3 Best LLC Services in Maine (2026), Ranked for You
Your 2026 shortlist for LLC formation services in Maine reads Mainstay Filing ($199), Maine Registered Agent.co ($199) and ME Registered Agent.org ($199), in our order. Every option pays the same $175 filing fee, and three years of service cost $397 to $597.
Written by the Simple Filing Guide editorial team
Four facts to know
Formation fee
$175, a single payment
Later years
$85 on a yearly schedule
Registered agent
Required
Recommended
Mainstay Filing, Maine Registered Agent.co then ME Registered Agent.org
1. Mainstay Filing: best for one price for formation and upkeep
$199 a year plus $175 for the state
Mainstay Filing takes the top spot, since its $199 yearly price pays for forming the LLC, serving as the registered agent and filing the annual report, and renews at $199.
Across three years this costs $200 above Maine Registered Agent.co, and in return you hand off more filings.
It files your annual report and passes along the state's $85 at cost.
Checklist: what is included
LLC formation filed with the state
Registered agent for twelve months
Annual report filed for you
EIN taken care of
Official fee at cost
What works
$199 a year with no add-ons needed
Takes care of the EIN step
Renewal price is $199
Gaps
Renewal runs $100 a year above Maine Registered Agent.co
Company prices from November 13, 2026, before state fees.
What to know before you file
How much money do I need to set aside?
On your own it is $175. With a service, it is $199 more.
By the end of year three, you will have paid the state $345. legislature.maine.gov, last confirmed October 2026 for this guide
Where do I send the formation paperwork?
Submit the Certificate of Formation (Form MLLC-6) to the Maine Secretary of State and wait for approval.
Turnaround, per the state: 10 to 15 business days (home page). legislature.maine.gov, last confirmed October 2026 for this guide
Is naming a registered agent a legal duty?
Every LLC must name a registered agent with an in-state street address.
A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual or entity serving as agent in Maine, or the holder of a named position in the company.
maine.gov, last confirmed August 2026 for this guide
Three-year state total
$345
Added 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.
Also asked
How long until the LLC exists?
10 to 15 business days (home page).
Who handles the EIN?
Budget $99 for Maine Registered Agent.co or $99 for ME Registered Agent.org to get an EIN, and nothing extra at Mainstay Filing.
Does a late report cost extra?
Maine adds $50 for lateness.
How do the three-year costs compare?
Three-year costs: Mainstay Filing, $597; Maine Registered Agent.co, $397; ME Registered Agent.org, $397, not counting state fees.
What are the numbers based on?
Official Maine sources back the state side and company pricing backs the service side, all dated.
Which one do you recommend in Maine?
Mainstay Filing comes first: a single price of $199 a year includes the formation, the registered agent and each annual report. Next, Maine Registered Agent.co and ME Registered Agent.org.
References
Maine Secretary of State [maine.gov] last confirmed August 2026
Maine Secretary of State [maine.gov] last confirmed August 2026
Maine report due date [maine.gov] last confirmed August 2026