What is Commercial Banks?

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Grade Level:

Class 12

AI/ML, Physics, Biotechnology, FinTech, EVs, Space Technology, Climate Science, Blockchain, Medicine, Engineering, Law, Economics

Definition

What is it?

Commercial banks are financial institutions that accept deposits from the public and give loans for various purposes. They aim to earn profit by charging interest on loans and paying interest on deposits, acting as a middleman in the economy.

Simple Example

Quick Example

Imagine your local bank branch where your parents keep their savings. When you need money for a new bicycle, you might take a loan from that bank. This is exactly what a commercial bank does – it takes money from people who have extra (depositors) and gives it to people who need it (borrowers), like a helpful friend for everyone's money needs.

Worked Example

Step-by-Step

Let's say a bank receives deposits and gives out loans.

1. **Deposits Received:** A bank collects Rs. 10,00,000 in savings from various customers.
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2. **Statutory Reserve Requirements:** The Reserve Bank of India (RBI) mandates that a certain percentage of deposits must be kept aside. Let's assume the Cash Reserve Ratio (CRR) is 4% and Statutory Liquidity Ratio (SLR) is 18%. Total reserves = 4% + 18% = 22%.
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3. **Amount to be Kept as Reserve:** 22% of Rs. 10,00,000 = (22/100) * 10,00,000 = Rs. 2,20,000.
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4. **Amount Available for Loans:** Total Deposits - Reserves = Rs. 10,00,000 - Rs. 2,20,000 = Rs. 7,80,000.
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5. **Interest Earned on Loans:** The bank gives out Rs. 7,80,000 as loans at an interest rate of 10% per year. Interest earned = 10% of Rs. 7,80,000 = Rs. 78,000.
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6. **Interest Paid on Deposits:** The bank pays 4% interest on the Rs. 10,00,000 deposits. Interest paid = 4% of Rs. 10,00,000 = Rs. 40,000.
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7. **Bank's Profit (simplified):** Interest Earned - Interest Paid = Rs. 78,000 - Rs. 40,000 = Rs. 38,000.

**Answer:** In this simplified example, the bank makes a profit of Rs. 38,000 from these transactions.

Why It Matters

Understanding commercial banks is key to grasping how economies work, from the daily transactions on UPI to large business investments. It's crucial for future FinTech innovators designing new payment systems, economists analyzing market trends, and even engineers managing project finances. Knowing this helps you understand personal finance and even how AI/ML models are used for fraud detection in banking.

Common Mistakes

MISTAKE: Thinking commercial banks only store money. | CORRECTION: Commercial banks do much more than just store money; they also lend it, facilitate payments, and provide various other financial services.

MISTAKE: Confusing commercial banks with central banks (like RBI). | CORRECTION: Commercial banks are for the public and businesses, while a central bank is the 'banker's bank' and controls the country's money supply and banking system.

MISTAKE: Believing banks only make money from loans. | CORRECTION: While loans are a major source, banks also earn from fees on services (like ATM usage, locker rentals), investments, and foreign exchange transactions.

Practice Questions

Try It Yourself

QUESTION: Name two main functions of a commercial bank. | ANSWER: Accepting deposits and granting loans.

QUESTION: If a commercial bank receives deposits of Rs. 5,00,000 and the RBI mandates a reserve of 20%, how much money can the bank potentially lend out? | ANSWER: Rs. 5,00,000 - (20% of Rs. 5,00,000) = Rs. 5,00,000 - Rs. 1,00,000 = Rs. 4,00,000.

QUESTION: Why is it important for commercial banks to pay interest on deposits and charge interest on loans? Explain the relationship between these two interest rates for the bank to be profitable. | ANSWER: Banks pay interest on deposits to attract savings from the public. They charge interest on loans to earn income and cover their costs, including the interest paid to depositors. For a bank to be profitable, the interest rate charged on loans must generally be higher than the interest rate paid on deposits, creating a 'spread' that covers operating expenses and generates profit.

MCQ

Quick Quiz

Which of the following is NOT a primary function of commercial banks?

Accepting deposits

Granting loans

Issuing currency notes

Facilitating payments

The Correct Answer Is:

Issuing currency notes is a function of the central bank (like RBI in India), not commercial banks. Commercial banks primarily accept deposits, grant loans, and facilitate various payment methods.

Real World Connection

In the Real World

Every time you use UPI to pay for chai at a local shop or your parents use mobile banking apps like Google Pay or PhonePe to transfer money, you are directly interacting with services provided by commercial banks. These banks are behind your debit cards, credit cards, and even the ATM you visit to withdraw cash, making daily financial transactions smooth and easy across India.

Key Vocabulary

Key Terms

DEPOSIT: Money placed in a bank for safekeeping | LOAN: Money borrowed from a bank with an agreement to pay it back with interest | INTEREST: The charge for borrowing money, or the income earned from lending money | PROFIT: The financial gain (revenue minus expenses) a bank makes | CENTRAL BANK: The main bank of a country (e.g., RBI in India) that controls money supply and regulates other banks.

What's Next

What to Learn Next

Now that you know what commercial banks are, you can explore 'How Banks Create Money (Credit Creation)'. This will show you the amazing way banks multiply the money in the economy, building directly on their core functions of accepting deposits and giving loans.