How to Start an LLC in Maine (2026)
Forming an LLC in Maine costs $175 to file and requires mailing your paperwork to the Secretary of State. This guide walks you through every step, from choosing a name to opening your business bank account.
In This Article
What You'll Learn in This Guide
This guide walks you through every step to legally form a Limited Liability Company (LLC) in Maine — from picking a name to staying compliant year after year. We've kept it practical, current, and free of unnecessary fluff.
Note
Maine LLC formation costs a state fee in state fees. Most founders complete the process in N/A, either DIY or through a formation service starting at $0.
Maine LLC: Quick Facts
Last Verified: Feb 2026- Filing Fee (Online)
- N/A
- Processing Time
- N/A
- Expedited Available
- No
- Annual Report
- $85 (annual)*
- State Income Tax
- Yes
- Sales Tax Rate
- 5.5%
- Filed With
- Department of the Secretary of…**
- Last Verified
- February 21, 2026
* Annual Report: $85, due June 1st each year
** Filed With: Department of the Secretary of State, Division of Corporations, UCC and Commissions
What You Need to Know About Forming an LLC in Maine
A Maine LLC creates a legal wall between your personal assets and your business debts. If someone sues your company or it takes on obligations it can't pay, your home, car, and personal savings stay protected. That separation is the entire point of forming an LLC, and it's especially valuable for first-time founders who are putting personal effort and money on the line.
Maine is one of the few states that does not offer online LLC filing. You'll need to download the Certificate of Formation (Form MLLC-6), fill it out, and mail it in with your $175 fee. Processing takes 35 to 40 business days, so plan ahead. Maine also legally requires every LLC to have an operating agreement in place, which is something many states only recommend.
The full process looks like this: pick a compliant name, designate a registered agent with a Maine address, mail your formation paperwork, get an EIN from the IRS, draft your operating agreement, and open a business bank account. Most founders can handle the entire process in an afternoon of focused work, though you'll wait a few weeks for the state to process your filing.
Choose a Name for Your Maine LLC
Your LLC name must meet Maine's naming rules and be distinguishable from every other business registered in the state. Getting this right first saves you from having your filing rejected.
Maine requires your LLC name to be distinguishable from any other entity already on file with the Secretary of State. You can search existing names using the state's online corporate registry before committing.
Search available names →Maine LLC Naming Requirements
Optional Name Reservation
- Reserve your name for 120 days for a $20 fee
- Search available names at the Maine corporate registry before filing
- Reservation gives you time to prepare your Certificate of Formation without losing the name
State Specific
Maine lets you reserve a business name for 120 days for just $20, which is a longer reservation period than most states offer.
Pro Tip
Search the Maine corporate database before you settle on a name. A quick check now prevents a rejected filing and wasted weeks later.
Choose a Registered Agent in Maine
Every Maine LLC must have a registered agent with a physical street address in the state who can accept legal documents during normal business hours.
Your registered agent is the person or company that receives legal papers, tax notices, and official state correspondence on behalf of your LLC. In Maine, the agent must be either an individual who lives in the state or a business entity authorized to operate in Maine. They must have a physical street address (not a P.O. box) and be available during normal business hours.
Your Three Options
- Be your own registered agent (free, but your address goes on the public record and you must be available during business hours)
- Ask a trusted person in Maine to serve (also free, but they take on a real responsibility)
- Hire a professional registered agent service (typically $50-$300 per year, keeps your personal address private)
Pro Tip
If you work from home, using a professional registered agent service keeps your home address off public records.
File Your Certificate of Formation in Maine
This is the official step that creates your LLC. Maine requires you to mail your Certificate of Formation (Form MLLC-6) to the Secretary of State along with the $175 filing fee.
Download Form MLLC-6 from the Maine Secretary of State's website. The form asks for your LLC's name, registered agent information, the address of your principal office, and whether your LLC will be managed by its members or by designated managers. Fill it out, sign it, and mail it along with a check or money order for $175 payable to the Secretary of State.
$175
Filing Fee
by mail only
35-40 days
Processing Time
standard mail
24 hours
Expedited Option
additional fee
Mail your completed form and payment to: Secretary of State, Division of Corporations, UCC and Commissions, 101 State House Station, Augusta, ME 04333-0101. Consider sending it via certified mail so you have proof of delivery and can track the package.
