Formation MathLLC service costs, worked out step by step.
Registered agent worksheets · Maine
3 Best Registered Agents in Maine (2026): Worked Prices
After the sums, Mainstay Filing ($149/yr), Maine Registered Agent.co ($99/yr) and ME Registered Agent.org ($99/yr) lead the 2026 Maine table of registered agents, in that order. One year: $99 to $149. Three years: $297 to $447.
Worked by the Formation Math editorial team
↓ Sorted by:Cost first (42%), items covered second (28%), three smaller checks after. See the working
Each state row cites its official source. The 3-year total adds the filing, the year-2 and year-3 reports and any minimum tax.
Why row one is row one
Mainstay Filing wins items covered per dollar, worth 28%, with Maine Registered Agent.co close behind.
On coverage across states, Maine Registered Agent.co cannot match it.
Maine registered agent rules, from the source (Maine Secretary of State)
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. (5 M.R.S. § 105)
A noncommercial agent lists a physical street address in Maine, not a P.O. box. Commercial agents keep their address on file with the state.