Practical Guide to Investing in Perpetual Bonds (AT1 Explained)
19 December 2025

Introduction
Perpetual bonds represent one of the more complex segments of the fixed-income market. In India, these instruments are commonly associated with banks and financial institutions and are often referred to as AT1 bonds or Additional Tier 1 bonds.
Investors frequently search for clarity on perpetual bonds India, perpetual bond meaning, AT1 bonds meaning, and how AT 1 bonds differ from regular fixed-income instruments. This article provides an educational, practical explanation of how perpetual bonds work, their structure, and the risks involved.
What Is a Perpetual Bond?
A perpetual bond is a debt instrument with no fixed maturity date. Unlike conventional bonds, the issuer is not obligated to repay the principal at a predetermined time.
Key aspects of perpetual bond meaning:
no maturity date
periodic interest payments (subject to conditions)
issuer may have the option to redeem
principal repayment is not guaranteed
Because of their structure, perpetual bonds behave differently from traditional bonds.
Perpetual Bonds in India: Market Context
Perpetual bonds in India are primarily issued by:
banks
financial institutions
select public-sector entities
These instruments are often used to strengthen the issuer’s capital base rather than fund routine borrowing needs. Regulatory frameworks influence how perpetual bonds are structured, especially for banking institutions.
What Are AT1 / Additional Tier 1 Bonds?
AT1 bonds, also known as Additional Tier 1 bonds, are a category of perpetual bonds issued mainly by banks.
Purpose of AT1 bonds:
to meet regulatory capital requirements
to absorb losses during financial stress
to strengthen balance sheets
AT1 bonds meaning in practice:
perpetual in nature
subordinate to most other debt
carry loss-absorption features
AT1 bonds are not ordinary fixed-income instruments and have unique risk characteristics.
Key Features of AT1 & Perpetual Bonds
1. No Fixed Maturity
These bonds do not have a redemption date.
2. Subordination
They rank below other debt instruments in repayment priority.
3. Discretionary Interest
Interest payments may be deferred or cancelled under certain conditions.
4. Regulatory Triggers
Loss-absorption clauses may be activated based on capital adequacy.
5. Higher Coupon Rates
Coupons are typically higher to compensate for added risk.
These features distinguish perpetual bonds from standard bonds.
How Interest Payments Work
Interest on perpetual bonds:
is paid periodically (often annually)
may be non-cumulative in many structures
can be skipped without constituting default
For AT 1 bonds, interest payments are often linked to regulatory conditions and issuer profitability.
Call Options & Why They Matter
Although perpetual bonds have no maturity, issuers often include call options.
Call option basics:
allows issuer to redeem bonds after a specified period
commonly exercised after 5 or 10 years
subject to regulatory approval
Investors often assume bonds will be called, but call options are not obligations. If not exercised, the bond continues indefinitely.
How Perpetual Bonds Are Priced
Pricing of perpetual bonds depends on:
prevailing interest rates
issuer credit quality
likelihood of call option exercise
market liquidity
regulatory environment
Since principal repayment timing is uncertain, pricing relies heavily on yield expectations and risk assessment.
Taxation Aspects of Perpetual Bonds
Tax treatment depends on prevailing tax laws and bond structure.
General principles:
interest income is typically taxable
taxation applies when interest is received
capital gains tax may apply if sold in secondary market
Tax rules can evolve and should always be reviewed independently.
Risks Specific to AT1 & Perpetual Bonds
Perpetual bonds carry risks beyond conventional bonds:
✔ Credit Risk
Issuer’s financial health is critical.
✔ Interest Cancellation Risk
Interest may be skipped without default.
✔ Principal Write-Down Risk
AT1 bonds may be written down during stress events.
✔ Liquidity Risk
Secondary market liquidity may be limited.
✔ Regulatory Risk
Rules governing AT1 bonds may change.
Understanding these risks is essential before evaluating perpetual bonds.
Who Typically Studies Perpetual Bonds
Perpetual bonds are generally examined by:
experienced fixed-income participants
institutional investors
investors with long-term horizons
those familiar with credit and regulatory risk
They are not designed for short-term or capital-protection-focused strategies.
Common Misconceptions
Misconception 1: Perpetual bonds will always be redeemed
Redemption is optional, not guaranteed.
Misconception 2: Interest is guaranteed
Payments may be deferred or cancelled.
Misconception 3: AT1 bonds are similar to fixed deposits
They carry significantly higher risk.
Misconception 4: Higher yield means higher safety
Higher yields reflect higher risk.
Conclusion
Perpetual bonds and AT1 bonds occupy a distinct space in India’s fixed-income market. Understanding perpetual bond meaning, AT1 bonds meaning, and how additional tier 1 bonds function is essential before evaluating these instruments.
Their unique structure, regulatory features, and risk profile make them fundamentally different from conventional bonds, requiring careful study and risk awareness.
Disclaimer
This blog is intended solely for educational and informational purposes. The bonds and securities mentioned herein are illustrative examples and should not be construed as investment advice or personal recommendations. BondScanner, as a SEBI-registered Online Bond Platform Provider (OBPP), does not provide personalized investment advice through this content.
Readers are advised to independently evaluate investment options and seek professional guidance before making financial decisions. Investments in bonds and other securities are subject to market risks, including the possible loss of principal. Please read all offer documents and risk disclosures carefully before investing.
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