Repo at 5.50%: What 25 Basis Points Does to a Chennai Buyer's Home Loan EMI

Rs 1,182 a month. That is roughly what a 25 basis point rise adds to the EMI on a Rs 75 lakh, 20-year home loan when the rate moves from an illustrative 8.25 per cent to 8.50 per cent. For a Chennai household weighing a flat in the suburbs, that number became relevant on 7 October 2026, when the Reserve Bank of India's Monetary Policy Committee voted unanimously to raise the policy repo rate by 25 basis points to 5.50 per cent, according to the Governor's statement.

This guide does the EMI arithmetic for three loan sizes and two tenures. It does not predict rates or recommend a lender. Bank rates differ, and only your sanction letter tells you what you will pay.

The short answer. The RBI website lists the policy repo rate at 5.50 per cent, the standing deposit facility rate at 5.25 per cent and the marginal standing facility rate at 5.75 per cent. In our worked example, a 25 basis point rise from 8.25 to 8.50 per cent adds about Rs 788 a month on a Rs 50 lakh loan, Rs 1,182 on Rs 75 lakh and Rs 1,575 on Rs 1 crore, each over 20 years. The trade-off: if the lender keeps your EMI unchanged and stretches the tenure instead, the Rs 75 lakh loan runs about 12 months longer, which lowers the monthly strain but raises the total interest you pay.

What did the RBI decide on 7 October 2026?

A 25 basis point increase in the policy repo rate, to 5.50 per cent. The Governor's statement says the MPC "voted unanimously to increase the policy repo rate under the liquidity adjustment facility", and that the standing deposit facility (SDF) rate "stands adjusted at 5.25 per cent" while the marginal standing facility (MSF) rate and the Bank Rate are at 5.75 per cent.

The statement also says the MPC "decided to change the stance to calibrated tightening." For a borrower, the stance is a signal about direction rather than a number in a loan agreement, so this guide does not try to forecast the next move. What matters for a budget is how a rate change flows into an EMI, and that is plain arithmetic.

PropNewz covered the decision itself and the reset options borrowers can ask about in our explainer on the 7 October repo hike. This piece focuses on the numbers for a Chennai buyer.

How much does 25 basis points add to an EMI?

Between about Rs 800 and Rs 1,600 a month for these loan sizes, in our example. The figures below use the standard reducing-balance EMI formula with monthly compounding and assume the rate stays constant for the whole tenure. The two rates, 8.25 and 8.50 per cent, are illustrative and are not any bank's quoted rate.

Two patterns stand out. The monthly increase scales with the loan size, so a Rs 1 crore borrower feels roughly twice the change of a Rs 50 lakh borrower. And the longer tenure produces a slightly larger rupee increase per month for the same loan, because more of each EMI is interest in the early years.

What happens if the lender extends the tenure instead?

You keep the same EMI and pay for longer. Some lenders may offer this route after a rate change, so we tested it on the same assumptions.

On the Rs 75 lakh, 20-year loan, if the EMI stays at Rs 63,905 after the rate moves from 8.25 to 8.50 per cent, the loan takes about 252 months to repay instead of 240, roughly 12 extra months. On a Rs 75 lakh, 25-year loan with the EMI held at Rs 59,134, repayment stretches from 300 months to about 324, roughly 24 extra months.

The longer the original tenure, the more months a small rate rise adds. That is because, on a long loan, a larger share of the EMI goes to interest, leaving less to cut the principal. A borrower who chooses the tenure route should ask the lender for the revised end date and the revised total interest in writing.

Is a 20-year or a 25-year loan cheaper over its life?

The 20-year loan, by a wide margin, in this arithmetic. At 8.50 per cent, a Rs 75 lakh loan over 20 years carries total interest of about Rs 81.2 lakh, against about Rs 1.06 crore over 25 years. The 25-year option lowers the EMI by Rs 4,695 a month (Rs 65,087 against Rs 60,392), but adds about Rs 25 lakh to the total interest bill.

Neither choice is right for everyone. A lower EMI leaves room in the monthly budget for maintenance, school fees or an emergency fund. A shorter tenure costs less overall but leaves less slack if a rate rises again. This is a budgeting decision, not an investment one, and the right answer depends on your income stability and other commitments.

