A director’s access to company bank accounts is not automatic. It is granted through a formal board resolution and a bank mandate that names the director as an authorized signatory, defines what that signatory can do, and binds them to use company money only for legitimate business purposes. Step outside those limits and the consequences reach personal liability, tax exposure, and in serious cases criminal charges.
The reason the rules are this strict is structural. A company is a separate legal entity from the people who run it. The money in its accounts belongs to the company, not to any director who happens to have signing authority.
How a Director Becomes an Authorized Signatory
Access starts with a vote. The board of directors passes a resolution designating specific people as authorized signatories and spelling out exactly what each one can do: which accounts they can operate, how much they can spend without further approval, and whether certain transactions require a second signature. The company’s bylaws or articles of incorporation sit above that resolution and establish who has authority to approve financial access in the first place.
Once the resolution passes, the company sends the bank a mandate. This document identifies each authorized signatory, provides specimen signatures, and confirms the scope of authority. Banks will not process transactions from anyone not on the mandate, no matter what title that person holds inside the company.
Identity Checks the Bank Will Run
Adding a director to a business account triggers federal anti-money-laundering rules. Under the USA PATRIOT Act, banks must collect and verify identification from anyone being added. Expect to hand over your full legal name, date of birth, Social Security number, residential address, and a government-issued photo ID.
Banks also apply the FinCEN Customer Due Diligence rule, which requires them to identify beneficial owners who hold 25 percent or more of a legal entity and at least one individual who controls it. They also monitor the relationship on an ongoing basis for suspicious activity.1FinCEN. Information on Complying with the Customer Due Diligence (CDD) Final Rule
Controls That Limit What a Signatory Can Actually Do
Being listed as a signatory is not a license to spend freely. Well-run companies layer controls on top of basic access, and directors should welcome them, because they provide a record if a transaction is later questioned.
The most common control is a dual-signature requirement: transactions above a set dollar amount need two authorized signatories to approve them. A small business might set the threshold at $5,000; a larger corporation might require dual signatures on anything above $25,000. The board resolution defines the limit and the bank enforces it. Even where the bank does not verify both signatures on every check, keeping the policy in place creates an internal audit trail.
Companies also use spending-authority tiers. A CFO might be cleared for transactions up to $100,000, while a non-executive director might only be cleared for $10,000. Anything above the cap goes back to the full board. Combined with regular reconciliations and internal audits, these controls make it hard for any single person to quietly drain company resources.
What Company Funds Can Be Used For
Directors are expected to spend company money on activities that advance the business. Payroll, rent, utilities, vendor invoices, insurance premiums, and professional fees for accountants or attorneys are all straightforward. Buying equipment, vehicles, or real estate the company needs also fits squarely within permitted use.
Expense reimbursements are more sensitive. A director can be repaid for out-of-pocket business costs such as travel, lodging, and client meals, but the expense must be “ordinary and necessary” for the company’s operations. That language comes directly from the federal tax code: an ordinary expense is one common and accepted in your industry, and a necessary expense is one helpful and appropriate for the business.2Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses
Some categories carry stricter documentation rules. Travel, entertainment, gifts, and what the IRS calls “listed property” require records of the amount, the time and place, and the specific business purpose. Vague descriptions like “client development” will not survive scrutiny. Without adequate records the company loses the deduction and the payment may be reclassified as personal income to the director.3Internal Revenue Service. Topic No. 511 – Business Travel Expenses
What Directors Cannot Do
The line between company money and personal money is the single most important boundary a director has to respect. Crossing it creates exposure that runs from an ugly repayment demand to criminal prosecution.
Personal Expenses
Using the company account for personal purchases, family bills, vacations, or a personal car payment is prohibited. This is not a gray area. It does not matter that you plan to pay the money back or that you own the whole company. The corporation is a separate legal entity and its funds are not yours to borrow informally.
Directors who routinely blur this line risk something worse than a repayment demand. Courts may pierce the corporate veil, disregarding the company’s separate legal status and holding the director personally liable for the company’s debts, lawsuits, and contractual obligations. The limited liability protection that makes incorporation valuable disappears.
Loans to Directors
Company loans to directors are among the most heavily regulated transactions in corporate law, and the rules split sharply between public and private companies.
