3 Best Foreign Registration Services in Maine (2026) for You
Who should you hire in Maine for foreign registration services in 2026: we say Mainstay Filing ($199), ME Registered Agent.org ($199) and Maine Registered Agent.co ($199), ranked best first. Maine charges $250 to register, and service fees add $397 to $497 over three years.
By the LLC Answered editorial team
In brief
Short reply
Registration fee
$250
Home-state certificate needed?
Yes (90 days maximum age)
What comes next
$150, Annual report for a foreign LLC
Best first
Mainstay Filing, ME Registered Agent.org then Maine Registered Agent.co
Read November 13, 2026 from company pricing; three years = year one plus two renewals.
Questions and replies
When does an LLC from elsewhere have to register?
An LLC from another state registers with the Maine Secretary of State, Division of Corporations, UCC and Commissions ahead of transacting business in Maine.
The cost of not registering includes the state's courts stay closed to its claims (31 MRSA 1629(1)).
The state's registration fee is $250, and a service costs $199 more.
By year three the state has collected $550. see maine.gov, as of October 2026, state page
What gets submitted?
The place to send the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12) is the Maine Secretary of State, Division of Corporations, UCC and Commissions.
Send certificate of existence not older than 90 days.
Are there ongoing fees?
$150 for the Annual report for a foreign LLC.
The deadline, per the state: June 1.
What decided the ranking?
Mainstay Filing is strongest on paperwork covered, which counts 29% in our ranking.
Five tests set the order: three-year price (36%), paperwork covered (29%), straightforward pricing (15%), renewal behavior (10%) and states served (10%).
ME Registered Agent.org serves Maine only, leaving the home state to someone else.
The final row is a sum, not a state figure: filing fee, then years two and three of reports, then minimum tax where it applies.
More quick questions
What about the state where I formed the LLC?
Each state applies its own rule, so your home state still needs an agent. A provider active in every state, such as Mainstay Filing, covers both.
After three years, what has each cost?
Totals: Mainstay Filing at $497, ME Registered Agent.org at $397, Maine Registered Agent.co at $397, not counting state fees.
How do you know these fees?
Official Maine documents supply the state fees, and the companies' own price pages supply the service fees. Every figure carries a date.
Is a service mandatory?
Not at all. Owners can file with the state directly; a service is there to save you the work and to act as agent.
Who submits the registration?
Yes, filing is part of what each of these companies sells, and the state fee is a constant.
Which foreign registration service should I hire in Maine?
Mainstay Filing, because registration is $199, and nothing is billed for the registered agent until year two. Then ME Registered Agent.org and Maine Registered Agent.co.