Interest Rate

An Interest Rate represents the cost of using money.

For a borrower, it is the price paid for borrowing funds.

For a saver or investor, it is the return earned for providing funds.

Interest rates are commonly expressed as an annual percentage.

For example, if a person borrows ₹1 lakh at an interest rate of 8% per year, the simple annual interest would be:

₹1,00,000 × 8% = ₹8,000

Interest rates apply to many financial products, including:

• Home loans
• Personal loans
• Education loans
• Credit cards
• Fixed deposits
• Savings accounts
• Bonds
• Other lending and investment products

Interest rates can be:

• Fixed – the rate remains unchanged for a specified period
• Floating or variable – the rate can change over time based on a benchmark or market conditions

The level of an interest rate can depend on factors such as:

• Inflation
• Central bank policy
• Credit risk
• Loan duration
• Market demand for funds
• Economic growth
• Borrower profile

Interest rates are also important at the economy-wide level. Central banks use policy interest rates to influence borrowing, spending, inflation, and economic activity.

A rise in interest rates generally makes borrowing more expensive and may encourage saving, while lower rates can make borrowing cheaper and may support spending and investment.

Effect of a Higher Loan Interest Rate

Ravi takes a loan of ₹5 lakh.

Suppose the loan carries an annual interest rate of 9%.

The simple annual interest would be:

₹5,00,000 × 9% = ₹45,000

If the interest rate later rises to 11% on a floating-rate loan, the interest cost would increase.

At 11%, the simple annual interest would be:

₹5,00,000 × 11% = ₹55,000

This means Ravi’s borrowing cost increases by ₹10,000 per year, before considering repayment structure and reducing loan balance.

This shows why changes in Interest Rates can directly affect loan costs, household budgets, and financial decisions.