Updated 3 July 2026 - High street bank comparison

Co-operative Bank vs SantanderWhich should you choose?

Co-operative Bank and Santander can both work as UK high street banking options, but they suit different priorities. Co-operative Bank may appeal if ethical banking, packaged account options and everyday current accounts matters most, while Santander may be worth comparing if you prefer cashback-style accounts, bills and broad everyday banking.

Quick verdict

Pick Co-operative Bank if you want a values-led high street bank.

Pick Santander if you want cashback-style account benefits.

Co-operative Bank logo

Choose Co-operative Bank if...

  • You want a values-led high street bank.
  • You may use packaged account benefits.
  • You want savings and current account options together.
  • You prefer a mainstream bank with ethical positioning.
Read the Co-operative Bank review
Santander logo

Choose Santander if...

  • You want cashback-style account benefits.
  • You pay household bills from your current account.
  • You want branch and app access.
  • You may use Santander savings or borrowing products.
Read the Santander review

Co-operative Bank vs Santander: side-by-side

CategoryCo-operative BankSantanderEdge
Best overall fitEthical banking, packaged account options and everyday current accountsCashback-style accounts, bills and broad everyday bankingTie
Monthly feeStandard current account available, with paid packaged account options.Standard and paid cashback-style account options available.Tie
Branch accessUK branch access, though the network is smaller than the largest banks.UK branch network with app and online banking.Tie
Mobile appApp and online banking for everyday account management.Good app for day-to-day banking and card management.Tie
SavingsSavings, Cash ISA, limited access, fixed rate and regular saver products may be available.Savings and ISA options may be available.Tie
SupportBranch, phone, app and online support.Branch, phone, app and online support.Tie
Extra productsCustomer-led Ethical Policy, packaged accounts, savings, credit cards and personal loans.Cashback-style accounts, credit cards, loans and mortgages.Tie

Final verdict

Co-operative Bank and Santander are worth comparing side by side. The better fit depends on whether you care more about ethical banking, packaged account options and everyday current accounts or cashback-style accounts, bills and broad everyday banking.

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Read the full reviews and guides

We link to every high street bank review here so the comparison pages do not favour one provider over another.

All high street bank reviews

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