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LLC SchoolhousePlain LLC lessons, one state at a time.

Lesson 3 · New Hampshire

Foreign LLC Registration in New Hampshire (2026): a 4-Step Lesson and the 3 Best Services

If you want help registering an LLC from another state in New Hampshire during 2026, our graded list reads Mainstay Filing ($199), NH Registered Agent.org ($199) and New Hampshire Registered Agent.co ($199). 4 steps and a $100 filing fee are all that stand between you and registration.

Before you begin

Filing fee$100Checked against sos.nh.gov, October 2026
Annual filing$100Annual report
What the state collects in three years$300Before service fees
Steps4One at a time

You will be able to

  • Who has to register
  • How the filing works
  • What it costs to stay registered
  • The services we recommend

Who we would hire in New Hampshire

The order follows five published criteria; read how we grade for the details.
Start here

1. Mainstay Filing: best for companies adding a state

$199 plus the $100 state fee, then $149 a year

Mainstay Filing comes first, and here is why: $199 beyond the state fee, with the registered agent free in year one and $149 a year afterward.

Three years here cost $100 more than NH Registered Agent.org, in return for doing more of the work.

From year two the agent is $149 a year, wherever you register.

What the price covers

  • The registration filing
  • The registered agent costs nothing in year one
  • All fifty states

Marks in its favor

  • Year-one agent included
  • Covers all fifty states
  • $199 above the state fee

Where it loses points

  • A renewal $50 over NH Registered Agent.org's
Local choice

2. NH Registered Agent.org: best for an inexpensive New Hampshire filing

$199 plus the $100 state fee, then $99 a year

For number 2 we picked NH Registered Agent.org: $199 added to the state fee, with the agent covered in year one, then $99 a year.

What the price covers

  • The filing is done for you
  • One year of agent service

Marks in its favor

  • Then $99 a year
  • A free first agent year
  • $199 to register

Where it loses points

  • No help in other states
Local choice

3. New Hampshire Registered Agent.co: best for registering only in New Hampshire

$199 plus the $100 state fee, then $99 a year

For number 3 we picked New Hampshire Registered Agent.co: $199 added to the state fee, with the agent covered in year one, then $99 a year.

NH Registered Agent.org and this service charge the same.

What the price covers

  • The filing is done for you
  • One year of agent service

Marks in its favor

  • A free first agent year
  • Then $99 a year
  • $199 to register

Where it loses points

  • No help in other states

The 3 graded picks compared

#ServiceFirst yearFrom year twoThree-year total
1Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
2NH Registered Agent.org$199$99/yr$397Visit NH Registered Agent.orgPartner link. We may earn money if you buy.
3New Hampshire Registered Agent.co$199$99/yr$397Visit New Hampshire Registered Agent.coPartner link. We may earn money if you buy.
Each company's listed price on November 13, 2026. The $100 state fee is extra in every row.

Registering in New Hampshire, one step at a time

  1. Step
    1

    Confirm that you must register

    Doing business in New Hampshire through an LLC from another state calls for a foreign registration. Without registration: Its contracts remain valid (RSA 304-C:180, II(a)). Back fees apply too.

    Where this comes from: Checked against gc.nh.gov, October 2026

  2. Step
    2

    Appoint a registered agent in New Hampshire

    Every LLC must name a registered agent with an in-state street address. The address has to be a physical street address in New Hampshire; filings that list an out-of-state address are not processed. P.O. boxes are not accepted.

    The services in our list provide this.

    Where this comes from: Checked against gc.nh.gov, October 2026

  3. Step
    3

    Hand in the Application for Registration as a Foreign Limited Liability Company

    What the New Hampshire Secretary of State, Corporation Division needs from you is the filing named above and a $100 fee.

    Where this comes from: Checked against sos.nh.gov, October 2026

  4. Step
    4

    After you register

    Your next obligation is the annual report at $100, April 1.

The cost of this lesson

StepGoes toAmount
Registration feePaid to the state$100
Annual reportPaid to the state$100
Service fees (optional)Your service$199 for year one
State fees for three yearsPaid to the state$300
Three-year state total: the filing, plus reports in years two and three, plus any minimum tax. Sources are below.

Why Mainstay Filing comes first

edged ahead of on homework the price handles, which counts for 33%.

Because the LLC was formed somewhere else, a provider able to serve the home state and this one earned the best grade.

Questions students ask

What does New Hampshire charge for registering a foreign LLC?

$100 to the state. A service adds $199.

Which form do I file to register?

Look for the Application for Registration as a Foreign Limited Liability Company (Form FLLC-1); you deliver it to the New Hampshire Secretary of State, Corporation Division.

What if the LLC does business there without registering?

Its contracts remain valid (RSA 304-C:180, II(a)). Back fees apply too.

What is due after registering?

Keep the registration alive by filing the annual report; the fee is $100.

Which services are in this lesson?

The picks are Mainstay Filing, NH Registered Agent.org and New Hampshire Registered Agent.co; the prices are in the table above.

Which service should handle the registration?

We would pick Mainstay Filing, because it files the New Hampshire registration for $199 plus the state fee and covers the first agent year. After that, NH Registered Agent.org and New Hampshire Registered Agent.co.

Class references

  1. Source for New Hampshire Secretary of State, Corporations Division: sos.nh.gov, confirmed in August 2026, and the reason our figures match the official ones.
  2. Source for New Hampshire Secretary of State, Corporations Division: sos.nh.gov, confirmed in August 2026, and the reason our figures match the official ones.
  3. Source for New Hampshire report due date: gencourt.state.nh.us, confirmed in August 2026, and the reason our figures match the official ones.
  4. Source for N.H: gc.nh.gov, confirmed in August 2026, and the reason our figures match the official ones.
  5. Source for New Hampshire formation fee: Filing fee, official source: gc.nh.gov, confirmed in October 2026, and the reason our figures match the official ones.
  6. Source for New Hampshire registered agent statute: gc.nh.gov, confirmed in October 2026, and the reason our figures match the official ones.
  7. Source for Form FLLC-1: sos.nh.gov, confirmed in October 2026, and the reason our figures match the official ones.
  8. Source for RSA 304-C:174, activities that do not count: gc.nh.gov, confirmed in October 2026, and the reason our figures match the official ones.
  9. Source for RSA 304-C:175, registration: gc.nh.gov, confirmed in October 2026, and the reason our figures match the official ones.
  10. Source for RSA 304-C:180, effect of not registering: gc.nh.gov, confirmed in November 2026, and the reason our figures match the official ones.
  11. November 13, 2026: the New Hampshire service page for Mainstay Filing
  12. November 13, 2026: the pricing page for NH Registered Agent.org
  13. November 13, 2026: the pricing page for New Hampshire Registered Agent.co