- August 16, 2026
- Posted by: OTIN Editorial Team
- Category: LLC
To start a Mississippi LLC, choose a compliant business name, appoint a qualified registered agent, prepare the required formation information, create an account in the Mississippi Secretary of State’s online filing system, and submit Form F0100, the MS LLC Certificate of Formation, with the $50 filing fee. The LLC is formed when the Secretary of State files the certificate unless you specify a permitted later effective date or time.
Formation is only the beginning. After filing, organize the company’s internal records, address any applicable tax and licensing registrations, and remember the Mississippi annual report. The steps below explain the process in beginner-friendly terms.
Understand What You Need Before Filing
A Mississippi LLC needs an acceptable legal name, a Mississippi registered office, and a registered agent. Gathering these details before opening the filing system can reduce avoidable interruptions and mistakes.
A compliant LLC name
The legal name must contain “limited liability company,” “L.L.C.” or “LLC.” It generally must also be distinguishable from names already in the Secretary of State’s records. Mississippi law prohibits specified terms in LLC names, including bank, insurance, trust, corporation and partnership terminology.
Think about the legal name separately from branding. A short, memorable brand idea may still need an LLC designator, and a name that looks different in advertising may not necessarily be distinguishable in state records. Check the proposed legal name before preparing other documents that display it.
If you are not ready to form the company, reserving the name is optional. An available LLC name may be reserved for 180 days by filing Form F0110, the MS LLC Application for Name Reservation, with a $25 fee. A reservation may be useful when you have settled on a name but still need time to confirm the registered agent, ownership arrangements, financing, or launch plans.
A registered agent and registered office
Every Mississippi LLC must continuously maintain a registered office in Mississippi and a registered agent whose business office is identical to that registered office. The agent may be an individual who is a Mississippi resident, an eligible domestic entity, or a foreign entity authorized in Mississippi.
Choose this person or entity before filing and confirm the exact street and mailing addresses to use. Treat the role as an ongoing compliance responsibility rather than a one-time entry on the formation form. If the address or agent later changes, make sure the company’s state record is handled appropriately rather than simply updating an internal contact list.
Gather the Documents and Information
The central formation document is Form F0100, the MS LLC Certificate of Formation. Before starting the online submission, prepare the following information:
- The LLC’s proposed legal name, including an approved LLC designator.
- The street and mailing addresses of the registered office.
- The registered agent’s name and street and mailing addresses.
- A specific dissolution date, but only if the LLC is intended to have one.
- Your preferred effective date or time if the company should not become effective immediately upon filing.
- A payment method for the nonrefundable filing payment.
The Certificate of Formation must state the LLC’s name and the registered office and registered agent’s street and mailing addresses. If the LLC will have a specific dissolution date, that date must also appear in the certificate.
It is also sensible to prepare internal business information that may not be part of the certificate. Examples include who will make decisions, how ownership interests will be tracked, how funds will be contributed, and who can sign contracts or access financial accounts. Putting these understandings into an operating agreement can help the participants use consistent rules, even though the formation filing and the company’s internal governance records serve different purposes.
File the Mississippi Certificate of Formation
- Review the proposed name. Confirm that it contains an authorized LLC designator, does not use prohibited terminology, and is suitable for submission under Mississippi’s distinguishability rules.
- Confirm the registered agent. Make sure the selected agent is eligible, has agreed to serve, and has a business office matching the Mississippi registered office.
- Decide whether to reserve the name. Skip this optional step if you are ready to submit the formation filing. Consider it if you want to hold an available name while completing other preparations.
- Create an online filing account. Mississippi Secretary of State business documents may only be filed through the agency’s online business filing system, and users must create a filing account.
- Complete Form F0100. Enter the legal name and registered-agent and registered-office information carefully. Include a dissolution date only if the LLC is designed to end on a specific date.
- Select the effective timing. Ordinarily, the LLC is formed when the Secretary of State files the Certificate of Formation. The certificate may specify a later effective date or time, but a delayed effective date cannot be more than 90 days after filing.
