EMI Math at a 5.50% Repo Rate: What 25 Basis Points Adds at Every Bengaluru Loan Size

On October 7, 2026, the Reserve Bank of India raised the policy repo rate from 5.25% to 5.50%, with immediate effect, according to the RBI's Liquidity Adjustment Facility circular of that date. Three weeks later, the question for a Bengaluru buyer is a piece of arithmetic: what does a quarter of a percentage point actually add to the monthly instalment on the flat they are about to book, or already paying for?

This guide does that arithmetic once, across five loan sizes from Rs 50 lakh to Rs 1.5 crore, and then shows how to use the same method to stress test a loan before you commit. The rates used are illustrations, not quotes from any lender. The method is what matters.

The short answer. On an illustrative 20 year loan, a move from 8.25% to 8.50% adds about Rs 788 a month on Rs 50 lakh, about Rs 1,182 on Rs 75 lakh, about Rs 1,575 on Rs 1 crore, about Rs 1,970 on Rs 1.25 crore and about Rs 2,363 on Rs 1.5 crore. Whether and when your EMI changes depends on your loan's benchmark and reset terms. The trade-off: stretching to a 25 year tenor cuts the monthly EMI on Rs 1 crore by about Rs 6,259 at 8.50%, but adds about Rs 33 lakh of total interest over the life of the loan.

What exactly changed on October 7?

The repo rate, which is the rate at which the RBI lends to banks under its liquidity facility, rose by 25 basis points to 5.50%. The same LAF circular set the Standing Deposit Facility rate at 5.25% and the Marginal Standing Facility rate at 5.75%, and said all other terms of the facility were unchanged.

For home buyers, the repo rate matters because a floating rate home loan may be linked to an external benchmark such as the repo rate, or to an internal benchmark of the lender; RBI's reset FAQ refers to both. Our earlier piece on the October 7 hike and your reset options explains the options lenders must offer when rates reset.

How much does 25 basis points add at each loan size?

The table below uses the standard EMI formula on a fresh 20 year loan, with the rate moving from 8.25% to 8.50%, matching the size of the repo move. All figures are rounded to the nearest rupee.

Over a year, those increases add up to roughly Rs 9,456 on Rs 50 lakh, Rs 14,184 on Rs 75 lakh, Rs 18,900 on Rs 1 crore, Rs 23,640 on Rs 1.25 crore and Rs 28,356 on Rs 1.5 crore. A useful rule from the table: each Rs 25 lakh of loan adds roughly Rs 390 to Rs 395 a month for a 25 basis point move at these rates and tenor.

If you already have a loan, your figures will differ because your outstanding principal and remaining tenor are smaller than a fresh loan's. The direction is the same, and the method below lets you plug in your own numbers.

Does my EMI change the day the repo rate moves?

Not necessarily. How and when a repo change reaches your loan depends on the benchmark it is linked to, the spread over that benchmark and the reset dates written into your sanction letter and Key Fact Statement. Your loan may reset on a fixed schedule rather than immediately.

What RBI's framework does require is communication. The RBI's FAQ on the reset of floating interest rates on EMI based personal loans, updated as on October 1, 2025, says any increase in the EMI or tenor on account of the external benchmark rate shall be communicated, and that quarterly statements shall show the principal and interest recovered, the EMI, the number of EMIs left and the annualised rate. It also says the framework covers loans linked to external and internal benchmarks alike.

When a reset does increase your rate, RBI's FAQ says lenders shall offer a higher EMI, a longer tenor or a combination of both, along with prepayment and, where the lender provides it, a switch to a fixed rate. Ask which option has been applied to your loan and confirm it in writing.

Is a longer tenor a better answer to higher rates?

It depends on what you are optimising for. A longer tenor reduces the monthly EMI, which can make a loan fit a budget. It also increases total interest, sometimes sharply. On the Rs 1 crore illustration at 8.50%, a 20 year loan costs about Rs 86,782 a month with about Rs 1.08 crore of total interest. Over 25 years, the EMI falls to about Rs 80,523, a saving of about Rs 6,259 a month, but total interest rises to about Rs 1.42 crore.

