Do state laws require unanimous member consent for LLC bank account changes without an operating agreement?

Without an operating agreement, state laws often default to unanimous consent for LLC bank changes. Learn your risks and how TermScore can help.

October 26, 2026TermScore Legal Intelligence GroupStatutory & Corpus Verified585 words

In the absence of an operating agreement, most U.S. state statutes default to a requirement of unanimous member consent for significant management decisions, including changing bank account signatories or switching financial institutions. Operating without a written agreement subjects your LLC to these rigid statutory defaults, which prioritize consensus over operational efficiency.

The Legal Reality of Default Statutes

When you form an LLC, you are governed by your state's Limited Liability Company Act. If you fail to draft an operating agreement, you are operating under "default rules." These rules are designed to protect minority members by requiring unanimous consent for any action outside the ordinary course of business.

Why Banking Changes Trigger Unanimous Consent

Changing a bank account is rarely considered an "ordinary course of business" activity under state law. Because it involves the movement of capital and the authorization of new signatories, it is classified as a fundamental structural change. In states like Delaware, California, and New York, if your governing documents are silent, the law assumes that all members must agree on who controls the company's purse strings.

Key takeaway: Never assume you have the authority to unilaterally change banking access. Without a written agreement, you are legally bound by the default unanimous consent rule of your state of formation.

Action Item: Check your state's Secretary of State website to locate the specific "Default Rules" section of the LLC Act for your jurisdiction.

Risks of Proceeding Without Unanimous Consent

Attempting to change an LLC bank account without the express, documented consent of all members creates significant legal and financial exposure.

  • Breach of Fiduciary Duty: Minority members can sue for breach of the duty of care or loyalty, claiming you acted outside your authority.
  • Bank Liability: Banks are highly risk-averse. If a member disputes your authority, the bank may freeze the account entirely, halting your business operations.
  • Personal Liability: Courts may pierce the corporate veil if they determine you acted in bad faith or outside the scope of your authority, exposing your personal assets to business debts.
Risk FactorPotential Consequence
Unauthorized Signatory ChangeAccount freeze and legal injunctions
Lack of DocumentationInability to prove authority to the bank
Member DisputeLitigation and dissolution of the LLC

Action Item: If you are currently in a dispute, cease all banking changes immediately and seek written ratification from all members before proceeding.

The Role of the Operating Agreement

The primary purpose of an operating agreement is to override state default laws. By drafting a custom agreement, you can replace the "unanimous consent" requirement with a "majority rule" or "manager-managed" structure.

Defining Authority in Your Agreement

Your operating agreement should explicitly state who has the power to:

  1. Open, close, or modify bank accounts.
  2. Appoint or remove authorized signatories.
  3. Transfer funds exceeding a specific dollar threshold.

By setting these parameters, you provide the bank with the legal documentation they require to process changes without needing a signature from every member of the LLC.

Key takeaway: An operating agreement is the only way to legally bypass the default unanimous consent requirements imposed by state law.

Action Item: Review your existing operating agreement to see if it contains a "Banking and Signatory Authority" clause. If it is missing, draft an amendment immediately.

How TermScore Simplifies Compliance

Navigating the intersection of state law and internal governance is complex, but you don't have to do it alone. TermScore uses advanced AI to analyze your operating agreements and bylaws, instantly flagging clauses that conflict with state default laws or create ambiguity regarding banking authority. By identifying these gaps before they become disputes, TermScore ensures your LLC remains compliant and operational. Visit TermScore today to see how our platform can audit your legal documents for hidden risks.

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