When people say “commercial bank,” they usually mean a bank that accepts deposits and makes loans. In practice, commercial banks also offer a wider range of services, including checking and savings accounts, credit cards, mortgages, and business banking services.
One reason this topic gets confusing: banks can be grouped in more than one way:
- By charter and regulator (national vs. state-chartered)
- By customer focus (retail vs. business/commercial)
- By size/geography (community, regional, national footprint)
- By delivery model (branch-based vs. online-only)
These categories can overlap. For example, a bank can be state-chartered, retail-focused, and online-first at the same time.
What is a commercial bank?
A commercial bank is a financial institution that takes deposits and provides loans and other banking services to consumers and businesses. Commercial banks are the most common type of bank most people use.
Typical services include:
- Checking and savings accounts
- Certificates of deposit (CDs)
- Credit cards
- Personal loans and mortgages
- Business loans and lines of credit
- Cash management and treasury services for businesses
Britannica’s breakdown is useful here: commercial banks generally serve both retail customers (individuals/small businesses) and business clients (companies and institutions).
Deposit insurance and regulation (U.S.)
If your bank is FDIC-insured, eligible deposit accounts are automatically insured — you do not need to apply for coverage. The standard FDIC insurance amount is $250,000 per depositor, per FDIC-insured bank, per ownership category.
FDIC insurance applies to deposit products such as:
- Checking accounts
- Savings accounts
- Money market deposit accounts (MMDAs)
- Certificates of deposit (CDs)
It does not cover non-deposit investments sold at banks, such as mutual funds, annuities, stocks, or bonds.
At the federal level, bank supervision is shared across agencies including the Federal Reserve, OCC, and FDIC, with state regulators also involved depending on the bank’s charter.
The most accurate way to understand “types” of commercial banks
1) National banks (charter type)
A national bank is a commercial bank chartered by the Office of the Comptroller of the Currency (OCC). It is not defined by whether it operates in one state or many.
FFIEC describes a national bank as a commercial bank whose charter is approved by the OCC, and notes that national banks are members of the Federal Reserve System and part of the FDIC system.
Best for: Customers who want a bank operating under a federal (OCC) charter.
2) State-chartered banks (charter type)
A state-chartered bank is chartered under state law rather than by the OCC. In the U.S., some state-chartered banks are Federal Reserve members and some are not. Federal and state agencies share supervision responsibilities depending on membership status.
OCC’s guidance also points out that if a bank is not a national bank or federal savings association, supervision may involve the FDIC, Federal Reserve, and state banking regulators.
Best for: Customers or businesses that prefer local or regional banks, though many state-chartered banks are large institutions too.
3) Community banks (size/local focus)
“Community bank” usually refers to a smaller bank with a local or regional focus and closer ties to the communities it serves. This is more of a market category than a strict legal charter category. Many community banks are state-chartered, but not all are the same.
Best for: People and small businesses looking for local decision-making and more personal service.
4) Regional banks (size/geography)
Regional banks are typically larger than community banks and operate across a broader geographic area, but they are not necessarily nationwide brands. Like “community bank,” this is usually a size/footprint label, not a formal charter category.
Best for: Customers who want more services than a small local bank may offer, while still preferring a regional footprint.
5) Retail banks (customer focus)
Retail banking refers to services aimed at individual consumers (and often small businesses), including:
- Checking and savings accounts
- Personal loans
- Mortgages
- Credit cards
- Branch/ATM access (for many institutions)
Retail banking is often a division or service line within a commercial bank — not always a separate kind of bank.
Best for: Everyday personal banking needs.
6) Business/commercial banking (customer focus)
Business or commercial banking focuses on services for businesses, from small firms to large companies. These services may include:
- Business checking
- Lines of credit
- Commercial real estate loans
- Treasury/cash management
- Payroll and merchant services
- Foreign exchange support (at some banks)
Again, this is often a service line inside a commercial bank, not a completely separate institution type.
Best for: Businesses that need financing, cash management, and day-to-day banking support.
7) Online banks (delivery model)
Online banks (or digital-first banks) deliver banking primarily or entirely through websites and mobile apps, without a traditional branch network. Britannica notes that some banks operate entirely online.
Important point: “online bank” describes how the bank delivers services, not whether it is national or state-chartered. An online bank can still be a commercial bank regulated under the same U.S. banking system.
Best for: People who prefer digital banking and don’t need branch access often.
Quick comparison (accurate version)
Here’s the cleaner way to think about the categories:
- Charter type: National bank, state-chartered bank
- Customer focus: Retail banking, business/commercial banking
- Size/footprint: Community bank, regional bank, large national bank
- Delivery model: Branch-based, online-only/digital-first
A single bank can fit into multiple categories at once. For example, a bank might be:
- state-chartered
- regional
- retail + business focused
- heavily digital
That overlap is normal.
Common mistakes to avoid when comparing banks
- Mixing categories: “National,” “retail,” and “online” are not the same type of label.
- Assuming national banks are defined by geography: In the U.S., “national bank” refers to the OCC charter.
- Assuming all bank products are FDIC-insured: FDIC covers deposit accounts, not investment products.
- Thinking “commercial bank” means business-only: In common U.S. usage, commercial banks often serve both consumers and businesses.
Frequently asked questions (FAQ)
1) What is a commercial bank?
A commercial bank is a bank that accepts deposits and makes loans, while also offering common banking services like checking, savings, mortgages, and business banking.
2) Are retail banks and commercial banks the same thing?
Not exactly. “Commercial bank” is the broader category, while “retail banking” usually refers to the consumer-facing services offered by a commercial bank. Many commercial banks provide both retail and business banking.
3) What is the difference between a national bank and a state-chartered bank?
The main difference is the charter and primary regulators. National banks are chartered by the OCC. State-chartered banks are chartered under state law and may be supervised by state regulators plus the FDIC and/or Federal Reserve, depending on their status.
4) Are online banks real banks?
Yes — some are fully chartered banks that operate primarily online. “Online” describes the delivery model, not whether the bank is legitimate or regulated.
5) Is my money always FDIC-insured at a bank?
Only eligible deposit accounts at FDIC-insured banks are covered. Coverage is automatic, but it does not apply to products like stocks, bonds, mutual funds, or annuities.
6) How much does FDIC insurance cover?
The standard amount is $250,000 per depositor, per FDIC-insured bank, per ownership category. You may qualify for more coverage at one bank if funds are held in different ownership categories.
7) What type of commercial bank is best for small businesses?
It depends on your needs. Community and regional banks may offer more local relationship support, while larger banks may offer broader treasury tools, branch access, and specialized services. Many businesses compare fees, lending flexibility, and responsiveness before choosing.