US LLC Operating Agreement: When Required by State

The Operating Agreement is the central governance document of a US Limited Liability Company. It defines membership, capital contributions, profit allocations, management structure, transfer restrictions, and dissolution. Each state’s LLC Act treats it differently — some make it mandatory in writing, some allow oral agreements, and some make it strongly advisable but optional. For founders incorporating in Delaware, California, New York, or Wyoming, the rules are not uniform.

This article walks the state-by-state landscape, the practical content of an Operating Agreement, and the consequences of operating without one.

What an Operating Agreement does

The Operating Agreement is a private contract among the members of an LLC. It typically covers:

• Membership and units — who owns what percentage.
• Capital contributions — what each member contributed (cash, property, services).
• Profit and loss allocation — how distributions are split.
• Management — member-managed vs manager-managed; voting thresholds.
• Transfer restrictions — when members can sell or transfer units.
• Withdrawal and buy-out — what happens when a member exits.
• Dissolution — triggers and wind-up procedure.
• Indemnification of members and managers.
• Tax elections — single-member disregarded, partnership, S-corp, C-corp.

When silent, state default rules under the LLC Act apply. Default rules are often unfavourable for closely-held LLCs (e.g., equal voting regardless of capital, mandatory dissolution on member exit).

State-by-state requirements

Delaware — under 6 Del. C. § 18-101(9), an Operating Agreement (called “limited liability company agreement”) may be written, oral, or implied. There is no requirement to have one. However, the agreement controls almost all aspects of the LLC, and the Delaware Court of Chancery is highly deferential to its terms (subject to statutory and equitable limits). Strongly recommended in writing.

California — under Corporations Code § 17701.10, an Operating Agreement may be written or oral. California state filings (LLC-12 Statement of Information) require disclosure of certain Operating Agreement details. Single-member LLCs without an Operating Agreement may face challenges in business banking and tax filings.

New York — under NY LLC Law § 417, written Operating Agreement is mandatory. The members must enter a written Operating Agreement within 90 days of formation. Failure does not invalidate the LLC but exposes members to default rules. Many NY banks require the Operating Agreement before opening accounts.

Wyoming — under W.S. § 17-29-110, an Operating Agreement may be written, oral, or implied. Strong privacy protections and minimal disclosure to the state make Wyoming popular for asset-protection LLCs.

Texas — under Bus. Org. Code § 101.052, a written or oral Operating Agreement (called “Company Agreement”) is permitted. Texas allows LLCs to wholly customise governance.

Florida — under Fla. Stat. § 605.0105, an Operating Agreement is permitted; if absent, default Florida LLC Act provisions apply. Strongly recommended.

Nevada — under NRS § 86.286, oral or written; no mandatory requirement.

In summary: only New York mandates a written Operating Agreement. Most other states allow flexibility but practical realities (banks, courts, tax advisors) make written agreements essentially required.

Single-member LLCs

For solo founders, many states’ default rules adequately cover a single-member LLC. But three reasons make a written Operating Agreement essential even for solo SMLLCs:

1. Asset-protection / corporate veil — courts reviewing a piercing-the-veil claim look for indicia of separate legal personhood. An Operating Agreement evidences this.
2. Banking — most banks (Chase, BofA, Wells Fargo) require an Operating Agreement to open the business account.
3. Tax — IRS filings and S-corp elections (Form 2553) often reference the Operating Agreement.

Multi-member LLCs

Multi-member LLCs without an Operating Agreement default to state law, which typically:

• Allocates profits equally regardless of capital contributions.
• Requires unanimous consent for major decisions in some states.
• Triggers mandatory dissolution on a member’s exit in some states.
• Provides no transfer restrictions — members can sell to outsiders freely.

These defaults are often disastrous for the actual business intent. Multi-member LLCs without a written Operating Agreement risk litigation that costs five-to-six figures to resolve.

Step 1 — Draft the agreement at formation

The Operating Agreement should be drafted at or before filing the Articles of Organization. Many founders treat it as an afterthought — that is the wrong order. Pre-formation drafting forces founders to discuss capital, profit splits, and management before disputes arise.

Step 2 — Cover the essential provisions

Minimum content:

• Names and addresses of all members.
• Membership units / percentages.
• Capital contributions (with valuation method).
• Profit and loss allocations.
• Distribution policy (when, how often, who decides).
• Management structure (member-managed or manager-managed).
• Voting thresholds (simple majority, supermajority, unanimous).
• Transfer restrictions (right of first refusal, drag-along, tag-along).
• Withdrawal and buy-out (valuation method, payment terms).
• Dissolution and wind-up.
• Indemnification.
• Tax elections.
• Dispute resolution (arbitration vs court).

