In an update to investors, Anne Boden, CEO and founder of Starling Bank, revealed that the figure was a significant increase on the 43,000 personal current accounts which had been opened at the close of its financial year in November 2017.

The specialist bank said that 60% of its customers were using their account every month with the average deposit being around £900.

Since November, Starling has processed in excess of £1bn in customer transactions, with monthly volumes now exceeding £200m a month.

“Thanks to our accelerating growth and two features we’re extremely excited about, but can’t reveal just yet, we are expecting double digit growth in customer numbers throughout the remainder of 2018,” said Anne.

Starling also announced that since opening its business accounts in March, it had already grown to around 10,000 customers.

“While offering tremendous value to our business customers, these accounts are generating good revenue growth,” added Anne.

Looking to the future, Anne said: “The next stage in our evolution lies in the implementation of machine learning and artificial intelligence to further guide our customers in their financial life and help them select the best services for their individual needs.

“With customers’ permission, we collect rich transactional data that can be used to give them powerful insights into their finances.

“We will be able to help them see if they have enough money to last them to the end of the day, the week, the month, the year or their lives.”

Anne said that Starling was ideally positioned to apply for a grant from the RBS remedies fund and would be aiming for the biggest grant available of £120m.

“With funding of this scale, we would be able to deliver a ground breaking, technology driven financial proposition to the small- and medium-sized enterprises that make up the backbone of the UK economy.”