HSBC is to offer customers ten different titles in an aim to be gender neutral, the bank has announced.
Officials said the new titles allow people who do not identify as a particular gender, or who do not want to be identified by gender, to choose the title that works for them.
They include Mx, Ind, M and Misc. HSBC said the titles will be applied across a customer's account, including their bank cards and correspondence.
HSBC has also streamlined the process for people who wish to change their gender on their bank account.
It said customers simply need to bring a passport, driving licence or birth certificate that supports the change of gender to update their details in branch.
Branch and contact centre staff have been undergoing training to support this.
The announcement was made ahead of International Transgender Day of Visibility on Friday.
In November, Metro Bank said customers and staff who do not identify themselves with being specifically male or female can now choose non-binary as an option when filling out forms.
As well as choosing options like Mr, Mrs or Miss, customers and staff at Metro Bank can opt for Mx when giving their title.