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Understanding perpetual bond risk in India means understanding those three dangers before the yield. This guide explains how AT1 bonds work, why the call date matters, and whether the extra return justifies the risk.
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What Is a Perpetual Bond?
A perpetual bond is a bond with no maturity date, and it is the starting point for perpetual bond risk in India. To have bank perpetual bonds explained properly, start there: the issuer never has to repay the principal and instead promises to pay interest for as long as the bond exists.
In India, these bonds are almost always Additional Tier 1, or AT1, bonds issued by banks. Under the Basel III rules the RBI follows, banks must hold a cushion of capital that can absorb losses. AT1 bonds provide that cushion. This is the core of bank perpetual bonds explained: the bond is not really a normal loan to the bank but a layer of capital that sits close to equity.
That closeness to equity is the source of every element of perpetual bond risk that follows. A senior bank bond is a simple loan that must be repaid and carries none of the perpetual bond risk described here. An AT1 bond, once bank perpetual bonds are explained in full, is something quite different, a hybrid that behaves like debt in good times and like equity in bad ones. This is the starting point for perpetual bond risk in India.
Why Does the Call Date Matter Most in Perpetual Bonds?
A perpetual bond has no maturity, but it does have a call date, and this is where perpetual bond risk begins. The call date is the heart of perpetual bond risk in India. The call option gives the issuer the right, but not the duty, to repay the bond after a set period, usually five or ten years.
Most investors buy an AT1 bond expecting it to be called on that first date, treating the call date almost like a maturity date. This assumption drives much of the perpetual bond risk. That expectation is the trap. The issuer is under no obligation to call. If it suits the bank to keep paying the coupon, or if regulators prefer it, the call is skipped and you continue to hold a bond that may never be repaid.
With bank perpetual bonds explained this far, the picture is already clear, and it has happened in practice. When a bond is called, it is repaid at face value, not at the market price. So an investor who bought in the secondary market at a premium, above face value, can lose money even when the call goes ahead as hoped. Perpetual bond risk therefore runs both ways: the call may not come when expected, or it may come at a price below what you paid.
Can a Bank Skip the Interest?
The second danger, the risk of when banks skip AT1 coupon payments, concerns the interest itself. Knowing when banks skip AT1 coupon payments is essential, because unlike a normal bond, an AT1 bond does not guarantee its coupon.
With bank perpetual bonds explained in terms of interest, the coupon on an AT1 bond is discretionary. The bank can choose to skip it, and doing so does not count as a default the way missing interest on an ordinary bond would. There are set conditions for when banks skip AT1 coupon payments, mainly when the bank lacks sufficient distributable profits or when paying would breach its capital buffers.
This is a sharp departure from a fixed deposit or a senior bond, where the interest is a firm promise. With an AT1 bond, the interest is a promise the bank can withdraw under stress, which is what happens when banks skip AT1 coupon payments. So the question of when banks skip AT1 coupon payments is not theoretical. The conditions for when banks skip AT1 coupon payments are built into the instrument and form a key part of perpetual bond risk.
The Write-Down Risk: What the YES Bank Case Taught India
The gravest form of perpetual bond risk is the loss of the principal itself, and India has a stark example. This is the gravest part of perpetual bond risk in India. Under a clause called the Point of Non-Viability, the RBI can order a failing bank’s AT1 bonds to be written down, reducing their value, in the worst case, to zero (Source: RBI Basel III capital regulations).
This is not a hypothetical risk in India. In March 2020, as part of the RBI-led reconstruction of YES Bank, roughly 8,400 crore rupees of AT1 bonds were written down to zero (Source: RBI reconstruction scheme, March 2020, as reported by Business Standard). Bondholders, including retail investors and retirees who had been told these were high-return substitutes for fixed deposits, lost their entire investment. The case remains in the courts years later, but the lesson for perpetual bond risk was immediate and harsh.
The YES Bank episode showed, with bank perpetual bonds explained through a real failure, that an AT1 bond absorbs losses before equity in a crisis, behaving like the riskiest layer of capital rather than a safe bond. It is the single clearest illustration of perpetual bond risk and the reason regulators later tightened who is allowed to buy these bonds.
