Santander has completed its acquisition of TSB for £2.65 billion, effective from May 1, 2026. This acquisition marks the largest investment in the UK banking sector in over 15 years.
As of midday, approximately five million TSB customers will join Santander UK. This move brings £71.5 billion in gross customer assets into Santander’s portfolio.
The acquisition positions Santander as the third-largest bank for customer accounts and the fourth-largest for mortgage lending in the UK. David Oldfield will replace Nick Prettejohn as chair of TSB, while Nicola Bannister steps in as the new chief executive.
Within hours, Santander confirmed that there will be no immediate changes to services for customers of either bank. However, both banks will remain separate entities until integration approval is granted.
Santander expects to achieve cost savings of at least £400 million as part of its financial restructuring strategy. The final price paid for TSB rose to £2.9 billion upon completion of the acquisition.
Experts believe that this merger will enhance competition in the UK banking market. Mahesh Aditya stated, “This is excellent news for UK banking with the acquisition representing the single largest investment in the sector for over 15 years.”
Nicola Bannister remarked, “Today marks a significant new chapter for TSB as we become part of Santander.” This shift could reshape customer experiences and service offerings across both banks.
