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LLC UnpackedEvery filing, unpacked: the fee, the form, the catch.

What is inside · Mississippi

3 Best Foreign Registration Services in Mississippi (2026), Opened Up

Our 2026 stack of foreign registration services in Mississippi, top to bottom: Mississippi Registered Agent.co ($199), Mainstay Filing ($199) and Registered Agent MS.org ($199). Inside the cost: $250 goes to Mississippi, and three years of service add $397 to $497.
Unpacked by the LLC Unpacked editorial team

Top layer

Registration fee
$250
Certificate from home?
Yes (180 days old at most)
Afterward
$250, Foreign LLC annual report
Our pick
Mississippi Registered Agent.co, Mainstay Filing then Registered Agent MS.org

Mississippi: ranked

Prices come from each company's own page. See how we open it up.
Top of the stack

1. Mississippi Registered Agent.co: best for adding only this state

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

Mississippi Registered Agent.co is first, and it charges $199 with first-year agent service inside, then $99 annually.

Its three-year cost is below Mainstay Filing's, and cost is the heaviest layer.

Inside the price

  • Foreign filing handled
  • A first year of agent service

Inside, the good

  • No agent charge in year one
  • Agent renews at $99
  • $199 over the state fee

Inside, the catch

  • Mississippi only, so the home state needs its own agent
All fifty states

2. Mainstay Filing: best for adding state after state

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

Mainstay Filing lands second, and the price is $199 in every state, and the first registered agent year is inside it.

Mississippi Registered Agent.co totals $100 less across three years, enough to outrank it.

After the free first year, the registered agent renews at $149.

Inside the price

  • The registration filing, included
  • Registered agent, not charged in year one
  • The same fee in all fifty states

Inside, the good

  • $199 on top of Mississippi's fee
  • The price does not change by state
  • A free first year of agent service

Inside, the catch

  • Mississippi Registered Agent.co renews its agent $50 lower
Mississippi only

3. Registered Agent MS.org: best for one added state, no more

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

What puts Registered Agent MS.org third: it charges $199 with first-year agent service inside, then $99 annually.

Its prices match Mississippi Registered Agent.co exactly, so the order between them is close.

Inside the price

  • Foreign filing handled
  • A first year of agent service

Inside, the good

  • Agent renews at $99
  • No agent charge in year one
  • $199 over the state fee

Inside, the catch

  • Mississippi only, so the home state needs its own agent

Side by side

#CompanyYear oneEach year afterThree-year totalWhat is inside
1Mississippi Registered Agent.co$199$99/yr$397foreign filing handled; A first year of agent serviceLook inside Mississippi Registered Agent.coPartner link. We may earn money if you buy.
2Mainstay Filing$199$149/yr$497the registration filing, included; registered agent, not charged in year one; the same fee in all fifty statesLook inside Mainstay FilingPartner link. We may earn money if you buy.
3Registered Agent MS.org$199$99/yr$397foreign filing handled; A first year of agent serviceLook inside Registered Agent MS.orgPartner link. We may earn money if you buy.
Read November 13, 2026. Three years means year one plus two renewals.

Layer by layer

When must an out-of-state LLC register here?

Any LLC formed elsewhere should file its registration with the Mississippi Secretary of State, Business Services ahead of its first Mississippi transaction.

What an unregistered LLC can run into: it loses the right to bring its own lawsuits in Mississippi (Miss. Code Ann. 79-29-1013(1)); an added fine for every day of $10.

sos.ms.gov holds the original, confirmed October 2026

What is inside the cost of registering?

Two parts: $250 to the state and $199 to a service.

Over three years the state's fees reach $750, counting any recurring report. sos.ms.gov holds the original, confirmed October 2026

Which form is inside the filing, and where does it go?

The Application for Registration of Foreign Limited Liability Company (Filing F0200) is the filing, and the Mississippi Secretary of State, Business Services receives it.

Pack in certificate of good standing or existence issued within the last 180 days.

What is due after the LLC registers?

Expect the Foreign LLC annual report ($250).

The state frames the deadline as April 15.

What put number one on top?

On total across three years (34%), Mississippi Registered Agent.co comes out ahead.

Two layers carry most of the weight, total across three years (34%) and what is inside the price (29%).

Three years at Mississippi Registered Agent.co cost $397, which is $100 below Mainstay Filing.

The five layers

Mississippi registration, unpacked

PartWhat is insidePeek at source
Registration fee$250sos.ms.gov holds the original, confirmed October 2026
Good standing certificateYes, 180 dayssos.ms.gov holds the original, confirmed October 2026
Foreign LLC annual report$250sos.ms.gov holds the original, confirmed October 2026
State fees, years one to three$750The rows above, stacked
The last row stacks the filing fee, the reports in years two and three and any minimum tax. A cost with no fixed amount, such as a newspaper notice, is explained above and kept out of the sum.

More boxes to open

Does the home state need its own agent?

Yes. Think of two separate rule books, your home state's and this one's. Mainstay Filing works in both, so a single account can serve the pair.

What do the picks cost over three years?

Mississippi Registered Agent.co stacks up to $397, Mainstay Filing stacks up to $497, Registered Agent MS.org stacks up to $397, services only.

Are the fees official?

Two kinds of source feed this page: Mississippi's official documents for what the state charges, and company price pages for what services charge.

Does the law require one?

No. Owners can file with the state directly. A service saves time and can act as agent, but nothing makes you hire one.

Will a service file the registration for me?

Each company here handles the filing itself. What differs between them is only the service fee, since the state charges the same.

Who tops the stack in Mississippi?

Open Mississippi Registered Agent.co first, then compare Mainstay Filing and Registered Agent MS.org.

What the page rests on

  1. Unpacking Mississippi Secretary of State, Business led us to sos.ms.gov, confirmed August 2026, which you can open yourself
  2. Unpacking Mississippi Secretary of State, Business led us to sos.ms.gov, confirmed August 2026, which you can open yourself
  3. Unpacking Mississippi yearly filing: Annual report led us to sos.ms.gov, confirmed October 2026, which you can open yourself
  4. Unpacking Miss led us to sos.ms.gov, confirmed August 2026, which you can open yourself
  5. Unpacking Mississippi registered agent statute led us to sos.ms.gov, confirmed October 2026, which you can open yourself
  6. Unpacking Mississippi Secretary of State, Business led us to sos.ms.gov, confirmed October 2026, which you can open yourself
  7. Unpacking Business filing fee schedule led us to sos.ms.gov, confirmed October 2026, which you can open yourself
  8. Unpacking Start Your Business in Mississippi led us to sos.ms.gov, confirmed October 2026, which you can open yourself
  9. Mississippi Registered Agent.co pricing page, read November 13, 2026
  10. Mainstay Filing Mississippi service page, read November 13, 2026
  11. Registered Agent MS.org pricing page, read November 13, 2026