3 Best Foreign Registration Services in New Hampshire (2026): Prices Tracked
New Hampshire watchlist, 2026: New Hampshire Registered Agent.co ($199), NH Registered Agent.org ($199) and Mainstay Filing ($199) lead the foreign registration services, best value first. $100 goes to the state however you file; the service side adds $397 to $497 over three years.
Tracked by the Filing Price Watch editorial team
Ordered by:
Three-year cost counts for 37% and filings covered for 29%, with renewal movement, crossover year and price visibility making up the rest. How we track
Prices on the watchlist
What the state charges to register$100sos.nh.gov (pulled October 2026, noted here)
Year-one prices$199Service fees alone
Total after 3 years$397 to $497Year one and both renewals
State side, years 1 to 3$300Registration, reports, any minimum tax
Crossover yearLines stay apartSame order for ten years
Ranked picks
Service prices only. The $100 state fee applies to every service.
#Ordered byPrice in year 1Price at renewalThree-year spend
1
Number one
1. New Hampshire Registered Agent.co: best for a basic registration
$199 for registration, $99 for the agent after that
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
New Hampshire Registered Agent.co comes out on top. Three years of service fees come to $397.
A lower three-year total than Mainstay Filing earns it first place, since cost counts most.
Price covers
The New Hampshire registration filing
A year of agent service to begin with
Holds up
$199 to register
$99 yearly from year two
Year-one agent covered
Weak spots
Nothing outside this state
2
New Hampshire only
2. NH Registered Agent.org: best for a modest agent renewal
$199 for registration, $99 for the agent after that
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
NH Registered Agent.org takes spot 2 because three years of service fees come to $397.
It costs the same as New Hampshire Registered Agent.co.
Price covers
The New Hampshire registration filing
A year of agent service to begin with
Holds up
Year-one agent covered
$199 to register
$99 yearly from year two
Weak spots
Nothing outside this state
3
National
3. Mainstay Filing: best for adding states as you grow
$199 for registration, $149 for the agent after that
Price in year 1$199
Price after year 1$149/yr
Three-year spend$497
Mainstay Filing takes spot 3 because $199 on top of what New Hampshire charges, then $149 a year for the agent.
By year three it trails New Hampshire Registered Agent.co by $100.
No agent charge in year one; after that it is $149 a year.
Price covers
Registration sent to the state office
Registered agent is free in year one
A price that holds across states
Holds up
Same fee wherever you register
The first agent year is paid
$199 added to New Hampshire's fee
Weak spots
$50 above New Hampshire Registered Agent.co at renewal
Each line above links to the state's own page. Summing them gives the three-year state figure, which covers filing, years two and three of reporting and a minimum tax where there is one.
Why this order for New Hampshire
Tracked three-year cost gave New Hampshire Registered Agent.co the lead. It makes up 37% of the order, and filings covered by the price, renewal movement, crossover year and price visibility cover the remainder.
New Hampshire Registered Agent.co totals $397 by year three, which is $100 less than Mainstay Filing.
New Hampshire foreign LLC registration fee and rules, as written by the state
Out-of-state LLCs file the Application for Registration as a Foreign Limited Liability Company (Form FLLC-1) with the New Hampshire Secretary of State, Corporation Division and pay $100.
Operating without registering can mean back fees for the unregistered stretch.
The state says: gc.nh.gov (pulled October 2026, noted here)
The do-it-yourself total
Skip the services and New Hampshire still collects $300 across three years, while you fill out every form. Hiring help costs $397 to $497.
Short answers
How much does it cost to register a foreign LLC with New Hampshire?
$100 in state fees, with $199 more if you hire a service.
What do these services cost over three years?
The first year and two renewals total $397 to $497.
What form registers the LLC?
The registration is Application for Registration as a Foreign Limited Liability Company (Form FLLC-1), filed with the New Hampshire Secretary of State, Corporation Division.
What recurring filing comes after registration?
It is the annual report, at $100.
In what year does one service become pricier than another?
They do not cross within ten years, so no service overtakes another.
Which foreign registration service is the best value for New Hampshire?
New Hampshire Registered Agent.co is first, NH Registered Agent.org second, and Mainstay Filing third.