The Single Euro Payments Area (SEPA) is an EU initiative designed to change the way electronic payments are processed in Europe. It means making a payment in any SEPA Zone country will be no different to making a payment in Ireland.
Previously, Direct Debit's worked using Bank Account Numbers and Sort Codes. With SEPA, these are replaced by IBANs (International Bank Account Number) and BIC (Bank Identifier Code).
For existing Direct Debit customers there is no change. As of 26th October 2017, we will automatically update your details on eFlow.ie, so you don’t have to do anything.
For new eFlow customers, or those updating their Direct Debit payment method, you will need your BIC and IBAN to set up a Direct Debit with eFlow. You will get these numbers from your bank statements or you can go to Banking and Payments Federation Ireland to help you generate the details you require.
http://www.ipso.ie/section/ipsosepaservices