Indian banks are sitting on a potential risk involving over $127 billion raised through foreign currency (FX) deposits. While the principal amount is protected by the Reserve Bank of India (RBI), the interest payments are not. Many state-run and private lenders have decided not to hedge (buy insurance against price changes) these interest costs, leaving them exposed to a falling rupee.

These deposits were gathered under a special RBI window to help strengthen India's balance of payments when oil prices were high. To support banks, the RBI offered a swap facility for the principal amount. However, the responsibility for managing the risk on interest payments lies solely with the banks. While foreign banks have largely played it safe by hedging, domestic Indian banks have mostly left their positions open.

Bankers at state-run and mid-sized private lenders say they are avoiding hedging because it is too expensive. Currently, it costs about 3% per year to lock in protection for 3-to-5-year deposits. Instead of paying this cost, banks are planning to buy dollars in the spot market (immediate delivery market) when the interest payments actually become due in the future.

This strategy is based on the recent strength of the rupee, which hit a two-month high thanks to RBI intervention. Many FX treasury heads feel that the rupee is stable enough that paying for protection is not worth the money. They believe the RBI will continue to support the currency, making the risk-reward ratio look favorable for now.

However, this approach could backfire if global conditions change. Brent crude oil is nearing $100 a barrel, and there is a high chance the US Federal Reserve will hike interest rates soon. If the rupee starts to weaken significantly, toward the 96-97 per dollar range, the lack of hedging could become a major problem for bank balance sheets.

For Indian bank officers, this means treasury departments must watch the USD/INR exchange rate very closely. If at least half of these interest costs remain unhedged, a sudden drop in the rupee could cause a "rush for dollars." Banks would all try to buy dollars at the same time to cover their liabilities, which would push the rupee down even further.

Customers should know that while their deposits are safe, the banks' own profitability could take a hit if the currency fluctuates wildly. If banks have to pay more for dollars than they planned, it increases their cost of funds. This highlights the delicate balance treasury teams must maintain between saving on hedging costs and protecting against market shocks.

In the coming months, all eyes will be on the US Fed and global oil prices. If the rupee faces fresh pressure, banks that haven't hedged their interest payments might be forced to change their strategy quickly. This could lead to high volatility in the local currency markets, impacting how banks manage their foreign exchange portfolios.