How much of an early EMI is interest?

Most of it. At 8.50 per cent, the interest on Rs 75 lakh for the first month is Rs 53,125, whatever the tenure. On the 20-year loan, that leaves Rs 11,962 of the Rs 65,087 EMI to reduce the principal. On the 25-year loan, only Rs 7,267 of the Rs 60,392 EMI goes to principal in the first month.

The gap compounds. After five years of regular payments in our example, the 20-year borrower has paid about Rs 39.1 lakh in EMIs and cut the outstanding loan by about Rs 8.9 lakh, to roughly Rs 66.1 lakh. The 25-year borrower has paid about Rs 36.2 lakh and cut the loan by only about Rs 5.4 lakh, to roughly Rs 69.6 lakh.

This matters if you expect to sell, upgrade or refinance within a few years. The balance you would need to repay at that point is higher on the longer loan, even though the monthly payment felt lighter. It also explains why a rate rise stretches a long loan by more months: with so little going to principal, a small increase in interest takes a bigger bite out of it.

How do you know if your loan follows the repo rate?

Read your loan documents. Check your sanction letter or Key Facts Statement for the benchmark your interest rate is linked to, the spread over it and the reset frequency, and if any of these is unclear, ask the lender in writing. If the benchmark is the RBI repo rate, a change in the repo rate can feed through at the next reset date in your documents. If it is a different benchmark, the movement may differ in timing and size.

If you hold an older loan linked to MCLR or base rate, the options for switching are set out in our guide to moving from MCLR to a repo-linked loan. For a new buyer, the practical step is to ask each lender which benchmark it will use before you accept a sanction.

How should a Chennai buyer stress-test the budget before booking?

By running the numbers at a higher rate than the one you are quoted. The arithmetic above covers a single 25 basis point move, but rates can move more than once, in either direction, over a 20-year loan, so a buffer is worth building in.

1. Write down the exact loan amount you need after your down payment, stamp duty and registration costs.
2. Ask each lender for the benchmark, spread and reset frequency, and the rate on the date of sanction.
3. Calculate the EMI at the quoted rate and at 50 and 100 basis points higher, using the same tenure.
4. Check that the highest of those EMIs still fits within your monthly take-home pay after other fixed costs.
5. Compare total interest for a 20-year and a 25-year tenure at the quoted rate before choosing.
6. Ask the lender how it handles a rate rise, whether by raising the EMI or extending the tenure, and whether you can choose.
7. Keep the sanction letter and Key Facts Statement together, and note your reset dates in a calendar.

Frequently asked questions

What is the RBI repo rate now?

The RBI website lists the policy repo rate at 5.50 per cent. The Governor's statement of 7 October 2026 says the Monetary Policy Committee voted unanimously to raise it by 25 basis points, with the standing deposit facility rate at 5.25 per cent and the marginal standing facility rate at 5.75 per cent.

How much does a 25 basis point rise add to a Rs 75 lakh EMI?

On a 20-year loan, moving from an illustrative 8.25 per cent to 8.50 per cent raises the EMI from about Rs 63,905 to about Rs 65,087, or roughly Rs 1,182 a month. These figures use the standard reducing-balance formula and assume the rate stays constant for the full tenure.

Is it better to raise the EMI or extend the tenure after a rate hike?

It is a trade-off. In our worked example, keeping the EMI unchanged on a Rs 75 lakh, 20-year loan stretches repayment by about 12 months. A higher EMI keeps the end date but strains the monthly budget. Ask your lender which option applies and what it costs in total.

Will my home loan EMI change automatically after the repo hike?

That depends on your loan terms. Check your sanction letter or Key Facts Statement for the benchmark your rate is linked to and how often it resets. If the benchmark is the repo rate, a change can feed through at the next reset date stated in your documents.

This article uses the RBI's published policy rates and standard EMI arithmetic for information only. The loan rates used are illustrative and are not offers. It is not financial advice; check your own sanction letter and speak to your lender before deciding.

Last updated 2026-11-11. PropNewz Team.