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A practical guide · Massachusetts

3 Best Foreign Registration Services in Massachusetts (2026): Where to Start

Your 2026 shortlist for foreign registration services in Massachusetts reads Massachusetts Registered Agent.co ($199), Mainstay Filing ($199) and MA Registered Agent.org ($199), in our order. Set aside $500 for Massachusetts to register, and $397 to $497 for services over three years.
Written by the Simple Filing Guide editorial team

Four facts to know

Registration fee
$500
Attach a certificate?
Required (90 days maximum age)
Ongoing
$500, Foreign LLC annual report
Recommended
Massachusetts Registered Agent.co, Mainstay Filing then MA Registered Agent.org

Recommended in Massachusetts

Prices come from each company's own page. Read how we rank for the method.

#1 Top pick

1. Massachusetts Registered Agent.co: best for registering in this state only

Pay $199 to register and $99 for the agent after

Massachusetts Registered Agent.co is our first recommendation because registering costs $199 over the state fee, agent covered in year one, then $99 a year.

Compare the three-year totals: it lands under Mainstay Filing, and cost is the check we weigh most.

Checklist: what is included
  • Foreign filing submitted
  • Agent included in year one
What works
  • No agent charge in year one
  • $199 plus the state fee
  • A modest renewal of $99
Gaps
  • You need another company for your home state
Start with Massachusetts Registered Agent.co Partner link. We may earn money if you buy.
#2 All fifty states

2. Mainstay Filing: best for the same fee everywhere

Pay $199 to register and $149 for the agent after

Why Mainstay Filing second? Because registering costs $199, with no resident agent charge until year two.

Check the gap: it costs $100 more than Massachusetts Registered Agent.co over three years, and cost carries the most weight.

There is no resident agent fee in year one; from year two it is $149 a year.

Checklist: what is included
  • Out-of-state registration handled
  • One service fee for all fifty states
What works
  • Service fee of $199
  • Identical fee in every state
Gaps
  • Agent renewal of $149 is $50 above Massachusetts Registered Agent.co
Start with Mainstay Filing Partner link. We may earn money if you buy.
#3 Massachusetts only

3. MA Registered Agent.org: best for a low agent renewal

Pay $199 to register and $99 for the agent after

MA Registered Agent.org follows since registering costs $199 over the state fee, agent covered in year one, then $99 a year.

Its prices match Massachusetts Registered Agent.co exactly, so compare service before you choose.

Checklist: what is included
  • Foreign filing submitted
  • Agent included in year one
What works
  • No agent charge in year one
  • A modest renewal of $99
  • $199 plus the state fee
Gaps
  • You need another company for your home state
Start with MA Registered Agent.org Partner link. We may earn money if you buy.

Price comparison

#ProviderFirst-year priceAt renewalThree-year costIncluded
1 Massachusetts Registered Agent.co $199$99/yr$397foreign filing submitted; agent included in year one Start with Massachusetts Registered Agent.co Partner link. We may earn money if you buy.
2 Mainstay Filing $199$149/yr$497Out-of-state registration handled; one service fee for all fifty states Start with Mainstay Filing Partner link. We may earn money if you buy.
3 MA Registered Agent.org $199$99/yr$397foreign filing submitted; agent included in year one Start with MA Registered Agent.org 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.

The key questions

Who must register in this state?

Do the registration first and the business second when an LLC from elsewhere enters Massachusetts.

An unregistered LLC may face it cannot sue in Massachusetts courts until it registers (G.L. c. 156C, 54(a)).

sec.state.ma.us, last confirmed October 2026 for this guide

How much does registration cost?

Doing it yourself costs $500. With a service, add $199.

Over three years the state's fees reach $1,500, counting any recurring report. sec.state.ma.us, last confirmed October 2026 for this guide

Where does the registration go?

You need one form, the Foreign Limited Liability Company Application for Registration (General Laws Chapter 156C, Section 48), and the Massachusetts Secretary of the Commonwealth, Corporations Division is where it goes.

Attach certificate of legal existence or good standing no older than 90 days.

Is there a filing that repeats?

After registering, expect the Foreign LLC annual report: $500.

Filings come due anniversary of registration.

What decided the ranking?

Total for three years, at 37%, puts Massachusetts Registered Agent.co first.

64% of the score comes from total for three years and filing jobs included.

$397 for three years at Massachusetts Registered Agent.co is $100 under Mainstay Filing.

How we rank

Massachusetts registration checklist

StepWhat to knowVerify
Cost to register $500sec.state.ma.us, last confirmed October 2026 for this guide
Proof of existence Required, 90 dayssec.state.ma.us, last confirmed October 2026 for this guide
Foreign LLC annual report $500sec.state.ma.us, last confirmed October 2026 for this guide
Paid to the state by year three $1,500Added from the rows

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.

Related questions

What about the state where I formed the LLC?

You do: two states mean two sets of rules, and one-state services stop at the border while Mainstay Filing does not.

Over three years, what does each charge?

Massachusetts Registered Agent.co $397; Mainstay Filing $497; MA Registered Agent.org $397, and state fees are separate.

Where do you get the fees?

Official Massachusetts documents supply the state fees, and the companies' own pricing pages supply the service fees. Both carry dates on this page.

Is a service required by law?

If you meet the rules on this page, you can file on your own, and the state charges the same either way.

Do these companies handle the filing?

Yes. Every pick prepares and files it, and the state fee is the same whichever you choose.

Which foreign registration service should I start with in Massachusetts?

Choose Massachusetts Registered Agent.co first, then compare Mainstay Filing and MA Registered Agent.org.

Sources and price pages

  1. Massachusetts Secretary of the Commonwealth [sec.state.ma.us] last confirmed August 2026
  2. Massachusetts Secretary of the Commonwealth [malegislature.gov] last confirmed August 2026
  3. M.G.L. c. 156C, sec. 12 [sec.state.ma.us] last confirmed August 2026
  4. Massachusetts formation fee: Filing fee [sec.state.ma.us] last confirmed October 2026
  5. Massachusetts formation fee: Filing fee [sec.state.ma.us] last confirmed October 2026
  6. Massachusetts registered agent statute [sec.state.ma.us] last confirmed October 2026
  7. Massachusetts Corporations Division, foreign LLC [sec.state.ma.us] last confirmed October 2026
  8. G.L. c. 156C § 48 [malegislature.gov] last confirmed October 2026
  9. G.L. c. 156C § 54 [malegislature.gov] last confirmed October 2026
  10. G.L. c. 156D § 15.01 [malegislature.gov] last confirmed October 2026
  11. pricing page from Massachusetts Registered Agent.co, checked November 13, 2026
  12. Massachusetts service page from Mainstay Filing, checked November 13, 2026
  13. pricing page from MA Registered Agent.org, checked November 13, 2026