Forming a limited liability company is comparatively easier than other structures like corporations. If you plan to start your business in Maine, it is always better to have an LLC. You can start your LLC in Maine in two ways. Either you can do that yourself, or you can hire an LLC formation service to do the job for you.
On this page, You'll find all the steps that must be taken to ensure that your Maine LLC has been correctly formed. You'll also find the name of the service that fits you the best. These services do not charge any money for LLC formation. A video tutorial is also shared below for those who are not reading type! :)
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How to Start an LLC in MaineAfter Starting Your Maine LLCMaine Foreign LLCMaine LLC Formation ReviewF.A.QsHow to Start an LLC in Maine
An LLC (aka Limited Liability Company) is a hybrid business entity combining a corporation’s characteristics with a partnership or sole proprietorship. It separates your personal assets from your business assets, thus giving you personal asset protection. For an LLC, members' personal assets are not affected by business debts. However, in some cases, if the LLC is sued for business debts, courts might pierce the corporate veil and use the owner's personal assets to meet their corporate liabilities.
If you wish to start an LLC in Maine, you must file your Certificate of Formation with the State and pay a filing fee of $175. While it's the most important step, it's not the only one. There are 4 other crucial steps to follow to get your LLC formed in Maine. Below are all 5 steps that explain everything you need to do to start a Maine LLC in 2026. Let's get started!
Step 0Decide on the Structure and Nature of the Business
Before you start filing your LLC in Maine, you must decide on the structure of your LLC (whether it is a Single-member or a Multi-member LLC). A single-member LLC is a business structure where only one individual runs the company. This type of limited liability company (LLC) provides legal protection to its owner and enables them to operate their business while taking advantage of certain tax benefits. In contrast, a traditional multi-member LLC must have at least two members involved in the company’s management and ownership.
For both types of structures, the process of establishing is the same in Maine. The tax burden might be different if you chose a different tax structure while filing the Certificate of Formation.
LLC vs S-Corp
An LLC is a business structure that has the right to elect any tax structure. Despite having a pass-through tax advantage, many LLCs, for several reasons, elect a different business structure for tax purposes. An S-Corp is one of those business structures that LLCs can elect. The S-Corporation is a type of corporation that is less complicated than a C-Corporation and has vast tax benefits.
With an S-Corp, the LLC can still enjoy a pass-through taxation. However, the federal income tax will be calculated on the basis of the salary of the owner and the return he/she gets on their share of the company. There is no corporate income tax or problem of double taxation in an S-Corp. A single-member or a multi-member LLC can elect an S-Corp tax structure. However, in the case of a multi-member LLC, make sure that the number of members does not exceed 100 to be an S-Corp.
If you have a single-member LLC, electing an S-Corp can save a chunk of tax for you. As a single-member LLC, the owners have to pay about 15.3% self-employment tax. However, if you have an S-Corp tax structure, no SE tax is payable by the LLC. Read more on what tax forms LLCs file.
Step 1Decide on a Name for Your Maine LLC
The first step in forming a limited liability company in Maine is to give a proper name to your LLC. Before you name your business, you must know that the name should be easy to remember, available in the state, and follow all the LLC naming guidelines.
Maine LLC Naming Guidelines
There are a few specific requirements all the LLCs in Maine have to follow while naming their Company. Some of the most important requirements are as follows:
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Your business name should be available, and no other existing business in Maine can have the same name.
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"Limited Liability Company", "LLC", and "L.L.C." - any one of these has to be used as a suffix in your business name.
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You cannot use any name for your business that is confusing or misleading. Terms such as "Treasury", "State Department", "FBI", "CIA", etc. shouldn't be included.
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Terms like "Bank", "University", "Attorney", "Doctor", etc, can be added only after the additional requirements by the Maine State Government are fulfilled.
