Mississippi Certificate of Formation: File for $50 (2026)
The Certificate of Formation — form F0100 — is the $50 filing that creates your Mississippi LLC. Here's every line of the form, how to file through the Secretary of State's online portal, and why there's no expedite option to weigh — everyone gets the same timeline.
Prepare the LLC name and registered-agent designation required by sections 79-29-201 and 79-35-5. For a listed commercial registered agent, provide its registered name. Otherwise provide the noncommercial agent’s name, Mississippi physical/address details and email address, with permission to act. Enter a specific dissolution date only if the LLC is intended to end on a specified date; a perpetual-duration statement is not a universal required field. Complete the actual current portal’s additional filer/contact/signature disclosures. The SOS schedule lists $50 for a domestic Certificate of Formation; payment/service charges, if any, are separate.
- Filing fee
- $50
- Form number
- F0100
- Portal
- business.sos.ms.gov
- Processing
- ~5–10 business days
- Expedite option
- None
- Agency
- Secretary of State
What the Certificate of Formation Does
The Certificate of Formation is your LLC's birth certificate. When the Secretary of State accepts form F0100, your LLC exists: liability protection attaches, the name is claimed, and you can bank and contract as the company. Mississippi's form is lean and entirely online — there's no paper alternative and no faster tier to pay for, so your prep work before submitting is what actually saves time.
Online Filing Walkthrough
Create an account at business.sos.ms.gov
One login handles formation now and your annual report every year after — keep the email durable.
Start a new domestic LLC filing
The portal walks form F0100 field by field — name, registered agent, and organizer information.
Enter your details and pay $50
Prepare the LLC name and registered-agent designation required by sections 79-29-201 and 79-35-5. For a listed commercial registered agent, provide its registered name. Otherwise provide the noncommercial agent’s name, Mississippi physical/address details and email address, with permission to act. Enter a specific dissolution date only if the LLC is intended to end on a specified date; a perpetual-duration statement is not a universal required field. Complete the actual current portal’s additional filer/contact/signature disclosures. The SOS schedule lists $50 for a domestic Certificate of Formation; payment/service charges, if any, are separate.
Watch for same-day confirmation
Save the accepted Certificate and actual effective date. Current queue and completeness control review; an email receipt is not necessarily filing approval.
There's only one path here: unlike states where you weigh online speed against a cheaper mail option, Mississippi's Certificate of Formation is online-only. That simplifies your decision — there's nothing to compare, so focus your prep time on getting the name and registered agent information exactly right before you submit.
Every Line of the Certificate
LLC name
With a valid designator (LLC or L.L.C.), distinguishable on the Secretary of State's records — verified in Step 1.
Commercial or noncommercial registered-agent information
Prepare the LLC name and registered-agent designation required by sections 79-29-201 and 79-35-5. For a listed commercial registered agent, provide its registered name. Otherwise provide the noncommercial agent’s name, Mississippi physical/address details and email address, with permission to act. Enter a specific dissolution date only if the LLC is intended to end on a specified date; a perpetual-duration statement is not a universal required field. Complete the actual current portal’s additional filer/contact/signature disclosures. The SOS schedule lists $50 for a domestic Certificate of Formation; payment/service charges, if any, are separate.
Organizer information
The person filing the Certificate — doesn't have to be a member or manager.
Specific dissolution date, only if chosen
State the latest dissolution date only when choosing a specific end date. Otherwise do not treat a perpetual-duration entry as a mandatory statutory field.
Optional provisions
Any additional provisions permitted under the Mississippi Revised LLC Act, if you want them on the public record (most founders don't).
Payment
$50 by card, submitted entirely online — no mail-in option for this filing.
No Expedite Option — What That Means for You
Prepare complete current fields and confirm accepted filing. Timing varies with the queue and corrections; a checklist cannot guarantee approval or a specific completion day.
Mississippi Filing Readiness Checklist
Educational preparation checklist; verify all current fields and acceptance.
After Approval: Your Immediate Next Moves
- Save your confirmed Certificate — banks require it alongside your EIN letter.
- Create your operating agreement — the document that overrides Mississippi's default rules.
- Get your free EIN at IRS.gov, then register with the Mississippi Department of Revenue via TAP.
- Calendar April 15 — Mississippi's one recurring state deadline, and it's free, so it needs its own reminder.
Check the exact commercial listing or noncommercial agent details and permission before submitting. Keep the accepted Certificate, actual effective date and payment record; preparation does not guarantee approval.
- ✓Optional formation assistance; confirm filing scope, service pricing and submission responsibilities.
- ✓Optional formation assistance; confirm filing scope, service pricing and submission responsibilities.
- ✓Confirm registered-agent eligibility, coverage, included periods and renewal charges.
- ✓Review address-use rules and privacy policies; a service does not remove all information from public filings.
Disclosure: LLC School may earn a commission via this link, at no cost to you. See our advertising disclosure.
Certificate Fields and Agent Contact Details
Prepare the LLC name and registered-agent designation required by sections 79-29-201 and 79-35-5. For a listed commercial registered agent, provide its registered name. Otherwise provide the noncommercial agent’s name, Mississippi physical/address details and email address, with permission to act. Enter a specific dissolution date only if the LLC is intended to end on a specified date; a perpetual-duration statement is not a universal required field. Complete the actual current portal’s additional filer/contact/signature disclosures. The SOS schedule lists $50 for a domestic Certificate of Formation; payment/service charges, if any, are separate.
Mississippi registered-agent email amendment.
Mississippi LLC — FAQ

Ahmad Adil is the founder and CEO of LLC School. For filing and ongoing compliance, confirm the requirements with the responsible state agency. This is educational information, not legal or tax advice.
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