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.
File a Certificate of Formation (form F0100) with the Mississippi Secretary of State to create your LLC. The fee is $50, filed entirely online at business.sos.ms.gov — Mississippi does not accept paper filings for this step and has no expedited processing option. Many filings are confirmed by same-day email, with standard processing running about 5–10 business days. The Certificate requires your LLC name, your registered agent and Mississippi street address, and basic organizer information.
- 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
Name, registered agent and Mississippi address, organizer name; pay by card at submission.
Watch for same-day confirmation
Many filings are confirmed by email the same day; standard processing overall runs about 5–10 business days. Save the confirmed Certificate the moment it issues.
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.
Registered agent & address
Name of your registered agent and their Mississippi street address.
Organizer information
The person filing the Certificate — doesn't have to be a member or manager.
Duration
Usually "perpetual" unless you want the LLC to end on a set date.
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
Some states let you pay extra for same-day or next-day formation. Mississippi doesn't offer that tier — everyone gets the same standard timeline, typically 5–10 business days, though many filers see confirmation by email the same day they submit. Use the checklist below to make sure your submission goes through clean the first time, since there's no faster fix if something bounces back.
Mississippi Filing Readiness Checklist
Confirm each item before you submit — there's no expedite fix for a bounced filing
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.
Ahmad Adil's Take: Mississippi's filing is refreshingly simple precisely because there's no expedite decision to agonize over — one price, one timeline, online only. The only real lever you control is submission quality: a clean name search and a correctly entered registered agent address are what keep you inside the standard 5\u201310 business day window instead of triggering a rejection and a resubmission. Since there's no paid fast lane to fall back on if something goes wrong, I tell every Mississippi client to slow down for five extra minutes before hitting submit \u2014 it's the only speed control you actually have.
- ✓Forms your Mississippi LLC for $39 + the $50 state fee
- ✓Files online with the Secretary of State
- ✓Free Mississippi registered agent the first year
- ✓No upsells · No data selling · Privacy by Default
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Mississippi LLC — FAQ
Ahmad Adil is the founder and CEO of LLC School. The figures here — the $50 Certificate of Formation, the free annual report due April 15, and Mississippi’s flat 4.0% income tax on earnings above $10,000 — reflect current Mississippi Secretary of State and Department of Revenue guidance. This is educational content, not legal or tax advice.
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