Banks offer deposit accounts, lending, and payment services as their foundation
Most banks operate around three main services: holding your money in deposit accounts, lending you money when you need it, and moving money between accounts and people. These three services form the backbone of what a bank does, whether it is a large national chain or a smaller regional institution. Understanding what each one covers helps you know what to expect when you open an account, explore for a loan, or pay a bill.
The specific features and costs of each service vary widely between banks. Some charge monthly fees for deposit accounts; others waive them if you maintain a minimum balance. Loan terms depend on your credit history and what you are borrowing for. Payment services range from basic check-writing to mobile transfers and bill pay. Knowing the three categories helps you compare what different banks actually offer rather than getting lost in marketing language.
Key Takeaways
- Deposit accounts (checking and savings) are where banks hold your money and pay you interest on savings balances, while charging you fees if your account falls below certain thresholds.
- Lending services let you borrow money for mortgages, car loans, personal loans, and credit cards, with the bank earning money through interest charges on what you owe.
- Payment services move money between your accounts and other people's accounts through checks, transfers, bill pay, and debit cards.
- Banks make money from the difference between what they pay you in interest on deposits and what they charge you in interest on loans.
Deposit accounts: where banks hold and grow your money
A deposit account is a place to store money that the bank holds for you. The two most common types are checking accounts and savings accounts. A checking account is designed for frequent transactions—you can write checks, use a debit card, and set up automatic bill payments. A savings account is meant to hold money longer and typically pays you interest on your balance, though the rate is usually low.
When you deposit money into either account, the bank now holds that money and can lend it out to other customers. In exchange, the bank pays you interest on savings accounts (and sometimes on checking accounts, though rarely). The bank also charges you fees—monthly maintenance fees, overdraft fees if you spend more than you have, or fees for using another bank's ATM. These fees are how banks make money on deposit accounts when interest rates are very low.
The money you deposit is insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per account type per bank. This means if the bank fails, the government guarantees you get your money back up to that limit. This protection is one reason people use banks instead of keeping cash at home.
Lending: banks loaning money and charging interest
A loan is money the bank lends you with the understanding that you will pay it back over time, plus interest. The interest is the bank's profit on the loan. Common types include mortgages (for buying a home), auto loans (for buying a car), personal loans (for any purpose), and credit cards (a revolving line of credit you can borrow from repeatedly).
When you borrow, the bank looks at your credit history, income, and what you are borrowing for to decide whether to lend and at what interest rate. A higher interest rate means the bank sees you as riskier. A mortgage might carry an interest rate of 6 to 8 percent, while a credit card might be 18 to 25 percent. The difference reflects how much risk the bank thinks it is taking.
You repay loans through regular payments—monthly for most mortgages, auto loans, and personal loans. Credit cards let you pay as little as the interest each month, though you will pay far more in total interest if you do. The bank's profit comes from the interest you pay over the life of the loan.
Payment services: moving money on your behalf
Payment services are the tools banks provide to move money from your account to someone else's. These include checks, debit cards, wire transfers, ACH transfers (automated clearing house, used for bill pay and direct deposit), and mobile payment apps. Each method moves money at a different speed and costs the bank different amounts to process.
A check takes several business days to clear because it has to be physically transported and processed. A debit card transaction is nearly when ready. A wire transfer is fast but often costs you a fee ($15 to $30). An ACH transfer (like setting up automatic bill pay) is free or low-cost but takes one to three business days. A mobile payment app like Zelle or your bank's own app can move money in minutes.
Banks offer these services because they are essential to how people manage money, and they create opportunities to charge fees. Some banks charge for wire transfers, overdrafts triggered by debit card use, or stopping payment on a check. Others include these services free with your account. The cost and speed of payment services is a real difference between banks worth comparing.
