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LLC Straight Talk What it costs, what you have to file, who's worth paying.

Here's the deal · Maine

3 Best Foreign Registration Services in Maine (2026), No Fluff

For foreign registration services in Maine in 2026, we'd rank ME Registered Agent.org ($199), Maine Registered Agent.co ($199) and Mainstay Filing ($199), best first. Here's the money: $250 to the state, $397 to $497 to a service across three years.
Straight from the LLC Straight Talk editorial team

Quick facts

The short of it
State fee to register
$250
Certificate from home?
Yes, attach it (90 day age cap)
Once you're registered
$150, Annual report for a foreign LLC
Our pick
ME Registered Agent.org, Maine Registered Agent.co then Mainstay Filing

Maine picks, best first

Prices come from each company's own page. Here's how we judge.

#1 Who we'd call first

1. ME Registered Agent.org: best for adding this state and no others

$199 plus the state fee, then $99 a year

ME Registered Agent.org is who we'd use first in Maine, because $199 files the registration, and from year two the agent's $99.

It beats Mainstay Filing on three-year cost, and cost is the biggest test.

What you get

  • Registration filed
  • Agent service covered for year one

Pluses

  • $199 plus the state fee
  • The first agent year's included
  • Agent renews at $99

What's not

  • Nothing outside this state
Check ME Registered Agent.org Partner link. We may earn money if you buy.
#2 Maine only

2. Maine Registered Agent.co: best for another in-state choice

$199 plus the state fee, then $99 a year

Maine Registered Agent.co comes in second because $199 files the registration, and from year two the agent's $99.

It charges what ME Registered Agent.org charges.

What you get

  • Registration filed
  • Agent service covered for year one

Pluses

  • $199 plus the state fee
  • The first agent year's included
  • Agent renews at $99

What's not

  • Nothing outside this state
Check Maine Registered Agent.co Partner link. We may earn money if you buy.
#3 Every state

3. Mainstay Filing: best for registering in several states

$199 plus the state fee, then $149 a year

There's one fee, $199, whatever state you're registering in, and the registered agent is waived for the first year. That puts Mainstay Filing third.

ME Registered Agent.org is $100 less over three years, and that's enough to decide the order.

Year one of the registered agent is on the house; every renewal after that is $149.

What you get

  • Your registration filed for you
  • Registered agent, on the house in year one
  • A flat fee in every state

Pluses

  • $199 over the state fee
  • The first agent year's covered
  • The price doesn't change by state

What's not

  • Agent renews at $149, $50 above ME Registered Agent.org
Check Mainstay Filing Partner link. We may earn money if you buy.

The numbers

#CompanyYear oneThenThree-year totalWhat you get
1 ME Registered Agent.org $199$99/yr$397registration filed; agent service covered for year one Check ME Registered Agent.org Partner link. We may earn money if you buy.
2 Maine Registered Agent.co $199$99/yr$397registration filed; agent service covered for year one Check Maine Registered Agent.co Partner link. We may earn money if you buy.
3 Mainstay Filing $199$149/yr$497your registration filed for you; registered agent, on the house in year one; A flat fee in every state Check Mainstay Filing Partner link. We may earn money if you buy.

Service fees only, from each company's prices on November 13, 2026. State fees are the same whoever you pick.

The questions that matter

Does my LLC have to register here?

Do it first, sell second: an LLC from elsewhere signs up with the Maine Secretary of State, Division of Corporations, UCC and Commissions before taking its first Maine customer.

If you skip it, expect it can't act as a plaintiff (31 MRSA 1629(1)).

legislature.maine.gov, confirmed October 2026, if you don't believe us

How much does registering run?

The state charges $250, and a service adds $199.

Add three years of state fees, registration included, and you're at $550. maine.gov, confirmed October 2026, if you don't believe us

Which form, and who gets it?

The form's the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12), and the Maine Secretary of State, Division of Corporations, UCC and Commissions gets it.

Attach certificate of existence no older than 90 days.

What do I owe once I'm registered?

The state wants a Annual report for a foreign LLC later, and it's $150.

Straight from the state, the deadline is June 1.

Why this order?

On money out the door in three years (35% of the score), ME Registered Agent.org wins.

We run five tests: money out the door in three years (35%), jobs the price actually covers (30%), no hunting for the price (14%), no surprise at renewal (11%) and where it works (10%).

ME Registered Agent.org undercuts Mainstay Filing by $100 over three years, ending at $397.

How we judge

What Maine requires to register

WhatDetailCheck it
Fee to register $250maine.gov, confirmed October 2026, if you don't believe us
Certificate from home Yes, attach it, 90 dayslegislature.maine.gov, confirmed October 2026, if you don't believe us
Annual report for a foreign LLC $150legislature.maine.gov, confirmed October 2026, if you don't believe us
What the state collects in three years $550The rows above, added up

The last row is our math, not the state's: filing fee, plus the reports in years two and three, plus any minimum tax. If a cost has no fixed amount, like a newspaper notice, it's explained above and left out.

More questions

Do I still need an agent at home?

Yes. Your home state has its own agent rule, and Mainstay Filing can cover both states from one account.

What do the picks cost over three years?

ME Registered Agent.org will set you back $397, and Maine Registered Agent.co will set you back $397, and Mainstay Filing will set you back $497, with state fees on top.

Where do these numbers come from?

Official Maine sources back the state side, and posted prices back the service side.

Do I have to use a service?

No law says you need a service. It's a convenience you pay for.

Will a service file it for me?

Each company on this page files it for you.

What's the best foreign registration service in Maine?

ME Registered Agent.org, because the service fee's $199, with the first year of agent service included, and renewal is $99. After that, Maine Registered Agent.co and Mainstay Filing.

Keep reading

Sources, so you can check

  1. Where Maine Secretary of State comes from: maine.gov, confirmed August 2026, and you can go look yourself
  2. Where Maine Secretary of State comes from: maine.gov, confirmed August 2026, and you can go look yourself
  3. Where Maine report due date comes from: maine.gov, confirmed August 2026, and you can go look yourself
  4. Where 31 M.R.S. sec. 1531 comes from: legislature.maine.gov, confirmed August 2026, and you can go look yourself
  5. Where Maine formation fee: Filing fee comes from: legislature.maine.gov, confirmed October 2026, and you can go look yourself
  6. Where Maine registered agent statute comes from: legislature.maine.gov, confirmed October 2026, and you can go look yourself
  7. Where Maine Secretary of State, foreign comes from: maine.gov, confirmed October 2026, and you can go look yourself
  8. Where Form MLLC-12 comes from: maine.gov, confirmed October 2026, and you can go look yourself
  9. Where 31 MRSA § 1622, foreign comes from: legislature.maine.gov, confirmed October 2026, and you can go look yourself
  10. Where 31 MRSA § 1623, activities comes from: legislature.maine.gov, confirmed October 2026, and you can go look yourself
  11. Where 31 MRSA § 1629, consequences comes from: legislature.maine.gov, confirmed October 2026, and you can go look yourself
  12. ME Registered Agent.org pricing page, read November 13, 2026
  13. Maine Registered Agent.co pricing page, read November 13, 2026
  14. Mainstay Filing Maine service page, read November 13, 2026