AIB is required by law to collect and verify your Personal Public Service Number (PPSN) or Tax Reference Number (TRN). This is required by the Central Bank of Ireland’s Central Credit Register for customer identification.


In order to verify your PPSN/TRN you will need to provide us with an original or electronic version (for example, a PDF or photo) of a document showing your PPSN/TRN and full name.  For a full list of acceptable documents and more information on how to provide it, visit or your local AIB Branch.