The Spread Trick: How Indian Banks Pocket RBI Repo Cuts

The 261-upvote Reddit post nobody wrote an article on

In June 2025, a Mumbai loan DSA with ties to 200-plus banks and NBFCs posted a short thread on r/IndiaInvestments the day after RBI cut the repo rate by 50 basis points. The post got 261 upvotes and 125 comments. Paisabazaar did not cover what he said. Moneycontrol did not cover what he said. Bajaj Finserv did not cover what he said. Nobody did. Here is the exact mechanic in his words:

“Repo was 6% and spread was 2%, now you book your case with this rate so after a month when your rate resets your rate will be 5.5% + 2%. But if you delay, bank might do 5.5% + 2.5%, repo rate is changed but spread is increased, and you will get the benefit when next repo rate is cut. So if you are someone who is planning to take a loan do it before banks implement it (mostly it takes 14 days).”

r/IndiaInvestments, June 6 2025

That is the spread trick. It is legal. It is how several Indian banks structure post-MPC rate cards. It is how a 50 basis point cut from Mint Street turns into a 20 basis point cut at the retail counter, with the other 30 going into the bank’s pocket.

This article explains what a “spread” is, why banks widen it when the repo falls, how to catch them doing it, and what to do if you are already locked into a widened one.

How your EBLR home loan rate is built

Since October 2019, RBI has mandated that all new floating-rate retail loans from commercial banks be linked to an external benchmark. For almost every Indian home loan, the external benchmark is the RBI repo rate. The name is External Benchmark Lending Rate. EBLR for short. The formula every new floating-rate home loan in India follows is:

Your interest rate = RBI repo rate + spread

Both numbers matter.

The repo rate is set by the RBI Monetary Policy Committee every two months. As of the April 2026 MPC, it is 5.25%.

The spread is set by your bank at the time your loan is sanctioned. It bundles the bank’s cost of funds, its operating cost, its credit risk premium and its margin. Typical spreads range from 1.90% to 3.50% depending on your CIBIL score, loan-to-value ratio and profile type.

A typical salaried borrower with 800+ CIBIL in April 2026 sees something like 5.25% plus 1.95%, which is 7.20%. A borrower with a lower CIBIL or higher LTV sees 5.25% plus 2.75%, which is 8.00%.

RBI regulates the first number. The bank controls the second. That is where it gets interesting.

Why the spread moves when the repo does

When RBI cuts the repo, the first number on every existing EBLR loan in the country drops automatically. That is the whole point of the 2019 external benchmark reform. For existing customers, it mostly works. Their rate resets within 1 to 3 months of the MPC decision, and their EMI falls.

New disbursals are a different story. On the day of an MPC cut, banks internally re-quote their new-customer rate cards. They have three options.

Pass the cut through unchanged. Keep the spread at 1.95%, drop the headline rate by the full cut amount. This is what RBI wants.
Widen the spread by the full cut amount. Keep the new-customer rate unchanged at the old number. The bank pockets 100% of the cut on new sanctions.
Widen the spread partially. Pass half the cut through, keep half. This is the most common real-world outcome.

Option 2 and Option 3 are not illegal. There is no rule freezing the spread. Banks are allowed to adjust the spread component of their EBLR rate cards based on their own cost of funds, which did change when RBI cut rates, and on risk factors. The 2019 circular says banks must publish their EBLR structure transparently. It does not say the spread has to stay fixed.

When RBI cuts 50 basis points, most Indian banks pass 15 to 35 basis points through to new borrowers, not the full 50. The rest gets absorbed into a wider spread. RBI itself has documented this in its Report on Trend and Progress of Banking in India as the “monetary policy transmission lag”.

A worked example

Before the June 2025 MPC, a representative large private bank was quoting a new-customer home loan at 8.00% EBLR-linked for a salaried borrower with 800+ CIBIL. Breaking it down:

Repo rate on June 5 2025: 6.00%
Spread: 2.00%
Total: 8.00%

On June 6 2025, RBI cut the repo by 50 basis points to 5.50%. If the bank had passed the cut through fully, the next walk-in customer on June 7 would have been quoted:

Repo rate on June 7: 5.50%
Spread: 2.00% (unchanged)
Total: 7.50%

What several real-world rate cards did that week was drop the headline rate to 7.75%, not 7.50%. Working backwards:

Repo rate on June 7: 5.50%
Spread: 2.25% (quietly widened by 25 basis points)
Total: 7.75%

The borrower sees a 25 basis point saving. The bank pockets the other 25 basis points forever. Because the spread on that borrower’s loan is locked for the life of the loan. When the next RBI cut comes, the bank will pass that one through too, but the borrower will be forever 25 basis points above where they should have been.

On a ₹50 lakh loan with 20 years remaining, 25 basis points is ₹80,000 in lifetime interest. On ₹1 crore, it is ₹1.6 lakh. Multiply by every new home loan sanctioned that week, and the arithmetic gets interesting for the bank.

How to catch your bank doing it

There are three practical signals a borrower can check.

Signal 1. The Wayback Machine rate card comparison

Every major Indian bank publishes its home loan rate card on a public URL. You can snapshot it before and after an MPC decision using the Internet Archive Wayback Machine. It is free, public, and nobody is under any obligation to explain why the archived version differs from the live one.

Steps.

Find the bank’s home loan interest rate page. For HDFC Bank, it is hdfcbank.com/personal/borrow/popular-loans/home-loan/home-loan-interest-rates. For SBI, sbi.co.in/web/personal-banking/loans/home-loans/home-loan. For ICICI Bank, icicibank.com/personal-banking/loans/home-loan/interest-rates.
Plug the URL into web.archive.org/web/*/[that-url] and find the snapshot closest to (but before) the MPC date.
Find the snapshot closest to 14 days after the MPC date.
Compare the starting rate numbers. If the delta is less than the repo cut size, the spread moved.

