Subordinated Debt

Not all debt is equal. When a borrower runs into trouble, lenders are paid back in a strict order, and subordinated debt — often called 'sub-debt' — sits near the bottom of that queue. It ranks below senior creditors and depositors, getting repaid only after they're made whole, which is exactly why it pays a higher interest rate.

The Repayment Hierarchy

In a wind-up or default, claims are settled in priority: secured creditors and depositors first, then senior unsecured creditors, then subordinated debt holders, and finally equity shareholders. Because sub-debt holders absorb losses before senior lenders, they take on more risk and are compensated with higher yields. It's a middle layer between safe senior debt and risky equity.

Why Banks and NBFCs Issue It

The biggest issuers of subordinated debt in India are banks and NBFCs, and the reason is regulatory capital. Under the RBI's Basel III framework, qualifying subordinated bonds count as Tier 2 capital — supplementary, loss-absorbing capital that bolsters a lender's Capital Adequacy Ratio. By issuing sub-debt, a bank strengthens its regulatory capital without diluting shareholders through fresh equity, making it an attractive financing tool. (The riskier Additional Tier 1 / perpetual bonds go a step further, but classic Tier 2 sub-debt is the more common form.)

The Investor's Trade-Off

For fixed-income investors, subordinated bonds offer meaningfully higher coupons than the same issuer's senior bonds — appealing in a low-rate world. But the extra yield is payment for real subordination risk: in a bank failure or resolution, sub-debt can be written down or take losses before depositors and senior bondholders. Indian investors learned this sharply in episodes where bank bondholders faced write-downs during rescues. The lesson: read where a bond sits in the capital structure before chasing its yield. Subordinated debt can be a sensible income holding from a strong issuer, but it is decidedly riskier than it looks, and the rating, the issuer's health and the bond's exact ranking deserve close scrutiny.