, Elections and Commissions in Augusta. There's currently no online filing option for new domestic business corporation formations.
To send via USPS:
Department of the Secretary of State
Corporations, UCC and Commissions
101 State House Station
Augusta, ME 04333-0101
To deliver in person or send via FedEx or UPS:
Department of the Secretary of State
Corporations, UCC and Commissions
6 E. Chestnut Street, 5th Floor
Augusta, Maine 04330
Note that these addresses are different. The USPS address is a State House Station number, not a street address. Couriers and commercial mail services can't deliver to it.
When you submit, make sure you include these three things:
- Completed Form MBCA-6, signed and dated
- Customer Contact Cover Letter with corporation name, filing type, and contact name plus phone or email
- Payment by check or money order payable to the Maine Secretary of State, or a completed credit card voucher
| Filing Method | State Fee | Processing Time |
|---|---|---|
| Standard (mail or in-person) | $145 | 40–55 business days |
| Expedited: 24-hour service | + $50 | Up to five business days (including transit time) |
| Expedited: Same-day service | + $100 | Same business day (if received by 10 a.m.) |
After filing: What to look for
If the Bureau finds an error, whether that's a missing signature, incomplete cover letter, or noncompliant name, the filing will be returned to the contact listed in your cover letter. You'll need to correct and refile, which restarts the processing clock.
Once approved, your Maine corporation officially exists as a legal entity, and you can confirm its existence using the corporate search tool on the Secretary of State's website. Keep the stamped articles and state confirmation with your records.
What to do after your Maine corporation is approved
Getting your corporation approved is only the first step. There are still things you’ll need to do after the Secretary of State approves your filing.
Hold your initial organizational meeting and adopt bylaws
An organizational meeting must be held before or after incorporation. If initial directors are named in the articles, those directors hold the meeting to appoint officers, adopt bylaws, and carry on any other business. If no directors were named, the incorporators hold the meeting and elect directors. Maine law also allows incorporators to act without a physical meeting, as long as all incorporators sign written consents describing the action taken.
During the meeting, the corporation should authorize the opening of corporate bank accounts, approve initial contracts, and prepare written minutes. Maine corporations must keep a copy of all records, including meeting minutes, at the principal or registered office.
Note: Maine requires all corporations to adopt bylaws. The bylaws are not filed with the state, but must be retained in corporate records.
Get a federal EIN
Your corporation needs a federal employer identification number (EIN) before it can open a business bank account, hire employees, or file federal and state taxes. The online application is free, takes about 15 minutes, and typically issues your EIN immediately. If you want someone else to handle the paperwork, LegalZoom can file on your behalf.
Issue stock to shareholders
Issuing stock formalizes each founder's ownership stake. Record each issuance in your stock ledger: who owns how many shares, at what price, and as of what date. Keep this record current to help maintain the separation between the corporation and its owners that makes the corporate liability shield meaningful.
Open a business bank account
Open a dedicated corporate bank account once you have your EIN and approved articles. Most banks will ask for your EIN, stamped articles, bylaws, and a corporate resolution authorizing the account. Keeping corporate and personal finances strictly separate is essential for preserving liability protection.
Register for Maine state taxes
Maine corporations are subject to state corporate income tax and may have additional obligations depending on business activities. If your corporation will sell taxable goods or services, you'll need a Maine sales tax registration. If you'll have employees, register for Maine income tax withholding and unemployment insurance. Register through Maine Revenue Services. If you’re unsure what applies, it can be beneficial to speak with a Maine accountant.
Maine corporation annual reports and ongoing compliance
Maine corporations must file an annual report each year updating the state's records with its current clerk, principal office address, and officer and director information. No financial disclosures are required.
The Maine annual report deadline is between January 1 and June 1 each year. There's no grace period to avoid fees, and the fee is $85. You can file online through the Maine Secretary of State's website or by mail. Online filing is faster and provides immediate confirmation. A $50 late penalty applies if you miss June 1, bringing the total to $135.
If you don’t file within 60 days after the due date, the Secretary of State may begin proceedings to administratively dissolve your business. Reinstatement requires filing an application, paying all overdue fees and penalties, and meeting any other conditions imposed.
How LegalZoom can help you start your Maine corporation
LegalZoom’s corporation formation services make filing all the necessary paperwork with the state easier. When you work with LegalZoom, you can:
- Get help preparing and filing your Maine formation documents
- Reduce the time you spend working through state paperwork and filing requirements.
- Obtain an EIN
- Identify potential business license requirements
- Appoint a clerk to receive official documents on the corporation’s behalf
After formation, LegalZoom’s compliance management services can help you prepare and submit required state reports and stay aware of upcoming deadlines. These services let you choose how much of the formation and compliance process you want to handle yourself while keeping support available for the administrative work.
Maine corporation FAQs
Does Maine require a business license?
Maine doesn't have a single statewide general business license that applies to every corporation. However, many industries and professions require state licenses or permits, and cities or towns may impose additional local requirements. You can identify likely obligations through Maine’s Business Answers program or LegalZoom's business license service.
Can one person form a corporation in Maine?
Yes. One person can generally serve as the incorporator, sole shareholder, director, and officer of a Maine corporation. The corporation must still follow the same filing, recordkeeping, and annual compliance requirements that apply to corporations with multiple owners.
Can I be my own registered agent or clerk?
Yes, you may serve as your corporation’s noncommercial clerk if you are a natural person who resides in Maine. The filing must include your physical location in Maine, and that information becomes part of the public filing. A corporation may instead appoint a commercial clerk listed with the Secretary of State.
Can I file Maine articles of incorporation online?
Maine currently requires articles of incorporation for a new domestic business corporation to be submitted by mail or delivered in person. The state does not offer online formation filing for this entity type. After formation, annual reports can be filed online.
When is the first annual report due?
The first annual report is due between January 1 and June 1 of the calendar year after the corporation is formed. For example, a corporation formed at any point in 2026 would file its first report by June 1, 2027.
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