- Check the entire submission. Compare spellings and addresses with the information you collected. Pay particular attention to the LLC designator, the registered office, the registered agent’s information, and any delayed effective date.
- Submit the filing and payment. Form F0100 has a $50 filing fee. Filing payments made through the Secretary of State’s online business filing system are nonrefundable, so review the filing before paying.
- Save the accepted records. Retain the filed certificate, confirmation, payment record, and account access information with the LLC’s permanent business records.
Do not base a launch, contract closing, or other important commitment on an assumed approval turnaround. Instead, monitor the filing account and use the actual filed record and effective date when coordinating the company’s next actions.
Complete the Post-Filing Tasks
Once the certificate has been filed, create an orderly company record book or secure digital folder. Keep the formation document, operating agreement, ownership records, major written approvals, contracts, and compliance correspondence together. Separating company records from personal paperwork makes future updates and reviews easier.
Consider whether the LLC’s circumstances call for a federal employer identification number. For help planning that task, see how to apply for an EIN in Mississippi.
Tax registration depends on what the business will do. The Mississippi Secretary of State advises businesses making retail sales or hiring employees to contact the Mississippi Department of Revenue about relevant registrations. A retail business can review introductory information about a Mississippi State Sales Tax Number and the related Mississippi State Sales Use Tax Number Identification Application.
Licensing and permit procedures can also vary by city or town. Check with the local government that applies to the business location and activity. For examples of issues to investigate, review business license requirements in Mississippi. Do not assume the formation filing itself authorizes every regulated activity or satisfies every local procedure.
Mississippi LLCs must also file an online annual report from January 1 through April 15 each year. The annual report is Form F0108, and it has no filing fee. Add this recurring filing window to the company calendar and assign responsibility for reviewing the company’s information and submitting the report.
Practical Examples for New LLC Owners
A solo service business ready to open
Suppose a consultant has selected an acceptable LLC name, confirmed a qualified registered agent, and is ready to begin. The owner can generally proceed directly to the online Certificate of Formation instead of paying to reserve the name first. After the filing is accepted, the owner can organize the company records, evaluate whether an EIN is appropriate, check local requirements, and calendar the annual report.
A future retail shop
Imagine two founders who have chosen a name but are still negotiating a location. They may decide to reserve the available name for 180 days by submitting Form F0110 and the $25 fee. When they are ready to form the LLC, they still must submit Form F0100 and its separate $50 filing fee. Because the planned activity involves retail sales, they should contact the Mississippi Department of Revenue about relevant registration and ask the applicable city or town about local licensing or permits.
A company with a planned later start
A founder may submit the certificate before the desired operational start and specify a later effective date or time. That delayed effective date cannot be later than 90 days after filing. The founder should use the effective date shown by the company’s filed record when organizing launch documents rather than treating the submission date as automatically controlling.
Across these examples, the best approach is to distinguish formation from ongoing operation. The Certificate of Formation creates the Mississippi LLC at the applicable effective time, while tax registrations, local approvals, internal governance, recordkeeping, and annual reporting address different parts of operating and maintaining the business.
Frequently Asked Questions
How much does it cost to form a Mississippi LLC?
Form F0100, the MS LLC Certificate of Formation, has a $50 filing fee. Filing payments made through the Mississippi Secretary of State’s online business filing system are nonrefundable.
Can I file a Mississippi LLC by mail?
Mississippi Secretary of State business documents may only be filed through its online business filing system. You must create a filing account to submit the Certificate of Formation.
Does a Mississippi LLC need a registered agent?
Yes. Each Mississippi LLC must continuously maintain a registered office in Mississippi and a registered agent whose business office is identical to that registered office. The agent may be a Mississippi resident individual, an eligible domestic entity, or a foreign entity authorized in Mississippi.
Do I have to reserve my LLC name before filing?
No. Name reservation is optional. If you are not ready to form the company, an available LLC name may be reserved for 180 days by filing Form F0110 and paying its $25 filing fee.
When is a Mississippi LLC officially formed?
The LLC is formed when the Secretary of State files its Certificate of Formation unless the certificate specifies a later effective date or time. A delayed effective date cannot be more than 90 days after filing.