What commercial banking is and who uses it

Commercial banking is the business of taking deposits from companies and lending that money back out to other companies—plus handling the payments, transfers, and cash management that keep a business running day to day. A commercial bank is not the same as the retail bank where you keep your personal checking account, though many large banks do both. Commercial banks focus on businesses of all sizes: a plumbing contractor with five employees, a manufacturing plant, a real estate development firm, a hospital network.

The core work is straightforward: a business deposits its revenue, the bank holds it, and the bank lends portions of those deposits to other businesses that need capital. The bank makes money on the spread—the difference between what it pays depositors in interest and what it charges borrowers. But commercial banking also includes a vast machinery of payments, settlements, and liquidity management that most business owners never see directly, even though they depend on it every day.

A business might use a commercial bank for a loan to buy equipment, a line of credit to cover seasonal cash gaps, a merchant account to accept card payments, wire transfer services, payroll processing, or straightforward a place to park cash overnight. Some commercial banks are large institutions like JPMorgan Chase or Bank of America. Others are regional or community banks that focus on a specific geography or industry.

Key Takeaways

  • Commercial banks take deposits from businesses and lend that money to other businesses, earning the difference between deposit rates and loan rates.
  • Commercial banking includes lending, deposit accounts, payment processing, wire transfers, and cash management services that businesses need to operate.
  • A commercial bank is distinct from an investment bank, which buys and sells securities, and from a retail bank, which serves individual customers—though one institution may do all three.
  • The Federal Reserve sets the discount rate and reserve requirements that shape how much a commercial bank can lend, and the FDIC insures deposits up to $250,000 per account.
  • Commercial banks settle payments through the Federal Reserve's payment systems, which is why a wire transfer clears in hours but an ACH transfer takes one to two business days.

How a commercial bank makes money

A commercial bank's primary revenue comes from net interest margin—the gap between the interest rate it pays on deposits and the interest rate it charges on loans. If a business deposits $100,000 and the bank pays 0.5% annual interest, the bank owes the depositor $500 per year. If the bank lends $80,000 of that deposit to another business at 6% interest, the bank collects $4,800 per year. The difference—$4,300—is part of the bank's profit, minus operating costs.

A commercial bank also earns fees: origination fees on loans, monthly maintenance fees on deposit accounts, wire transfer fees, overdraft fees, and fees for services like payroll processing or merchant card processing. A large commercial bank might process thousands of transactions daily across hundreds of business accounts, and each transaction can generate a small fee. These fees add up significantly across the institution.

The bank must hold a portion of deposits in reserve—money it cannot lend out—as required by the Federal Reserve. The reserve requirement varies but is typically a small percentage of total deposits. This requirement exists to may support the bank can meet withdrawal demands and to give the Federal Reserve a tool to control how much money is circulating in the economy.

The difference between commercial, investment, and retail banking

Commercial banking serves businesses. Investment banking helps companies raise capital by issuing stocks or bonds, advises on mergers and acquisitions, and trades securities. Retail banking serves individuals with checking accounts, savings accounts, mortgages, and personal loans.

Many large banks—JPMorgan Chase, Bank of America, Citigroup—operate all three divisions under one corporate umbrella. A business owner might use the commercial division for a term loan, while the same bank's retail division serves the owner's personal accounts. The investment division might advise the company on a future acquisition. Legally and operationally, these divisions are often separate, with different risk management and compliance teams, but they share the same parent company and brand.

Smaller banks often focus on one or two of these areas. A community bank might do commercial and retail banking but not investment banking. A boutique investment bank might do mergers and acquisitions but not take deposits at all.

How commercial banks settle payments and transfers

When a business sends a wire transfer, the money does not move directly from one bank account to another. Instead, both banks have accounts at the Federal Reserve, and the Federal Reserve moves money between those accounts. This is called settlement. A wire transfer settles the same day because the Federal Reserve's wire system (called Fedwire) operates in real time during business hours.

An ACH transfer—used for payroll, bill payments, and recurring transfers—also settles through the Federal Reserve, but on a delayed schedule. The Federal Reserve processes ACH batches twice daily, and transfers typically clear one to two business days after initiation. This delay exists because ACH transfers are bundled together and processed in batches, rather than individually.

A check is a different settlement path. When a business deposits a check, the bank sends it to a clearing house, which routes it to the bank that issued the check. That bank verifies the account has sufficient funds and transfers the money. Depending on the banks involved and the clearing house used, a check can take three to five business days to clear. During that time, the depositing bank may give the business provisional credit—the money appears in the account, but the bank has not yet received final payment.

Commercial banks also use correspondent banking relationships to move money internationally. A U.S. bank that does not have a branch in another country will use a local bank in that country as a correspondent—a partner bank that holds an account and executes transfers on its behalf. This is why international wire transfers take longer and cost more than domestic ones.

