Home Loan Basics: How It Works and 6 Ways to Pay Less Interest
A home loan can cost you more in interest than the loan itself. Understand EMI, floating rates and the latest repo rate move — and learn simple prepayment tricks that can save lakhs.
Buying a house is a dream for most Indian families — and for most of us, that dream comes with a 20-year home loan. In my years in banking, I noticed something: people spend weeks choosing tiles and paint colours, but only a few minutes understanding the loan that will cost them far more.
Let’s fix that. Here are the basics, and simple ways to pay less interest. Rates and rules are as of October 2026.
🏠 How a Home Loan Works
- You repay through a fixed monthly EMI. In the early years, most of the EMI goes towards interest; only a small part reduces the principal.
- Banks usually lend a percentage of the property value, so you need to pay a down payment yourself, plus registration and stamp duty.
- How much you can borrow depends on your income, existing EMIs, age and credit score. Check with my Loan Eligibility Calculator.
Here’s an eye-opener: a ₹40 lakh loan for 20 years at 8.5% has an EMI of about ₹34,700. Over 20 years, you pay roughly ₹43 lakh in interest — more than the loan itself. Try your numbers on my Home Loan EMI Calculator.
📉 Floating Rates and the Repo Rate
Most home loans today are floating-rate loans linked to an external benchmark, usually the RBI repo rate (EBLR loans). When the repo rate changes, your rate changes too, and banks must reset it at least once every three months.
On 7 October 2026, RBI raised the repo rate by 0.25% to 5.50%, after a period of cuts, and changed its stance to “calibrated tightening”. If your loan is repo-linked, expect your rate to rise slightly at the next reset. When rates rise, banks often increase the tenure instead of the EMI — so check your loan statement, not just your EMI.
💡 6 Ways to Pay Less Interest
1. Prepay whenever you can
Prepayments go straight to principal. For individual borrowers, RBI does not allow banks to charge prepayment or foreclosure penalties on floating-rate loans, so use bonuses and windfalls wisely. On the ₹40 lakh example, prepaying just ₹1 lakh every year can finish the loan in about 13 years and save roughly ₹17 lakh in interest. See it for yourself on my Loan Prepayment Calculator.
2. Pay one extra EMI a year
Can’t manage a big amount? One extra EMI every year cuts the same loan to under 17 years and saves around ₹8 lakh.
3. Increase your EMI with your salary
Raise your EMI by about 5% every year as your income grows. On the same loan, this alone can close it in roughly 12 years.
4. Choose a shorter tenure if you can afford it
A longer tenure means a smaller EMI but much more interest. Pick the shortest tenure that still leaves room for savings and emergencies.
5. Keep your credit score high
A strong score helps you get a better rate. Read my credit score guide for simple habits.
6. Review your rate every year
Compare your rate with what your bank offers new customers. If the gap is big, ask your bank to lower it (a small conversion fee may apply), or consider a balance transfer after checking all charges.
“The best home loan is the one you finish early.”
⚖️ Prepay or Invest?
This is the classic debate. If your loan rate is high and you have no other debt, prepaying gives a guaranteed, risk-free “return”. If you are young with a long horizon, a balance works best: keep investing through SIPs and prepay a fixed amount every year. And never prepay using your emergency fund.
About tax: the ₹2 lakh deduction on interest for a self-occupied house is available only in the old tax regime. Don’t keep a loan running just for the tax benefit — the interest you pay is usually more than the tax you save.
✅ The Takeaway
Understand your loan, track your rate, and prepay a little every year. Small, regular steps can cut years off your loan and save lakhs — money that can go towards your children’s education or your own retirement. Your house should become truly yours as early as possible.
Figures are illustrative and rules are as of October 2026. This is general information, not financial advice — please check with your lender before acting.
Software engineer by skill, storyteller by soul. I write about life, health, money and technology from my own experience — and build free tools you can use every day.