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(Optional) It's better to name your business something for which your desired domain is available.
| Important Links - | Submit Offline Form to - |
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| Maine Business Entity Search - Online Search Name Reservation Form - PDF Name Availability Standards - Guidelines Maine LLC Name Search - Instructions | Secretary of State Division of Corporations, UCC and Commissions 101 State House Station Augusta, ME 04333 |
Reserve Business Name for Future
If you do not wish to file your LLC right now but want to hold the name you have decided on, then you can reserve your LLC name for 120 days. To keep the name, you must file a name reservation application and pay $20 to reserve your name with the Maine Secretary of State.
Doing Business As (DBA) or Trade Name
Once you have a legal name for your LLC, you can register it. However, it is not mandatory. You can, instead, use DBA, Fictitious Name, or Trade Name. In that case, you must register your name by submitting a Statement of Intention to Transact Business Under an Assumed or Fictitious Name in Maine, along with the filing fee of $125 and $40 for Fictitious Name filing.
Do I have to include LLC in my company email/domain?
It is not legally mandatory to use the word LLC in your domain name or email. If you want, you can use it. However, it is recommended not to use LLC in the domain name. A domain name should be short and easy to remember.
Step 2Assign a Registered Agent in Maine
The second step to forming an LLC in Maine is to appoint a Registered Agent. A registered agent is a person or business entity working on your LLC's behalf. This person or business will receive important tax forms, legal documents, all notices of lawsuits, and other official government correspondence in Maine. Hence, hiring a competent Maine Registered Agent for your LLC is necessary.
Make sure your registered agent has a physical street address. This address will be used to receive any legal documents. Most LLC formation companies also provide registered agent services. Below are two great LLC formation services; even if you buy their cheapest plan (normally $0), you also get registered agent service and other services at a very reasonable price.
- 1-day rush filing (add-on)
- Attorney help (legal plan)
- Established reputation
These two are our top recommendations for LLC service, as they are competent and authorized to conduct business in Maine. Some LLC formation services also offer standalone Maine registered agent services. You can purchase only Registered Agent services without purchasing any other LLC formation services. This standalone service might become handy if you are doing it yourself and don't want to disclose your home address, or you don't want to pierce the corporate veil.
Who Can Be a Registered Agent?
A person above 18 years of age and who has a physical address in the state of Maine can be a Registered Agent. A Registered Agent can be an independent person or a business entity. One is responsible for handling all the legal documents on the LLC's behalf.
Can I Be My Own Registered Agent?
Yes, you can be your own registered agent if you are a resident of the state of Maine and you are above 18 years of age. To become a registered agent, you must have the authority to conduct any type of business in Maine.
Why Shouldn't I be My Own Registered Agent?
There are a few reasons why you shouldn't be your own registered agent. The address of the registered agent is used to communicate with the SOS or for any legal activities. If you are your own registered agent, you might have to upload your personal address to the public forum. Besides, the registered agent must be at the address during business hours. It won't be easy for you, as you also have to take care of other things in your LLC. Hence, it is wiser to appoint a separate entity as your registered agent.
What is Piercing the Corporate Veil in an LLC?
If an LLC is sued in Maine, in some cases, courts might decide to lift the corporate veil, which means the owners of the LLC will be personally liable for their business debts. They might have to forgo their personal assets to repay their business debts. This is called piercing the corporate veil, where personal and business assets are no longer separated. Your personal assets can be protected if you have enough capital and all your LLC documents are properly filed.
Step 3File Certificate of Formation in Maine
The third and most important step in forming a Maine LLC is to file the Certificate of Formation. This Maine Certificate of Formation is a legal document that is required to register your business with the Maine Secretary of State. It costs $175 (by mail) to file your formation certificate in Maine.
The Certificate of Formation includes details like the name of the LLC, the registered agent's name, address, and the company's structure (member-managed or manager-managed). Before hiring employees in your Maine LLC, one should thoroughly know the rules and regulations. Also, if you are expanding your existing business (an LLC) in other states to Maine, then you need to register as a Maine Foreign LLC.
How to File by Mail
If you prefer filing real-life forms for your Maine LLC registration, then you can download the Maine Limited Company Certificate of Formation. Read the form thoroughly and fill it out. It will have to fill in, among others, your name, city, state, zip code, and signature. You may also file in person by visiting the office on business days.