Step 3 — Sign and store

All members sign the Operating Agreement. Originals (or full-execution copies) are stored:

• With the registered agent.
• With each member.
• With the company’s tax advisor and legal counsel.
• In the company’s minute book / records.

The Operating Agreement is not filed with the state — it is a private contract.

Step 4 — Update on changes

Major changes — new member admission, capital contribution, profit allocation change, manager replacement — should be documented as amendments to the Operating Agreement, signed by all members. Verbal amendments are technically valid in most states but evidentially weak.

What happens without one (the New York example)

A New York multi-member LLC without an Operating Agreement defaults to NY LLC Law:

• Profits and losses allocated by capital contribution under § 503.
• Management is by all members under § 401.
• Major decisions require majority of members under § 402.
• Transfer of interests — can transfer economic rights but not management rights without consent.
• Dissolution triggered by various events under § 701.

The defaults often surprise founders. A 10% member can block major decisions if the operating agreement is silent and the LLC operates by consent.

Dialogue: a founder skips the Operating Agreement

🐣 Chick: “We’re starting an LLC. Do we really need an Operating Agreement?”

🐮 Cow: “Where are you incorporating?”

🐣 Chick: “New York.”

🦉 Owl: “Mandatory in writing within 90 days. NY LLC Law § 417.”

🐣 Chick: “What if we incorporate in Delaware?”

🐮 Cow: “Not legally required. But your Delaware LLC will be controlled almost entirely by the Operating Agreement under § 18-101. Without one, you fall back on default rules — usually unfavourable.”

🦉 Owl: “And the bank will ask for one. Chase, BofA, all the major banks. Without it, no business account.”

🐣 Chick: “And taxes?”

🐮 Cow: “S-corp election or partnership classification — your CPA will reference the Operating Agreement to allocate K-1s.”

🦉 Owl: “Skipping the Operating Agreement saves a few hours and costs you litigation, banking delays, and tax confusion. Always draft it.”

Common mistakes

Using a generic template without customisation. Templates handle obvious cases. Founder disputes happen in edge cases — buy-outs, deadlocks, IP assignment. Customisation is required.

Forgetting transfer restrictions. Without a right of first refusal or transfer-restriction clause, members can sell to anyone — including competitors.

Mismatching capital contributions and profit allocations. If Member A contributed CA$100,000 and Member B contributed CA$10,000 but the agreement allocates 50/50 profits, the IRS may challenge under the substantial economic effect rules of IRC § 704(b).

Not addressing deadlock. What happens if members hold 50/50 and disagree? Without a deadlock-breaking mechanism, the LLC can be paralysed for years.

Skipping dissolution triggers. Without explicit triggers, mandatory dissolution under state default rules can apply — often on a single member’s exit.

Not signing. An unsigned Operating Agreement is at best evidence of an oral agreement, at worst nothing. Get signatures from all members.

Closing notes

Only New York legally requires a written Operating Agreement, but practical reality requires one in every state. Banks, courts, and tax advisors all rely on it. The cost of drafting (a few hours of attorney time or a careful self-draft) is dwarfed by the cost of state default rules in dispute. For any LLC with two or more members, the Operating Agreement is the single most important document after the Articles of Organization.

A Gyoseishoshi (行政書士) prepares bilingual Operating Agreement templates for solo and multi-member LLCs. A US-licensed attorney should draft or review any agreement involving complex capital structure, S-corp elections, or cross-border tax planning.

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Disclaimer

Legal information, not legal advice. MmowW Scrib🐮 is operated by a licensed Gyoseishoshi (行政書士) office in Japan. We are not US attorneys. For binding advice on Operating Agreement drafting, member disputes, or tax elections, consult a US-licensed attorney and a CPA.

Sources

• Delaware LLC Act, 6 Del. C. § 18-101 — https://delcode.delaware.gov/title6/c018/index.html
• New York LLC Law § 417 — https://www.nysenate.gov/legislation/laws/LLC/417
• California Revised Uniform LLC Act — https://leginfo.legislature.ca.gov/faces/codes_displayexpandedbranch.xhtml?tocCode=CORP&division=&title=2.6
• Wyoming LLC Act, W.S. § 17-29 — https://wyoleg.gov/statutes/compress/title17.pdf
• IRS, Limited Liability Company (LLC) — https://www.irs.gov/businesses/small-businesses-self-employed/limited-liability-company-llc