
Interest rate changes can significantly affect the cost of borrowing. When a lender increases the interest rate on a loan by 1%, the borrower may see a rise in the Equated Monthly Instalment (EMI) or an increase in the total interest paid over the loan tenure.
Since many loans are linked to floating interest rates, such changes can happen during the repayment period. Understanding how even a small rate hike affects repayments can help borrowers plan their finances better. An EMI calculator is often used to estimate how such changes influence monthly payments and the overall loan cost.
When the interest rate on a loan increases, the cost of borrowing rises because interest is calculated on the outstanding principal amount. In many cases, lenders adjust the EMI to reflect the higher interest rate. In other cases, the EMI may remain the same while the loan tenure is extended. Either way, the borrower ends up paying more interest over the life of the loan. A small increase such as 1% may appear minor, but over long loan tenures it can significantly increase the total repayment amount.
Consider a borrower who takes a loan of ₹40 lakh at an interest rate of 8% for a period of 20 years. In this case, the monthly EMI would be approximately ₹33,458. Over the full tenure, the borrower repays the principal amount of ₹40 lakh along with total interest of around ₹40,29,920, making the total payable amount approximately ₹80,29,920.
If the interest rate rises by 1% to 9%, the monthly EMI increases to about ₹35,989. Due to this change, the total interest paid increases to roughly ₹46,37,360, and the total repayment becomes approximately ₹86,37,360. This means the borrower ends up paying more than ₹6 lakh extra in interest because of the 1% rate increase.
In another scenario, suppose a borrower takes a loan of ₹60 lakh at an interest rate of 8.5% for a tenure of 25 years. The EMI in this situation would be about ₹48,426 per month. Over the loan tenure, the borrower pays the principal of ₹60 lakh and total interest of around ₹85,27,800, taking the total payable amount to approximately ₹1,45,27,800.
If the interest rate increases to 9.5%, the EMI rises to nearly ₹52,422 per month. With the higher interest rate, the total interest payable increases to about ₹97,26,600 and the total repayment amount reaches around ₹1,57,26,600. This means the borrower pays close to ₹12 lakh more in interest due to the 1% increase in the interest rate.
Borrowers often use an EMI calculator to compare such scenarios and understand how different interest rates can affect monthly payments and overall loan cost.
Also Read: EMI Calculator: How Much EMI Will You Pay on a ₹50 Lakh Loan?
Even a 1% increase in loan interest rates can have a noticeable impact on monthly EMIs and the total interest paid over time. The effect becomes more significant for large loan amounts and longer tenures. By using an EMI calculator and reviewing repayment strategies regularly, borrowers can better prepare for interest rate fluctuations and manage their loan commitments more effectively.
Disclaimer: This blog has been written exclusively for educational purposes. The securities mentioned are only examples and not recommendations. This does not constitute a private recommendation/investment advice. It does not aim to influence any individual or entity to make investment decisions. Recipients should conduct their own research and assessments to form an independent opinion about investment decisions.
Published on: Mar 15, 2026, 8:00 AM IST

Nikitha Devi
Nikitha is a content creator with 7+ years of experience in the financial domain. Specialising in personal finance, investments, and market insights, Nikitha simplifies complex financial topics, making them accessible to readers.
Know MoreWe're Live on WhatsApp! Join our channel for market insights & updates
