Skip to content
Plain CharterLLC questions, short answers.

No legalese · Maine

3 Best Registered Agents in Maine (2026), Plainly Answered

We'd pick Mainstay Filing ($149 a year), Maine Registered Agent.co ($99 a year) and ME Registered Agent.org ($99 a year) in Maine for 2026, in that order. Three years of agent service add up to $297 to $447, starting at $99 to $149.

By the Plain Charter editorial team ·

Short version

Required?
Yes, required
What the law calls it
Registered agent
Service price
$99 to $149 per year
Who to hire
Mainstay Filing, Maine Registered Agent.co then ME Registered Agent.org

The Maine picks

Our order, explained on how we choose.
1Top pick

1. Mainstay Filing: best for owners planning to grow

First year $149, then $149 a year

We put Mainstay Filing at the top because it costs $149 a year, $149 at renewal, and one account covers any state.

Yes, Maine Registered Agent.co is $150 less across three years. We still put the pick that covers every state first.

The price covers

  • A street address in the state
  • Three government mailings a year scanned free
  • Covers LLCs, corporations, LPs, LLPs and nonprofits

Upsides

  • Same price in all fifty states
  • $149 a year, same at renewal

What to weigh

  • Higher by $50 a year
  • Agent service only, no report filing
Visit Mainstay FilingPartner link. We may earn money if you buy.
2Maine specialist

2. Maine Registered Agent.co: best for one-state companies

First year $99, then $99 a year

Maine Registered Agent.co comes second: the plan is $99 a year for one state, renewing at $99.

The price covers

  • Registered office address
  • Scanned service of process

Upsides

  • $99 yearly
  • Under the national pick on price

What to weigh

  • Maine only
  • Your own annual report to file
Visit Maine Registered Agent.coPartner link. We may earn money if you buy.
3Maine specialist

3. ME Registered Agent.org: best for staying local

First year $99, then $99 a year

ME Registered Agent.org comes third: the plan is $99 a year for one state, renewing at $99.

Maine Registered Agent.co charges the same, so this one is a close second.

The price covers

  • Registered office address
  • Scanned service of process

Upsides

  • Under the national pick on price
  • $99 yearly

What to weigh

  • Maine only
  • Your own annual report to file
Visit ME Registered Agent.orgPartner link. We may earn money if you buy.

Side-by-side prices

#ServiceTo startRenewal priceOver three yearsCovers
1Mainstay Filing$149$149/yr$447A street address in the state; three government mailings a year scanned free; Covers LLCs, corporations, LPs, LLPs and nonprofitsVisit Mainstay FilingPartner link. We may earn money if you buy.
2Maine Registered Agent.co$99$99/yr$297registered office address; scanned service of processVisit Maine Registered Agent.coPartner link. We may earn money if you buy.
3ME Registered Agent.org$99$99/yr$297registered office address; scanned service of processVisit ME Registered Agent.orgPartner link. We may earn money if you buy.
Read from company pricing on November 12, 2026; three years means the first year plus two renewals.

What owners ask

Does the law require a registered agent?

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

Legal basis: 5 M.R.S. § 105. October 2026 · legislature.maine.gov

Who can serve as the agent?

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.

You can be your own agent if you qualify; the state charges nothing extra.

What does an agent cost?

Plan on $99 to $149 a year ($297 to $447 for three).

The state charges the same with any agent.

What is the agent's job?

Its job is to receive legal documents and official notices for the company in Maine.

That is why the address must be staffed in business hours. What is service of process?

Are there yearly state fees?

Mainly the annual report, once a year. Fee: $85. Deadline: June 1.

August 2026 · maine.gov

Why this order?

It comes down to what the price takes off your plate, where Mainstay Filing is strongest.

We start with three-year cost (35%), then what the price takes off your plate (30%).

Reach decided it: fifty states against one.

Read our criteria

Maine requirements checklist

ItemAnswerSource
Formation fee$175October 2026 · legislature.maine.gov
Registered agentYes, requiredOctober 2026 · legislature.maine.gov
Annual report$85 every yearAugust 2026 · maine.gov
State total, years 1 to 3$345Sum of the rows
Filing fee, the reports in years two and three, then any minimum tax: that is the three-year line.

People also ask

Can I be my own agent?

Usually yes: check the two rules above, who qualifies and the address.

What address does the agent need?

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?

Mainstay Filing $447, Maine Registered Agent.co $297 and ME Registered Agent.org $297

Are the fees official?

Each state fee links its official source; each service price comes from the company's site.

Do I have to use a service?

No. The state accepts filings from owners; a service saves time and handles the agent role.

What is the best registered agent for Maine?

Mainstay Filing first: the price is $149 a year wherever the LLC is on file. Maine Registered Agent.co and ME Registered Agent.org follow.

Official sources and prices

  1. maine.gov · Maine Secretary of State · August 2026
  2. maine.gov · Maine Secretary of State · August 2026
  3. maine.gov · Maine report due date · August 2026
  4. legislature.maine.gov · 31 M.R.S. sec. 1531 · August 2026
  5. legislature.maine.gov · Maine formation fee: Filing fee · October 2026
  6. legislature.maine.gov · Maine registered agent statute · October 2026
  7. Mainstay Filing Maine service page, prices as of November 12, 2026
  8. Maine Registered Agent.co pricing page, prices as of November 12, 2026
  9. ME Registered Agent.org pricing page, prices as of November 12, 2026