The Bond That Never Grows Up: Perpetual Bonds in India, Explained Properly
In September 2020, a few thousand Indian investors opened their demat statements and found something that isn't supposed to happen to bondholders. Their investment hadn't lost value. It had gone to zero. Overnight. No default notice, no missed coupon, no warning email. Just ₹8,415 crore of Additional Tier-1 bonds, written down to nothing, while the bank that issued them Yes Bank continued operating, taking deposits, and opening new branches the same week.
The instrument behind that morning is the subject of this piece: the perpetual bond. It is one of the strangest, most misunderstood, and most quietly popular products in the Indian fixed-income market. Wealth managers pitch it as "high yield, bank-issued, safe." Term sheets call it "AT1" or "Basel III compliant." Almost nobody explains, in plain language, what you're actually agreeing to when you buy one.
This is that explanation.
What a Perpetual Bond Actually Is
Every bond you've probably encountered has three promises baked in: you lend money, you get periodic interest, and on a fixed date, you get your principal back. A perpetual bond breaks the third promise on purpose.
There is no maturity date. Legally, the issuer can pay you coupons forever and never return your principal, and that would not count as a default. In India, almost all perpetual bonds available to retail and HNI investors are issued by banks SBI, HDFC Bank, ICICI Bank, Punjab National Bank, and similar large lenders under a Reserve Bank of India framework called Basel III. These are formally called Additional Tier-1 bonds, or AT1 bonds, and they exist for one specific reason: they let a bank raise capital that regulators treat almost like equity, without the bank actually issuing shares.
That single fact regulators treat this debt like equity is the thread that explains every unusual feature that follows.
Why "No Maturity" Rarely Means Forever
In practice, almost no investor holds a perpetual bond for fifty years. Issuers build in a call option, typically at the five-year mark, which lets the bank redeem the bond early at face value. The industry has quietly trained itself to assume the call will be exercised pricing, secondary market yields, and even how mutual funds report duration all lean on that assumption.
But an assumption is not a contractual right. The bond does not obligate the bank to call it. If a bank's capital position is under stress precisely when your call date arrives, skipping the call is often the rational move for the issuer even though it leaves you holding an instrument you expected to exit. This is called extension risk, and it is the first quiet trap in perpetual bonds: the exit door works until, one day, it might not.
The Coupon Isn't Guaranteed Either
A conventional bond's coupon is a contractual obligation. Miss it, and the issuer is technically in default. An AT1 bond's coupon is different; it can only be paid out of the bank's current-year distributable profits, and the bank's board has discretion to skip it entirely, in full or in part, even if the bank is profitable. No default is triggered. You simply don't get paid that period, and there's no cumulative catch-up promise.
Layer onto that a loss-absorption feature: if the bank's core capital ratio (CET1) falls below a regulatory trigger, or if RBI determines the bank is non-viable, these bonds can be written down partially, written down entirely, or converted to equity at the regulator's discretion, not yours. That is exactly what happened at Yes Bank in 2020. It wasn't a bug in the instrument. It was the instrument working precisely as Basel III designed it to.
Why the Yield Looks So Attractive
None of this means perpetual bonds are a trap dressed up as an investment. It means the higher coupon, often several percentage points above what the same bank's regular bonds or fixed deposits offer, exists specifically to compensate for these risks. In finance, there's rarely a free lunch; there's only a lunch you haven't fully priced yet.
The honest way to think about a perpetual bond's yield: you are being paid extra to sit closer to the bank's equity holders than its depositors or senior bondholders, in the bank's capital structure, during a crisis. Most of the time, nothing happens, and you collect a coupon that beats a comparable fixed deposit. In a genuine banking crisis, you are one of the first non-equity investors absorbing losses.
Reading the Fine Print Before You Buy One
If you're evaluating a perpetual bond, four questions matter more than the headline yield.
Who is the issuer, and what is their capital cushion? A perpetual bond from a well-capitalised, systemically important bank carries a very different risk profile than one from a smaller private bank operating closer to regulatory minimums. Look at the issuer's CET1 ratio relative to the trigger level the gap is your margin of safety.
What does the credit rating actually rate? Rating agencies assign a distinct, usually lower, rating to AT1 bonds compared to the same issuer's senior bonds precisely because of the coupon-skip and write-down features. If you're only checking the bank's overall rating and not the specific instrument's rating, you're looking at the wrong number.
