Barclays' outage earlier this year is expected to cost up to £7.5m.

Barclays and Santander recorded the highest net losses of current account switches in the second quarter of the year after outages disrupted thousands of customers’ online banking.

Over 22,000 users switched from Barclays in the three months to June 2025, with just under 4,000 joining, marking a net loss of over 18,000. Santander recorded a net loss of 23,015.

The figures – from current account switching service Pay.UK – come after both banks suffered major outages in the beginning of the year.

Barclays wrote in a letter to the Treasury Committee earlier this year that it expects to pay up to £7.5m in compensation to customers after a three-day outage.

Figures from the committee revealed Brits were hit with almost

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