Mississippi LLC Operating Agreement: Written, Oral, or Implied? + Free Template

| Updated October 6, 2026

Mississippi treats an operating agreement broadly: it can be written, oral, or implied, and the statute also calls it a “limited liability company agreement.” Voting is not one-member-one-vote by default; power follows each member’s current share of profits, which makes a written agreement especially useful when ownership and control should work differently.

Free Mississippi Templates

Choose the version that matches your Mississippi LLC structure.

Page 1 of the Mississippi Manager-Managed Operating Agreement
Single-Member Operating Agreement

For an LLC with one owner.

Multi-Member Operating Agreement

For an LLC with two or more owners who manage the business together.

Manager-Managed Operating Agreement

For an LLC where one or more managers handle the business’s management.

Mississippi Manager-Managed Operating Agreement template

Is an Operating Agreement Required for a Mississippi LLC?

No written operating agreement is required to form the LLC. Mississippi forms an LLC through a Certificate of Formation filed with the Secretary of State, while state law separately recognizes operating agreements that may be written, oral, or implied. The Secretary of State currently lists a $50 filing fee for a Mississippi LLC Certificate of Formation.

The important Mississippi wrinkle is consent: once there is an operating agreement, the initial agreement must be agreed to by all members. If it does not provide its own amendment method, later amendments also generally require every member, except an amendment resulting from a merger.

Formation documents can be submitted through the Mississippi Secretary of State online filing system.

Required by law
No written agreement
Filed with the state
No
Notarization
Not required

Mississippi does not make notarization part of its statutory definition or execution requirements. In fact, the statute permits an operating agreement to be oral or implied and says the LLC itself does not have to execute it.

For practical questions about state business filings, the Mississippi Secretary of State Business FAQs explains the state’s filing process.

Mississippi Operating Agreement Definition

Miss. Code § 79-29-105(t) Revised Mississippi Limited Liability Company Act
Read the statute ↗
“Operating agreement” or “limited liability company agreement” means any agreement … “written, oral or implied.”

Mississippi’s definition is flexible, but that does not mean every important LLC term can safely remain informal. § 79-29-123(7) specifically identifies matters that must appear in the Certificate of Formation or a written operating agreement before they are enforceable.

Written, oral, or implied

All three forms can qualify as a Mississippi operating agreement.

Signatures are not everything

A member, manager, or assignee may be bound even without executing the agreement, and the LLC itself does not have to sign it. § 79-29-105(t)

Some terms must be written

Under § 79-29-123(7), Mississippi reserves certain provisions, including specified governance, withdrawal, voting, fiduciary-duty, and liability arrangements, for the Certificate of Formation or a written operating agreement.

Mississippi LLC Default Rules

These are the Mississippi defaults most worth addressing in writing. They are especially important because control can follow profit percentages, not simply the number of members.

Voting power

Each member’s vote is based on that member’s current percentage of LLC profits. Unless another rule requires more, members holding more than 50% of those profit interests control the decision.

§ 79-29-309(1)-(2)
Management control

The LLC is member-managed by default, and management authority follows members’ profit interests. Members holding more than 50% of those interests control unless the operating agreement places management with managers.

§ 79-29-305
Inherited membership

A person who inherits an LLC interest from a deceased member becomes a member when that interest is distributed from the deceased member’s estate.

§ 79-29-301(2)(d)
Leaving or expelling a member

Without a different written rule, a member cannot withdraw before dissolution without written consent from all members. The LLC also has no default power to expel a member.

§ 79-29-303
Amending the agreement

If the Certificate of Formation or operating agreement gives no amendment method, every member must agree. A merger-related amendment is the statutory exception and can be approved by a majority.

§ 79-29-123(2)(b)
No member meeting for 15 months

If no member meeting has occurred during the previous 15 months, members holding at least 20% of the voting power may call a regular meeting with 30 days’ written notice, at the LLC’s expense.

§ 79-29-309(6)(d)

The combination of the first two rules is particularly important in Mississippi: an owner with a larger profit share can also have greater voting and management power by default. A 50/50 ownership structure and a 70/30 structure therefore do not produce the same statutory control arrangement.

Research and References

  • Aaron Kra Boost Suite

    Aaron Kra, JD, Founder and Editor-in-Chief of Boost Suite, is a recognized authority on LLC formation, registered agents, and small-business compliance.
    A graduate of the University of Texas School of Law (ABA-accredited), he founded Boost Suite to turn complex state rules into plain-English, step-by-step guidance. For 9+ years, he has helped entrepreneurs with entity selection, registered-agent requirements, and multi-state compliance, and he leads the site’s legal/tax review.

    Previously, Aaron practiced business law in Austin (LLC/PLLC formations, conversions/domestications, UCC-1 filings, multi-state registrations) and completed a year-long secondment with a national registered-agent provider, working with filing clerks in 25+ states. At Boost Suite, he checks each guide with official US sources and updates everything when necessary. Read more about Aaron Kra and Boost Suite.

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