For publicly traded companies, the Sarbanes-Oxley Act effectively bans them. It is illegal for a public company to extend or maintain credit in the form of a personal loan to any director or executive officer, whether directly, through a subsidiary, or through any arrangement to extend credit. Loans on the books before July 30, 2002, are grandfathered in, but they cannot be materially modified or renewed.4Office of the Law Revision Counsel. 15 USC 78m – Periodical and Other Reports – Section: Prohibition on Personal Loans to Executives Narrow exceptions exist for consumer credit products such as home improvement loans or credit cards, but only where the company offers them in the ordinary course of its business, on market terms available to the general public.
Private companies face state-level restrictions instead. Most states allow loans to directors only with shareholder approval or a board determination that the loan benefits the corporation. The specifics vary, so any private company considering one needs legal advice on its own state’s rules before writing the check.
Self-Dealing
Beyond outright taking, directors breach their fiduciary duty of loyalty when they use their position to benefit personally at the company’s expense. Diverting a business opportunity to a side venture, steering contracts to a company controlled by a family member, or approving an inflated salary for yourself without independent board approval all qualify as self-dealing.
The usual protection for board decisions is the business judgment rule, which presumes that disinterested directors acting in good faith made reasonable choices. That protection vanishes when a director has a personal financial stake in the transaction. In that situation the director bears the burden of proving the deal was entirely fair to the company. Proper disclosure and recusal from conflicted votes are how directors avoid ending up there.
Tax Consequences of Misuse
Even where a director intends to repay money taken from the company, the IRS does not wait. When a corporation pays personal expenses for a director who is also a shareholder, the IRS treats the payment as a constructive dividend whether or not the board formally declared one.
The dividend portion of any corporate distribution is included in the director’s gross income and taxed accordingly.5Office of the Law Revision Counsel. 26 USC 301 – Distributions of Property Amounts above the corporation’s earnings and profits reduce the shareholder’s stock basis, and anything beyond that basis becomes capital gain. A director who uses $50,000 in company funds for personal renovations can end up owing income tax on the full amount plus penalties and interest for failing to report it. In serious cases the IRS pursues criminal prosecution.
The company’s side is also bad. Payments that are not ordinary and necessary business expenses under IRC ยง162 are not deductible.2Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses The company loses the deduction and can face its own penalties for failing to report the distribution correctly.
Legal Consequences
Civil Liability
The first consequence is a legal obligation to repay everything taken, often with interest. The company itself or its shareholders can bring a derivative lawsuit on the company’s behalf to recover misappropriated assets and seek damages. In a derivative action the recovery goes to the corporation, because the underlying harm was to the company.
Directors found to have breached their fiduciary duties can also be personally liable for consequential losses. If the company lost a business opportunity because a director diverted it, the damages can far exceed the amount directly taken.
Criminal Charges
Serious or deliberate misuse can lead to criminal prosecution. Federal wire fraud covers any scheme to defraud that uses electronic communications, which sweeps in virtually every modern bank transfer. A conviction carries up to 20 years in prison; if the scheme affects a financial institution, the maximum rises to 30 years and fines up to $1,000,000.6Office of the Law Revision Counsel. 18 USC 1343 – Fraud by Wire, Radio, or Television State theft, embezzlement, and fraud statutes apply on top of federal law, with penalties that vary by jurisdiction and amount.
Bars From Serving as a Director
For directors of public companies, the SEC can seek a court order permanently barring an individual from serving as an officer or director of any public company. Courts impose these bars in cases involving securities fraud, financial misrepresentation, or serious fiduciary breaches, and the duration can run from a set number of years to a lifetime. State courts and regulators have their own mechanisms for restricting individuals who have demonstrated they cannot be trusted with corporate authority.
Removing a Director’s Bank Access
When a director resigns, is removed, or no longer needs access, the company has to act quickly. The process mirrors how access was granted: the board passes a new resolution removing the individual as an authorized signatory and submits an updated mandate to the bank. Some banks also require a formal letter from a remaining authorized signer confirming the change.
Delays create real risk. A former director whose name is still on the mandate can technically authorize transactions until the bank receives written notice. Signatory updates deserve the same urgency as changing locks after an employee departure. The board should confirm directly with the bank that the old signatory has been removed from all accounts, online banking platforms, and credit facilities before considering the matter closed.