The number nobody renegotiates
A floating-rate home loan is two components: an external benchmark, and a spread the lender adds on top.
The benchmark moves with policy and resets on a set frequency. The spread is fixed at origination and generally stays fixed for the life of the loan.
Which produces a situation most borrowers never notice. Two people with the same benchmark and different spreads pay different rates forever, and a loan taken years ago at a spread that reflected the lending environment of the time can sit well above what the same lender is offering new customers today.
Your rate can be uncompetitive while the benchmark is doing nothing wrong. The check is simple: compare your current rate against what your own lender advertises for a new borrower with your profile. A meaningful gap usually means the spread, not the benchmark.
| Benchmark | Spread | |
|---|---|---|
| Set by | Policy and market | Your lender, at origination |
| Changes | On a mandated reset frequency | Generally never, for the life of the loan |
| Same for new borrowers? | Yes | No — theirs may be lower |
| Can you change it? | No | Yes — conversion for a fee, or refinance |
Two remedies exist. Lenders commonly offer a conversion to a lower spread for a fee, which is the cheaper route. Or refinance to another lender, which costs more in process and paperwork. Either is worth doing arithmetic on — over a long remaining tenure, a small spread reduction is a large sum.
Tenure dwarfs the rate
The rate gets negotiated. The tenure gets whatever makes the EMI comfortable.
That is backwards, because tenure has a much larger effect on total cost. A longer term reduces the monthly payment and increases the number of months interest is charged for — and as the amortisation arithmetic shows, the early years are almost entirely interest, so adding years adds them at the expensive end.
The comfort a longer tenure buys is real, and it is being purchased rather than given. The honest way to see the price is to ask the lender for the total amount repayable over the full tenure at each option — one number, in rupees. The difference between a twenty-year and a twenty-five-year option, stated that way, tends to end the discussion.
The same logic governs what to do after a prepayment or a rate cut: keep the EMI and shorten the tenure rather than keeping the tenure and lowering the EMI. The first removes months of interest; the second keeps every one of them.
The down payment does two jobs
Lenders finance up to a regulated share of the property value, so you fund the rest — plus stamp duty and registration, which are typically not financed and which are the costs first-time buyers most often underestimate.
A larger down payment reduces the loan, which reduces total interest by more than the amount itself over a long tenure. It can also improve the rate offered, since a lower loan-to-value is lower risk to the lender.
The counterweight is liquidity. Emptying an emergency fund into a down payment converts accessible money into an asset you cannot spend, at the exact moment your fixed monthly obligations have increased. That is the wrong trade — the fund should survive the purchase intact, and if it cannot, the purchase is larger than the household can carry.
Under-construction property has its own trap
Where the property is not yet complete, the loan is disbursed in stages as construction progresses.
During that period lenders typically offer pre-EMI — paying only the interest on the amount disbursed so far. It is attractive because the payment is small, and it has a consequence worth understanding: pre-EMI repays no principal at all. Two or three years of pre-EMI means two or three years of payments that reduced the loan by nothing, and the full tenure starts afterwards.
Paying full EMI from the outset where affordable is materially cheaper. And the risk that belongs in the same paragraph: with an under-construction property you are servicing a loan on something that does not yet exist, so a delay extends the period during which you are paying both this and your current rent.
Before signing
- The spread, stated separately from the benchmark. Ask for both numbers, not the combined rate.
- The reset frequency — how quickly benchmark changes reach you, in both directions.
- Total repayable over the full tenure, in rupees, at each tenure option.
- Processing, legal, valuation and documentation charges, and whether any are refundable if the loan does not proceed.
- Whether any insurance is bundled into the disbursal, and whether it is genuinely required or merely presented that way. Bundled cover financed by the loan is being paid for with interest on top.
- Prepayment terms. The RBI has restricted charges on floating-rate loans to individuals — verify the current position rather than accepting a statement.
- What happens on a rate rise — whether the tenure extends or the EMI rises, and what the cap is.
Managing it afterwards
A home loan is a twenty-year relationship, and almost nobody reviews it after year one.
- Check the outstanding tenure after every rate change, not just the EMI. Lenders usually adjust the tenure silently, so a rate rise can add years without anything appearing to change.
- Compare your rate against new-customer rates annually. This is the spread check, and it is the single highest-value fifteen minutes available to a borrower.
- Direct windfalls at the loan early. The timing asymmetry is severe — the same prepayment is worth several times more in year three than in year fifteen.
- Keep the loan account statement. Errors in interest computation are uncommon and not unknown, and they are only findable if someone looks.
Prepay or invest?
A home loan is usually the cheapest borrowing available, which makes this the one debt where the question is genuinely open — unlike a card balance, where it is not.
The comparison is the loan rate against what the money would otherwise earn, with one asymmetry that decides most cases: the loan's saving is certain and the investment's return is not. A rate in the high single digits competes with a plausible long-run equity return, so the arithmetic is close — and closeness means the non-arithmetic factors matter.
Those factors point in different directions. Clearing a loan removes a fixed obligation and buys resilience, which is worth something the spreadsheet does not show. Prepaying also converts liquid money into home equity you cannot easily access. Many households sensibly do both — a partial prepayment each year while continuing to invest.
Running it on your own numbers
Every figure here comes from three inputs: amount, rate, tenure. Your lender must provide the full amortisation schedule, and it is worth having.
For the prepay-or-invest question, FNOTrader's Mutual Funds app runs contribution schedules against real NAV history — around 34 million NAV rows — reporting XIRR and rolling returns across every start date. Compare the worst window against the loan's certain rate, not the median one — that is the comparison the asymmetry demands.
FNOTrader is not a lender or a SEBI-registered investment adviser.
Common questions
What is the spread on a home loan?
The margin your lender adds on top of the external benchmark. The benchmark moves with policy and resets periodically, but the spread is fixed at origination and generally stays fixed for the life of the loan — so an older loan can sit above what the same lender offers new borrowers.
How do I know if my home loan rate is uncompetitive?
Compare your current rate against what your own lender advertises for a new borrower with your profile. A meaningful gap usually reflects the spread rather than the benchmark, and lenders commonly offer conversion to a lower spread for a fee.
Is the interest rate or the tenure more important?
Tenure, by some margin, though it is the one people accept without discussion. A longer term reduces the monthly payment and adds months of interest at the expensive end of the schedule. Ask for the total repayable in rupees at each tenure option.
Should I reduce my EMI or tenure when rates fall?
Keep the EMI and let the tenure shorten. That removes months of interest entirely, whereas keeping the tenure and lowering the EMI retains every one of those months.
What is pre-EMI and should I choose it?
On an under-construction property, pre-EMI means paying only interest on the amount disbursed so far. It repays no principal at all, so two or three years of it reduces the loan by nothing and the full tenure begins afterwards. Paying full EMI from the outset is materially cheaper where affordable.
Should I make a larger down payment?
It reduces total interest by more than the amount itself over a long tenure and can improve the rate offered. But it should not come from your emergency fund — converting accessible money into an asset you cannot spend, just as fixed obligations rise, is the wrong trade.
What costs are not covered by a home loan?
Stamp duty and registration are typically not financed, and they are the costs first-time buyers most often underestimate. Processing, legal and valuation charges are additional, and any bundled insurance financed by the loan is paid for with interest on top.
Should I prepay my home loan or invest instead?
It is genuinely close, because a home loan is usually the cheapest borrowing available. The deciding asymmetry is that the loan's saving is certain while an investment return is not — and clearing the loan also removes a fixed obligation, which buys resilience the arithmetic does not show.
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