Choosing a 15-year tenure for a ₹50 lakh loan pushes the EMI up to ₹49,237, but it is the cheapest way to own the home outright: total interest is just ₹38.63 L.
EMI on ₹50 Lakh at 8.5% for 15 years
₹49,237 / month
Total interest ₹38.63 L over the loan
What this loan size means for you
The trade-off is stark against longer tenures. The same ₹50 lakh over 20 years has a lower EMI of ₹43,391 but costs ₹54.14 L in interest; stretched to 30 years the EMI eases to ₹38,446 yet the interest balloons to ₹88.4 L. In other words, the 15-year route saves you roughly ₹49.78 L in interest versus the 30-year route. If your income comfortably covers the higher EMI, 15 years is almost always the better financial choice.
Worked example (8.5% p.a.)
₹50 L over 15 years
₹49,237 / mo
Total interest, 15 yrs
₹38,62,656
Same loan over 20 yrs
₹43,391 / mo
Same loan over 30 yrs
₹38,446 / mo
Interest, 30 yrs
₹88,40,443
How home loan EMI is calculated
Your EMI is fixed by the formula EMI = P × r × (1+r)n ÷ [(1+r)n − 1], where P is the loan principal, r is the monthly interest rate (annual rate ÷ 12) and n is the number of monthly instalments. Each EMI is split between interest and principal repayment: the early years are mostly interest, the later years mostly principal. A longer tenure lowers the EMI but raises the total interest you pay, because the principal is outstanding for longer.
Frequently Asked Questions
What income do I need for a ₹50 Lakh home loan?
As a rule of thumb lenders keep the EMI within about 40% of net monthly income, so a ₹49,237 EMI suggests take-home pay of roughly ₹1,23,092 a month. Existing loans reduce this headroom.
How much interest will I pay in total?
Over 15 years at 8.5% you repay ₹88,62,656 in all — the original ₹50 Lakh plus ₹38,62,656 of interest.
Is the interest rate fixed or floating?
Most Indian home loans are floating, linked to an external benchmark such as the RBI repo rate. The figures here assume a constant 8.5% for illustration; your EMI changes when the benchmark moves.
Can I reduce the total interest?
Yes — a shorter tenure, a larger down payment, or periodic part-prepayments all cut the total interest, because they reduce either the principal or the time it stays outstanding.