Same EMI or same tenure after a balance transfer?

A balance transfer produces a lower rate. What happens to the money that lower rate frees up is a second decision, and it is worth more than the first one in rupee terms. There are two clean paths and one that quietly costs money.

The home loan balance transfer calculator shows all three side by side. This page explains why they diverge so sharply.

The two paths

Same tenure, lower EMI. The new loan runs for the same number of months as the old one had left, so the rate cut shows up as a smaller monthly instalment. The relief is immediate and visible.

Same EMI, shorter tenure. The instalment is held at the old figure, so the extra money goes into principal every month and the loan finishes early. Nothing changes in the monthly budget; the loan simply ends sooner.

Both start from the same principal, the same new rate and the same one-off costs. The difference is entirely in what happens to the monthly relief.

The ₹40 lakh example, both ways

Outstanding ₹40,00,000 at 9.15% floating, 216 months left, moving to 7.90%. Costs of ₹28,918: a 0.35% processing fee capped at ₹10,000 plus ₹1,800 GST, MOD stamp duty of about ₹12,000, and ₹5,118 of legal, valuation and CERSAI charges. Nothing to the old lender, because a floating-rate home loan to an individual carries no pre-payment charge.

The rate cut is identical. The costs are identical. The break-even is identical, because the costs are recovered at the same speed either way. And the same-EMI path is worth roughly double.

The reason is compounding in reverse. On the same-tenure path, ₹3,076 a month leaves the loan and goes into the household. On the same-EMI path, that same ₹3,076 goes into principal, which stops accruing 7.90% for the remaining 182 months. Two years and ten months of instalments, about ₹12.9 lakh of gross payments, never happen at all.

The failure mode: reporting a lower EMI as a saving

Bank of Baroda’s home loan takeover calculator, retrieved 2026-09-03, takes the outstanding balance, the current EMI, the remaining tenure in months, a new tenure in months, and the bank’s rate. It has no field for a processing fee, no field for stamp duty, no field for legal or valuation costs. It outputs a new EMI and a figure labelled “Total Savings in Cash Flow”.

Enter a longer new tenure and the instalment falls, so the reported “savings” rise. The number goes up as the loan gets more expensive.

Bajaj Housing Finance is at least explicit about the same gap. Its calculator disclaimer states that it does not take into account the potential fees or charges levied while availing the loan. SBI’s takeover calculator is the best of the lender set, with a genuine switchover-cost field, but it offers no same-EMI versus same-tenure toggle and no break-even month.

None of this is unique to any one bank. A lender-hosted calculator exists to generate an application, so it cannot structurally output “the transfer costs more than it saves” or “the lower instalment you are being shown raises your total interest”.

The third path, and why it is not a saving

Extending the tenure beyond what was left produces the largest drop in the monthly instalment and the smallest, sometimes negative, saving.

Take the personal loan case: ₹6,00,000 outstanding at 18%, 48 months left, moving to 12%, with a 3% foreclosure charge plus GST, a 1.5% processing fee plus GST and ₹1,000 of documentation, ₹32,860 in total.

The instalment falls by more than twice as much on the longer tenure, and the saving falls to under a quarter. Twelve extra months of interest on a balance that is running down more slowly eats most of the benefit of a six-point rate cut.

That is a legitimate trade for a household whose monthly cash position is tight, and it should be described as what it is: cash-flow relief bought with interest, not a saving. The distinction is the reason the calculator on this site reports the interest total next to the instalment rather than reporting a headline “savings” figure alone.

At the extreme the sign flips. Stretch far enough and the total interest on the new loan exceeds the total interest left on the old one, so the borrower pays more in exchange for a lower monthly number. A calculator that reports the EMI difference and calls it savings will show that case as a large win.

Why break-even does not distinguish the two paths

A common assumption is that the shorter path pays back the switching costs faster. It does not, and the reason is worth stating.

Break-even measures the point at which the interest saved covers the cash paid out. In the first months after a transfer, both paths carry the same principal at the same new rate, so both save the same interest against the old loan. On the same-EMI path that saving is applied to principal; on the same-tenure path it goes into the borrower’s pocket. Either way the interest saved is the same, so month 7 is month 7 in both columns.

Where they diverge is later. The same-EMI path keeps compounding the advantage, so by the end the totals are far apart. Break-even answers “is this transfer worth doing at all”. The path choice answers “how much is it worth”.

Which path suits which situation

These are observations about the arithmetic under stated inputs, not recommendations.

The same-EMI path is worth more whenever the loan has a long tail, because there are more months of avoided interest to accumulate. In example A, with 216 months remaining, it doubled the result. On a loan with 24 months left, the gap between the two paths is small in rupees because there is little tenure to compress.

The same-tenure path is the one that changes the monthly budget. ₹3,076 a month is a real number for a household, and a transfer taken partly for cash-flow reasons is a different decision from one taken to minimise interest.

A combination is available. Nothing requires either extreme. Setting the new EMI anywhere between ₹34,757 and ₹37,833 splits the benefit, and the custom tenure input on the calculator prices any point in between.

The reset circular, and the same choice in a different setting

The same fork appears without any transfer at all. Under the RBI circular on Reset of Floating Interest Rate on EMI based Personal Loans, RBI/2023-24/55 dated 18 August 2023, a lender that resets a floating rate must notify the borrower where the EMI, the tenor, or both change, and must offer a choice between a higher EMI, a longer tenor, or a combination.

The circular exists because tenure extension at reset was happening silently, which is the same failure mode as a takeover calculator reporting a lower instalment as savings. A rate rise absorbed entirely by tenure extension leaves the monthly number untouched and the total interest much higher.

The comparison between staying, switching and simply prepaying with the same cash is worth running as a set. On a loan where the transfer is marginal, as in the ₹12 lakh case on is a home loan transfer worth it, directing the same money at the existing loan often beats both.