Mail To: Secretary of State
Division of Corporations, UCC, and Commissions
101 State House Station
Augusta, ME 04333-0101
Processing Time: Normally, it takes around 10-15 business days (by mail) to get your LLC formed in Maine. With an additional cost, you can get expedited filing (+$50 for 24-hour, +$100 for immediate). However, the document processing time can be changed due to various factors.
Maine Mail Kit to File an LLC
Maine is the only state that does not have any other mode of filing your LLC, other than by mail. Now, it may seem to be confusing what to put in that envelop. For a filing by mail, a bunch of documents need to be attached. - MLLC - 6 form filled up - Check payable to "Maine Secretary of State" - Cover sheet specifying expedited service level (if paying $50 or $100) - Certified mail advice The envelop should have the address written on it. Make sure to send correct documents without missing anything. Missing a document can lead to cancellation of the filing.
Step 4Create Your Maine LLC Operating Agreement
Moving on to the fourth step, filing your operating agreement. An operating agreement is a document that legally outlines the proprietorship and operating procedures of your LLC. This document is vital as it ensures that all business owners are on the same page regarding how they operate, thus reducing future conflicts.
When it comes to filing a Maine LLC Operating Agreement, the state requires you to have a comprehensive operating agreement (31 M.R.S. §1531(1)(B)). Unlike other states, Maine LLCs must file an operating agreement if you form an LLC in Maine. This document would be useful if you decide to dissolve Maine LLC later.
Step 5Filing a Maine LLC EIN
The Employer Identification Number (aka EIN) is a nine-digit number given by the Internal Revenue Service (IRS) to make it easier to identify the type of business for tax purposes and taxes in general. The EIN is necessary for any active business or any form of business.
For an LLC in Maine, an EIN is required when the LLC hires employees. Apart from that, banking services, tax filings, and many other government documents require an LLC to obtain an EIN in Maine. On the other hand, if your LLC is based in another state (home state) and you are expanding your business in Maine, you must get an EIN to establish a Foreign LLC in Maine.
To obtain an EIN (aka FEIN), one must fill out a form (Online or by mail) and submit it to the IRS. Enter details of your LLC, and finally, complete the form and send it to the address given. You can also get an EIN Assistant to help you with the process.
Mail to: Internal Revenue Service, Attn: EIN Operation, Cincinnati, OH 45999
Fax: (855) 641-6935 | Fee: Free
EIN can be filed online via irs.gov portal. It is instant. It is processed immediately after filing online.
After Starting Your Maine LLC
After forming your LLC, there are still some things that you will need. The most important thing is to separate your business and personal assets. LLCs have limited liability protection that protects your personal assets from business liability. This is called a corporate veil. However, the corporate veil can be lifted or pierced by the court if the LLC is sued. In that case, the owners of the LLC become personally liable for their corporate debts. A few things, like appointing a legit registered agent, having enough capital, and filing all the major documents with the state, can save the LLCs from being pierced through the corporate veil.
BOI Report Filing
According to the Corporate Transparency Act, foreign entities registered to do business in the U.S. must file a BOI report with FinCEN. However, note that as of March 26, 2025, FinCEN issued an interim final rule removing BOI reporting requirements for all domestic U.S. companies and U.S. persons. If your LLC was formed under U.S. law, you are currently exempt from BOI filing obligations — consult the FinCEN BOI page for the latest guidance, as this regulatory area remains subject to change.
Apart from that, there are a few things you need to take note of,
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Get a company business bank account
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Maine does not have a mandatory rule to file business permits & licenses
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Get general liability insurance and professional liability insurance with coverage for employees.
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File a Maine LLC annual report due in June 1 every year. Late fee: $50 additional for filing after June 1.
This page has provided you with steps for LLC formation and filing processes. You now have to remember upcoming filing deadlines and filing fees or filing costs, including fees for late filings, to make sure your LLC is up-to-date.
The LLC formation processing time in Maine is 10-15 business days if filing offline (by mail). No online process is available. Check how long it takes to form an LLC to know about the tentative timelines.
