A commercial account is a deposit account a bank opens in the name of a business rather than an individual, used to receive revenue and pay expenses under the company’s legal name and tax ID. It draws a clean line between business money and personal money, which matters for liability protection, tax filing, and access to services personal accounts don’t offer. It also comes with fewer legal protections against fraud than a personal account, so knowing the rules before you open one is worth the time.
Why the Separation Matters
If your business is an LLC or corporation, the whole reason for that structure is to keep personal assets out of reach of business creditors. That protection depends on treating the business as genuinely separate. Running business expenses through a personal account, or paying personal bills from the business account, gives a creditor’s attorney the argument they need to “pierce the corporate veil” and go after your house, car, or savings.
Courts look at whether a business observed basic formalities, and one of the most scrutinized is whether the owner kept business money separate. A commercial account creates that record automatically. Every deposit and payment is documented under the business’s name and EIN.
The same records feed your tax return. A C-corporation files Form 1120.1Internal Revenue Service. About Form 1120, U.S. Corporation Income Tax Return An S-corporation uses Form 1120-S.2Internal Revenue Service. About Form 1120-S, U.S. Income Tax Return for an S Corporation A sole proprietor reports on Schedule C with their personal Form 1040. In each case, the commercial account is the single source of truth for the numbers on the return.
The Constructive Dividend Risk
Owners of closely held corporations carry an extra tax exposure when business and personal money mix. If the IRS audits the company and finds personal expenses paid from the business account, it can reclassify those payments as constructive dividends taxable to you as the shareholder. No formal dividend has to be declared. Any distribution from a corporation to a shareholder is treated as a dividend to the extent of earnings and profits; the excess reduces stock basis, and anything beyond basis is taxed as a capital gain.3Office of the Law Revision Counsel. 26 USC 301 – Distributions of Property A separate commercial account makes it much harder for an examiner to argue that a business payment was really personal spending.
Types of Commercial Deposit Accounts
Commercial Checking
Commercial checking is the operating account. Customer payments come in, vendors and employees get paid out, and the account clears ACH transactions, wires, and card deposits. Most commercial checking accounts don’t pay interest. Pricing often runs on an analyzed balance model, where fees track monthly transaction volume rather than a flat rate, and a minimum average daily balance usually waives the maintenance charge.
Savings, Money Market, and CD Accounts
A commercial savings account holds cash reserves you might need on short notice. A commercial money market account pays a somewhat higher yield while still allowing withdrawals, which suits working capital you don’t need this week but might need this quarter. A commercial certificate of deposit locks funds for a set term, commonly 6, 12, or 24 months, in exchange for a higher fixed rate.
Sweep Accounts
A sweep account moves excess cash from checking into a higher-yielding vehicle at the end of each business day and returns it when operations need it. Sweeps can also spread deposits across a network of partner banks to expand FDIC coverage. For businesses carrying large operating balances, this puts idle cash to work without manual transfers.
What Comes With the Account
Payments
Opening a commercial account usually opens the door to merchant services so the business can accept credit and debit cards, in person or online. Transaction pricing stacks an interchange fee paid to the card-issuing bank, an assessment fee to the card network, and a processor markup, with all-in costs generally landing between 1.5% and 3.5%. Online payments run higher than card-present transactions because of fraud risk.
ACH, Wires, and Deposits
ACH transfers move money electronically in bulk, which is how payroll, vendor payments, and recurring billing get done. Per-item costs are typically under a dollar, well below the true cost of paper checks once printing, postage, and handling are counted.
Wires move large sums with same-day finality. Domestic wires generally cost $25 to $50, and international transfers cost more, but the money arrives that day, which matters for closings and time-sensitive supplier payments.
Remote Deposit Capture lets you scan paper checks from your office. Most commercial accounts include it alongside an online portal for managing balances, payables, and receivables in real time.
Positive Pay
Positive Pay is the bank’s main defense against check fraud and unauthorized ACH debits. You upload the details of checks you’ve issued — number, amount, payee — and the bank flags anything presented that doesn’t match, giving you the call on whether to pay or reject. ACH Positive Pay works the same way for electronic debits: you supply the list of authorized originators and limits, and the bank blocks anything outside them. Given the fraud rules below, treat this as standard equipment and ask about it when you open the account.
