Unpacked · Massachusetts

3 Best Foreign Registration Services in Massachusetts (2026): Unpacked

Opened up for 2026, the foreign registration services in Massachusetts rank Mainstay Filing ($199), Massachusetts Registered Agent.co ($199) and MA Registered Agent.org ($199), best on top. Inside the cost: $500 goes to Massachusetts, and three years of service add $397 to $497.

Unpacked by the LLC Unpacked editorial teamUpdated November 13, 2026

Four things inside

Registration fee: $500
Certificate packed in?: Yes (90 day age cap)
Afterward: $500, Foreign LLC annual report
Top of the stack: Mainstay Filing, Massachusetts Registered Agent.co then MA Registered Agent.org

The Massachusetts stack, best on top

Curious about the order? The method is here.

Top of the stack

1. Mainstay Filing: best for adding state after state

$199 plus the state fee, then $149 a year

Mainstay Filing sits on top in Massachusetts because the price is $199 in every state, and the first resident agent year is inside it.

Is it the smallest bill? No. Massachusetts Registered Agent.co costs $100 less over three years, but only in Massachusetts.

The resident agent is not charged in year one and costs $149 a year after that, in any state.

Inside the price

The registration filing, included
The same fee in all fifty states

Inside, the good

Service fee of $199
The price does not change by state

Inside, the catch

Massachusetts Registered Agent.co renews its agent $50 lower

Massachusetts only

2. Massachusetts Registered Agent.co: best for registering in a single place

$199 plus the state fee, then $99 a year

Massachusetts Registered Agent.co sits second because it charges $199 with first-year agent service inside, then $99 annually.

Inside the price

Foreign filing handled
Agent included in year one

Inside, the good

Year one of the agent comes with it
$199 over the state fee
Then $99 yearly

Inside, the catch

Massachusetts only, so the home state needs its own agent

Massachusetts only

3. MA Registered Agent.org: best for another in-state option

$199 plus the state fee, then $99 a year

MA Registered Agent.org sits third because it charges $199 with first-year agent service inside, then $99 annually.

Its prices match Massachusetts Registered Agent.co exactly, so the order between them is close.

Inside the price

Foreign filing handled
Agent included in year one

Inside, the good

Year one of the agent comes with it
Then $99 yearly
$199 over the state fee

Inside, the catch

Massachusetts only, so the home state needs its own agent

Side by side

#	Company	Year one	Each year after	Three-year total	What is inside
1	Mainstay Filing	$199	$149/yr	$497	the registration filing, included; the same fee in all fifty states	Look inside Mainstay FilingPartner link. We may earn money if you buy.
2	Massachusetts Registered Agent.co	$199	$99/yr	$397	foreign filing handled; agent included in year one	Look inside Massachusetts Registered Agent.coPartner link. We may earn money if you buy.
3	MA Registered Agent.org	$199	$99/yr	$397	foreign filing handled; agent included in year one	Look inside MA Registered Agent.orgPartner link. We may earn money if you buy.

Service fees only, from company prices read November 13, 2026. State fees are the same whichever pick you open.

Layer by layer

Does my LLC from another state have to register?

Any LLC formed elsewhere should file its registration with the Massachusetts Secretary of the Commonwealth, Corporations Division ahead of its first Massachusetts transaction.

Inside the risk of skipping it: any claim it files in Massachusetts courts can be turned away (G.L. c. 156C, 54(a)).

peek at sec.state.ma.us, confirmed October 2026

What is inside the cost of registering?

The state charges $500, and a service adds $199.

Three years of state fees, registration included, stack up to $1,500. peek at sec.state.ma.us, confirmed October 2026

What registers the LLC?

Your LLC is registered when the Massachusetts Secretary of the Commonwealth, Corporations Division accepts the Foreign Limited Liability Company Application for Registration (General Laws Chapter 156C, Section 48).

Pack in certificate of legal existence or good standing dated no earlier than 90 days.

What is due after the LLC registers?

Expect the Foreign LLC annual report ($500).

The state frames the deadline as anniversary of registration.

What put number one on top?

Mainstay Filing is strongest on what is inside the price, a layer worth 29% of the score.

Five layers set the order: total across three years (34%), what is inside the price (29%), price laid out in the open (14%), how the renewal behaves (12%) and how far it reaches (11%).

Massachusetts Registered Agent.co serves Massachusetts only, so the home state would need someone else.

The five layers

Massachusetts: the registration checklist

Requirement	Amount or rule	Peek at source
Registration fee	$500	peek at sec.state.ma.us, confirmed October 2026
Certificate from home	Yes, 90 days	peek at sec.state.ma.us, confirmed October 2026
Foreign LLC annual report	$500	peek at sec.state.ma.us, confirmed October 2026
State fees, years one to three	$1,500	Our total of the rows above

The last row stacks the filing fee, the reports in years two and three and any minimum tax. A cost with no fixed amount, such as a newspaper notice, is explained above and kept out of the sum.

Also worth asking

Do I still need an agent in my home state?

Yes. Think of two separate rule books, your home state's and this one's. Mainstay Filing works in both, so a single account can serve the pair.

What do the picks cost over three years?

Mainstay Filing stacks up to $497, Massachusetts Registered Agent.co stacks up to $397, MA Registered Agent.org stacks up to $397, with state fees on top.

What do these numbers rest on?

The state-side figures were taken from Massachusetts's own publications, and the service prices from the price page each company posts. Dates for both appear on this page.

Does the law require one?

No law requires a service. It is a paid convenience.

Will a service file the registration for me?

Each company here handles the filing itself. What differs between them is only the service fee, since the state charges the same.

What is the best foreign registration service for Massachusetts?

Mainstay Filing, because the fee is $199 on top of Massachusetts's own, the resident agent is waived at first, and it settles at $149 a year. Then Massachusetts Registered Agent.co and MA Registered Agent.org.

What the page rests on

Unpacking Massachusetts Secretary of the Commonwealth led us to sec.state.ma.us, confirmed August 2026, which you can open yourself
Unpacking Massachusetts Secretary of the Commonwealth led us to malegislature.gov, confirmed August 2026, which you can open yourself
Unpacking M.G.L. c. 156C, sec. 12 led us to sec.state.ma.us, confirmed August 2026, which you can open yourself
Unpacking Massachusetts formation fee: Filing fee led us to sec.state.ma.us, confirmed October 2026, which you can open yourself
Unpacking Massachusetts formation fee: Filing fee led us to sec.state.ma.us, confirmed October 2026, which you can open yourself
Unpacking Massachusetts registered agent statute led us to sec.state.ma.us, confirmed October 2026, which you can open yourself
Unpacking Massachusetts Corporations Division, foreign LLC led us to sec.state.ma.us, confirmed October 2026, which you can open yourself
Unpacking G.L. c. 156C § 48 led us to malegislature.gov, confirmed October 2026, which you can open yourself
Unpacking G.L. c. 156C § 54 led us to malegislature.gov, confirmed October 2026, which you can open yourself
Unpacking G.L. c. 156D § 15.01 led us to malegislature.gov, confirmed October 2026, which you can open yourself
Mainstay Filing Massachusetts service page, read November 13, 2026
Massachusetts Registered Agent.co pricing page, read November 13, 2026
MA Registered Agent.org pricing page, read November 13, 2026