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Registered agent cost calculators + Maine

3 Best Registered Agents in Maine (2026): Cost Calculator

Run for 2026, the registered agents in Maine that come out best are Mainstay Filing ($149/yr), Maine Registered Agent.co ($99/yr) and ME Registered Agent.org ($99/yr), in that order. One agent year costs $99 to $149; three years come out to $297 to $447.
Calculated by the Formation Calc editorial team

Result order: Formula: 41% cost, 27% coverage, three lesser terms. Details

Results in brief

Must the LLC have a registered agent?Yeslegislature.maine.gov {input read October 2026, shown in full}
Year-1 results$99 to $149A single agent year
Three-year band$297 to $447First year and both renewals
Annual report$85 per yearmaine.gov {input read August 2026, shown in full}
Break-evenTotals stay apartRanking steady to year 10

Maine: results, best value first

Results sit in value order, with inputs taken from company pages. State fees are the same whoever serves as agent.
1

1. Mainstay Filing: best for the same input in every state

Best value
Year-1 input$149
Renewal input$149/yr
Result at year 3$447
$149 in year one, then $149 in each year after

Mainstay Filing comes first because $149 a year in this state and the same $149 in the next one.

Using Maine Registered Agent.co would save $150 over three years and leave more filing work to you.

Inputs covered

  • The registered office address
  • Up to three government mailings a year, scanned free
  • Covers LLCs, corporations, LPs, LLPs and nonprofits

Adds up well

  • Valid in every state
  • $149 a year, no change at renewal

Adds up badly

  • Maine Registered Agent.co is $50 cheaper each year
  • Agent service only, reports stay with you
2

2. Maine Registered Agent.co: best for a single state to cover

In-state provider
Year-1 input$99
Renewal input$99/yr
Result at year 3$297
$99 in year one, then $99 in each year after

Maine Registered Agent.co holds position 2 because $297 across three years, assuming the company does not move.

Inputs covered

  • An address in the state on record
  • Papers served on the LLC scanned to your account

Adds up well

  • Comes in under Mainstay Filing each year
  • Constant $99 per year

Adds up badly

  • One-state service
  • No help with the annual report
3

3. ME Registered Agent.org: best for another in-state address

In-state provider
Year-1 input$99
Renewal input$99/yr
Result at year 3$297
$99 in year one, then $99 in each year after

ME Registered Agent.org holds position 3 because $297 across three years, assuming the company does not move.

Its inputs match Maine Registered Agent.co's exactly.

Inputs covered

  • An address in the state on record
  • Papers served on the LLC scanned to your account

Adds up well

  • Constant $99 per year
  • Comes in under Mainstay Filing each year

Adds up badly

  • One-state service
  • No help with the annual report

Running total by year

RankServiceResult, year 1Result, year 2Result, year 3Result, year 5
1Mainstay Filing$149$298$447$745Open Mainstay FilingPartner link. We may earn money if you buy.
2Maine Registered Agent.co$99$198$297$495Open Maine Registered Agent.coPartner link. We may earn money if you buy.
3ME Registered Agent.org$99$198$297$495Open ME Registered Agent.orgPartner link. We may earn money if you buy.
The first-year price plus renewals, using the prices entered November 13, 2026. Ranked by running result, the order is steady for ten years.

The calculator

Given your years, the calculator adds the first-year price and each renewal for every service.
Output for 3 years: Mainstay Filing $447, Maine Registered Agent.co $297, ME Registered Agent.org $297. Lowest at that point: Maine Registered Agent.co.

Official state charges

InputAmountSource
Cost to form$175legislature.maine.gov {input read October 2026, shown in full}
Annual report$85 every yearmaine.gov {input read August 2026, shown in full}
Penalty for a late report$50maine.gov {input read August 2026, shown in full}
What the state collects by year 3$345Our sum
Three years of state charges mean one filing, two reports and any yearly minimum tax. Publication and similar costs are noted separately.

How the result came out

Filing work in the price put Mainstay Filing first. That term is 27% of the formula, and calculated three-year cost, renewal change, break-even year and input clarity make up the remainder.

Coverage put it ahead of Maine Registered Agent.co.

The Maine registered agent rule as the state states it (Maine Secretary of State)

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

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. (5 M.R.S. § 105)

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.

Official text: legislature.maine.gov {input read October 2026, shown in full}

State fees only

If you qualify, naming yourself costs no agent fee, and state fees are unchanged. The services above charge $99 to $149 a year for a Maine address and a person to receive legal papers.

About these results

What does a Maine registered agent charge per year?

These agents charge $99 to $149 per year.

What do three years of agent service cost?

$297 to $447 in service fees, with state fees on top.

Is a registered agent a must for a Maine LLC?

Yes, it does. Every LLC must name a registered agent with an in-state street address.

Can the owner be the registered agent?

If you qualify, yes; the requirements section has the rules.

What does the state charge the LLC each year?

The repeating input is the annual report, at $85 annually (June 1).

When does one service pass another in total cost?

No crossing within ten years; no service passes another.

Which registered agent calculates best in Maine?

Mainstay Filing, which wins on filing work in the price. Maine Registered Agent.co and ME Registered Agent.org follow.

Input sources

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