Foreign registration ratings · Massachusetts
3 Best Foreign Registration Services in Massachusetts (2026)
1. Mainstay Filing: best for companies registered in more than one state
$199 plus the state fee, then the agent at $149 a year after year one
Mainstay Filing is rated first: $199 plus state fees in any state, first-year resident agent service included.
Year one of agent service costs nothing, and afterward the agent is $149 a year in whichever state.
On three-year sums Mainstay is $100 above Massachusetts Registered Agent.co; the wider coverage justifies that gap in the rating.
What you get
- Foreign registration filed on your behalf
- Free scan-and-upload of papers served, the day they arrive
Pros
- The same amount in all fifty states
- Same-business-day scans of service of process, no fee
- $199 service fee, state fee separate
Trade-offs
- Agent renewal of $149 is $50 over Massachusetts Registered Agent.co
2. Massachusetts Registered Agent.co: best for adding Massachusetts and nothing else
Service fee $199, state fee on top; agent $99 a year after that
Massachusetts Registered Agent.co is rated second: $199 plus the state fee, year-one resident agent service included, then $99 a year for the agent.
The plan lists an in-state street address as the registered office and scans papers served there into your account.
What you get
- Foreign registration done for you
- First-year resident agent service
Pros
- $99 per year to keep the agent
- A year of resident agent service is in the price
- A $199 registration amount before the state fee
Trade-offs
- Massachusetts only; your home state needs its own agent
- EIN application billed at $99
3. MA Registered Agent.org: best for Massachusetts registrations only
Service fee $199, state fee on top; agent $99 a year after that
MA Registered Agent.org is rated third: $199 plus the state fee, year-one resident agent service included, then $99 a year for the agent.
The plan lists an in-state street address as the registered office and scans papers served there into your account.
On amounts and features alone, Massachusetts Registered Agent.co and MA Registered Agent.org are the same, which makes the order between them a close call.
What you get
- Foreign registration done for you
- The first year as your resident agent
Pros
- Registration line of $199, plus the state's fee
- Includes year one as your resident agent
- $99 a year for the agent after year one
Trade-offs
- Massachusetts only; your home state needs its own agent
- EIN application billed at $99
The 3 ratings summarized
| Line | Service | Rating | Service fee | Year two | Best for | Open |
|---|---|---|---|---|---|---|
| 1 | Mainstay Filing | 9.5 | $199 | $149/yr | Companies that register in several states | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 2 | Massachusetts Registered Agent.co | 9.2 | $199 | $99/yr | The lowest agent renewal we rank here | Visit Massachusetts Registered Agent.coPartner link. We may earn money if you buy. |
| 3 | MA Registered Agent.org | 9.0 | $199 | $99/yr | The lowest agent renewal we rank here | Visit MA Registered Agent.orgPartner link. We may earn money if you buy. |
Massachusetts foreign registration service amounts for 2026: year one, renewal and three-year sum
| Service | Year one | Year two | Year three | Three-year sum | Agent paid for year one |
|---|---|---|---|---|---|
| Mainstay Filing | $199 | $149 | $149 | $497 | Not stated |
| Massachusetts Registered Agent.co | $199 | $99 | $99 | $397 | Included |
| MA Registered Agent.org | $199 | $99 | $99 | $397 | Included |
Reasoning behind the order
Formation Rated puts 27% on cost over years one to three, 27% on inclusions per price and the other 46% on renewal price and terms, fit with state rules and price clarity. In Massachusetts the order came down to inclusions per price.
A foreign registration involves two states, and one provider with one amount in both rated highest on coverage, ahead of Massachusetts Registered Agent.co.
Each criterion and its weight is listed on How we rank.
Massachusetts foreign LLC registration: amount, form and office
A company from another state registers by lodging the Foreign Limited Liability Company Application for Registration (General Laws Chapter 156C, Section 48) with the Massachusetts Secretary of the Commonwealth, Corporations Division; the state amount is $500. Massachusetts also needs certificate of legal existence or good standing, issued inside 90 days of the filing.
Registration adds one recurring line: the Foreign LLC annual report ($500), due anniversary of registration.
Have these ready
- Certificate of legal existence or good standing, issued within 90 days before the filing.
- Home-state legal name, spelled exactly, and the formation date.
- An in-state resident agent; every service rated here can fill the role.
- $500 to the state, paid with the filing.
- The date of the Foreign LLC annual report and its $500 fee on your calendar.
What skipping Massachusetts registration costs
An unregistered outside LLC may not sue in Massachusetts courts until it registers (G.L. c. 156C, 54(a)). Contracts it signs remain valid (G.L. c. 156C, 54(a)).
Massachusetts foreign registration service: your questions
Is registration compulsory for an outside LLC doing business in Massachusetts?
Yes, once it does business there. An unregistered company cannot bring suit in the state's courts.
What are the costs of foreign registration in Massachusetts?
$500 to the state plus $199 to the service.
Must the filing include a home-state certificate for Massachusetts?
Yes: certificate of legal existence or good standing, with an issue date within 90 days.
Must a resident agent stay on file after registering?
Yes. A resident agent with a street address in the state stays on record.
Which foreign registration services are rated on this page?
Mainstay Filing ($199), Massachusetts Registered Agent.co ($199) and MA Registered Agent.org ($199), highest rated first.
Which foreign registration service holds the top rating in Massachusetts?
Mainstay Filing, as $199 on top of the state's fee, with year one as resident agent free and the same amount in every state.
Source lines
- Massachusetts Secretary of the Commonwealth (ledger date August 2026)
- Massachusetts Secretary of the Commonwealth (ledger date August 2026)
- M.G.L. c. 156C, sec. 12 (ledger date August 2026)
- Massachusetts formation fee: Filing fee, official source (ledger date October 2026)
- Massachusetts formation fee: Filing fee, official source (ledger date October 2026)
- Massachusetts registered agent statute (ledger date October 2026)
- Massachusetts Corporations Division, foreign LLC page (ledger date October 2026)
- G.L. c. 156C § 48, foreign LLC registration (ledger date October 2026)
- G.L. c. 156C § 54, failure to register (ledger date October 2026)
- G.L. c. 156D § 15.01, transacting business (ledger date October 2026)
- Mainstay Filing, Massachusetts service page: amounts read November 12, 2026
- Massachusetts Registered Agent.co, pricing and service pages: amounts read November 12, 2026
- MA Registered Agent.org, pricing and service pages: amounts read November 12, 2026