Does state law require unanimous member consent for LLC bank account changes without an operating agreement?

The Default Rule: State Statutes and LLC Banking Authority

If your LLC lacks a written operating agreement, you are governed by your state’s default LLC statute. In most jurisdictions, changing bank account signatories or authorized users is considered a significant management decision. Depending on your state, this may require unanimous consent from all members, or it may be permitted by a simple majority vote. Because state laws vary significantly, there is no universal rule, and relying on default statutes creates substantial operational risk.

Key takeaway: Without an operating agreement, you are subject to the default "gap-filler" rules of your state. These rules often prioritize unanimous consent for non-routine financial changes to protect minority members.

Action Item: Locate your state’s LLC Act online and search for the section titled "Management of the LLC" or "Voting Rights." This will define the default threshold for member actions.

Why State Default Rules Are Dangerous

State statutes are designed to be neutral, not efficient. They are intended to protect members from fraud or unauthorized asset dissipation, which often results in high voting thresholds for financial transactions. When you operate without an operating agreement, you lose the ability to define "ordinary course of business" versus "extraordinary actions."

Common Statutory Thresholds

• Unanimous Consent: Required in many states for any action that falls outside the ordinary course of business, such as changing banking institutions or adding new authorized signers.
• Majority Consent: Some states allow a simple majority (51%) for management decisions, but banks often demand unanimous written consent as a risk-mitigation policy regardless of state law.
• Per Capita vs. Pro-Rata: Default rules often dictate voting power based on the number of members (per capita) rather than ownership percentage, which can lead to unexpected deadlocks.

Comparison of Governance Models

Action Item: Review your bank’s internal "Corporate Resolution" requirements. Even if state law allows a majority, your bank may refuse to process changes without a unanimous resolution if no operating agreement is on file.

The Practical Reality of Banking Compliance

Banks are risk-averse institutions. When you walk into a branch to change signatories, the bank’s compliance department does not care about your internal LLC dynamics; they care about liability. If you do not have an operating agreement, the bank will likely require a "Certificate of Authority" or a "Corporate Resolution" signed by every member of the LLC.

Red Flags for LLC Banking

• Lack of Documentation: If you cannot produce a signed document authorizing a bank change, the bank will default to the most restrictive interpretation of state law.
• Member Deadlock: If your state requires unanimity and one member refuses to sign, your LLC’s financial operations will effectively freeze.
• Ambiguous Authority: Without a clear document, any member may have the legal right to withdraw funds, creating a massive security risk for the company.

Action Item: If you are currently operating without an agreement, draft a simple "Unanimous Written Consent" document for any banking change to satisfy bank compliance officers immediately.

Mitigating Risk Through Formalization

The only way to escape the uncertainty of state default rules is to adopt a formal operating agreement. This document acts as the "constitution" of your LLC, allowing you to override state statutes regarding voting, management, and financial authority. By explicitly stating that a majority vote is sufficient for banking changes, you prevent the risk of a single dissenting member paralyzing your business.

1. Identify the specific management structure (Member-managed vs. Manager-managed).
2. Define the voting threshold for financial transactions (e.g., 51% vs. 66%).
3. Explicitly grant the authority to open/close accounts to specific roles or individuals.
4. Have all members sign and notarize the document.

Action Item: Consult with a legal professional to draft an operating agreement that specifically addresses banking authority, ensuring it aligns with your business goals rather than state-imposed defaults.

If you are unsure whether your existing contracts or operating agreements contain sufficient protections, TermScore can automatically analyze your documents to identify gaps in authority, voting thresholds, and potential compliance risks, providing you with actionable insights to secure your LLC’s financial future.