How to Start an LLC in Maine
Everything you need to form an LLC in Maine — step-by-step instructions, exact costs, and the best formation services compared side-by-side.
Maine LLC at a Glance
Filing Fee
$175
Processing
5 days
Annual Report
$85/yr
State Tax
Yes
Choose Your LLC Name in Maine
Your LLC name must be unique and distinguishable from other businesses registered in Maine. It must include "LLC," "L.L.C.," or "Limited Liability Company." You can check name availability on the Secretary of State website before filing.
Pro Tip
Search for your proposed name on the Secretary of State website to make sure it's available before you pay the filing fee.
Appoint a Registered Agent in Maine
Maine requires every LLC to designate a registered agent — a person or company authorized to receive legal documents and official correspondence on behalf of your business. Your registered agent must have a physical address in Maine (no P.O. boxes).
Pro Tip
You can be your own registered agent for free, but most business owners hire a service ($100–$250/year) for privacy and reliability. A professional service ensures you never miss important legal documents.
File Your Certificate of Formation in Maine
File your Certificate of Formation with the Secretary of State. The filing fee is $175, and standard processing takes about 5 business days. You can file online through the Secretary of State website or mail a paper form.
Pro Tip
Filing online is faster and often provides instant confirmation. Most formation services handle this step for you and include the state filing fee in their price.
Create an Operating Agreement
An operating agreement outlines how your LLC is managed, how profits are distributed, and what happens if a member leaves. While not all states legally require one, it's essential for protecting your limited liability status and preventing disputes.
Pro Tip
Even single-member LLCs should have an operating agreement. It strengthens your liability protection and helps separate personal and business finances. Most formation services include a template.
Get an EIN (Employer Identification Number)
An EIN is like a Social Security number for your business. You'll need it to open a business bank account, hire employees, and file taxes. The IRS issues EINs for free — apply online and get your number instantly.
Pro Tip
Apply directly on the IRS website for free. It takes about 5 minutes and you'll receive your EIN immediately. Don't pay a service to do this unless it's bundled with your formation package.
Open a Business Bank Account
A separate business bank account is critical for maintaining your LLC's liability protection. It keeps your personal and business finances separate, which courts look for when evaluating whether your LLC should protect your personal assets.
Pro Tip
Bring your Certificate of Formation, EIN confirmation letter, operating agreement, and a photo ID to the bank. Many online banks like Mercury or Relay offer free business checking with no minimums.
Compare LLC Formation Costs in Maine
See the total cost to form your Maine LLC across every major formation service — including the $175 state filing fee, service fees, and registered agent costs.
Select your state to compare costs
We'll compare formation costs across 5 services — including state filing fees, service fees, and registered agent costs — so you can find the best deal.
Ongoing Requirements for Maine LLCs
After forming your LLC, Maine has ongoing compliance requirements you need to stay on top of to keep your LLC in good standing.
Annual Report
Maine requires an annual report with a fee of $85. Missing this deadline can result in penalties or administrative dissolution.
Registered Agent
You must maintain a registered agent in Maine at all times. If you hired a service, expect to pay $100–$250/year for renewal. You can change your registered agent by filing an amendment.
State Taxes
Maine has a state income tax with rates ranging from 5.8% to 7.15%.
Good Standing
Keep your LLC in good standing by filing all required reports on time, maintaining your registered agent, and paying applicable taxes. Falling out of compliance can result in penalties or dissolution.
Not sure Maine is right for your LLC?
Take our Best State to Form quiz to compare Maine against other states based on your specific business needs.
Ready to Start Your Maine LLC?
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Frequently Asked Questions About Maine LLCs
How much does it cost to form an LLC in Maine?
The filing fee for forming an LLC in Maine is $175, paid to the Secretary of State when submitting your Certificate of Formation.
How long does it take to form an LLC in Maine?
Standard processing for a Maine LLC typically takes 5-10 business days when filed online.
Do I need a registered agent in Maine?
Yes, every LLC formed in Maine is required to designate a registered agent with a physical street address in the state to receive legal and official documents.
What are the ongoing costs of an LLC in Maine?
Maine LLCs must file an annual report with an $85 fee each year to remain in good standing.