Rajesh Had 18 Years Left on His ₹42 Lakh Home Loan. One Decision Closed It in 10.

How to Prepay a ₹42 Lakh Home Loan Early

Case Study: Reducing an 18-Year Tenure to 10 Years

Rajesh, 54, had 18 years left on a ₹42 Lakh home loan at 9%. Increasing his EMI by ₹10,000/month from year 2 closed the loan in 10 years, saving ₹16.27 Lakhs in interest for a net gain of ₹4.27 Lakh.

ABHYUDAYA VIKRAM SINGH

June 2026 · DhanSutra.co.in · Home Loans
Last reviewed: July 2026

9 MIN READ

Client name used with permission. All figures based on actual loan details and amortisation calculation. Not financial advice.

The Saturday Morning That Changed Everything

Rajesh walked in with a printout of his home loan statement. Folded neatly. Edges a little worn: like he'd looked at it before and put it away without doing anything about it.

He sat down and said: "Bhai, loan toh chal raha hai theek se. Bas ek baar dekhna tha."

54 years old. ₹90,000 salary. ₹40,000 EMI going out every month without fail for years. He was proud of that: and he should be. Most people aren't that disciplined.

I asked him just one question. "Rajesh bhai, retire kab karna hai aapko?"

He said 65.

I pointed at his loan statement. 18 years remaining. He did the math himself. 54 plus 18 is 72.

He went quiet.

Not uncomfortable quiet. Thinking quiet. The kind where something just landed properly for the first time.

"Matlab main retire hone ke 7 saal baad tak EMI bharunga?"

Yes. That's exactly what the plan was. Every month after retirement (from whatever pension, savings, or corpus he had built) ₹40,000 would leave his account and go to the bank. For seven years.

I showed him one more number. The total interest he'd pay over those 18 years, at 9%, on a ₹42 Lakh principal? ₹44.6 Lakhs.

I've shown that same number to a lot of people over the years, and it still gets a reaction every single time. There is something about seeing the interest total in one lump figure, next to the loan amount, that a monthly EMI never quite communicates on its own.

This is the part nobody tells you when you're signing the loan documents. The bank shows you the EMI. The EMI looks manageable. Nobody shows you the total interest outflow: because if they did, you'd ask a lot more questions.

In the first few years of a home loan, about 70-80% of your EMI is interest. The principal barely moves. You feel like you're paying, but the outstanding amount hardly changes. It's only in the later years that the balance starts falling meaningfully.

Rajesh stared at the numbers for a bit. Then he said: "Toh phir kya karna chahiye?"

I told him the answer was simpler than he thought.

The Amortisation: What the Numbers Actually Show

Comparing old plan vs new plan year by year

But Wait: Should He Invest That ₹10,000 Instead?

I knew this question was coming. It always does.

"Yeh ₹10,000 SIP mein daal dun toh? Market se zyada return milega na?"

On paper, yes. A decent equity SIP can return 12-13% over the long run. The home loan costs 9%. So the SIP wins on paper.

But here's what paper doesn't show you.

Rajesh is 54. He has roughly 10-11 years to retirement. The stock market needs at least 7-10 years to smooth out its bad years. A market crash in year 8 or 9 could hit him right when he needs the money most. That 12% CAGR on a calculator doesn't come with a guarantee. The 9% saving on loan prepayment does.

There's also a second thing nobody talks about. Every extra rupee he puts toward the loan today saves him ₹1.8 to ₹2.2 in total interest over the remaining tenure. That's a guaranteed, tax-free return. No brokerage. No market risk. No tax on gains.

I'm not saying SIP is bad. I told Rajesh (if your EPF is running, your term insurance is sorted, and you have 6 months of expenses sitting in a liquid fund) then split it. ₹5,000 toward loan, ₹5,000 into SIP. Both work. Both compound.

But if you're 54 with no retirement corpus and a loan that runs to 72: clear the loan first. Sleep comes before returns.

What Happened After Rajesh Decided

He went to his bank the next Monday. One branch visit. He carried his loan account number and asked for an EMI revision to ₹50,000. They gave him a new NACH mandate form. He filled it, signed it, submitted it.

That was it. The whole thing took about 45 minutes including travel.

From the following month, ₹50,000 went out automatically. He didn't have to think about it again.

Three months later he messaged me. Just one line.

"Yaar, pehli baar lag raha hai ki loan khatam hoga mere retire hone se pehle."

That message is why I write these articles.

Honestly, messages like that are the whole point for me. Not the interest saved, though ₹16.27 Lakh is a real number and I don't want to undersell it. It's that one line about finally believing the loan would end before retirement. That's the actual outcome I'm chasing with every client.

The numbers saved him ₹16.27 Lakh. But what really changed was this: for the first time in years, he could think about retirement without a ₹40,000 shadow hanging over it. Every decision about where to spend, what to save, where to invest: all of that becomes cleaner when you know the loan will be gone before you stop working.

If Your Loan Is Also Running Too Long: Here's What to Do

You don't need a financial advisor to do what Rajesh did. You need a Saturday morning, a calculator, and one branch visit. Here's the exact sequence.

The whole process (calculation, bank visit, mandate revision) takes one working day. The saving lasts a decade.

Here is what I keep coming back to with Rajesh's case: he didn't refinance, didn't switch banks, didn't do anything clever. He asked one question at the bank counter and signed one form. The ₹16.27 Lakh saving came from a single EMI increase, sustained for ten years without interruption. That combination, small decision plus real consistency, is the actual formula. It just doesn't sound impressive enough for most people to try it.

My honest take: if you're over 45 with a home loan still running past your planned retirement age, stop treating that gap as a background worry. Do the age-plus-tenure math Rajesh did, out loud, on paper. It takes two minutes and it is usually the thing that finally gets people to act.

Abhyudaya Vikram Singh

Writes about personal finance at DhanSutra.co.in, built on real client case studies. Works with salaried individuals and dual-income households on practical, behaviour-first financial planning.

Want to explore other scenarios? Try the full Home Loan EMI and Prepayment vs SIP Calculators, along with seven other free financial planning tools.