The Supreme Court ruling against Yes Bank’s ₹8,415-crore write-off of Additional Tier-1 (AT1) bonds has revived a question that extends well beyond one bank and one rescue package: how should financial systems make investors absorb losses without making the rules unpredictable? The judgment has returned the bonds to Yes Bank’s books, but it has not yet returned money to investors. It has also exposed the institutional tension at the heart of AT1 securities: they are issued as bonds, marketed for income and held by investors, but designed to behave like loss-absorbing capital when a bank comes under severe stress.
That tension became visible during Yes Bank’s rescue in March 2020. The Reserve Bank of India intervened, State Bank of India and other investors joined the reconstruction, and the bank’s AT1 bonds were written off. The instruments had been issued in two tranches: ₹3,000 crore in 2016 and ₹5,415 crore in 2017. Investors challenged the move, arguing that the approved reconstruction scheme did not authorise the administrator to extinguish their holdings.
The Bombay High Court agreed with the investors in January 2023. The RBI, Yes Bank and the Union government appealed, but the Supreme Court dismissed those appeals on October 15, upholding the finding that the administrator lacked the authority to write off instruments that were not covered by the final reconstruction scheme. The ruling therefore turns on the legal authority for the specific write-off, rather than on a rejection of AT1 bonds as a class.
This distinction is central. AT1 instruments were created to strengthen banks without requiring immediate dilution of existing shareholders. They form part of regulatory Tier-1 capital and are intended to absorb losses while a bank continues operating. Unlike conventional bonds, they are generally perpetual, do not have a fixed maturity date and may be redeemed only with regulatory approval. Their coupons are usually higher than those offered by ordinary debt because investors accept the possibility of cancelled interest payments, a loss of principal or conversion into equity.
The product’s design reflects the post-2008 global financial crisis. The Basel III framework sought to make banks hold more capital and ensure that private investors, rather than taxpayers, would bear losses when institutions failed. AT1 bonds became one mechanism for creating a capital buffer that could be reduced or extinguished during a crisis. Their appeal to banks is clear: they provide capital without the same immediate ownership dilution associated with issuing equity.
For investors, however, the economic character of an AT1 is harder to read. It pays a coupon like a bond but can take losses more like equity. A conventional bondholder normally expects repayment according to a specified schedule, subject to the issuer’s ability to pay. An AT1 investor may face cancelled coupons or a complete loss of principal without waiting for a conventional liquidation process. The instrument sits in a complex position within the capital structure, and its treatment depends on contractual triggers, regulatory rules and the legal framework used during resolution.
The Yes Bank judgment shows why those layers matter. The bank’s AT1 securities were intended to absorb losses, but the Supreme Court found that the administrator did not have authority under the formally approved reconstruction scheme to eliminate them. In effect, the court separated the economic purpose of the instrument from the legal power used to impose the loss. A bond may be designed to disappear in a crisis, but the institution seeking to write it down must still act within the authority granted by the applicable resolution framework.
The episode also raises questions about distribution. The Supreme Court criticised Yes Bank for actively offering the high-risk instruments to individual investors, despite RBI rules restricting their sale to institutional investors. That finding places the investor-protection issue alongside the capital-resolution issue. Even if an instrument is legally capable of absorbing losses, the way it is sold can determine whether buyers understand the risk they are assuming.
The conflict is therefore not simply between a bank and its bondholders. Banks need capital instruments that can absorb losses quickly enough to prevent a rescue from becoming a taxpayer-funded transfer. Investors, meanwhile, may approach a security labelled a bond as an income-generating product rather than as a contingent claim on the bank’s survival. The higher coupon is intended to compensate for the danger, but a coupon cannot by itself make the legal and financial consequences comprehensible.
The international comparison with Credit Suisse illustrates the same problem from a different angle. In March 2023, Swiss authorities arranged UBS’s takeover of Credit Suisse and wrote down around 16 billion Swiss francs of Credit Suisse AT1 bonds to zero. Shareholders received UBS shares, which triggered criticism because traditional creditor hierarchies generally place shareholders behind bondholders when losses are allocated. Swiss authorities defended the write-off using the contractual terms of the instruments and emergency measures adopted for the takeover. Investors challenged the decision in court.
The Credit Suisse episode did not establish that AT1 bonds can never be written down. It demonstrated that the precise language of the instruments and the legal authority supporting the action become decisive during a rescue. The Yes Bank outcome points in the opposite direction: a resolution authority’s objective of protecting the banking system cannot automatically substitute for authority that is absent from the approved scheme. Together, the cases have made the treatment of AT1 bonds appear more dependent on jurisdiction, documentation and resolution design than their common regulatory label suggests.
For Yes Bank, the immediate consequence is not necessarily a cash repayment of ₹8,415 crore. The Supreme Court verdict restores the legal dispute over the instruments, but the bank is preparing to seek a review and is unlikely to resume coupon payments immediately. Investors have said that the annual payment due on October 18 remains unpaid and have asked Axis Trustee Services to intervene. The treatment of unpaid coupons will depend on the bond terms and the legal handling of earlier payments.
The balance-sheet effect could nevertheless be material. Yes Bank estimates that restoring the written-off bonds would reduce its common equity Tier-1 capital ratio by 2.4 percentage points to around 11.4%, based on its September 2026 position. Its overall Tier-1 capital ratio would remain around 13.7%. These figures indicate that reinstating the instruments is different from paying them out in cash: the first immediate impact is on reported capital and the bank’s loss-absorption cushion.
That thinner cushion matters because capital ratios are not just accounting indicators. They influence how much capacity a bank has to absorb future losses and how much room it has to rebuild its business without raising additional capital. The report also notes that Yes Bank’s latest annual report showed a debit balance of ₹5,279 crore in its profit and loss account. Any liability for unpaid coupons or other obligations could therefore affect book value and capital planning in addition to the principal amount.
The case also demonstrates why a court victory does not automatically resolve an investor dispute. Bondholders have obtained a favourable ruling on the validity of the write-off, but the timing and method of payment remain unsettled. The bank’s review petition, the trustee’s response, the treatment of coupons and the effect on capital ratios will determine how the judgment translates into financial recovery.
For regulators, the larger challenge is to preserve the loss-absorbing purpose of AT1 bonds while ensuring that investors can predict how and when that purpose will be activated. If banks cannot rely on the instruments during a crisis, their value as regulatory capital is weakened. If investors cannot determine the circumstances in which their holdings may be cancelled, the market’s risk pricing and distribution practices become harder to defend.
The Yes Bank case therefore tests more than the durability of one class of securities. It tests whether a bank-resolution system can combine speed, capital protection and legal certainty. The Supreme Court has not removed AT1 bonds from India’s financial architecture. It has clarified that their intended risk does not eliminate the need for a legally valid resolution process. What remains to be seen is how Yes Bank’s review petition, coupon dispute and capital position develop, and whether regulators respond with clearer rules for issuing, selling and writing down these instruments.
