LLC Review Desk's 2026 picks for registered agents in Massachusetts, favorite first, are Mainstay Filing ($149 a year), MA Registered Agent.org ($99 a year) and Massachusetts Registered Agent.co ($99 a year). Mainstay Filing is our favorite, because it's $149 a year and the price doesn't climb at renewal, plus papers served on the company get scanned the same business day for free.
By the LLC Review Desk editorial team
Position 1
Our top pick
1. Mainstay Filing: best for all fifty states
$149 a year, the same each year
Our score
9.6out of 10
9.6 out of 10
Our favorite is Mainstay Filing, because one plan, $149 a year, follows the company to any state and renews at $149.
Starting from scratch? The $199 yearly package adds the Massachusetts filing and the annual report.
Over three years it costs $150 more than MA Registered Agent.org, and for us the extra things it handles are worth that.
In the price
A street address on the public record in your state
Legal papers served on the company are scanned within the business day at no cost
The first three government mailings you receive each year are scanned for free
Compliance reminders
What we like
Fine for LLCs, corporations, LPs, LLPs and nonprofits
$149 a year and it stays flat
Same-business-day scans of papers served on the company, no charge
Your first three government letters each year, scanned for free
Trade-offs
The agent plan alone is $50 a year more than MA Registered Agent.org
Unless you buy the formation package, you file the annual report yourself
2. MA Registered Agent.org: best for the smallest yearly price on this list
$99 a year, the same each year
Our score
9.1out of 10
9.1 out of 10
Coming in second is MA Registered Agent.org, because it focuses on Massachusetts at $99 a year and gives you an in-state street address for the registered office.
MA Registered Agent.org lists its own in-state street address as your company's registered office and scans served legal papers for you.
In the price
A state street address listed as your registered office
The company's served papers show up in your account as scans
What we like
$99 a year, and it stays the same at renewal
Beats Mainstay Filing on yearly cost
Formation comes with a free first agent year
Trade-offs
The Limited Liability Company Annual Report is a job that stays with you
Built for Massachusetts; other states need another agent
3. Massachusetts Registered Agent.co: best for Massachusetts specialists
$99 a year, the same each year
Our score
8.9out of 10
8.9 out of 10
In third place is Massachusetts Registered Agent.co, because it focuses on Massachusetts at $99 a year and gives you an in-state street address for the registered office.
The registered office you get is Massachusetts Registered Agent.co's address inside the state, and you read whatever is served on the company as a scan online.
Price and features don't set MA Registered Agent.org apart from Massachusetts Registered Agent.co; pick the one you like.
In the price
The in-state street address the state requires
You open served legal papers online as scans
What we like
$99 annually with no renewal bump
A lower yearly price than Mainstay Filing
Also forms LLCs, first agent year included
Trade-offs
The Limited Liability Company Annual Report is a job that stays with you
Built for Massachusetts; other states need another agent
Every score out of 10 is our editors' call, made with the weighted criteria on How we rank, not a customer rating.
What Massachusetts registered agents cost in 2026: year one, renewals and three years
Service
First year
Second year
Third year
Three-year total
Same price when you renew
Mainstay Filing
$149
$149
$149
$447
Yes
MA Registered Agent.org
$99
$99
$99
$297
Yes
Massachusetts Registered Agent.co
$99
$99
$99
$297
Yes
We took each price from the company's own pages on November 12, 2026. Massachusetts's own fees stay the same no matter which agent you choose.
Why we put Mainstay Filing first
LLC Review Desk gives three-year cost 29% and filings in the price 29%, then divides 42% among renewal price, state fit and up-front totals. For Massachusetts, it came down to filings in the price.
Mainstay's plan does more: it scans papers served on the company the same business day, free, and the price is the same in all fifty states, with three government letters a year scanned at no charge. MA Registered Agent.org costs less, so it's a close race.
You can read every criterion and weight on How we rank.
What Massachusetts says about the resident agent (via Massachusetts Secretary of State)
Every LLC must name a registered agent with an in-state street address. The address has to be a street address in Massachusetts. A post office address is not sufficient. The law: M.G.L. c. 156C, § 5.
The Massachusetts Limited Liability Company Annual Report: when and how much
Here's the schedule: the Limited Liability Company Annual Report is due every year in Massachusetts, by on or before the anniversary date of filing of the certificate of organization. It costs $500. Reminders from the state go to your resident agent.
Your questions about Massachusetts registered agents
Do I really need a resident agent for a Massachusetts LLC?
You do. Massachusetts won't accept an LLC without a resident agent who has a street address in the state, and that name goes on the public record.
What do Massachusetts registered agents usually cost per year?
Plan on $99 to $149 a year, and each service keeps its price when you renew.
Can I be my own resident agent?
Sometimes, if you meet the state's rules. 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.
When do I have to send in the Massachusetts Limited Liability Company Annual Report?
Mark on or before the anniversary date of filing of the certificate of organization on your calendar. The state's charge is $500.
Which registered agents did we review here?
Mainstay Filing ($149 a year), MA Registered Agent.org ($99 a year) and Massachusetts Registered Agent.co ($99 a year), with our favorite first.
Who is the best registered agent for Massachusetts?
Mainstay Filing, because you pay $149 a year whether you stay in one state or grow, and your first three government letters each year are scanned free.