Michigan LLC Operating Agreement: Is It Required and What It Must Cover

If you are forming a limited liability company in Michigan, one of the first questions is whether you need a michigan llc operating agreement before you file. The short answer is no. Michigan does not require an operating agreement to form an LLC, and the state does not ask for one. But not required is not the same as not needed. Without a written agreement, your LLC runs on the default rules in the Michigan Limited Liability Company Act, and those rules may not match how you and your co-owners actually want to run the business.

This guide explains what the law says, when a michigan operating agreement becomes practically necessary, and what it should cover. This is informational content, not legal or tax advice. Talk to a Michigan business attorney and a CPA before you sign anything that affects ownership, taxes, or personal liability.

Short answer: Michigan does not require one to form an LLC

The Michigan Limited Liability Company Act (Act 23 of 1993) requires you to file Articles of Organization (Form CSCL/CD-700) with the Corporations Division of the Michigan Department of Licensing and Regulatory Affairs (LARA). You do not attach an operating agreement to that filing. LARA does not collect or review one, so the state filing tells you nothing about what your owners have agreed to.

That means you can form an LLC on the filing alone. Whether you should is a separate question. For most LLCs with more than one owner, the answer is yes, and for a single-owner LLC a short written agreement is still worth having.

What the statute means by an operating agreement

The Act defines an operating agreement as a written agreement of the sole member or of all members about the company's affairs and the conduct of its business (MCL 450.4102(2)(r)). Two points follow from that definition. The agreement is a private contract among the owners, not a state form. And it must be written to count as the operating agreement under the Act.

The Act's definition also reaches provisions that appear in the Articles of Organization itself. Terms you place in the filing become part of the governing framework, but the Articles are public. Anyone can look up your filed Articles on the MiBusiness Registry business search. Put sensitive ownership and buy-out terms in a separate agreement, not in the public filing.

What happens when your agreement is silent

If your operating agreement does not address a point, the Act's default rules fill the gap. Those defaults were written for a generic LLC, not for your business. For example, when the agreement does not allocate voting, the statute gives each member one vote regardless of ownership percentage (MCL 450.4502(1)(b)), and most matters need a majority in interest of the members entitled to vote. That default may not produce the result you expect, because a 70 percent owner and a 30 percent owner would each hold one vote.

Consider two owners who each hold 50 percent and have no written agreement. Neither owner controls a majority, so a disagreement on a major decision has no built-in tiebreaker. A written agreement with a deadlock process, such as mediation or a buy-out trigger, solves that before it becomes a lawsuit.

Single-member versus multi-member agreements

A single-member agreement is shorter, but it still earns its keep. It should confirm that the LLC is separate from the owner, set out how money moves in and out of the company (capital contributions and distributions), name who manages the company, and state what happens on the owner's death or incapacity. Single-owner LLCs often skip this step and then struggle to show a bank or a court that the entity is real. Keeping company and personal money separate, and documenting it, helps protect the liability shield the LLC provides.

A multi-member agreement is where most of the real work happens. Ownership percentages, decision-making rules, transfer limits, and buy-out terms all need to be spelled out, because the default rules will rarely match what the owners intend.

Tax classification affects how the agreement is drafted. Michigan treats a standard LLC as a pass-through entity, so members report the income on the Michigan individual income tax at the flat 4.25% rate for the 2026 tax year. An LLC that elects federal C corporation treatment is subject to the 6% Michigan Corporate Income Tax instead. Michigan imposes no franchise tax. Ask your CPA how your federal classification should be reflected in the agreement's allocation and distribution terms.

What your operating agreement should cover

A complete agreement addresses the following areas. Use them as a checklist, then work through the details with your attorney.

1. Ownership percentages. State each member's percentage interest and tie it to a stated basis, such as capital contributions or agreed sweat equity. Say what happens if a member contributes more later.
2. Management structure. Decide whether the LLC is member-managed, where every owner has a say in daily decisions, or manager-managed, where one or more named managers run the business. Define which decisions need a vote and what threshold applies.
3. Capital contributions. List what each member contributes, whether cash, property, or services, and the agreed value. State whether additional contributions are mandatory and what happens if a member does not pay in.
4. Distributions. Specify when and how cash leaves the company, and whether distributions are mandatory or discretionary. If members pay tax on their share of profit, include a tax distribution provision.
5. Allocation of profits and losses. Set how income and losses are split among members, and whether that split matches ownership percentages.
6. Transfer restrictions. Limit whether a member can sell, give away, or pledge an interest, and to whom. A right of first refusal lets the remaining owners buy an interest before an outsider does.
7. Buy-out terms. Define the triggers, such as death, disability, divorce, bankruptcy, or voluntary departure. Specify the valuation method and payment terms. This is the clause most often missing from owner agreements, and the one most often needed.
8. Dissolution. List the events that end the company, the vote required to dissolve it, and the order in which assets and debts are paid during wind-up.
9. Banking and signing authority. Name who can open accounts, sign contracts, and approve payments, and set any spending limits.
10. Dispute resolution. Choose a process, such as mediation before litigation, and decide which courts will hear a dispute.