What to Include in Your Mailing
- Completed and signed Form MLLC-6
- Check or money order for $175 payable to the Secretary of State
- A self-addressed stamped envelope if you want your approved copy mailed back
State Specific
Maine does not offer online filing for LLC formation. All documents must be submitted by mail.
Important
Processing takes 35 to 40 business days by standard mail. If you need your LLC sooner, 24-hour expedited processing is available for an additional fee.
Recommended: ZenBusiness
Beginner-friendly LLC formation with transparent pricing and a free starter option. From $0 + state fees.
Get an EIN for Your Maine LLC
An EIN is a federal tax ID number for your business. You'll need it to open a bank account, hire employees, and file taxes.
Apply for your EIN directly on the IRS website at no cost. The online application takes about 10 minutes and you'll receive your number immediately. You'll need your approved Certificate of Formation before applying, since the IRS asks for details about your LLC.
Apply for your EIN on IRS.gov →Create an Operating Agreement for Your Maine LLC
Maine law requires your LLC to have an operating agreement. This document defines how your business runs, how profits are split, and what happens if a member leaves.
Your operating agreement is an internal document that governs how your LLC operates. You don't file it with the state, but Maine law requires you to have one. It's your rulebook for ownership, decision-making, and what happens during major events like a member wanting to exit or the business dissolving.
Key Sections to Include
State Specific
Unlike many states where operating agreements are just recommended, Maine legally requires every LLC to have one in place.
Pro Tip
Even if you're a single-member LLC, your operating agreement strengthens your liability protection by showing that your business operates as a separate entity from you personally.
Open a Business Bank Account for Your Maine LLC
A separate business bank account keeps your personal and business finances apart. This is essential for maintaining the liability protection your LLC provides.
Once you have your approved Certificate of Formation and your EIN, you can walk into any bank or credit union and open a business checking account. Some banks also let you apply online. Keeping your business finances completely separate from your personal accounts is one of the simplest and most important things you can do to preserve your LLC's legal protections.
What to Bring to the Bank
- Your approved Maine Certificate of Formation
- Your EIN confirmation letter from the IRS
- Your operating agreement
- A valid government-issued photo ID
- An initial deposit (amount varies by bank)
Important
Mixing personal and business funds can undermine your LLC's liability protection. Courts call this "piercing the corporate veil," and it can make you personally responsible for business debts.
Top 3 LLC Formation Services
We've independently reviewed the top LLC formation services in Maine. Here's how they compare.
| Feature | ZenBusiness Best Overall Value | Northwest Registered Agent Best Privacy | Tailor Brands Best for Branding |
|---|---|---|---|
| Starting Price | $0 + state fees | $39 + state fees | $0 + state fees |
| Formation Speed | 1-10 business days | Same-day filing | 2-14 business days |
| Support | Phone, Chat, Email | Lifetime Corporate Guides | Phone, Chat, Email |
| States Covered | 50 states | 50 states | 50 states |
| In Business Since | 2015 | 1998 | 2014 |
| Get Started → | Get Started → | Get Started → |
Frequently Asked Questions
What to Do Next
Once your Maine LLC is approved, take these steps to set your business up for success.
Get an EIN
Apply for free in about 10 minutes at IRS.gov — required before opening a bank account or hiring anyone.
Open a Business Bank Account
Keep personal and business finances separate from day one. Bring your EIN, Articles of Organization, and a government ID.
Create an Operating Agreement
Even if Maine does not require one, an operating agreement protects your liability shield and defines how the LLC is managed.
File Your Annual Report
Set a calendar reminder now. Missing your Annual Report deadline can result in late fees or administrative dissolution.
Ready To File?
Start your Maine LLC with ZenBusiness — guided filing and compliance support included.
About the Author
Legal & Compliance Analyst
Daniel grew up in the shadow of Silicon Valley but chose the legal route over engineering, working as a paralegal for a corporate law firm specializing in mergers and acquisitions. He realized that early-stage founders were constantly making catastrophic legal mistakes because they couldn't afford a $500/hour attorney, prompting his move to B2B media.
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