Home loan prepayment calculator: why prepaying in the first 5 years saves the most

Using a home loan prepayment calculator, borrowers can estimate how a lump-sum payment can reduce total interest - especially in the early years of a loan. Enter your outstanding balance, interest rate, remaining tenure, and prepayment amount to see your revised EMI.

A home loan repays interest before principal. In the first few years, most of your EMI goes towards interest rather than reducing the loan balance. A prepayment made during this period cuts the principal, and therefore the interest, across a larger stretch of remaining time. The savings are noticeably higher than a similar prepayment made in year 15 or year 20.

On a Rs. 40 lakh home loan at 8.50% p.a. over 20 years, for instance, the total interest paid over the full tenure is nearly Rs. 43.31 lakh. A prepayment of Rs. 5 lakh in year 3 may reduce total interest by a significantly higher amount than the same prepayment in year 12. A home loan prepayment calculator helps you quantify this difference and choose the right time to act.

Home loans use a method called reducing balance interest calculation. Each month, interest is charged on the outstanding principal, not the original loan amount. In the early years, your outstanding principal is at its highest, so the interest component of every EMI is also at its highest.

A standard 20-year loan on Rs. 40 lakh at 8.50% p.a. carries an EMI of roughly Rs. 34,713. In the first year, the majority of that EMI is interest. The principal portion grows slowly over time. This structure means a Rs. 3 lakh prepayment in year 2 reduces a large principal, removing interest across 18 remaining years. The same prepayment in year 17 reduces a smaller principal, with only 3 years left to generate savings.

Arun took a Rs. 40 lakh home loan at 8.50% p.a. for 20 years. His Rs. 40 lakh home loan EMI works out to Rs. 34,713 per month. In year 2, his company paid him a bonus of Rs. 5 lakh. He considered a fixed deposit or a prepayment. Because he is in year 2, the bulk of each EMI is still servicing interest. Using the home loan prepayment calculator, he found that prepaying Rs. 5 lakh at this stage could reduce his total interest outgo by approximately Rs. 4.79 lakh over the remaining tenure.

A home loan prepayment calculator takes your current loan details and a proposed lump-sum payment. It then shows you the revised EMI after that payment is applied. The inputs are straightforward, and the output is immediate.

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              "text": "Enter your outstanding loan amount - this is your current balance, not the original loan figure.",
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              "text": "Enter your current interest rate.",
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              "text": "Enter the prepayment amount you are considering.",
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Returning to Arun’s example from earlier: In year 2, Arun's outstanding balance is approximately Rs. 38.34 lakh, with 216 months remaining. He enters these figures into the Bajaj Finance Home Loan Prepayment Calculator and adds Rs. 5 lakh as the proposed prepayment. His outstanding principal drops to Rs. 33.34 lakh, and his revised EMI is Rs. 30,186. Now, Arun has two choices: keep the same tenure and pay a lower EMI, or keep the same EMI and close the loan earlier

This is the most practical decision once you've chosen to prepay. Both options save interest compared to not prepaying. But they work differently and suit different financial situations.

So, how does Arun choose? After his Rs. 5 lakh prepayment, Arun's revised outstanding balance is Rs. 33.34 lakh.

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              "text": " His EMI drops from Rs. 34,713 to roughly Rs. 30,186. Tenure remains 216 months. He frees up around Rs. 4,527 per month but pays more interest overall.",
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              "text": " His EMI stays at Rs. 34,713. His loan closes a little over 3 years earlier, and his total interest savings are substantially higher.",
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Arun has a stable income and no large expenses planned. Option B suits him better. A borrower with uneven cash flow or an anticipated large expense in the next year may prefer Option A for the monthly flexibility it provides.

Prepayment is not the right move in every situation. Consider holding the funds if any of the following apply:

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              "text": "Late stage of the loan:",
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              "text": " If you are in the final years of your tenure, most of the interest has already been paid; the principal savings from prepayment at this stage are limited.",
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              "text": "Emergency fund gap:",
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              "text": " Prepaying should not leave you with less than 4-6 months of living expenses in liquid savings.",
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              "text": " If an investment reliably returns more than your home loan interest rate after tax, it may generate more net worth than prepaying.",
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              "text": " If a significant outflow (a medical procedure, home renovation, or education fee) is likely within the next 12 months, hold the funds rather than committing them to a prepayment.",
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              "text": " Section 24(b) allows up to Rs. 2 lakh per year on interest, and Section 80C allows up to Rs. 1.5 lakh on principal - calculate your post-tax effective loan cost before deciding.",
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              "text": " Per RBI norms, individual floating-rate borrowers pay no prepayment or foreclosure charges; fixed-rate or business-purpose loans may carry a part-prepayment charge of 2% and a foreclosure charge of 4% on outstanding principal, with dual-rate loans assessed based on the loan's status on the date of prepayment - confirm your specific conditions before acting.",
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Confirming eligibility and organising documents before applying reduces delays after submission. Here is what Bajaj Finance checks and what you need to have ready.

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              "text": "Click the 'APPLY' button on the Bajaj Finance Home Loan page.",
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              "text": "Enter your full name, mobile number, and employment type.",
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              "text": "Select the type of loan you wish to apply for.",
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              "text": "Generate and submit your OTP to verify your phone number.",
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              "text": "Enter your monthly income, required loan amount, and confirm whether you have identified a property.",
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              "text": "Enter your date of birth, PAN, and other details as requested based on your occupation type.",
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              "text": "Submit your application and wait for a Bajaj Finance representative to contact you and guide you through the next steps.",
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Early prepayment can reduce total interest paid by a meaningful amount, because it reduces the principal when the remaining tenure is still long enough for the savings to compound. A home loan prepayment calculator helps you compare repayment choices before committing, so the decision is based on your actual figures rather than estimates. If you are planning a new home loan or reviewing an existing one, Bajaj Finance Home Loan is worth considering. It offers repayment tenures of up to 32 years*, loans of up to Rs. 15 crore*, and a home loan prepayment calculator to estimate your revised EMI before you decide.