How is the yield being quoted to you? Following a 2021 SEBI directive after the Yes Bank episode, mutual funds and distributors are required to value and communicate AT1 bonds using yield-to-call assumptions, and to treat the maturity as effectively 100 years if a call isn't reasonably certain specifically to stop the market from pricing these instruments as if the five-year call is a guarantee. If a yield figure is presented to you without that context, ask where it's coming from.
Can you actually exit before the call date? Perpetual bonds trade in a market that's thinner than government securities or even standard corporate bonds. If you need liquidity mid-tenure, the price you'll get may reflect a real discount, not just paper volatility.
Who Perpetual Bonds Genuinely Suit
This isn't an instrument for someone building an emergency fund, and it isn't a fixed-deposit substitute for capital that can't absorb a shock. It tends to make sense for investors who already understand equity-like risk, who are allocating a small, deliberate slice of a diversified fixed-income portfolio toward higher-yield instruments, and who read the term sheet the actual clauses on call, coupon discretion, and loss absorption rather than the one-line yield pitch.
The Yes Bank writedown wasn't proof that perpetual bonds are broken. It was proof that a large number of investors bought an equity-adjacent risk while believing they held a bond. The instrument did what it was built to do. The information gap did the damage.
The Real Takeaway
A perpetual bond asks you to trade a maturity date for a coupon. That trade can be a reasonable one but only for an investor who has actually priced in what "no maturity, discretionary coupon, and loss-absorbing" mean in a downturn, not just what the yield looks like in a rate sheet on a good day.
Before the next perpetual bond crosses your desk, the questions worth asking aren't "what's the yield" they're "what's the CET1 cushion," "what does the instrument-specific rating say," and "am I being shown a yield-to-call number or a yield-to-maturity fiction." Get those three answers first. The coupon will still be there afterward. So will your ability to actually understand what you own.
Where to Check Live AT1 and Perpetual Bond Yields in India
Most of the friction in perpetual bonds isn't the instrument, it's the information. Term sheets are scattered across issuer websites, instrument-specific ratings are rarely shown next to the issuer's overall rating, and yield-to-call figures are often quoted without the assumption behind them.
Finzace lists live AT1 and perpetual bond offerings from Indian banks with the instrument-specific credit rating, ISIN, call date, and yield-to-call basis shown upfront not buried in a downloadable PDF. Bond execution runs through SEBI-registered OBPP partners, with the partner's registration and the applicable risk disclosures shown at the point of investment, so what you're seeing is what you're actually buying into.
It's a reasonable next step if you've read this far and want to see what a real perpetual bond term sheet looks like next to its actual rating, not just its coupon.Explore bonds with Finzace
Frequently Asked Questions
Q. Are perpetual bonds safe in India?
A. Perpetual bonds carry meaningfully more risk than conventional bonds from the same issuer, primarily because coupon payments are discretionary and the principal can be written down under regulatory triggers. Safety depends heavily on the specific issuer's capital strength, not on the fact that a bank issued it.
Q. What happened to Yes Bank's AT1 bondholders?
A. In March 2020, as part of Yes Bank's reconstruction scheme, its Additional Tier-1 bonds worth approximately ₹8,415 crore were written down to zero, while equity shareholders retained some value. The write-down was challenged in court, and the legal proceedings have evolved over subsequent years worth checking the current status before treating any single outcome as final.
Q. Do perpetual bonds ever mature?
A. Not by default. Most Indian perpetual (AT1) bonds carry a call option, typically after five years, that lets the issuer redeem them early but exercising that call is the issuer's choice, not a guaranteed event, and typically also requires regulatory approval.
Q. How are perpetual bond yields calculated in India?
A. Following SEBI's 2021 valuation norms, mutual funds and distributors are required to value AT1 bonds on a yield-to-call basis, and to treat maturity as 100 years from issuance if the call isn't reasonably certain, a rule introduced specifically to prevent misleadingly attractive yield quotes.
Q. What's the difference between AT1 bonds and Tier 2 bonds?
A. Both are issued by banks to meet regulatory capital requirements, but AT1 bonds are perpetual with discretionary coupons and loss-absorption features, while Tier 2 bonds have a fixed maturity and behave much closer to conventional subordinated debt.