How do banks make money?

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Banks play a crucial role in our modern economic system, serving as financial institutes or intermediaries that facilitate the flow of money. Banks also offer financial services like credit, investments, tax filing, etc.

Most of us interact with banks regularly, and the question is, how do banks make money?

So in this blog post, we are going to understand the bank’s mechanism, and how the banking system earns money and makes salaries to its employees while offering financial services to us at very low or free of charge.

Before we begin the list of their work, let’s understand what is main job of a bank is!

Banks collect money from people in the form of cash, deposits, investments, etc., and give it to people who need money in the form of credits and loans. Banks earn around 8-16% from loans, then offer and return 2-6% to the people who put money in the bank, while keeping the difference with itself as benefits and costs.


That’s how banks earn traditionally, but things have changed today. Banks are offering many more services and diversified their way of making money. Let’s check what are they.

1. Interest income – the bedrock of banking.

The primary way banks generate revenue is through interest income (as we read the short story above).

When individuals and businesses borrow money from a bank, they agree to pay interest on the loan amount. This interest serves as compensation for the risk taken by the bank and the opportunity cost of lending money instead of using it for other investments. On the flip side, when individuals deposit money in savings or checking accounts, banks pay them interest, albeit at a lower rate. The difference between the interest earned on loans and the interest paid on deposits forms the cornerstone of a bank’s income.

Note: The rates on deposits and credits may vary from country to country.

2. Loans and credit facilities.

One of the main avenues for banks to earn interest income is by extending loans to borrowers. Whether it’s a home mortgage, an auto loan, or a business loan, banks charge interest on the amount lent.

This interest is typically determined by factors such as the prevailing interest rates in the market, the borrower’s creditworthiness, and the type of loan. Additionally, credit cards and other lines of credit contribute to interest income when users carry balances from month to month.

Banks earn handsome returns from credit card if payment is missed, as bank charge very heavy fee for it.

3. Investment activities.

Banks are adept at putting their funds to work through various investment activities. They may invest in a range of financial instruments, including government and corporate bonds, stocks, and other securities. Profits from these investments contribute to a bank’s overall revenue. However, it’s important to note that investment activities also carry risks, and market fluctuations can impact a bank’s financial health.

4. Fee-based services.

Beyond interest income, banks generate revenue through some fee-based services.

Customers are often charged fees for various services, such as account maintenance, wire transfers, ATM usage, and overdraft protection. Additionally, banks earn fees from providing financial advisory services, taxation, wealth management, and facilitating mergers and acquisitions. Today, banks offer other service beyond just banking.

5. Foreign exchange and trade finance.

Banks are key players in the global economy, engaging in foreign exchange services and trade finance.

They facilitate international trade by providing letters of credit, export financing, and currency exchange services. The fees and commissions earned from these activities contribute to a bank’s revenue stream.

6. Reserves and central banking.

Banks are required to hold a certain amount of reserves, which are deposits held at the central bank.

While these reserves serve as a safety net, central banks often pay interest on these deposits.

The interest earned on reserves can add to a bank’s income.


In conclusion, the multifaceted nature of banking operations enables financial institutions to generate revenue through various channels. From the fundamental interest income derived from loans and deposits to fee-based services and international financial activities, banks navigate a complex landscape to remain profitable.

Understanding these mechanisms not only sheds light on the financial intricacies of banks but also provides insight into the broader economic ecosystem they sustain. As we continue to evolve in a digital era, the landscape of banking and its revenue streams may witness further transformations, yet the core principles of banking profitability are likely to remain rooted in these fundamental concepts.

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