This is a 10-minute exercise per lender. It produces a documented paper trail.

Signal 2. The new-customer quote test

Call the bank’s home loan desk as a prospective borrower and ask for a rate quote for a profile matching a typical 800+ CIBIL salaried case with a ₹50 lakh ticket. Record the quote. Wait 30 days. Call again with the same profile. Compare.

If the RBI did not move and the quote did, the spread moved. Either direction tells you something.

Signal 3. Your own statement

If you already have an EBLR-linked home loan, the quickest check is your latest statement. Most banks print the benchmark and the spread as separate line items. Look for “EBLR” and “spread” or “mark-up”. If your spread at sanction was 2.00% and the current statement shows 2.25%, one of two things has happened. Either the bank applied a spread widening at a scheduled reset event, or there is a documentation error. Either way, you have a written question for the home loan desk.

Important caveat for existing borrowers. The spread is normally fixed for the life of the loan. Banks cannot arbitrarily widen it on existing loans without documented cause. If yours has moved, that is escalatable via the internal ombudsman and RBI Complaint Management System at cms.rbi.org.in.

If you are about to take a new loan

Three rules from the Mumbai DSA’s thread that are worth internalising.

Disburse within 14 days of your sanction letter. Rate cards typically get re-quoted within 14 calendar days of an MPC decision. A sanction dated before the re-quote but disbursed after is usually honoured at the old (better) rate. Delay too long and the new lower rate kicks in bundled with a wider spread that offsets the gain.
Apply BEFORE an expected MPC cut, not after. This feels counter-intuitive. If you apply before and lock the spread, the next rate cut flows through to you via the repo component. If you apply after, you are paying the widened spread for the life of the loan.
Ask for the spread in writing. Your sanction letter must show both the benchmark and the spread as separate figures. If your RM only shows you “the rate”, ask them to break it down. Any RM who cannot or will not is telling you the spread is the highest number in the branch.

If you are an existing borrower

The spread widening directly affects new disbursals, but existing borrowers have an indirect problem. Because the spread is wider on new loans, the gap between your rate and a new-customer rate at the same bank may be smaller than it looks. A reset to “current EBLR” might move you from 8.75% to 8.00% instead of the 7.50% the RBI cuts should have enabled.

What to do.

Run a rate reset request anyway. 75 basis points is still worth the 0.10% to 0.25% conversion fee.
Check a second lender’s quote in parallel. If Lender B is at 7.50% while your current lender’s reset would take you to 8.00%, the balance transfer math becomes compelling.
Track every MPC decision. After a cut, check your statement 30 days later. If the repo-linked component has not flowed through, send a written query. It is your bank’s error, not yours.

The exact rate reset letter is at home loan rate reset letter template. The balance transfer decision math is at home loan balance transfer guide 2026. The foreclosure rules that protect you on the way out are at home loan foreclosure charges in 2026. If you want the exact overpayment number for your loan, run a rate audit.

What the data shows

RBI’s Report on Trend and Progress of Banking in India for 2024-25 noted that the weighted average lending rate on fresh rupee loans moved about 60% as much as the repo rate in the 12 months to March 2025. For every 100 basis point repo cut, new customers saw a pass-through of 60 basis points. Banks kept the other 40 through spread adjustments, tenure and LTV re-pricing, and fee restructuring.

You should expect to lose 30% to 50% of any repo cut to spread widening if you are a new borrower. And you should expect a 1 to 3 month lag before the remaining 50% to 70% shows up in your EMI.

Frequently asked

Is spread widening allowed under RBI rules?

Yes. The 2019 external benchmark circular requires new floating-rate retail loans to be linked to an external benchmark, and requires transparent publication of the EBLR and spread. It does not cap the spread or freeze it. Banks are free to adjust the spread on new disbursals. What banks cannot do is arbitrarily widen the spread on an existing loan without documented cause. That clause is what makes the second case escalatable.

What is the fastest way for an existing borrower to benefit from a new repo cut?

If your loan is on EBLR and you are within the normal monthly or quarterly reset cycle, the benefit flows through automatically within one reset period. If your loan is on MCLR, which is likely if you took it before October 2019, you are waiting 3 to 12 months and should switch to EBLR. The rate reset letter template covers this.

Why would a bank widen the spread instead of quoting a lower headline rate less?

From the bank’s accounting, the two are equivalent. From a marketing perspective, widening the spread is softer. The bank can advertise “we passed on the RBI cut” without showing the full decline on the rate card. Paisabazaar and BankBazaar comparison pages display the headline rate. A widened spread is invisible on the aggregator layer.

Do HFCs and NBFCs do this too?

Yes and no. HFCs are not required to use EBLR. They price on their own internal benchmarks or proprietary rates. This gives them more flexibility and makes their pricing opaque in different ways. They are not widening a spread in the EBLR sense. They are just as free to lag in passing through rate cuts, though. RBI’s 2025 Report flagged NBFC transmission as even more inconsistent than bank transmission.

What is the single most important thing to do after every MPC decision?

Check your own statement within 30 days. If the rate has moved, great. Nothing to do. If it has not, send a written query to your bank quoting the repo rate change and asking why your loan has not reset. That single action separates the 10% of borrowers who always pay the lowest available rate from the 90% who quietly overpay.

Sources. r/IndiaInvestments thread cited above. RBI circular on External Benchmark Lending Rates, 2019. RBI Report on Trend and Progress of Banking in India 2024-25. This article is for information and does not constitute legal or financial advice.