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Formation ClassClass is in session: LLC paperwork, state by state.

Session 3 · Mississippi

Foreign LLC Registration Class, Mississippi (2026): 5 Assignments and the 3 Best Services

For registering an LLC from another state in Mississippi in 2026, the class favorites are Registered Agent MS.org ($199), Mainstay Filing ($199) and Mississippi Registered Agent.co ($199), graded from first to last. The class's 5 assignments cover the filing, the $250 fee and what you owe afterward.

Class overview

State filing fee$250sos.ms.gov (page read October 2026)
Home-state certificate180 daysNo older than
Maintenance filing$250Foreign LLC annual report
Three-year state cost$750State charges only
Assignments in this class5In order

Class objectives

  • When an LLC from elsewhere must register in Mississippi
  • How the filing gets made
  • The upkeep that repeats
  • The services at the top of the class

If you want someone else to file

Five weighted criteria set the order (see how we grade), and three-year tuition and homework done count most.
Highest grade

1. Registered Agent MS.org: best for adding just Mississippi

Service $199, renewal $99 a year

Registered Agent MS.org earns the top grade in Mississippi: $199 above the state fee to register, then $99 a year.

Its three-year bill is lower than Mainstay Filing's, which wins first place because tuition counts 30%.

Covered by the tuition

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

Strengths

  • A $199 service charge
  • $99 a year for the agent after that
  • No agent fee in year one

Weak spots

  • No help in other states
All fifty states

2. Mainstay Filing: best for a string of registrations

Service $199, renewal $149 a year

Our second pick, Mainstay Filing: $199 on top of the state fee in any state, with year one of the agent included.

Registered Agent MS.org undercuts it by $100 over three years, which keeps this one out of first.

After year one, agent service costs $149 a year.

Covered by the tuition

  • The registration filing
  • The registered agent costs nothing in year one
  • One fee wherever you register

Strengths

  • No agent fee for year one
  • One price anywhere
  • $199 on top of Mississippi's fee

Weak spots

  • A pricier agent renewal ($149)
One-state plan

3. Mississippi Registered Agent.co: best for Mississippi-only registrations

Service $199, renewal $99 a year

Our third pick, Mississippi Registered Agent.co: $199 above the state fee to register, then $99 a year.

On price, it is level with Registered Agent MS.org.

Covered by the tuition

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

Strengths

  • $99 a year for the agent after that
  • No agent fee in year one
  • A $199 service charge

Weak spots

  • No help in other states

All the tuition in one table

#ServiceFirst yearFrom year twoThree-year total
1Registered Agent MS.org$199$99/yr$397Visit Registered Agent MS.orgPartner link. We may earn money if you buy.
2Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
3Mississippi Registered Agent.co$199$99/yr$397Visit Mississippi Registered Agent.coPartner link. We may earn money if you buy.
Listed prices, read November 13, 2026. Add the $250 state fee to every row.

The assignments

  1. Assignment
    1

    Does the rule apply to you?

    When an LLC from elsewhere starts operating in Mississippi, foreign registration is the way in. What happens when an LLC operates unregistered: If you may need to sue, register first (Miss. Code Ann. 79-29-1013(1)). Contracts it has already signed still hold (Miss. Code Ann. 79-29-1013(2)). A daily penalty of $10.

    Textbook page: sos.ms.gov (page read October 2026)

  2. Assignment
    2

    Ask your home state for proof of good standing

    Get certificate of good standing or existence, dated within 180 days.

    Do this one last, so the certificate is fresh on the day you file.

  3. Assignment
    3

    Choose the Mississippi registered agent

    Every LLC must name a registered agent with an in-state street address. The address has to be a physical Mississippi street address that is the agent's business office. P.O. boxes are not accepted.

    Any of the graded services can fill this seat.

    Textbook page: sos.ms.gov (page read October 2026)

  4. Assignment
    4

    Draw up the Application for Registration of Foreign Limited Liability Company

    the Mississippi Secretary of State, Business Services is the office that wants the filing above plus $250.

    Textbook page: sos.ms.gov (page read October 2026)

  5. Assignment
    5

    What comes after

    The repeat assignment is the Foreign LLC annual report, $250, April 15.

Costs, assignment by assignment

ItemPaid toSum
The registration assignmentState office$250
Foreign LLC annual reportState office$250
Optional serviceThe service company$199 at the start
Three-year state totalState office$750
Rows for the state use Mississippi's published fee schedules (see the textbook pages beneath the table), and each service row uses that company's own price. Over three years the state row adds the filing, the year-two report, the year-three report and any minimum tax.

Why the list runs this way

On tuition across three years (30% of the grade) came out on top, with close behind.

Registered Agent MS.org comes to $397 across three years, a saving of $100 next to Mainstay Filing.

Short answers

What will it cost to register a foreign LLC in Mississippi?

$250 as the official fee. The services here charge $199 extra.

Which form do I file to register?

Fill in the form named in assignment 4 and send it to the Mississippi Secretary of State, Business Services.

Do I need a certificate from my home state?

Yes: certificate of good standing or existence, issued within 180 days of filing.

What if the LLC does business there without registering?

If you may need to sue, register first (Miss. Code Ann. 79-29-1013(1)). Contracts it has already signed still hold (Miss. Code Ann. 79-29-1013(2)). A daily penalty of $10.

What is due after registering?

Next is the Foreign LLC annual report at $250.

Which service should handle the registration?

The grade order is Registered Agent MS.org, Mainstay Filing and Mississippi Registered Agent.co, and Registered Agent MS.org is first since registration costs $199 plus state fees, and the first agent year is already paid.

Textbook pages and extra reading

  1. If you want proof of the Mississippi Secretary of State, Business Services Division facts, sos.ms.gov is the page to read, and we last read it in August 2026.
  2. If you want proof of the Mississippi Secretary of State, Business Services Division facts, sos.ms.gov is the page to read, and we last read it in August 2026.
  3. If you want proof of the Mississippi yearly filing: Annual report: fee, official source facts, sos.ms.gov is the page to read, and we last read it in October 2026.
  4. If you want proof of the Miss facts, sos.ms.gov is the page to read, and we last read it in August 2026.
  5. If you want proof of the Mississippi registered agent statute facts, sos.ms.gov is the page to read, and we last read it in October 2026.
  6. If you want proof of the Mississippi Secretary of State, Business Services facts, sos.ms.gov is the page to read, and we last read it in October 2026.
  7. If you want proof of the Business filing fee schedule facts, sos.ms.gov is the page to read, and we last read it in October 2026.
  8. If you want proof of the Start Your Business in Mississippi facts, sos.ms.gov is the page to read, and we last read it in October 2026.
  9. Registered Agent MS.org's pricing page, read on November 13, 2026
  10. Mainstay Filing's Mississippi service page, read on November 13, 2026
  11. Mississippi Registered Agent.co's pricing page, read on November 13, 2026