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.

Clarity is power

Sustvest Broking Private Limited
Sco No. 32 2nd Floor, M3M 113 Market,
Sector 113, Narsinghpur, Gurgaon,
Narsinghpur, Haryana, India, 122004

© 2025 BondScanner. All Rights Reserved

logo

Sustvest Broking Private Limited (U66120HR2024PTC119856), Member of NSE - SEBI Registration No.: INZ000320834, NSE Member Code: 90404

Registered Office: Sco No. 32 2nd Floor, M3M 113 Market, Sector 113, Narsinghpur, Gurgaon, Narsinghpur, Haryana, India, 122004
Corporate Office: Sco No. 32 2nd Floor, M3M 113 Market, Sector 113, Narsinghpur, Gurgaon, Narsinghpur, Haryana, India, 122004
Compliance Officer: CS Vandana Jhinjheria; Contact No: +91 70118 69639; Email id: Vandana.jhinjheria@bondscanner.com
For grievances: Phone: +91 70118 69639

Investment in securities market are subject to market risks, read all the related documents carefully before investing.

We do not charge any brokerage or service fees. Statutory charges (Exchange fees, STT/CTT, GST, etc.) apply and payable by the Client. We operate on a principal basis and may earn revenue through spreads/mark-ups.

Procedure to file a complaint on SEBI SCORES:
(i) Register on SCORES portal
(ii) Mandatory details for filing complaints on SCORES: Name, PAN, Address, Mobile Number, E-mail ID
(iii) Benefits: Effective communication, Speedy redressal of the grievances

To view our complaint data click here

i. Prevent Unauthorised transactions in your account - Update your mobile numbers/email IDs with your Stock Brokers. Receive information of your transactions directly from Exchange on your mobile/email at the end of the day. Prevent Unauthorized Transactions in your demat account Update your Mobile Number with your Depository Participant. Receive alerts on your Registered Mobile for all debit and other important transactions in your demat account directly from NSDL/CDSL on the same day.

ii. There is no need to issue a cheque. Please write the Bank account number and sign the IPO application form to authorize your bank to make payment in case of allotment. In case of non-allotment the funds will remain in your bank account. Issued in the Interest of Investor.

iii. KYC is one time exercise while dealing in securities markets - once KYC is done through a SEBI registered intermediary (broker, DP, Mutual Fund etc.), you need not undergo the same process again when you approach another intermediary.

iv. Investor awareness on fraudsters that are collecting data of customers who are already into trading on Exchanges and sending them bulk messages on the pretext of providing investment tips and luring them to invest with them in their bogus firms by promising huge profits.

v. Advisory for investors - Clients/investors to abstain them from dealing in any schemes of unauthorised collective investments/portfolio management, indicative/ guaranteed/fixed returns / payments etc.

1. Risk warning: Investments in debt securities/municipal debt securities/securitised debt instruments are subject to risks including delay and/or default in payment. Read all the offer related documents carefully.

2. SCORES Procedure: Procedure to file a complaint on SEBI SCORES- (i) Register on SCORES portal (ii) Mandatory details for filing complaints on SCORES: Name, PAN, Address, Mobile Number, E-mail ID (iii) Benefits: Effective communication, Speedy redressal of the grievances

Attention Investors:
1. Stock Brokers can accept securities as margin from clients only by way of pledge in the depository system w.e.f. September 01, 2020.
2. Update your email id and mobile number with your stock broker / depository participant and receive OTP directly from the depository on your email id and/or mobile number to create a pledge.
3. Check your securities / MF / bonds in the consolidated account statement issued by NSDL/CDSL every month.