Is the Extra Yield Worth the Risk?
With the three dangers set out and the perpetual bond risk now clear, the AT1 bond yield vs. risk question can be answered honestly. This is the AT1 bond yield vs. risk trade-off in plain terms. An AT1 bond pays more, often one to three percentage points above a senior bank bond, precisely because it carries all of this risk (Source: Business Standard, AT1 bond market coverage, 2020 to 2026).
With bank perpetual bonds explained as capital rather than a loan, consider the AT1 bond yield vs. risk balance as a simple exchange. In return for the extra yield, you accept that the bond may never be repaid, that the interest may be skipped, and that the principal may be written to zero. The AT1 bond yield vs. risk trade is not a small premium for a small risk; it is a meaningful premium for an equity-like risk.
That framing matters. A senior bond paying a little less is a genuine loan to the bank. An AT1 bond paying a little more is closer to owning the bank’s risk. In the AT1 bond yield vs. risk decision, the extra return is real, but so is the possibility of losing everything, which is the essence of perpetual bond risk.
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Who Should Buy These Perpetual Bonds?
Given the full extent of perpetual bond risk, these bonds suit a narrow group. Recognizing who should hold them is the practical end of understanding perpetual bond risk and the last piece of the perpetual bond risk.
Regulators in India have made the point through rules. SEBI set a high minimum investment size for AT1 bonds, deliberately keeping most retail investors out, after the YES Bank write-down exposed how badly they had been mis-sold. That rule is a signal and a fair summary of perpetual bond risk: these are instruments for informed, well-resourced investors who can absorb a total loss, not a substitute for a deposit.
For such an investor, with bank perpetual bonds explained and understood, a well-rated AT1 bond from a strong bank can have a place, held with open eyes and as a small part of a wider portfolio. For everyone else, the honest verdict on perpetual bond risk is that the extra yield does not justify the danger. If you need your capital to be safe, an AT1 bond is not the place for it, whatever the coupon promises.
Perpetual Bonds (AT1) Frequently Asked Questions
There are three main ones, and together they define perpetual bond risk in India. The bond may never be repaid, since the issuer can skip the call date. The interest may be skipped, which is what happens when banks skip AT1 coupon payments. And the principal can be written down to zero if the bank fails, as the YES Bank case showed.
It depends entirely on the investor. For informed, wealthy investors who can absorb a total loss, a well-rated AT1 bond can offer a higher yield in exchange for equity-like risk. For anyone seeking safety, the AT1 bond yield vs risk balance does not favor these bonds. On an AT1 bond yield vs. risk basis, a senior bond or deposit is more suitable.
Yes, considerably. With bank perpetual bonds explained in full, they are among the riskiest fixed-income instruments available. They can skip interest, may not be repaid at the call date, and can be written to zero. This combination is why perpetual bond risk is treated so seriously by the regulators who oversee these instruments.
Because they sit close to equity in the bank’s capital. An AT1 bond absorbs losses before ordinary shareholders in a crisis. That, in the AT1 bond yield vs. risk balance, is the source of the trade-off: the high coupon exists to compensate for a real chance of skipped coupons or a full write-down, as India saw with YES Bank.
Yes, entirely. This is the central lesson of perpetual bond risk. Under the Point of Non-Viability rule, the RBI can write a failing bank’s AT1 bonds down to zero. In the YES Bank case in 2020, holders lost their whole investment, which is why the write-down risk must never be ignored.
Mainly banks, as part of their regulatory capital under Basel III. Large public and private banks in India, such as the major public sector and large private banks, are the usual issuers. Some large PSUs and companies issue perpetual bonds too, but the AT1 bonds that drive perpetual bond risk in India are a banking instrument.
A bank can skip the coupon when it lacks sufficient distributable profits or when paying would breach its required capital buffers. Understanding when banks skip AT1 coupon payments matters because, unlike an ordinary bond, the moment banks skip AT1 coupon payments is permitted and is not treated as a default.
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