How much down payment should you make?
Why a bigger down payment is often a better guaranteed return than it looks.
Most advice around a home loan down payment stops at the lender’s minimum — pay whatever keeps the loan-to-value ratio within limits, and put the rest of your savings elsewhere. But your down payment is one of the few genuinely controllable levers in the entire transaction, and pushing it higher than the minimum has a real, quantifiable effect on what the loan ends up costing you.
What raising your down payment actually buys you
Using the Home Loan Calculator’s own defaults — a ₹60,00,000 property at 8.5% for 20 years — a 20% down payment (₹12,00,000) leaves a ₹48,00,000 loan, an EMI of ₹41,655.52, and ₹51,97,323.65 in total interest over the tenure. Raising the down payment to 30%(₹18,00,000 — ₹6,00,000 more) shrinks the loan to ₹42,00,000, cutting the EMI to ₹36,448.58 and total interest to ₹45,47,658.19. That extra ₹6,00,000 down payment saves ₹6,49,665.46in interest — more than the extra amount you put down in the first place.
Work out your EMI, loan amount, and total interest for a home purchase.
Why it’s a guaranteed return, not a bet
Every extra rupee you put down is a rupee that never gets borrowed, and a rupee that’s never borrowed never accrues interest at your loan’s rate, for the entire remaining tenure. That makes a larger down payment mathematically equivalent to an investment guaranteed to return your loan’s interest rate — 8.5% in the example above — compounding for as long as the loan would otherwise have run. Unlike an actual market investment, there’s no volatility and no chance of underperforming: the saving is locked in the moment you sign the loan at the lower amount.
The earlier in the tenure you reduce the principal, the more interest it saves, since EMIs are front-loaded toward interest. A bigger down payment at the start beats an equivalent prepayment made a few years in, purely because it avoids interest from month one instead of cutting it off partway through.
When investing the difference instead makes more sense
The comparison that actually matters is your loan’s interest rate against what you realistically expect to earn by investing that money instead. If your home loan rate is 8.5% and you’d otherwise park the extra ₹6,00,000 in a fixed deposit earning less than that, the guaranteed “return” from a bigger down payment wins outright. If you’d invest it in equity with a long horizon and a realistic expectation of outpacing your loan rate over 20 years, the higher expected return can outweigh the certainty — but that comparison only holds if you’re honest about the risk: a guaranteed 8.5% is a very different proposition from an uncertain double-digit return that could just as easily fall short.
All figures are indicative and for educational purposes only — not financial advice.
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