How to Register a Foreign LLC in Maine (2026): Step by Step + 3 Best Services

To register a foreign LLC in Maine, file Form MLLC-12 (Statement of Foreign Qualification) with the Secretary of State and pay the $250 fee. Best foreign LLC registration services in Maine (2026) 1. Mainstay Filing: $199 + state fee. Prepares and files your Form MLLC-12, with the first year of registered agent service included, then $149/yr. https://www.mainstayfiling.com/maine/... 2. ME Registered Agent.org: $199 + state fee. Prepares and files your Form MLLC-12, with the first year of registered agent service free, then $99/yr. https://www.meregisteredagent.org/for... 3. Maine Registered Agent.co: $199 + state fee. Files your Maine registration with the first year of registered agent service free, then $99/yr. https://www.maineregisteredagent.co/f... How to register a foreign LLC in Maine, step by step 00:00 How to register a foreign LLC in Maine 00:31 Step 1: Check that you need to register 01:07 Step 2: Get a certificate of existence 01:17 Step 3: Name a Maine registered agent 01:32 Step 4: File Form MLLC-12 ($250) 02:00 Step 5: File the $150 annual report by June 1 02:17 What it costs 02:29 3 best ways to register: #1 Mainstay Filing 02:58 #2 ME Registered Agent.org 03:17 #3 Maine Registered Agent.co 03:56 Recap Maine foreign LLC facts (checked October 8, 2026) Filing: Form MLLC-12, Statement of Foreign Qualification to Conduct Activities (31 MRSA §1622), $250, by mail or delivery to Augusta; optional expedite $50 (next day) or $100 (same day). Home-state certificate: a certificate of existence issued no more than 90 days before delivery. Name: must contain an LLC designator; if unavailable, Form FICT-4 ($40) for a fictitious name. Conducting activities: 31 MRSA §1623 lists eleven activities that don't count, including owning property and interstate commerce. Registered agent: a commercial agent, an individual or an entity, at an actual Maine street address; consent affirmed on the statement. Unqualified: a $500 civil penalty for each year or part of a year (31 MRSA §1629); no suits to collect debts until qualified; acts stay valid. Annual report: $150 for a foreign LLC ($85 domestic), January 1 to June 1 each year starting the year after qualifying; $50 late fee. Official sources Form MLLC-12 (PDF): https://www.maine.gov/sos/sites/maine... Foreign entities: https://www.maine.gov/sos/corporation... 31 MRSA §1622: https://legislature.maine.gov/statute... 31 MRSA §1623: https://legislature.maine.gov/statute... 31 MRSA §1629: https://legislature.maine.gov/statute... 31 MRSA §1680: https://legislature.maine.gov/statute... General information, not legal advice. Prices and fees as of October 8, 2026.