How to Start an LLC in Mississippi (2026): 7 Steps and the 3 Best LLC Services
Lesson answer for Mississippi in 2026: if you want help with starting an LLC, use Registered Agent MS.org ($199), Mainstay Filing ($199) and Mississippi Registered Agent.co ($199), in that order. Below the picks you will find 7 steps in order, starting with the name and ending with the yearly upkeep (filing fee $50).
Published prices, read November 12, 2026. Add Mississippi's $50 fee to each row.
Forming the LLC, in order
Step1
Step 1: Name the company
Pick a name, then check it against the records at the Mississippi Secretary of State so no other company already holds it.
TipPick a spare name too, in case the first is taken.
Step2
Step 2: Name a registered agent
Every LLC must name a registered agent with an in-state street address. Any individual, corporation or LLC with a physical address in Mississippi. Agents that serve for hire register with the Secretary of State as commercial agents.
The address has to be a physical Mississippi street address that is the agent's business office. P.O. boxes are not accepted.
TipOur picks all provide the registered agent.
Official source: Official: sos.ms.gov, October 2026
Step3
Step 3: Decide who files: you or a service
Doing it yourself costs $50. Using one of our picks adds $199, and the agent comes with it.
Step4
Step 4: Complete and file the Certificate of Formation
The Mississippi Secretary of State receives the Certificate of Formation (Form F0100) along with $50, under Miss. Code Ann. § 79-29-201.
Official source: Official: sos.ms.gov, August 2026
Step5
Step 5: Apply for an EIN
After the Mississippi approval, the IRS issues an EIN, the number banks and payroll use for the LLC. Mainstay Filing's yearly price includes the EIN application.
Step6
Step 6: Agree the house rules in writing
Put ownership and decision rules into an operating agreement and keep it with the company papers.
Step7
Step 7: Keep up with Mississippi's yearly filing
The LLC stays active by filing the annual report every year; the deadline is April 15.
Official source: Official: sos.ms.gov, October 2026
Step-by-step costs
What
Paid to
Amount
Filing the LLC
State
$50
Annual report
State
No fee
Optional service
The service
$199 year one
Three-year state total
State
$50
The state rows are official figures; the service row uses each company's published price. The three-year total leaves service fees out.
How the grade worked out
The grade turned on three-year cost (30%), where Registered Agent MS.org came out ahead of Mainstay Filing.
Add up years one to three and Registered Agent MS.org comes to $397; Mainstay Filing is $200 more.
Common questions
What does it cost to form an LLC in Mississippi?
$50 to the state. Add $199 if a service files it.
Which form creates the LLC?
It is called the Certificate of Formation (Form F0100), and it goes to the Mississippi Secretary of State.
Is a registered agent required?
Every LLC must name a registered agent with an in-state street address.
What does Mississippi require each year?
The annual report: no fee, every year, due April 15.
Can I form the LLC without a service?
Yes, by filing yourself for $50 and naming a registered agent.
Which LLC service should a first-time founder use?
In order: Registered Agent MS.org, Mainstay Filing and Mississippi Registered Agent.co. Registered Agent MS.org comes first because $199 plus the state fee with the first agent year included, then $99 a year.