3 Best Foreign Registration Services in Massachusetts (2026): Who to Ask First
Wondering about foreign registration services in Massachusetts, for 2026 our order is MA Registered Agent.org ($199), Mainstay Filing ($199) and Massachusetts Registered Agent.co ($199). The state fee is $500, the same for everyone, and three years of service fees run $397 to $497.
Answered by the Ask About LLC editorial team ·
The short answers
State fee to register
$500
Home-state certificate?
Yes, attach it (90 days old at most)
Once registered
$500, Foreign LLC annual report
Our pick
MA Registered Agent.org, Mainstay Filing then Massachusetts Registered Agent.co
Our Massachusetts answer, best first
The order follows our five questions: three-year cost first, then how much the price covers.
1Our first answer
1. MA Registered Agent.org: best for adding only this state
Registering costs $199, then $99 a year for the agent
MA Registered Agent.org comes first: three years of its service fees come to $397.
Put the totals side by side and this one is lower than Mainstay Filing; cost has the heaviest weight in our scoring.
Prices as of November 13, 2026. The state's own fees are in the checklist below.
Questions owners ask
When must an out-of-state LLC register here?
An LLC formed in another state registers with the Massachusetts Secretary of the Commonwealth, Corporations Division first, then does business in Massachusetts.
An unregistered LLC risks it cannot sue in Massachusetts courts until it registers (G.L. c. 156C, 54(a)).
Registering costs $500 at the state, plus $199 if you hire help.
By year three the state will have collected $1,500. sec.state.ma.us, read in October 2026 for this answer
Which form do I file, and with whom?
Send the Foreign Limited Liability Company Application for Registration (General Laws Chapter 156C, Section 48) to the Massachusetts Secretary of the Commonwealth, Corporations Division; the registration is complete when it accepts the filing.
Enclose certificate of legal existence or good standing dated no earlier than 90 days.
Is there a filing that repeats?
Down the road there is the Foreign LLC annual report, which costs $500.
When the filing is due, per the state: anniversary of registration.
Why is the list in this order?
On what you pay over three years, worth 33%, MA Registered Agent.org comes out ahead.
Two questions carry most of the weight, what you pay over three years (33%) and chores the price takes care of (29%), and three smaller ones follow.
MA Registered Agent.org totals $397 across three years, which is $100 under Mainstay Filing.
The last row is arithmetic, not a state figure: filing fee, plus the reports due in years two and three, plus a minimum tax where one applies. Open-ended costs stay out.
Questions people also ask
Do I still need an agent in my home state?
Yes, and the two states do not share a rule book. Mainstay Filing works in both, so one account can cover the home state and this one.
What do the picks cost over three years?
For three years you would pay $397 at MA Registered Agent.org, $497 at Mainstay Filing, $397 at Massachusetts Registered Agent.co, with state fees on top.
Where do these numbers come from?
Official Massachusetts sources back the state side, and posted company prices back the service side.
Do I have to use a service?
Hiring help is a convenience you pay for, never a legal duty.
Will a service file the registration for me?
Yes, filing is part of what each company on this page sells, and the state's fee is identical whoever sends it.
What is the best foreign registration service for Massachusetts?
MA Registered Agent.org, because registering costs $199 over the state fee, with the agent covered in year one, then $99 a year. After that, Mainstay Filing and Massachusetts Registered Agent.co.
Sources for this answer
Our answer on Massachusetts Secretary of the Commonwealth rests on sec.state.ma.us, a page we confirmed August 2026 and still point you to
Our answer on Massachusetts Secretary of the Commonwealth rests on malegislature.gov, a page we confirmed August 2026 and still point you to
Our answer on M.G.L. c. 156C, sec. 12 rests on sec.state.ma.us, a page we confirmed August 2026 and still point you to
Our answer on Massachusetts formation fee: Filing fee rests on sec.state.ma.us, a page we confirmed October 2026 and still point you to
Our answer on Massachusetts formation fee: Filing fee rests on sec.state.ma.us, a page we confirmed October 2026 and still point you to
Our answer on Massachusetts registered agent statute rests on sec.state.ma.us, a page we confirmed October 2026 and still point you to
Our answer on Massachusetts Corporations Division, foreign LLC rests on sec.state.ma.us, a page we confirmed October 2026 and still point you to
Our answer on G.L. c. 156C § 48 rests on malegislature.gov, a page we confirmed October 2026 and still point you to
Our answer on G.L. c. 156C § 54 rests on malegislature.gov, a page we confirmed October 2026 and still point you to
Our answer on G.L. c. 156D § 15.01 rests on malegislature.gov, a page we confirmed October 2026 and still point you to
The MA Registered Agent.org pricing page, as it stood on November 13, 2026
The Mainstay Filing Massachusetts service page, as it stood on November 13, 2026
The Massachusetts Registered Agent.co pricing page, as it stood on November 13, 2026