How banks make money from these three services
Banks profit from deposit accounts through fees and by lending out the money you deposit at a higher interest rate than they pay you. If a bank pays you 0.01 percent interest on your savings account and lends that money out at 6 percent, the bank keeps the difference. They also profit from overdraft fees, monthly maintenance fees, and ATM fees.
Banks profit from lending through interest charges. If you borrow $200,000 for a mortgage at 7 percent over 30 years, you will pay roughly $280,000 total—the extra $80,000 is the bank's profit. Credit card companies profit from interest, late fees, and annual fees (on some cards).
Banks profit from payment services mainly through fees, though high-volume payment processing also creates data and relationship value. A wire transfer fee of $25 is pure profit. Overdraft fees (charged when a debit card transaction pushes your account negative) can be $30 to $35 per transaction and are a major source of bank revenue.
What these services do not include
Banks provide these three core services, but they do not include investment management, insurance, or tax information—though some large banks own subsidiaries that do. A bank will not tell you whether to buy a stock or how to structure your retirement savings. They will not sell you homeowners insurance or life insurance (though they may refer you to companies that do). They will not prepare your taxes or advise you on tax strategy.
Some banks offer investment accounts where you can buy stocks and mutual funds, but that is a separate service from banking itself. Some banks own insurance companies, but insurance is a different business. Understanding this boundary helps you know when you need to talk to a different kind of professional—a financial advisor, insurance agent, or tax preparer.
How to compare banks on these three services
When you are choosing a bank, look at what each one charges for deposits, what interest rates they offer on loans, and what fees they charge for payments. A bank with no monthly fee but high overdraft fees might cost you more than one with a small monthly fee but no overdraft charges. A bank offering 4.5 percent on savings is worth more than one offering 0.01 percent if you have a large balance.
Ask about the specific fees: monthly maintenance, overdraft, ATM out-of-network, wire transfer, stop payment, and account closure. Ask about minimum balances required to waive fees. Ask what interest rate you would may have access to for on a loan based on your credit. These concrete numbers matter far more than a bank's advertising.
You can also use online banking comparison tools, though read the fine print to see whether they are paid by banks to promote certain options. Your own research into a bank's fee schedule and current interest rates (which you can find on their website) is the most reliable approach.
Frequently Asked Questions
Do all banks offer the same three services?
Most traditional banks offer all three, but some specialize. Credit unions offer deposit and lending services but may have fewer payment options. Online banks often offer deposits and payments but limited lending. Investment banks focus on lending and payments for large businesses rather than individuals. The three services are standard for consumer banks, but the details vary.
Why do banks charge overdraft fees if I only go negative by a few dollars?
Overdraft fees are a payment service fee—the bank is charging you for the service of covering a transaction when you do not have the money. The fee is the same whether you overdraft by $5 or $500. You can opt out of overdraft coverage on debit cards at most banks, which means the transaction will be declined instead. Ask your bank how to do this if you want to avoid the fees.
Can I get a loan from a bank if I have bad credit?
It depends on the type of loan and how bad your credit is. Secured loans (where you put up collateral like a car or savings account) are easier to get with poor credit. Unsecured loans like personal loans are harder. Credit cards for people with poor credit exist but carry very high interest rates. Some banks will not lend to you at all; others specialize in higher-risk borrowers. You have to ask.
What happens to my money if a bank fails?
The FDIC insures deposit accounts up to $250,000 per account type per bank. If a bank fails, the FDIC pays you back. Loans you have with the bank are separate—you still owe the money, but the FDIC or a new bank taking over the loan will contact you about repayment. Your money in deposit accounts is protected; your debt obligations are not.
Why do banks pay almost no interest on checking accounts?
Checking accounts are designed for frequent transactions, not savings. The bank makes money on checking accounts through fees and by lending out the money you keep there, not through interest. Savings accounts pay slightly more interest because the bank expects you to keep money there longer. If you want meaningful interest, you need a high-yield savings account, money market account, or certificate of deposit (CD), which pay more but have restrictions on how often you can withdraw.