RBI USD/INR Swap: $5bn 3-Year Liquidity Move

What the RBI has announced

The Reserve Bank of India (RBI) has said it will conduct a USD/INR buy-sell swap auction of USD 5 billion to inject long-term liquidity into the banking system. In a circular, the central bank said the decision follows a review of “current and evolving liquidity conditions”. The notified tenor for the swap is three years, described as 36 months in the operating framework.

The RBI also specified participation and bidding mechanics, including a minimum bid size of USD 10 million and bids in multiples of USD 1 million thereafter. Under this structure, participating banks deliver dollars to the RBI in the near leg and receive rupee liquidity. At maturity, banks receive back their dollars and repay the rupee amount along with the agreed swap premium.

Two dates cited for the USD 5 billion swap

The information provided includes two scheduled dates for a USD 5 billion USD/INR buy-sell swap auction. One reference states the auction “will be held on May 26, 2026” for a three-year tenor. Another, described as an RBI press release and circular, states the central bank will hold a 36-month swap auction of USD 5 billion on December 16, 2025.

For the December 2025 operation, the RBI has also shared a detailed operational timetable: the auction window is set between 10:30 a.m. and 11:30 a.m. The near-leg settlement is scheduled for December 18, 2025, and the far-leg settlement for December 18, 2028.

How the buy-sell swap works

From the RBI’s side, the operation is described as a “simple buy/sell foreign exchange swap”. A bank sells US dollars to the RBI in the near leg and simultaneously agrees to buy the same amount of US dollars at the end of the swap period. The near leg provides rupee liquidity to the banking system because the RBI credits rupees against the dollars it receives.

At maturity, the transaction reverses. Banks get their dollars back while paying back the rupee amount along with the swap premium agreed through the auction. The structure is designed to provide more durable rupee liquidity over the stated tenor, rather than a short-term cash infusion.

Bidding format, cut-off, and price discovery

The RBI has said participating entities must place bids in terms of the premium they are willing to pay for the full tenor of the swap. The premium is to be quoted in paisa terms up to two decimal places. The auction follows a multiple-price format, meaning successful bids are accepted at the exact premium quoted by each bidder.

For the December 2025 operation, the RBI’s circular notes that bids would be accepted in descending order of premium until the notified amount is reached. The cut-off is set at the level where aggregate demand meets the USD 5 billion notified size, and pro-rata allocation may apply at the cut-off.

Who can participate and how bids are submitted

Eligibility is limited to Authorised Dealer Category-I (AD Category-I) banks. The RBI allows participants to submit multiple bids, with each bid required to be at least USD 10 million. Beyond the minimum, bids can be placed in increments of USD 1 million.

Operationally, the RBI has stated that eligible participants should submit bids through email within the auction window, using the prescribed form on their letterhead (signed and scanned) along with the accompanying Excel sheet. The prescribed form is available on the RBI website. The RBI has also said it will not entertain requests to extend the auction window.

Settlement mechanics and cashflows

The RBI has described the settlement in practical terms. Successful bidders provide dollars to the RBI’s nostro account and receive rupee liquidity in the initial leg. The first leg is settled on a spot basis, consistent with the near-leg date specified for the December 2025 swap.

When the swap unwinds at the end of the tenor, banks buy back the dollars and repay the rupees along with the agreed premium. The RBI has also reserved the right to accept slightly more or less than the notified USD 5 billion, depending on market conditions and operational discretion.

Key numbers at a glance

Dates and operational schedule mentioned

Market impact: what this changes for rupee liquidity

A USD/INR buy-sell swap injects rupee liquidity because banks receive rupees against the dollars they deliver to the RBI in the near leg. The size disclosed is USD 5 billion, described in one place as “about ₹45,000 crore”. The RBI has positioned the operation as a step to provide long-term liquidity to the banking system, reflecting its assessment of “current and evolving liquidity conditions”.

The December 2025 documentation also mentions a broader liquidity plan “in two tranches of ₹50,000 crore each” to be held on December 11, 2025, and December 18, 2025. Taken together, these details show the RBI is using scheduled operations and longer-tenor tools to manage system liquidity, with price discovery conducted through competitive bidding on the swap premium.

Why the structure matters for banks and rates

The three-year tenor is significant because it locks in liquidity support for an extended period rather than addressing only short-term frictions. For banks, the swap provides rupee funds while temporarily transferring dollars to the RBI, with the total cost determined by the premium discovered in the auction. Because bids are quoted in paisa and the auction is multiple-price, different participants can end up paying different premia based on their bids.

The RBI’s discretion to accept slightly more or less than the notified amount adds flexibility. It also signals that the central bank may adjust the final absorption of dollars and corresponding rupee injection depending on market conditions at the time of the auction.

Conclusion

The RBI has outlined a USD 5 billion USD/INR buy-sell swap auction for a three-year tenor as a mechanism to inject long-term rupee liquidity. The information shared includes operational details such as bid sizes, quoting conventions, and the multiple-price format, with eligibility limited to AD Category-I banks. Dates cited include May 26, 2026 in one reference, and December 16, 2025 with near and far leg settlements on December 18, 2025 and December 18, 2028 in another. The next concrete milestone will be the auction itself, where the swap premium cut-off will determine the cost of this three-year liquidity for participating banks.