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Your checklist · Maine

3 Best Registered Agents in Maine (2026), Step by Step

In Maine for 2026, compare ME Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Maine Registered Agent.co ($99 a year), ranked best first. Budget $99 to $149 up front and $297 to $447 over three years.
Written by the Simple Filing Guide editorial team

The short route

Required by the state?
Yes, name one
Name used by the state
Registered agent
Price of an agent
$99 to $149 per year
Our ranking
ME Registered Agent.org, Mainstay Filing then Maine Registered Agent.co

Our Maine shortlist

Want to know why this order? See how we rank.

#1 First recommendation

1. ME Registered Agent.org: best for one-state companies

Pay $99 a year; it renews at $99

ME Registered Agent.org is our first recommendation because a company that never leaves Maine pays $297 over three years.

Cost decides this one, since the three-year bill is lower than at Mainstay Filing.

Checklist: what is included
  • An address in the state
  • Document scans online
What works
  • Price fixed at $99 yearly
  • Costs less per year than Mainstay Filing
Gaps
  • Single-state coverage
  • The annual report stays on your checklist
See ME Registered Agent.org's plans Partner link. We may earn money if you buy.
#2 Works in every state

2. Mainstay Filing: best for owners who plan to grow

Pay $149 a year; it renews at $149

Next, consider Mainstay Filing: the price does not change by state: $149 a year, $149 at renewal.

A $150 three-year difference to ME Registered Agent.org explains the lower rank.

Checklist: what is included
  • An address of record in the state
  • Free scans of three government mailings per year
  • Works for LLCs, corporations, LPs, LLPs and nonprofits
What works
  • Only $149 a year
  • One price in all fifty states
Gaps
  • Higher yearly bill by $50
  • Nothing beyond the agent role
See Mainstay Filing's plans Partner link. We may earn money if you buy.
#3 In-state option

3. Maine Registered Agent.co: best for staying local

Pay $99 a year; it renews at $99

Maine Registered Agent.co is third, because a company that never leaves Maine pays $297 over three years.

Both publish identical prices, so pick whichever you like better.

Checklist: what is included
  • An address in the state
  • Document scans online
What works
  • Costs less per year than Mainstay Filing
  • Price fixed at $99 yearly
Gaps
  • Single-state coverage
  • The annual report stays on your checklist
See Maine Registered Agent.co's plans Partner link. We may earn money if you buy.

Price comparison

#CompanyFirst-year priceAt renewal3-year totalThe price covers
1 ME Registered Agent.org $99$99/yr$297an address in the state; document scans online See ME Registered Agent.org's plans Partner link. We may earn money if you buy.
2 Mainstay Filing $149$149/yr$447an address of record in the state; free scans of three government mailings per year; Works for LLCs, corporations, LPs, LLPs and nonprofits See Mainstay Filing's plans Partner link. We may earn money if you buy.
3 Maine Registered Agent.co $99$99/yr$297an address in the state; document scans online See Maine Registered Agent.co's plans Partner link. We may earn money if you buy.

We read these prices on November 13, 2026, and three years means year one plus two renewals.

Step by step

Is naming a registered agent a legal duty?

Every LLC must name a registered agent with an in-state street address.

Statute: 5 M.R.S. § 105. verify at legislature.maine.gov, as of October 2026

Who may serve?

A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual or entity serving as agent in Maine, or the holder of a named position in the company.

When you fit the rule, you can fill the role for free.

What should I budget for an agent?

Yearly prices start at $99 to $149, and three years total $297 to $447.

No state fee depends on your choice of agent.

Why does the state want an agent?

It collects lawsuits and official state mail for the LLC at an address in Maine.

If papers arrive and no one accepts them, a case can move ahead without the LLC. What is service of process?

Which yearly state charges apply?

Set aside $85 each year for the annual report. Write down the state's date, June 1.

verify at maine.gov, as of August 2026

What put the first pick on top?

ME Registered Agent.org wins on total for three years, a 37% check.

Start with total for three years, then filing jobs included, then three smaller checks.

On cost, ME Registered Agent.org wins at $297, a saving of $150 against Mainstay Filing.

See the scoring

Maine checklist, with sources

StepWhat to knowWhere it is from
State fee to form the LLC $175verify at legislature.maine.gov, as of October 2026
Registered agent Yes, name oneverify at legislature.maine.gov, as of October 2026
Annual report $85 every yearverify at maine.gov, as of August 2026
Paid to the state by year three $345Our sum of the rows above

To check the three-year number, add the formation filing, the next two reports and any minimum tax; costs with no fixed price are not counted.

FAQ

May I name myself as agent?

Yes, if you meet the state rules on who can serve and on the address, both shown above.

What type of address qualifies?

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.

How do the three-year costs compare?

ME Registered Agent.org adds up to $297, Mainstay Filing adds up to $447, Maine Registered Agent.co adds up to $297

Where do you get the fees?

For state costs we use Maine's published fee schedules and forms. For service costs we use each company's price page.

Does the state require a service?

No. A service charges for labor and the agent role, not for anything the state demands.

Who is your first choice in Maine?

ME Registered Agent.org comes first: one state, $99 a year, $99 after renewal. Next, Mainstay Filing and Maine Registered Agent.co.

Verify these facts

  1. Maine Secretary of State: confirmed August 2026 using maine.gov
  2. Maine Secretary of State: confirmed August 2026 using maine.gov
  3. Maine report due date: confirmed August 2026 using maine.gov
  4. 31 M.R.S. sec. 1531: confirmed August 2026 using legislature.maine.gov
  5. Maine formation fee: Filing fee: confirmed October 2026 using legislature.maine.gov
  6. Maine registered agent statute: confirmed October 2026 using legislature.maine.gov
  7. Prices read November 13, 2026 from the ME Registered Agent.org pricing page
  8. Prices read November 13, 2026 from the Mainstay Filing Maine service page
  9. Prices read November 13, 2026 from the Maine Registered Agent.co pricing page