How to Register a Foreign LLC in Maine (2026): 5 Steps and the 3 Best Services
Lesson answer for Maine in 2026: if you want help with registering a foreign LLC, use Mainstay Filing ($199), Maine Registered Agent.co ($199) and ME Registered Agent.org ($199), in that order. Registering takes 5 steps below, with $250 paid to the state.
Prices from each company's own site, read November 12, 2026. State fee ($250) not included.
Registering in Maine, step by step
Step1
Step 1: See if your LLC must register in Maine
If your LLC was formed outside Maine and does business there, it needs a foreign registration first. Without registration: It cannot start a lawsuit in Maine courts until it registers (31 MRSA 1629(1)).
Order certificate of existence, dated within 90 days.
TipOrder it once the rest of the filing is ready.
Step3
Step 3: Name your Maine registered agent
Every LLC must name a registered agent with an in-state street address. A noncommercial agent lists a physical street address in Maine, not a P.O. box. Commercial agents keep their address on file with the state.
Step 4: Submit the Statement of Foreign Qualification to Conduct Activities
The Maine Secretary of State, Division of Corporations, UCC and Commissions takes the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12) and the $250 fee.
Official source: As listed on maine.gov in October 2026
Step5
Step 5: Keep up with Maine's yearly filing
Expect the Annual report for a foreign LLC and its $150 fee (June 1).
Maine costs by step
Cost item
Paid to
Amount
The registration step
Paid to the state
$250
Annual report for a foreign LLC
Paid to the state
$150
Optional service
The service
$199 to start
State total over three years
Paid to the state
$550
State amounts come from Maine's official schedules (see References). The three-year state line adds the filing, the reports due in years two and three and any yearly minimum tax.
How we ranked the Maine picks
The grade turned on lesson steps handled (35%), where Mainstay Filing came out ahead of Maine Registered Agent.co.
Registering here means two states at least; one provider for both beat Maine Registered Agent.co.
Questions students ask
What does it cost to register a foreign LLC in Maine?
$250 as the official fee. Our picks add $199.
Which form do I file to register?
The Maine Secretary of State, Division of Corporations, UCC and Commissions takes the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12).
Do I need a certificate from my home state?
Yes: certificate of existence, issued within 90 days of filing.
What if the LLC does business there without registering?
It cannot start a lawsuit in Maine courts until it registers (31 MRSA 1629(1)).
What is due after registering?
After registering, the LLC owes the Annual report for a foreign LLC ($150 each time).
Which service should handle the registration?
Mainstay Filing: it handles the Maine filing for $199 plus the state fee and includes the first agent year. After it, Maine Registered Agent.co and ME Registered Agent.org.