TSB has partnered with FinTech Cogo to add carbon monitoring to its offering.
Cogo used open banking to analyse customer spending.
It then offers an insight into the impact purchases have on the environment.
TSB customers will now receive these insights as well as suggestions on how to reduce their carbon footprint.
What does this mean?
TSB’s Director of Payments, John Lyons, commented: "By partnering with Cogo, we are providing millions of our online customers with all the tools necessary to help make more informed and sustainable choices about their purchases."