How the EMI is calculated
An EMI is one fixed monthly payment made of two parts: interest on the balance you still owe, plus a slice of the principal. Early on, most of it is interest. As the balance falls, more of every payment goes to principal. This calculator uses the same reducing-balance formula banks do.
EMI = P × R × (1+R)^N ÷ [(1+R)^N − 1]
P is the amount borrowed, N the tenure in months, and R the monthly interest rate — the annual rate divided by 12 and by 100. At 8.5% a year, R works out to 0.00708.
₹40,00,000 at 8.5% over 10 years gives an EMI of about ₹49,594. Stretch the same loan to 15 years and the EMI drops to roughly ₹39,390 — about ₹10,000 easier every month, but close to ₹11 lakh more interest over the life of the loan. That trade-off is what the plans below exist to manage.
The idea: take the long sanction, close it short
If you can afford the 10-year EMI, the bank will just as happily write you a 15-year loan. Take the longer one — then do not spend the difference. Park it in a recurring deposit and use that money to prepay the principal once a year. What you owe the bank each month stays small, but the balance still falls almost as fast.
- Pay fast. The full 10-year EMI and no RD. Fastest close, least interest. The risk: if your income dips the EMI does not, and a missed instalment is a default.
- Lower EMI, yearly prepay. A 15-year sanction. The monthly difference goes into an RD, and each year up to ₹1 lakh of it prepays the principal. Skip a month and nothing breaks — you only postpone the early close.
- Take it easy. The longest sanction and the lightest mandatory EMI. Same RD habit, except the yearly prepayment empties the entire RD into the loan, so the close date often still lands near your target — with cash to spare.
What the comfort costs
A home loan charges far more than an RD pays, so the yearly prepayment is what does the work here — not the interest the RD earns. Think of the RD as a brake you are allowed to release: optional, interruptible and always visible.
Be clear about the price of that comfort. On the ₹40 lakh example, both RD plans finish within about a year of the 10-year target, but they cost roughly ₹1–1.5 lakh more once you count every rupee paid and subtract the RD you still hold. What you buy is a mandatory EMI ₹10,000–15,000 lower and a payment you are allowed to skip. Every card shows this as out of pocket, all-in, so you can weigh the trade instead of guessing at it.
Reading the amortization schedule
The month-by-month table uses the same reducing-balance layout your bank does: month, beginning balance, EMI, principal, interest and outstanding balance. Switch plans with the tabs, step through a year at a time, or load every month at once. The Total row shows what a year cost you, split between principal and interest.
In year one almost the whole EMI is interest; in the final year almost none of it is. That one fact explains why a prepayment made early is worth several made late. On the longer sanctions a Prepayment column appears in month 12 of each year, when the RD is emptied into the principal.
Floating-rate home loans in India generally carry no prepayment charge for individual borrowers. Fixed-rate loans often do, and RD rates and lock-in periods vary by bank. Check both before you commit to a plan.