Barclays, Lloyds and NatWest have pledged to upgrade dozens of shared banking hubs as part of a plan to deal with the growing number of closed branches.
Bim Afolami, the City minister, has worked with bank shareholders and MPs to deal with the improvement of around 40 banking hubs across the UK.
High street lenders have now promised to find 225 sites by the end of the year, rising from initial plans to launch 11 hubs.
Banking hubs are designed to provide customers with access to cash in person as bank branches continue to disappear from towns across the country.
Bereavement services, fraud protection and debt advice will be available at these sites.