Authorized Signatory Bank Account Letter Template for the United States

An Authorized Signatory Bank Account Letter is a formal banking document that legally designates specific individuals to operate business bank accounts under United States federal banking law. This document serves as official notification to your bank about who has the authority to conduct transactions, sign checks, and make account decisions on behalf of your organization. Banks require this letter to comply with strict federal regulations and to protect both your business and the financial institution from unauthorized account access.

What is signature authority on a bank account?

Signature authority on a bank account is the formal permission a person holds to transact on that account: to sign checks, approve wire and ACH transfers, withdraw funds, and view balances and statements. For a business, that authority does not belong to a person by default. It is granted by the account holder (the company) and recorded with the bank, usually through a signature card plus an Authorized Signatory Letter. The signatories named in the letter are the only people the bank will treat as authorized signers on the account, so the letter controls who can move company money.

Who can be an authorized signatory on a bank account?

An authorized signatory is any individual your organization names in the letter and the bank verifies, commonly owners, directors, officers, and finance or operations staff who handle payments. You can grant a single person full authority or require two or more signatures above a stated dollar amount. You can also limit a signatory to certain activities, such as viewing statements or approving payments up to a set threshold, without granting full withdrawal rights. The letter should list each person's full legal name, title, and the exact scope of their signature authority so the bank applies the right limits.

When do you need this document?

You need an Authorized Signatory Bank Account Letter whenever you open new business accounts, add or remove signatories, or change existing authorization levels. This document is essential when hiring new employees who need banking privileges, promoting staff to positions requiring financial authority, or when current authorized signatories leave your organization. Banks also request updated letters when they detect discrepancies in signature cards or when conducting routine compliance reviews. If your business structure changes through mergers, acquisitions, or reorganization, you'll need to provide fresh authorization documentation to maintain account access.

How do you change or remove signatories on a bank account?

To change who holds signature authority, you issue a fresh Authorized Signatory Letter that adds the new person or names the signatory being removed, signed by an officer or account holder who already has authority to act for the company. Removing a departing signatory promptly matters because, until the bank updates its records, that person may still be able to transact. Keep each version of the letter on file with the date it took effect so you have a clean trail of who held authority at any point. For businesses that authorize signatories by board action, you may also need a board resolution recording the decision before the bank will update the account.

A worked example

Suppose a US construction company opens a project account and wants two of its three directors to control payments. The letter names Director A and Director B as authorized signatories with full authority, names Director C with view-only access to statements, and states that any single payment over $25,000 requires both A and B to sign. When Director B later leaves, the company issues a new letter removing Director B, adds the incoming finance lead with authority up to $10,000, and files both versions. The bank updates its signature card against the current letter, and only the named people can move funds.

International and multi-entity accounts

Businesses that run international operations often hold accounts across several banks and currencies, and each bank sets its own rules for who it recognizes as an authorized signer. If your organization opens accounts abroad or handles cross-border transfers, confirm the signatory requirements with each relevant institution, since local recordkeeping and identity-verification standards differ from the US framework. A clear letter for every entity keeps your treasury management consistent and makes it easier to track who controls funds in each account. Remember that any account earning interest or holding operating cash still depends on the bank having current signatory records before it releases funds.

Key legal considerations

The authorization statement must clearly define the scope of each signatory's authority, including transaction limits, types of permitted transactions, and any restrictions on their banking powers. You should specify whether signatories can act independently or if multiple signatures are required for certain transactions. The letter must include proper identity verification information, such as Social Security numbers, government-issued identification details, and official titles within your organization. Consider including liability provisions that outline each party's responsibilities and potential consequences for unauthorized actions. Review your existing corporate bylaws and banking agreements to ensure the authorization letter aligns with your company's internal governance structure and doesn't conflict with existing legal obligations. If you need a related permission document, an authorization to sign on my behalf covers cases where one person acts for another.

Legal requirements in United States

Under the Bank Secrecy Act and USA PATRIOT Act, banks must verify the identity of all authorized signatories through their Customer Identification Program (CIP). Your letter must include complete legal names, current addresses, dates of birth, and identification numbers for each authorized individual. The document must be signed by authorized corporate officers or account holders with existing signatory authority. Federal Reserve regulations require banks to maintain current signatory information and may request periodic updates to ensure compliance with anti-money laundering requirements. The Uniform Commercial Code governs the legal relationship between banks and account holders, making proper authorization documentation crucial for protecting your business from liability for unauthorized transactions. FDIC regulations also mandate that banks maintain accurate records of account signatories as part of their deposit insurance compliance requirements.

Privacy and recordkeeping

Because the letter carries personal data, such as names, dates of birth, and identification numbers, handle it in line with your bank's information-security and privacy policy and your own data-protection practices. Store signed copies securely, share them only with the bank's account-services team, and keep the file current so each payment the business makes traces back to a person with recorded signature authority. Before you submit, contact your bank's account-services or relationship team to confirm the exact format and supporting documents they expect, as requirements vary between institutions and can change from year to year.