Business Credit
Your account history is the foundation of a borrowing relationship. Banks read average daily balances, cash flow, and deposit consistency to underwrite lines of credit and term loans. Twelve to twenty-four months of clean account activity often carries more weight than a business plan, because it shows how the business actually moves money.
Fraud Rules Are Not the Same as Your Personal Account
This is where many owners are caught off guard. The federal consumer rules that cap your liability for unauthorized electronic transfers, require provisional credits, and set investigation timelines come from Regulation E, which applies only to accounts established primarily for personal, family, or household purposes.4eCFR. 12 CFR 1005.2 – Definitions Commercial accounts are outside that definition.
If a fraudster drains your business account through a forged ACH debit or an unauthorized wire, the bank is not required to front you a provisional credit or reimburse you under the consumer caps. Commercial wire transfers are governed by UCC Article 4-A, which allocates the loss based on whether the bank followed a “commercially reasonable” security procedure that both parties agreed to. If it did and acted in good faith, the loss can sit with the business.
The practical response: negotiate strong security procedures at account opening, turn on every fraud tool the bank offers, and monitor accounts daily. The federal safety net you have at home isn’t there.
FDIC Insurance for Business Deposits
Deposits held by a corporation, partnership, or unincorporated association are insured by the FDIC up to $250,000 per depositor, per bank. That coverage is separate from the personal deposit insurance of any owner or officer, so business balances don’t eat into personal coverage.5FDIC. Corporation, Partnership, and Unincorporated Association Accounts
Sole proprietorships are the exception. The FDIC treats a sole proprietorship’s deposits as the owner’s single accounts, so business and personal balances at the same bank are combined under one $250,000 cap.5FDIC. Corporation, Partnership, and Unincorporated Association Accounts
If your business regularly holds more than $250,000, a sweep network can spread funds across multiple FDIC-insured banks so each bank’s share stays under the limit. Some treasury programs offer this coverage into the millions without requiring you to open accounts at each institution.
Cash Reporting Obligations
Any business that receives more than $10,000 in cash in a single transaction, or in related transactions, must file IRS Form 8300.6Office of the Law Revision Counsel. 26 USC 6050I – Returns Relating to Cash Received in Trade or Business Transactions are related if they occur within 24 hours, or if you know they’re part of a connected series even when spread over a longer period.7Internal Revenue Service. Report of Cash Payments Over $10,000 Received in a Trade or Business
Deliberately breaking a large cash payment into smaller amounts to duck the threshold is called structuring, and it carries the same civil and criminal penalties as failing to file.6Office of the Law Revision Counsel. 26 USC 6050I – Returns Relating to Cash Received in Trade or Business If cash is a real part of your business, your account records are the backbone of your documentation.
How to Open a Commercial Account
Get an EIN
Start with an Employer Identification Number from the IRS. Corporations, partnerships, LLCs, and any business with employees need one. The online application is free and issues the number immediately.8Internal Revenue Service. Get an Employer Identification Number A sole proprietor can technically use their Social Security number, but an EIN keeps the SSN off checks, invoices, and vendor forms.
Bring Your Formation Documents
The bank needs proof the business legally exists. For an LLC, that’s the Articles of Organization filed with the state. For a corporation, the Articles of Incorporation. Bring the stamped filed copies from the Secretary of State, not drafts. Partnerships should bring the partnership agreement.
Identify Beneficial Owners
Federal anti-money laundering rules require banks to identify every individual who owns 25% or more of the equity in a legal entity, plus at least one person with significant management authority such as a CEO, CFO, or managing member.9eCFR. 31 CFR 1010.230 – Beneficial Ownership Requirements for Legal Entity Customers Each identified owner provides full legal name, date of birth, residential address, and a government-issued ID number. Bring a driver’s license or passport.
Have Authorization Ready
For a corporation, the bank will usually ask for a corporate resolution or board minutes authorizing the account and naming who can sign on it. Multi-member LLCs may need an equivalent authorization drawn from the operating agreement. Getting these together before your appointment saves a second trip.