When banks, lenders and others will ask for one

Michigan does not make the agreement a filing requirement, but outside parties often do. Banks opening a business account, lenders making a loan, and insurers underwriting a policy may ask for a copy to confirm who has authority to act for the company. Tax preparers may also ask for it when they set up the company's returns. Ask each party what it needs before you sign, and do not hand over a draft as though it were final.

Michigan filing costs and recurring obligations

An operating agreement carries no state filing fee. Drafting costs are set by the attorney or preparer, so get a written quote. The state costs that do apply to an LLC are below.

Item	Amount	Notes
Articles of Organization (Form CSCL/CD-700)	$50 filing fee	Must name a resident agent and registered office. A P.O. box alone is not sufficient for the registered office.
Expedited review of a formation document	$50 for 24 hour review; $100 same day; $500 two hour; $1,000 one hour	Paid in addition to the filing fee. The two hour option must be received by 3 p.m. and the one hour option by 4 p.m.
Annual Statement	$25	Due February 15 each year. An LLC formed or qualified after September 30 does not owe a statement on the February 15 immediately following.
Certificate of Assumed Name (Form CSCL/CD-541)	$25 for an LLC	Filed with LARA if your LLC will operate under a name other than its legal name. The certificate expires on December 31 of the fifth calendar year after the year it was filed.

Your LLC name must contain Limited Liability Company, L.L.C., or L.C., with or without periods. Check availability on the MiBusiness Registry before you file. The resident agent is the term Michigan uses for the registered agent, and the agent must be a Michigan resident or an entity authorized to do business in Michigan. Changes to the resident agent are filed on Form CSCL/CD-520.

The Annual Statement is the only recurring LARA charge for a standard LLC. LARA's filing is a filing, not a license. Michigan has no general statewide business license, so the registration does not authorize you to operate. Licensing depends on your trade or activity, and local zoning, certificate of occupancy, and health approvals may also apply. Michigan has 83 counties, about 275 to 280 cities, about 255 to 258 villages, and 1,240 townships, and local rules vary. City income tax applies in only 24 Michigan cities, so confirm with your city clerk whether it reaches your LLC.

Common mistakes

• Waiting until a dispute to write the agreement. Owners who are getting along rarely negotiate buy-out terms, and that is when the terms matter most.
• Copying a template from another state without checking it against Michigan law and the Act's default rules.
• Splitting ownership 50/50 without a tiebreaker or deadlock process.
• Leaving out buy-out and transfer terms, then discovering that a departing owner's spouse or creditor now holds an interest.
• Failing to update the agreement after a new member joins, a percentage changes, or a manager is replaced.
• Assuming the Articles of Organization cover everything. They do not replace a full agreement.

Practical sequence for a Michigan LLC

1. Search the name on the MiBusiness Registry business search.
2. File the Articles of Organization through the MiBusiness Registry Portal, with a resident agent and registered office.
3. Draft and sign the operating agreement before you open a bank account, sign a lease, or take on debt in the company's name.
4. Calendar February 15 for the Annual Statement. An LLC formed after September 30 skips the February 15 immediately following its formation.
5. If you sell taxable goods, register separately with the Michigan Department of Treasury for a sales tax license. The registration is free and can arrive in as little as 7 business days. The state sales tax rate is 6%.

Official Michigan resources

• LARA Corporations Division: https://www.michigan.gov/lara/bureau-list/cscl/corps
• MiBusiness Registry business search: https://mibusinessregistry.lara.state.mi.us/search/business
• Michigan Department of Treasury: https://www.michigan.gov/taxes
• Michigan Small Business Development Center: https://michigansbdc.org/

Get professional help for your agreement

A simple single-owner agreement may be manageable with a clear template and a careful review. A multi-owner LLC with outside investors, real estate, professional licensing, or a plan to bring in new owners should have a Michigan business attorney draft or review the agreement. A CPA should review the tax sections, including classification, allocations, and distributions. The cost of a careful agreement is small compared with the cost of resolving an unclear one.

This article is informational content about Michigan business formation. It is not legal or tax advice, and it does not create an attorney-client relationship. Statutes, fees, and agency procedures change. Confirm current requirements with LARA, the Michigan Department of Treasury, and a qualified attorney or CPA before you act.