Regulation and deposit insurance for commercial banks

Commercial banks are regulated by multiple federal and state agencies. The Federal Reserve sets monetary policy, supervises large banks, and operates the payment systems that banks use. The Office of the Comptroller of the Currency (OCC) charters and supervises national banks. The Federal Deposit Insurance Corporation (FDIC) insures deposits and supervises state-chartered banks that are not members of the Federal Reserve.

The FDIC insures deposits up to $250,000 per depositor, per bank, per account category. This means if a commercial bank fails, a business with $250,000 in a checking account at that bank will recover the full amount. A business with $500,000 in the same account will recover only $250,000. Separate account categories—such as a business checking account versus a business savings account—are insured separately, so a business could have $250,000 insured in checking and another $250,000 insured in savings at the same bank.

Banks must maintain a minimum capital ratio—a measure of the bank's own money relative to the loans and investments it holds. This requirement ensures the bank can absorb losses without becoming insolvent. The Federal Reserve and other regulators conduct regular examinations of banks to verify they are following these rules and managing risk appropriately.

The role of the Federal Reserve in commercial banking

The Federal Reserve is not a commercial bank itself, but it is the central bank that commercial banks depend on. Every commercial bank has an account at the Federal Reserve, called a reserve account. Banks deposit money there to meet reserve requirements and to settle payments with other banks.

The Federal Reserve sets the discount rate—the interest rate it charges banks when they borrow directly from the Federal Reserve's "discount window." This rate influences the interest rates that commercial banks charge their customers. When the Federal Reserve raises the discount rate, commercial banks typically raise the rates they charge on loans. When it lowers the rate, commercial banks typically lower loan rates.

The Federal Reserve also operates the payment systems that commercial banks use: Fedwire for wire transfers, the ACH network for batch transfers, and the National Settlement Service for checks. These systems are the infrastructure that allows money to move between accounts at different banks. Without them, a business could only transfer money to accounts at the same bank.

Types of accounts and services commercial banks offer

A commercial bank typically offers a business checking account, where a company deposits revenue and pays bills. These accounts usually have higher minimum balances and lower interest rates than retail checking accounts. The bank may charge monthly maintenance fees, per-check fees, or per-transaction fees.

A business savings account or money market account pays interest on deposits and is used for short-term cash reserves. Interest rates vary based on the bank's cost of funds and the Federal Reserve's rate environment.

A line of credit is a loan that a business can draw on as needed, up to a maximum amount. The business pays interest only on the amount it has drawn, not on the full credit line. This is useful for covering seasonal cash gaps or unexpected expenses.

A term loan is a fixed amount of money lent for a set period, typically one to ten years. The business repays the loan in regular installments and pays interest on the outstanding balance.

A merchant account allows a business to accept credit and debit card payments. The bank charges a percentage of each transaction (called the interchange fee) plus a monthly account fee.

Why timing matters in commercial banking

A business's cash flow depends on when money actually arrives in its account, not when it is sent. A customer might pay an invoice on Monday, but if the payment is sent by check and the business deposits it Tuesday, the money will not be available until Thursday or Friday. During that time, the business cannot use the money to pay its own bills.

This is why many businesses push customers to pay by ACH or wire transfer instead of check: ACH clears in one to two business days, and wire transfers clear the same day. A business that receives large payments can save thousands of dollars per year in interest by accelerating the time money arrives in its account.

Commercial banks also offer cash management services that help businesses optimize their cash flow: automated clearing house (ACH) services, wire transfer services, lockbox services (where customers mail payments to a bank address and the bank deposits them when ready), and sweep accounts (where excess cash is automatically moved to an interest-bearing account overnight).

Frequently Asked Questions

Is a commercial bank the same as a business bank?

Yes, the terms are used interchangeably. A commercial bank is a bank that serves businesses. Some banks call their business division the "commercial banking" division. The distinction is between commercial banking (serving businesses) and retail banking (serving individuals).

What happens to my business deposits if the bank fails?

The FDIC insures deposits up to $250,000 per account category. If your business has $300,000 in a checking account and the bank fails, the FDIC will return $250,000. The remaining $100,000 is at risk. You can protect more money by spreading deposits across multiple banks or multiple account categories at the same bank.

Why does a wire transfer clear faster than an ACH transfer?

Wire transfers settle in real time through the Federal Reserve's Fedwire system, which operates continuously during business hours. ACH transfers are processed in batches twice daily, so they take one to two business days. Wire transfers cost more because they require when ready settlement and manual processing.

Can a small business use a commercial bank, or only large corporations?

Commercial banks serve businesses of all sizes. A sole proprietor with one employee can open a commercial bank account. Some banks focus on small businesses, while others focus on large corporations. Community banks often specialize in small and mid-sized businesses in their region.

What is the difference between the interest rate the Federal Reserve sets and the rate my bank charges?

The Federal Reserve sets the discount rate, which is the rate it charges banks. Your bank adds a markup to that rate based on its own costs, the risk of your loan, and how much profit it wants to make. A bank might borrow from the Federal Reserve at 5% and lend to you at 7%, keeping the 2% difference as profit.