TSB shows basic operational carbon management but critical gaps in financed emissions disclosure and supply chain accountability. The bank claims SBTi alignment but hasn't validated targets in four years. Biodiversity and nature risk are entirely absent from strategy. A £36B lending book with no quantified Scope 3 reporting is indefensible.
Same formula for every company. No curve. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Energy Source and Controversies & Red Flags (6/10, 6/10). Weakest on Nature & Biodiversity Impact and Targets & Commitments (2/10, 3/10).
5 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
Limited data coverage. This assessment is based on 5 sources, 80% of which are self-reported by the company. Scores may change as independent evidence becomes available.
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Among the 29 major financial services / banking brands we've scored, TSB Bank sits 12th of 29.
Score history begins 6 April 2026.
As TSB Bank's score updates, the trajectory will appear here.
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TSB Bank is a UK retail and digital banking group founded in 2013, headquartered in Edinburgh. It serves personal and business customers with deposits, mortgages, and lending products. As a mid-sized challenger bank without investment banking operations, its direct environmental footprint is lower than universal banks, but its £36B mortgage portfolio carries significant financed emissions exposure.
UK retail bank with similar financed emissions reporting obligations and net-zero targets under scrutiny
View breakdown →Domestic UK bank peer with comparable mortgage portfolio and operational carbon baseline challenges
View breakdown →UK retail banking competitor facing similar climate disclosure expectations and SBTi alignment gaps
View breakdown →European ethical bank with explicitly integrated sustainability criteria—contrast model for responsible lending
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