Michigan LLC Operating Agreement: What Banks and Courts Actually Look For

No, Michigan does not require you to have an operating agreement, and you never file one with the state. But the first time you walk into a credit union in Grand Rapids to open a business checking account, the banker is going to ask for it. That gap — the state doesn’t care, but everyone who matters to your business does — is why a Michigan LLC operating agreement is the single most overlooked document in a new company’s file drawer.

This post covers what LARA actually requires, what banks are looking for when they ask, what Michigan courts do with the document when things go wrong, and what needs to be inside it for it to be worth anything.

What the state requires versus what the agreement does

When you form an LLC in Michigan, you file Articles of Organization with the Corporations Division of the Department of Licensing and Regulatory Affairs (LARA) through the MiBusiness Registry Portal. The fee is $50, with an optional $50 add-on for 24-hour expedited review. After that, your only recurring obligation to the state is a $25 annual statement due every February 15.

That’s it. Nothing in the Michigan Limited Liability Company Act (MCL 450.4101 et seq.) conditions your LLC’s existence on having an operating agreement, and there is no box to check, no attachment to upload, and no filing fee associated with one.

Here’s the catch. The Articles of Organization are a public, three-page form. They say your company exists, name your resident agent, and give your registered office address. They say almost nothing about who owns what, who can sign what, and what happens when someone leaves. The Act fills those gaps with default rules, and the defaults are frequently not what the owners assumed.

Issue	Michigan default with no written agreement	What your agreement can do instead
Profit splits and distributions	The Act’s default ties distributions to the value of each member’s contributions — not to a verbal “we’re 50/50”	Set any split you want, including splits that differ from capital contributions
Management	Member-managed unless the Articles say otherwise (MCL 450.4401)	Name specific managers, set dollar thresholds requiring co-signature
Adding a member	Generally requires consent of all members	Majority vote, a formula, or a founder veto
A member wants out	No built-in buyout price or process	Buy-sell terms, valuation method, payment schedule
Death, divorce, or bankruptcy of a member	The interest passes as property; the recipient may get economic rights without management rights	Purchase options and transfer restrictions that keep control inside the company
50/50 deadlock	Petitioning a circuit court may be the only exit	Tiebreaker member, mediation clause, shotgun buyout
Capital calls	No member is obligated to put in more money	Define when calls happen and what dilution follows a refusal

One Michigan-specific detail worth knowing: the Act defines an operating agreement as a written agreement among the members (see the definitions at MCL 450.4102). A handshake deal at a kitchen table in Warren is not an operating agreement in the statutory sense, no matter how sincere it was. If it isn’t written, the defaults govern.

Why your bank asks for it

Banks are not being difficult. They have two concrete problems to solve before they hand your LLC an account and a debit card.

Problem one: who is authorized to move money? The Articles of Organization don’t list members. They list a resident agent, who may be a service company. The bank needs a document that names the human beings with authority to open accounts, sign checks, take on debt, and add or remove signers. An operating agreement that clearly identifies members, managers, and signing authority solves this in one page.

Problem two: who actually owns this company? Under federal customer due diligence rules, financial institutions must identify and verify the beneficial owners behind legal entity customers. The banker will hand you a beneficial ownership certification form. An operating agreement listing membership percentages lets them cross-check what you wrote.

What a Michigan bank typically wants in the folder when you open the account:

Your stamped Articles of Organization from LARA — the copy returned through the MiBusiness Registry Portal is normally fine
Your EIN confirmation letter from the IRS (the CP 575, or a 147C replacement if you’ve lost it) — if you haven’t done this yet, our EIN filing service handles it
The operating agreement, signed and dated by all members
Government-issued ID for every signer and every beneficial owner
Occasionally, a banking resolution — a short document saying the members authorize opening an account at that specific institution, which a well-drafted agreement can make unnecessary

Where this goes sideways: a member-managed two-person LLC shows up with a downloaded template that was never filled in, still says “[MEMBER NAME]” in three places, and has no signatures. The banker declines it. Now you’re driving home to fix a document you thought was done.

Lenders raise the bar further. If you apply for an SBA-backed loan or commercial real estate financing, underwriting will read the agreement, not skim it. They look for transfer restrictions, change-of-control provisions, and whether a single member can encumber company assets without the others’ consent.

What courts look for

The liability shield is the reason most people form an LLC in the first place. The Michigan Act provides that members aren’t personally liable for the company’s debts simply because they’re members. But that protection isn’t absolute — a plaintiff can ask a court to pierce the veil and reach your personal assets.

Michigan courts have long applied a three-part framework: the entity must be a mere instrumentality of another person or entity, it must have been used to commit a fraud or wrong, and the plaintiff must have suffered an unjust loss as a result. Judges evaluating the first element are asking whether the LLC was ever treated as a real, separate thing.

