NatWest has apologised to millions of customers locked out of its app in the latest IT outage to hit a major UK bank.
The high street bank said it was investigating a problem caused by an update to the app that was rolled out late Thursday, leaving customers unable to access their accounts through the app since just after 9am on Friday morning.
It will be disruptive to the more than10 million customers who use the NatWest banking appto access their account every day.
The lender said its other services – including card payments, in-branch, online and telephone banking – were operating as normal.
A NatWest spokesperson said: “We are aware that customers are experiencing difficulties accessing the NatWest mobile banking app. We’re really sorry about this and working to fix it as quickly as possible. Customers can still use online and telephone banking, or visit a branch.”
The app outage comes at a time when NatWest, like most high street banks, is pushing more customers to its online app while shutting branches.
NatWest is due to close 53 more branches throughout 2025, leaving it with 431. The bank said last month that more than 80% of its active current account customers were doing their banking online, while 97% of new accounts were opened digitally.
While the outage was not linked to a cyber-attack, heightened attention is being paid to banks’ resilience after a spate of attacks that have disrupted retailers including Harrods, Co-op and Marks & Spencer.
Banks’ IT systems have come under increased scrutiny in recent months, with customers at Britain’s largest banks and building societies suffering the equivalent of more thanone month of IT failuresbetween January 2023 and February 2025.
Those figures did not include the full impact of an outage at Barclays that startedat the end of Januaryand affected 56% of online payments during the crucial payday period for many employees. It expects to pay a total of between £5m and £7.5m in compensation to customers for “inconvenience or distress”. There has been further disruption at Barclays since then.
Sign up toBusiness Today
Get set for the working day – we'll point you to all the business news and analysis you need every morning
after newsletter promotion
NatWest racked up the most time lost to outages over that period, amounting to 194 hours, through 13 incidents, for which it paid out £348,000. HSBC paid out £232,697 to its customers after 32 incidents led to 176 hours of disruption.
Last week the UK governmentsold its final sharesinNatWest Group, ending 17 years of state ownership since the £45bn taxpayer bailout that saved the bank – formerly known asRoyal Bank of Scotland– from collapse at the height of the 2008 financial crisis.