Cost of Maine LLC
LLCs can be formed for less cost. Apart from the mandatory state filing fees, you don't have to bear additional service charges if you do it yourself. The following are the fees and taxes LLCs in Maine must pay to register and run a business in the state. Forming an LLC is no doubt cost-effective compared to other business structures. However, the fees and charges (tax-deductible) that you must pay to the state, such as name reservation fee, name filing fee, LLC filing fee, and Franchise Tax & Sales Tax (If applicable). Here are the main fees and taxes you must pay while forming your limited liability company in Maine,
| Fees/Tax | Amount to be Paid |
|---|---|
| Name Reservation Fee (By mail) | $20 |
| Name Registration Fee (By mail) | $20 |
| Certificate of Formation Fee | $175 |
| LLC Annual Fee | $85 |
| Sales Tax | 5.5% |
In Maine, an LLC name reservation is not mandatory. You can register your LLC name at the time of registering your LLC. If you wish to hold the name for some time without registering your LLC, then you can do that by submitting the form to their office. Your LLC name will be reserved for 120 days without registering your LLC. It can be done by paying $20.
In Maine, an Annual Report has to be produced every year. It costs $85. Also, the State of Maine requires LLCs to pay a Sales Tax of 5.5%. Read our guide on LLC costs in Maine for more information.
Maine Foreign LLC
If you are interested in forming a Foreign LLC in Maine, then you need to file the Certificate of Foreign LLC with the Maine Secretary of State. Foreign LLCs allow you to operate your business in more than one state. Along with the Certificate of Foreign LLC, you need to submit some more documents, like the Certificate of Good Standing, etc., to the Maine SOS to form your foreign LLC in Maine. To know more in detail, check out our guide on Maine Foreign LLC.
Maine LLC Formation Review
Time needed: 5 minutes.
Just to recap, here are the easy steps again when forming an LLC in Maine. Click on the steps in this list to read the full details.
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The first thing you must do is choose a company name, which should be unique, easy to find, and available in the state.
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In Maine, it is mandatory to select a registered agent for your LLC. Get a professional Registered Agent from LLC formation services to get things done hassle-free.
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Filing a formation certificate is necessary when forming an LLC in Maine. Depending on the state, it could be called any of the following: Certificate of Formation, Articles of Organization, or Certificate of Organization.
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An operating agreement is a strict requirement in Maine, so it is important when you start an LLC to avoid future conflicts.
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The Employer Identification Number (EIN), also called Federal Tax Identification Number, serves to identify a business entity like a Social Security number but for a company.
F.A.Qs
Can I file an LLC in Maine by myself?
If you are a resident of Maine, then you can file your LLC by yourself. However, if you're a new to the world of business, it is worth having a professional rather than doing it yourself to handle legal complexities, paperwork, and other documentation.
What is the cost of forming an LLC in Maine in a year?
Apart from the formation fee of $175 (domestic LLC) and $250 (foreign LLC), LLC costs in Maine include $85 for Annual Reports every year. LLCs are liable to pay sales tax of 5.5% every year.
How long does it take to get an LLC in Maine?
It takes 10-15 business days +mailing time to get a Maine LLC if you file via mail. You can expedite the filing by paying additional fee ($50 for 24-hour, $100 for immediate).
How to renew my LLC in Maine?
Every year, all the LLCs have to submit an Annual Report and pay $85 to the Maine Secretary of State and renew the LLC. It is mandatory to renew your LLC every year.
What is the tax structure for an LLC in Maine?
Generally, for LLCs, it is a default tax structure. Once you obtain the EIN, you will get the various tax structure options to select. Sometimes LLCs choose an S Corp to reduce federal tax burdens. Read more on the Maine Classification of LLC Tax.
In Conclusion
When it comes to forming an LLC in Maine, it is much simpler than other business structures. In Maine, starting a small business or a start-up is easy because of its diverse resources. For small budget holders, forming a limited liability company is desirable. The steps explained in this article are generic steps for starting a business in Maine. It is recommended to consult an attorney or service provider.