The same pattern holds at other loan sizes. On Rs 50 lakh at 8.50%, the EMI is about Rs 43,391 over 20 years and about Rs 40,261 over 25 years, with total interest of about Rs 54 lakh and Rs 71 lakh respectively. Our guide on setting a home loan amount and EMI budget at a 5.50% repo covers how to choose a loan size in the first place.

What if my flat is still under construction and I am paying pre EMI?

Then the hike works on the amount disbursed so far, not the full sanction. If your loan charges interest only on disbursed tranches until the final disbursement, a 25 basis point increase adds roughly Rs 833 a month for every Rs 40 lakh disbursed, Rs 1,250 for every Rs 60 lakh and about Rs 1,667 for every Rs 80 lakh, using simple monthly interest. The figure grows as further tranches are released, so the impact of a rate change during construction depends on how far along the project is.

This is also the stage where the timing of disbursements matters most. Our explainer on pre EMI costs across construction tranches at a 5.50% repo rate walks through a full construction timeline, and the same stress test in the next section applies once your full EMI starts.

For buyers comparing payment plans now, the arithmetic is a reminder that a delayed project does not only push back your move in date. If you are paying rent and pre EMI at the same time, every additional month of construction adds both, which is worth factoring into how you weigh a project's track record and its declared completion date.

How should I stress test a loan before booking?

Run your numbers at higher rates, not just at today's offer. If the rate you are offered is 8.50%, recalculate at 8.75% and 9.00% and ask whether your monthly budget still works at each. On the Rs 1 crore illustration over 20 years, the EMI is about Rs 86,782 at 8.50%, about Rs 88,371 at 8.75% and about Rs 89,973 at 9.00%. On Rs 75 lakh, the same steps give about Rs 65,087, Rs 66,278 and Rs 67,479.

This is not a forecast that rates will rise; it is a way to see how much room you have if they do. A loan that only works at today's rate leaves little margin for an EMI increase, a gap in income or an unexpected expense during the years you are also paying for interiors, maintenance and the move itself.

The same discipline applies to the property side. A PropNewz project profile such as Prestige Falcon City in Konanakunte can help you see the kind of ticket sizes on offer in an area, but the loan you can comfortably carry should set your shortlist, not the other way round.

What should I do this week?

Whether you are booking or already paying, these steps take an evening.

1. Find your loan's benchmark, spread and reset dates in the sanction letter or Key Fact Statement.
2. Note your outstanding principal, current rate and remaining tenor from your latest statement.
3. Recalculate your EMI with a rate 25 basis points higher, and the tenor if the EMI is held flat.
4. If you are about to borrow, recalculate the EMI at 50 and 75 basis points above the offered rate.
5. Compare a 20 year and a 25 year tenor on both the monthly EMI and the total interest.
6. Check whether your lender has notified a change in EMI or tenor, as RBI's reset framework requires.
7. Decide in writing whether you prefer a higher EMI, a longer tenor or a combination after any reset.

Frequently asked questions

How much does a 25 basis point rate rise add to a Rs 1 crore home loan EMI?

On an illustrative 20 year loan moving from 8.25% to 8.50%, the EMI on Rs 1 crore rises from about Rs 85,207 to about Rs 86,782, or about Rs 1,575 a month. Your own increase depends on your rate, outstanding balance, remaining tenor and how your lender applies the reset.

Does the repo hike change my EMI immediately?

Not necessarily. How and when a repo change reaches your loan depends on its benchmark, spread and reset dates in the sanction letter. RBI's reset FAQ says any increase in EMI or tenor due to the external benchmark rate shall be communicated, so watch for that notice and your next quarterly statement.

Is a 25 year tenor cheaper than 20 years?

It lowers the monthly EMI but raises total interest. In the illustration at 8.50%, a Rs 1 crore loan costs about Rs 86,782 a month over 20 years with about Rs 1.08 crore of interest, or about Rs 80,523 a month over 25 years with about Rs 1.42 crore of interest.

How should I stress test a home loan before booking a flat?

Recalculate your EMI at rates 50 and 75 basis points above the rate you are offered and check that your budget still works. In the illustration, a Rs 1 crore 20 year loan costs about Rs 88,371 at 8.75% and about Rs 89,973 at 9.00%, against about Rs 86,782 at 8.50%.

Last updated 2026-10-28. PropNewz Team.