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Plain talk · Massachusetts

3 Best Registered Agents in Massachusetts (2026), No Jargon

In Massachusetts for 2026, we like Massachusetts Registered Agent.co ($99 a year), MA Registered Agent.org ($99 a year) and Mainstay Filing ($149 a year), ranked from first to last. You'll pay $99 to $149 in year one, and $297 to $447 across three years.
From the LLC Plainly editorial team

The short version

Does the law demand one?
Yes, the law says so
Official title
Resident agent
What it costs a year
$99 to $149 a year
Our picks
Massachusetts Registered Agent.co, MA Registered Agent.org then Mainstay Filing

Our favorites in Massachusetts

The order comes from our five checks: three-year cost first, then how much the price covers.
Start here

1. Massachusetts Registered Agent.co: best for one-state companies

$99 yearly, renewing at $99

Why Massachusetts Registered Agent.co? Honestly, it's $99 a year, $99 once you renew, for an LLC that stays in Massachusetts.

Over three years it costs less than Mainstay Filing, which counts most with us.

Your money buys

  • A real address in the state
  • Legal papers scanned and posted online

The good

  • Cheaper each year than Mainstay Filing
  • Just $99 a year

Trade-offs

  • A second state means a second agent
  • Nothing here covers the Limited Liability Company Annual Report
Massachusetts specialist

2. MA Registered Agent.org: best for owners who like a local company

$99 yearly, renewing at $99

Second place goes to MA Registered Agent.org, where it's $99 a year, $99 once you renew, for an LLC that stays in Massachusetts.

It charges what Massachusetts Registered Agent.co charges, so the order between them is close.

Your money buys

  • A real address in the state
  • Legal papers scanned and posted online

The good

  • Cheaper each year than Mainstay Filing
  • Just $99 a year

Trade-offs

  • A second state means a second agent
  • Nothing here covers the Limited Liability Company Annual Report
Works in every state

3. Mainstay Filing: best for an agent that goes where you go

$149 yearly, renewing at $149

Number 3 is Mainstay Filing: the $149 yearly price goes with you to any state you add.

Over three years it costs $150 more than Massachusetts Registered Agent.co, and we weigh cost the most.

Your money buys

  • Registered office on file
  • We scan up to three government mailings a year at no charge
  • Also covers corporations, LPs, LLPs and nonprofits

The good

  • Good wherever the LLC registers
  • $149 every year, no increase

Trade-offs

  • Massachusetts Registered Agent.co is $50 cheaper each year
  • You get an agent and nothing more

At a glance

#CompanyStart priceRenews atOver three yearsCovers
1Massachusetts Registered Agent.co$99$99/yr$297A real address in the state; legal papers scanned and posted onlineHead to Massachusetts Registered Agent.coPartner link. We may earn money if you buy.
2MA Registered Agent.org$99$99/yr$297A real address in the state; legal papers scanned and posted onlineHead to MA Registered Agent.orgPartner link. We may earn money if you buy.
3Mainstay Filing$149$149/yr$447registered office on file; we scan up to three government mailings a year at no charge; Also covers corporations, LPs, LLPs and nonprofitsHead to Mainstay FilingPartner link. We may earn money if you buy.
These are service fees only, from each company's prices on November 13, 2026. The state's fees are the same whoever you pick.

Straight answers

Does my LLC need a resident agent here?

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

The rule comes from M.G.L. c. 156C, § 5. check it at sec.state.ma.us, October 2026

Who can I name as my agent?

A Massachusetts resident, a Massachusetts corporation, or a corporation from another state authorized to do business in Massachusetts. State regulations (950 CMR 112.13) also allow other business entities authorized in Massachusetts.

Qualify, and the job can be yours for free.

How much per year for an agent?

$99 to $149 a year with the services we'd use, or $297 to $447 across three years.

The state charges the same no matter the agent.

What's the agent there for?

It accepts legal papers and state notices for your company, using an address in Massachusetts.

Service is only as good as the forwarding, so ask how documents reach you. A closer look at service of process

What's due each year apart from the agent?

Plan for the Limited Liability Company Annual Report ($500, annual). It's due on or before the anniversary date of filing of the certificate of organization, so add the date to your calendar.

check it at malegislature.gov, August 2026

Why is the list in this order?

It comes down to cost across three years, and Massachusetts Registered Agent.co is best at it.

33% of the score is cost across three years, 31% is work taken off your hands, and three smaller checks split ties.

On cost, Massachusetts Registered Agent.co takes it at $297, a saving of $150 against Mainstay Filing.

See how we score

Massachusetts: the rules, cited

WhatDetailsCheck it
What you pay to file$500check it at sec.state.ma.us, October 2026
Resident agentYes, the law says socheck it at sec.state.ma.us, October 2026
Limited Liability Company Annual Report$500 every yearcheck it at malegislature.gov, August 2026
What the state gets in three years$1,500Our total of the lines above
We add the formation filing, two later reports and any minimum tax to reach the three-year number. Costs that have no fixed price don't go in.

A few more

Can I act as my own agent?

You can once you meet the rule on who can serve and where.

Where does the agent have to be located?

The address has to be a street address in Massachusetts. A post office address is not sufficient.

What does each one cost over three years?

Massachusetts Registered Agent.co will cost you $297, MA Registered Agent.org will cost you $297, Mainstay Filing will cost you $447

Can I check these fees?

Official Massachusetts sources on the state side and company pricing on the service side, all dated.

Can I just do this myself?

You can skip it. The state's fee is the same whichever way you file.

Who would you go with in Massachusetts?

Massachusetts Registered Agent.co is on top because $99 a year gets you an agent right in the state; MA Registered Agent.org and Mainstay Filing follow.

Where we got this

  1. sec.state.ma.us: the page for Massachusetts Secretary of the Commonwealth, seen August 2026
  2. malegislature.gov: the page for Massachusetts Secretary of the Commonwealth, seen August 2026
  3. sec.state.ma.us: the page for M.G.L. c. 156C, sec. 12, seen August 2026
  4. sec.state.ma.us: the page for Massachusetts formation fee: Filing fee, seen October 2026
  5. sec.state.ma.us: the page for Massachusetts formation fee: Filing fee, seen October 2026
  6. sec.state.ma.us: the page for Massachusetts registered agent statute, seen October 2026
  7. We read the Massachusetts Registered Agent.co pricing page on November 13, 2026
  8. We read the MA Registered Agent.org pricing page on November 13, 2026
  9. We read the Mainstay Filing Massachusetts service page on November 13, 2026