What it is
Senior preferred debt is the most senior class of unsecured, uncollateralised debt an institution ordinarily issues. It ranks alongside other general senior liabilities such as operating obligations, and it sits above the senior non-preferred class in the insolvency and resolution hierarchy. In a bail-in, senior preferred debt absorbs losses only after own funds, subordinated instruments and senior non-preferred debt have been written down or converted.
The term "preferred" distinguishes it from senior non-preferred debt, which was created as a lower-ranking senior class specifically to provide loss-absorbing capacity that can be bailed in ahead of ordinary senior liabilities. Senior preferred debt is the counterpart to that class: it is the senior tier that non-preferred debt was designed to protect.
How it works
Before 2017, most jurisdictions had a single senior unsecured class, which made it difficult to bail in loss-absorbing senior debt without also affecting operating liabilities ranking equally with it. Directive 2017/2399 amended the creditor hierarchy in the BRRD to introduce a harmonised senior non-preferred class ranking below ordinary senior claims but above subordinated debt. Senior preferred debt retained its position above the new class.
As a result, banks now issue two senior tiers. Senior non-preferred instruments count towards subordinated MREL and TLAC because they rank below excluded and operating liabilities. Senior preferred debt generally does not satisfy subordination requirements on its own, since it ranks alongside liabilities that are excluded from bail-in.
Legal basis
The ranking of senior preferred debt relative to senior non-preferred debt follows from the creditor hierarchy in the BRRD as amended by Directive 2017/2399, which inserted the senior non-preferred class beneath ordinary unsecured senior claims. The treatment of both classes in bail-in follows the general bail-in and creditor-hierarchy provisions of the BRRD.
Relevance for banks and investors
For banks, senior preferred debt is a lower-cost funding source than senior non-preferred debt because it carries less expected loss in resolution. Issuers balance the two tiers according to funding needs and the volume of subordinated MREL they must maintain.
For investors, the distinction is central to pricing. Senior preferred spreads are tighter than senior non-preferred spreads for the same issuer, reflecting the buffer of non-preferred and subordinated debt that stands ahead of it in the waterfall. Correctly identifying the seniority class of an instrument is essential to assessing its risk.