Why the FCNR(B) Surge May Be a ₹5 Lakh Crore Profit, Not a Loss, Says SBI Research

When the Foreign Currency Non‑Resident (Bank) or FCNR(B) deposits flooded the Indian banking system – $127 billion in under three months – the buzz was all about a staggering ₹5 lakh crore cost. But, as SBI Research points out, that number is more of a mirage than a reality.

The controversy stems from the way the loss estimate was built. It lumps together two very similar components: roughly ₹1.75 lakh crore of extra interest outgo and about ₹3.18 lakh crore of rupee‑depreciation cost, assuming the rupee slides 5 % a year for five years. In plain English, you’re counting the same foreign‑exchange exposure twice.

Why does that matter? Because the FCNR(B) deposits didn’t sit naked on the balance sheets. They were paired with a special USD‑INR swap facility that hedged the exchange‑rate risk right from the start. Once the principal is hedged, any later rupee fall isn’t a fresh loss for the bank or the RBI – it’s simply the outcome of a contract that’s already been accounted for.

Now, let’s talk numbers that actually matter. SBI’s back‑of‑the‑envelope math says the $127 billion could generate roughly ₹25 lakh crore of fresh credit, assuming a credit multiplier of about 2.5. If banks earn an effective yield of 7.5 % on that credit, the interest income would be close to ₹1.8 trillion a year.

On the cost side, the same banks would pay about ₹75,000 crore in interest on the ₹12 lakh crore of deposits they’ve taken on at a 6.5 % rate. Subtracting that out, you’re left with an effective net interest margin of roughly ₹1 trillion per year – which, over five years, translates to a notional profit of around ₹5 lakh crore.

The hedging expense itself is modest. SBI estimates the swap cost at about $15 billion, spread across three maturity buckets (5‑year, 3‑year and 1‑year) with an average annual USD‑INR hedging cost of 3 %.

What about the Reserve Bank of India? The research team posits that about $100 billion could be redeployed into globally investable assets yielding 4 % over five years, creating roughly $20 billion in returns. After subtracting the $15 billion hedging outflow, the RBI could pocket about $5 billion – or ₹50,000 crore – on its balance sheet.

One more thing to note: the 5 % annual rupee depreciation scenario is a rather aggressive stress‑test. If we dial it back to a more historical 3 % decline, the rupee would likely sit around ₹110 per dollar by 2030, not the ₹120‑₹125 range used in the loss narrative.

All these figures are, of course, based on assumptions. SBI’s disclaimer makes it clear that the numbers are illustrative, not a guarantee. Still, the core message is that the headline‑grabbing loss figure is a case of double‑counting, and the real story could be a substantial upside for both banks and the central bank.

So, next time you hear “₹5 lakh crore loss,” remember the nuance: the FCNR(B) rush may actually be a profit engine, provided the credit multiplier works and hedging costs stay in check.