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LLC Q and AOne question, one reply, one source.

Quick answer · Maine

3 Best Foreign Registration Services in Maine (2026), Ranked

Best foreign registration services in Maine for 2026: ME Registered Agent.org ($199), Maine Registered Agent.co ($199) and Mainstay Filing ($199), ranked in that order. Registering costs $250 at Maine, whoever files, plus $397 to $497 to a service over three years.

LLC Q and A editorial team ·

Quick answers

Fee to the state
$250
Certificate required?
Required (90 day age limit)
After registering
$150, Annual report for a foreign LLC
Our pick
ME Registered Agent.org, Maine Registered Agent.co then Mainstay Filing

Maine ranking

Scoring is explained on the method page.
1#1 pick

1. ME Registered Agent.org: best for registering in just this state

$199 plus state fee, then $99/yr

#1 in Maine: ME Registered Agent.org, because its service fees reach $397 over three years.

It undercuts Mainstay Filing on three-year cost, which puts it first for a company that stays put.

Price covers

  • Foreign filing handled
  • Agent for year one

For

  • Year-one agent included
  • $199 over the state fee
  • Agent renews at $99

Against

  • Nothing outside this state
ME Registered Agent.org sitePartner link. We may earn money if you buy.
2Maine specialist

2. Maine Registered Agent.co: best for another local option

$199 plus state fee, then $99/yr

Maine Registered Agent.co ranks second since its service fees reach $397 over three years.

It charges exactly what ME Registered Agent.org charges.

Price covers

  • Foreign filing handled
  • Agent for year one

For

  • $199 over the state fee
  • Year-one agent included
  • Agent renews at $99

Against

  • Nothing outside this state
Maine Registered Agent.co sitePartner link. We may earn money if you buy.
3Nationwide

3. Mainstay Filing: best for a growing LLC

$199 plus state fee, then $149/yr

Mainstay Filing ranks third since registration is $199 and the registered agent costs nothing until year two.

ME Registered Agent.org is $100 less over three years, which outweighs the rest.

After the free year, the registered agent is $149 a year.

Price covers

  • Out-of-state registration filed
  • Registered agent, free first year
  • One fee for all fifty states

For

  • Same fee in every state
  • No registered agent fee in year one
  • $199 plus Maine's fee

Against

  • Renewal $50 over ME Registered Agent.org
Mainstay Filing sitePartner link. We may earn money if you buy.

Comparison

#CompanyYear 1Per year after3-year costIncludes
1ME Registered Agent.org$199$99/yr$397foreign filing handled; agent for year oneME Registered Agent.org sitePartner link. We may earn money if you buy.
2Maine Registered Agent.co$199$99/yr$397foreign filing handled; agent for year oneMaine Registered Agent.co sitePartner link. We may earn money if you buy.
3Mainstay Filing$199$149/yr$497Out-of-state registration filed; registered agent, free first year; one fee for all fifty statesMainstay Filing sitePartner link. We may earn money if you buy.
Service fees only, from company price pages read November 13, 2026. State fees are identical for every pick.

Questions and replies

When must an out-of-state LLC register?

Register with the Maine Secretary of State, Division of Corporations, UCC and Commissions first; do business in Maine second.

Penalties for skipping it: it cannot sue in Maine courts until registered (31 MRSA 1629(1)).

source of record: legislature.maine.gov, confirmed October 2026

What does registering cost?

$250 to the state, plus $199 for a service.

Three-year state total, registration included: $550. source of record: maine.gov, confirmed October 2026

Which form, filed where?

Once the Maine Secretary of State, Division of Corporations, UCC and Commissions accepts the Statement of Foreign Qualification to Conduct Activities (Form MLLC-12), the LLC is registered.

Attach certificate of existence issued in the last 90 days.

Any recurring filing?

A recurring Annual report for a foreign LLC, at $150.

Deadline per the state: June 1.

Why this order?

Three-year price (36%) goes to ME Registered Agent.org.

Five criteria: three-year price (36%), chores removed from your list (26%), price shown up front (15%), year-two bill (12%) and states served (11%).

ME Registered Agent.org: $397 for three years, $100 below Mainstay Filing.

Method

Maine registration requirements

ItemDetailSource
Registration fee$250source of record: maine.gov, confirmed October 2026
Home-state certificateRequired, 90 dayssource of record: legislature.maine.gov, confirmed October 2026
Annual report for a foreign LLC$150source of record: legislature.maine.gov, confirmed October 2026
State fees, 3 years$550Sum of the rows above
To verify the total: filing fee, two later reports, minimum tax if one applies. Costs without a set amount are excluded.

Also asked

Is an agent needed at home too?

Yes, in most cases. A company active in every state, such as Mainstay Filing, can cover home and this state together.

Three-year cost of each?

ME Registered Agent.org will run $397, Maine Registered Agent.co will run $397, Mainstay Filing will run $497, with state fees on top.

Are the fees official?

State fees cite their official page; service prices come from the company's own site.

Is a service required?

No law requires a service; it is a paid convenience.

Can someone register the LLC for me?

Yes, every pick files it, and the state fee is the same for all.

Who ranks first in Maine?

ME Registered Agent.org: registration is $199 over the state fee, agent covered in year one, then $99 a year. Behind it: Maine Registered Agent.co and Mainstay Filing.

Source list

  1. Q and A source note covering Maine Secretary of State, found at maine.gov and dated August 2026, kept on file
  2. Q and A source note covering Maine Secretary of State, found at maine.gov and dated August 2026, kept on file
  3. Q and A source note covering Maine report due date, found at maine.gov and dated August 2026, kept on file
  4. Q and A source note covering 31 M.R.S. sec. 1531, found at legislature.maine.gov and dated August 2026, kept on file
  5. Q and A source note covering Maine formation fee: Filing fee, found at legislature.maine.gov and dated October 2026, kept on file
  6. Q and A source note covering Maine registered agent statute, found at legislature.maine.gov and dated October 2026, kept on file
  7. Q and A source note covering Maine Secretary of State, foreign, found at maine.gov and dated October 2026, kept on file
  8. Q and A source note covering Form MLLC-12, found at maine.gov and dated October 2026, kept on file
  9. Q and A source note covering 31 MRSA § 1622, foreign, found at legislature.maine.gov and dated October 2026, kept on file
  10. Q and A source note covering 31 MRSA § 1623, activities, found at legislature.maine.gov and dated October 2026, kept on file
  11. Q and A source note covering 31 MRSA § 1629, consequences, found at legislature.maine.gov and dated October 2026, kept on file
  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