More than 600,000 current account customers have switched providers in the six months since a new guarantee to take the "fear factor" out of changing banks was launched.
The Payments Council, which is overseeing the new service, said there were 609,300 switches in the six months to the end of March, which represents a 14% increase on the same period a year earlier.
High awareness of and growing confidence in the current account switch service has helped to boost the numbers, the Payments Council said.
More top news
"Vibrant and funny" teenager opted to donate her organs after becoming seriously ill in a "final act" of generosity.
Three men have been sentenced to a total of 31 years for their role in a 'crash for cash' plot which led to the death of a great grandmother
She met with the families of children who must stay near the hospital.