An operating agreement is direct evidence on that question. It shows the members defined the company’s governance, capital structure, and decision-making in advance and then acted accordingly. Its absence doesn’t automatically doom you, but combined with commingled funds, no separate bank account, and no records, it contributes to a picture of a company that existed only on paper.

The second place courts encounter these agreements is in disputes between members. Michigan provides a statutory remedy for members subjected to willfully unfair and oppressive conduct (MCL 450.4515), and circuit courts hear plenty of these. In almost every one, the first question is what the agreement says. If there’s a valuation formula, the court applies it. If there isn’t, you’re paying two experts to fight about what the business is worth — which costs more than every formation expense you’ve ever incurred, combined.

Third: probate and divorce. A membership interest is property. When a member dies or divorces without transfer restrictions in place, an ex-spouse or an heir can end up holding an economic interest in your company. Transfer restrictions and purchase options in an operating agreement are the mechanism that prevents this, and they only work if they were signed before the event.

Single-member LLCs need this more, not less

The most common objection: “It’s just me. Who would I be agreeing with?”

You’d be agreeing with yourself, in writing, that this company is separate from you. That’s the entire point. For a single-member LLC, the operating agreement is the primary documentary evidence of separateness, because there are no member votes, no partnership disputes, and no negotiated splits to point to.

It also does practical work. A single-member agreement is what a bank uses to confirm you’re the sole authorized signer. It’s what a title company asks for when your LLC buys a duplex. It’s what names a successor so your business doesn’t freeze if something happens to you. Anyone who operates through an LLC largely alone — a rental property owner, a general contractor, a freelance consultant — is in exactly the situation where the document matters most and gets skipped most.

What actually needs to be in it

A usable Michigan operating agreement covers, at minimum:

Company basics — legal name exactly as filed with LARA, the resident agent and registered office, purpose, and duration
Members and ownership — each member’s name, capital contribution, and membership percentage
Management structure — member-managed or manager-managed, matching what your Articles say (MCL 450.4401), plus who signs what and above what dollar amount
Voting — what requires a majority, what requires unanimity, and how ties break
Distributions — how and when profits are distributed, and whether tax distributions are mandatory
Transfers — restrictions on sales, rights of first refusal, and what happens on death, disability, divorce, or bankruptcy
Buyout terms — a valuation method and payment schedule, written before anyone needs it
Dissolution — the vote required to wind up and the order in which assets are distributed
Tax treatment — disregarded entity, partnership, or an S-corp election, stated plainly

The provisions that get skipped in free templates are the buyout terms and the transfer restrictions — which are, predictably, the two that matter most when the relationship breaks down.

Template versus personalized

A blank template is fine if you understand every clause and will actually fill it in. Most people don’t, and most don’t. The failure mode isn’t having a bad agreement; it’s having a half-finished one that a bank rejects and a court reads as evidence that nobody took the entity seriously.

We prepare a personalized Michigan operating agreement for $49 — drafted around your actual ownership split, management structure, and tax election, and formatted so a bank accepts it the first time. Details are on our services page. Against the $50 state filing fee, it’s a small line item; you can see how it fits your total startup budget with our Michigan LLC cost calculator.

One habit worth building: revisit the agreement whenever ownership changes, someone is added or bought out, or you elect a different tax treatment. Amend it in writing and have everyone sign. Pair that with filing your $25 annual statement by February 15 — our annual statement filing service handles that if you’d rather not track it — and your company stays clean on both the internal and the state side.

Frequently Asked Questions

Do I file my operating agreement with LARA? No. It’s an internal document that stays with your company records and is never submitted to the state or made public. LARA only receives your Articles of Organization and your annual statements.

Can I write one myself? Yes — Michigan imposes no drafting requirements beyond it being a written agreement among the members. The risk is omitting the buyout, valuation, and transfer provisions that only matter years later, when it’s too late to add them by agreement.

Will a bank open my account without one? Some smaller institutions will for a single-member LLC with a clean EIN letter and Articles. Most banks ask for it, and essentially every lender does, so it’s not worth the trip back.

What if my Articles and my operating agreement disagree? Fix it immediately. If your Articles say manager-managed and your agreement describes member management, you’ve created an ambiguity a hostile party can exploit — amend whichever document is wrong so the two align.

Do I need one before or after I form the LLC? After. Form the entity first so you have the exact legal name and formation date to reference, then sign the agreement — our free 10-step Michigan LLC checklist lays out the order.

If you’re forming now and want the agreement handled alongside the filing, you can start your Michigan LLC here and add the personalized operating agreement at checkout.