Why the RBI’s FCNR(B) dollar drive is running into a treaty reality that Indian banks forgot to mention- KBS Sidhu IAS Retd

For weeks now, Indian banks have been dangling a familiar carrot before the global Indian diaspora: fat, “tax‑free” dollar returns through FCNR(B) deposits, backed by the Reserve Bank of India’s latest foreign‑currency window to shore up the rupee. The pitch is seductive. Park your money in India in hard currency, enjoy 6–7% dollar interest, and help the motherland ride out another bout of external stress. But for NRIs living in Singapore, a crucial player has quietly entered the frame—the Singapore taxman. And unlike the sales brochures, he reads the fine print.

I. The Deceptively Simple Proposition
At the heart of the matter is a deceptively simple proposition. Under Indian law, interest on FCNR(B) deposits held by non‑residents is exempt from income tax in India. For decades, this exemption has allowed banks to market FCNR(B) as a clean, tax‑efficient product: foreign‑currency deposits, no Indian tax, fully repatriable. When the RBI periodically opens special FCNR(B) windows, as it has done again in 2026, the excitement is palpable. Banks sweeten rates, regulators waive reserve requirements, and inflow projections in research notes climb to dizzy levels.

II. The Leveraged Trade Under Scrutiny
This time, however, something is different. The leveraged FCNR(B) strategy popular with wealthier NRIs has come under scrutiny. In this structure, an NRI places an FCNR(B) deposit—often booked with an overseas branch in Singapore or GIFT City—then borrows against it and deploys the borrowed funds into India. On paper, the spread between deposit and loan rates, combined with India’s tax exemption, creates an attractive carry trade. In practice, once the Singapore taxman asserts his rights under the India–Singapore tax treaty, the numbers start to look far less exciting.

III. IRAS Holds Its Ground
The Economic Times has reported that Singapore’s Inland Revenue Authority (IRAS) now insists on withholding tax when a Singapore tax‑resident receives interest on such leveraged FCNR structures, even when the underlying deposit is with an Indian bank’s branch. Treaty‑capped withholding, typically around 10% of gross interest for bank‑related payments, is not a rounding error; it eats directly into the headline yield NRIs have been promised. For the Singapore‑based depositor, Indian tax may be zero—but Singaporean tax is very much alive.

Karan Bir Singh Sidhu: The author is a retired IAS officer of the 1984 batch, Punjab cadre, and Founder-Editor of The KBS Chronicle.

The Numbers at a Glance
$20.72 billion — total inflows under RBI’s concessional swap facilities (FCNR(B) + overseas borrowings + ECBs) in the first five weeks after the window opened on 8 June, per RBI’s first official data release on 20 July.

$17.4 billion of that — FCNR(B) deposits specifically.

$40–60 billion — the broad analyst range for what the full window could attract by the 30 September cut‑off; some estimates run as high as $50 billion in fresh capital alone.

$27 billion — what a similar 2013 window raised in three months, though at a steeper 3.5% hedging cost to banks, against zero this time.

$946 million — how far FCNR(B) inflows had collapsed in FY26 before this window, down from $7.08 billion in FY25, which explains the urgency behind the push.

What the official data does not yet show is how much of the $17.4 billion is genuinely fresh NRI money versus existing deposits simply renewed into the new, more attractive terms — nor any currency‑wise breakup between dollars, sterling, euros and the rest. That silence is itself part of the story this article tells.

IV. Treaty Law Doing What It Was Designed to Do
This is not caprice; it is treaty law doing what it was designed to do. The India–Singapore Double Taxation Avoidance Agreement allows both states to tax interest, with Singapore taxing the global income of its residents and India claiming source‑based rights, subject to caps. India chooses to give up its claim on FCNR(B) interest for NRIs by way of domestic exemption. Singapore does not. When interest is paid by a Singapore branch or otherwise arises to a Singapore tax‑resident, IRAS sees a domestic tax event, not a cross‑border curiosity.

V. A Practical Headache for Banks
For banks, this creates a very practical headache. Marketing material that glibly equated “no Indian tax” with “tax‑free” is now being challenged by the lived experience of clients who discover that Singapore’s 10–15% withholding on loan interest or structured payouts has quietly sliced off a chunk of their expected return. In a world of compressed global interest rates, even a 150‑basis‑point surprise can turn a well‑advertised arbitrage into a marginal proposition. HDFC Bank’s leadership has already warned that FCNR(B) inflows may undershoot initial estimates, in part because such tax‑affected leverage trades no longer make economic sense for NRIs in high‑tax jurisdictions like the US and Singapore.

VI. A Deeper Tension in External‑Sector Policy
The episode exposes a deeper tension in the way India has come to rely on NRI deposits as a recurring shock‑absorber for the external sector. Every few years, when the rupee faces pressure or the current account narrows unpleasantly, the system reaches for familiar tools: FCNR(B) windows, concessional swap facilities, and special incentives to draw in diaspora savings. Banks respond with increasingly baroque structures—leveraged deposits, back‑to‑back loans, offshore branches—as they compete for the same pool of NRI dollars. Regulators look the other way, so long as the inflows arrive on time.

The Singapore taxman’s intervention reminds us that this is not a unilateral game. When India constructs schemes on the assumption that other jurisdictions will ignore their own tax laws to facilitate our financial engineering, it is bound to run into friction. IRAS is not challenging India’s right to exempt FCNR(B) interest; it is merely refusing to surrender its own right to tax Singapore residents who earn that interest. That is a perfectly orthodox stance in international tax.

VII. A Governance Lesson in Disclosure
There is also a governance lesson here. The very fact that NRIs feel blindsided by Singapore’s withholding obligations suggests that risk disclosures in bank marketing material have been perfunctory at best. Many FCNR(B) guides aimed at NRIs correctly state that India does not tax FCNR(B) interest but then relegate the country‑of‑residence tax question to a single bland caveat—”local tax rules may apply.” For a sophisticated leveraged strategy, this is inadequate. The cross‑border tax position should be central to the pitch, not an asterisk in four‑point font.

VIII. Where This Leaves the FCNR(B) Drive
In the short run, the RBI’s window will still bring in substantial foreign‑currency deposits, particularly from NRIs in zero‑tax jurisdictions in the Gulf, where there is no personal income tax. For them, FCNR(B) continues to be an elegant way to hold dollar assets with Indian banks without worrying about either Indian or local tax. For NRIs in Singapore, the US, and other high‑tax economies, however, the era of easy, under‑disclosed arbitrage is coming to an end.

That may not be a bad outcome. If anything, this moment should prod Indian policymakers and banks toward a more honest compact with the diaspora. Sell FCNR(B) for what it truly is: a relatively safe, foreign‑currency deposit backed by RBI policy support, with Indian exemption but fully exposed to tax in the country of residence. Stop implying that the product is universally “tax‑free,” and stop building leverage schemes whose economics depend on other countries looking the other way.

When the Singapore taxman comes for NRI dollars, he is not acting out of hostility to India or its diaspora. He is doing what tax authorities everywhere are supposed to do—protect their own tax base, apply treaty rules, and discourage aggressive arbitrage. India, too, must learn to craft external‑sector tools that are resilient without depending on tax‑grey zones abroad. Only then will the FCNR(B) window feel less like a recurring cliff‑hanger and more like a mature instrument in a stable financial system.

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