What happens to AT-1 bonds when a bank is restructured?
AT-1 bonds absorb losses during banking crises, but administrators cannot write them off without explicit authority in the final government-sanctioned scheme.
Additional Tier-1 (AT-1) bonds are high-yield, perpetual debt instruments designed to absorb losses if a bank's core capital drops below statutory regulatory thresholds. When a bank undergoes restructuring, these bonds can be written down or converted into equity, provided the official government-approved reconstruction framework explicitly permits it. In October 2026, the Supreme Court of India established that a bank administrator cannot write off AT-1 bonds on their own authority once a final reconstruction scheme without such a write-off clause has taken effect. Consequently, any write-off executed outside the terms sanctioned by the central government is illegal, preserving bondholders' legal rights to seek recovery.
- Rs 8,415 crore
- YES Bank administrator decision in March 2020, cited in court records.
- 5 March 2020
- Reserve Bank of India notification.
- 13 March 2020
- Central Government notification under the Banking Regulation Act, 1949.
- 20 January 2023
- Bombay High Court judgment quashing the write-off.
- 15 October 2026
- Supreme Court bench of Justices Dipankar Datta and Augustine George Masih.
- 14.53% drop to Rs 18.12
- Stock market closing figures, 15 October 2026.
- 250 bps reduction
- YES Bank regulatory disclosure, October 2026.
- 14%
- YES Bank regulatory disclosure, October 2026.
What's happening now
In October 2026, the Supreme Court of India upheld the quashing of YES Bank's Rs 8,415 crore write-off of Additional Tier-1 (AT-1) bonds. A bench comprising Justice Dipankar Datta and Justice Augustine George Masih dismissed appeals by YES Bank, the Reserve Bank of India, and the Central Government against a January 2023 Bombay High Court decision. The court ruled that an administrator appointed to manage a lender cannot exceed the powers explicitly granted in the government-approved restructuring scheme.
The ruling leaves YES Bank, where Japan's Sumitomo Mitsui Banking Corporation has become the largest shareholder, facing a substantial adjustment to its core capital buffers. The bank disclosed that it expects an estimated 250 basis point reduction in its core capital ratio, though it projected a pro forma Tier-1 capital ratio of 14 per cent. Credit rating agencies had estimated the potential Common Equity Tier-1 (CET1) capital impact at between 230 and 300 basis points, which would push YES Bank's CET1 ratio down to around 11 to 11.5 per cent from 14 per cent reported in June 2026.
S&P Global Ratings stated that the bank's existing buffers remain sufficient to absorb the impact without an immediate hit to its credit rating, pointing out that its core capital will stay above the statutory minimum requirement of 5.5 per cent. Market reaction was immediate: YES Bank shares fell 14.53 per cent on 15 October 2026 to close at Rs 18.12, as investors factored in the earnings drag from reinstating the debt liabilities.
How AT-1 bond write-offs work during bank distress
Issuance of perpetual bonds
Banks issue Additional Tier-1 bonds to raise core capital under Basel III norms. These instruments have no maturity date and pay higher coupon rates because they carry loss-absorption clauses.
Regulatory intervention
If a bank's capital adequacy ratio falls below statutory thresholds or faces acute distress, the Reserve Bank of India steps in. The central bank can impose a moratorium and appoint an administrator under the Banking Regulation Act, 1949.
Formulation of a reconstruction scheme
The RBI prepares a draft restructuring plan outlining recapitalisation, equity induction, and the treatment of debt obligations. This draft is submitted to the Central Government for review and formal notification.
Sanctioning the final scheme
The Central Government reviews feedback and approves the final reconstruction scheme. The terms specified in this government notification legalise every asset revaluation, equity issuance, and debt write-down.
Execution by the administrator
The administrator executes the restructuring strictly within the provisions contained in the notified scheme. If a specific loss-absorption mechanism, such as writing down AT-1 bonds, is omitted from the final government notification, the administrator cannot independently enforce it.
Who it affects
The Supreme Court ruling directly affects institutional investors, mutual fund houses, and thousands of individual retail bondholders in India who had invested Rs 8,415 crore in YES Bank's AT-1 instruments. Mutual funds like Reliance Nippon (now Nippon India Mutual Fund) and individual high-net-worth investors faced severe write-downs in March 2020 when the bank wiped out the debt obligations overnight.
More broadly, the judgment impacts the entire Indian banking sector and its capital-raising capabilities under Basel III guidelines. AT-1 bonds rely heavily on predictable contract terms and transparent write-off triggers. By establishing that regulators cannot erase capital without adhering strictly to statutory schemes, the ruling restores institutional confidence in Indian bank-issued debt instruments.
On a global level, loss-absorption mechanisms in banking resolution have faced scrutiny worldwide, notably following the write-down of Credit Suisse's AT-1 bonds in Switzerland in 2023. The Indian Supreme Court's ruling reinforces the principle that statutory schemes and clear contract terms govern loss absorption, protecting bondholder rights against administrative overreach.
What's being done, and is it working
Institution
Supreme Court of India
Dismissed appeals from YES Bank, the RBI, and the Centre, upholding the High Court ruling that quashed the write-off.
Community
Axis Trustee Services Limited and bondholders
Litigated against the unilateral write-down of Rs 8,415 crore worth of AT-1 bonds across multiple court levels.
Institution
Reserve Bank of India and Central Government
Appealed the High Court order to defend the administrator's powers and regulatory discretion during bank bailouts.
Market
YES Bank Management
Executed the March 2020 write-off under administrator directions and subsequently challenged the quashing order.
What you can do
Review the information memorandum and offer terms carefully before buying perpetual or high-yield banking bonds.
Verify whether a debt security contains explicit loss-absorption or equity-conversion triggers tied to statutory capital thresholds.
Consult a qualified financial professional to evaluate credit risk and loss priority before allocating capital to unsecured bank instruments.
Track statutory reconstruction notifications issued by the Reserve Bank of India whenever a financial institution enters formal resolution.
What we still don't know
- How YES Bank will fulfill potential financial liabilities arising from the court-ordered restoration of the Rs 8,415 crore AT-1 bonds.
- Whether the Reserve Bank of India will update master circulars and contract templates for future AT-1 bond issuances to clarify write-down triggers.
Questions readers ask
What are AT-1 bonds?
Additional Tier-1 (AT-1) bonds are unsecured, perpetual debt instruments issued by banks to meet Basel III core capital requirements. They offer higher interest rates because they carry provisions allowing banks to write down debt or convert it to equity during severe financial distress.
Why was YES Bank's AT-1 bond write-off declared illegal?
The Supreme Court found that the bank's administrator had no authority to write off the bonds on 14 March 2020 because the final government-notified reconstruction scheme had deleted the write-off clause. Without explicit authorization in the approved scheme or a valid statutory order, the administrator could not extinguish bondholder capital.
Does this ruling mean bondholders get their money back immediately?
The ruling confirms that the March 2020 write-off decision was invalid, restoring the legal standing of the bonds. However, exact recovery mechanics, timelines, and financial settlements remain subject to subsequent corporate steps and regulatory implementation.
Sources
Updates
Updated in October 2026 with YES Bank's disclosure of an expected 250-basis-point hit to core capital and ratings agency evaluations following the Supreme Court judgment.
