It reveals that on average, the longest relationship a Briton has with a partner lasts 14.1 years but when it comes to current accounts we remain an item for 16.5 years.
While more than half of all adults in the UK (57%) have kept the same current account for more than a decade, one in five (18%) have stayed loyal for more than 30 years. The research also reveals there are a minority of ‘serial switchers' in the UK – 7% have moved their account three times or more in the past 10 years.
Bank customers in the South East have held the same current account for the longest period of time (17.7 years) where as those in the North West are the most likely to look for a change - but only after a lengthy 15.3 years.
Helen Bierton, head of Santander Current Accounts commented: "For many people enjoying a successful long term relationship in whatever form is more rewarding than chopping and changing. When it comes to current accounts, people often stay with the same provider, even though it might not be the most competitive because the prospect of switching to a new current account can be daunting.
"Interestingly, those who have switched current accounts in the past 10 years say it is about rates and rewards, with reasons such as convenience and trust appearing high on the list of priorities."
