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Many UK banks will issue IBANs (they are trivially calculated from the sort code and account number anyway), and payments can be made to IBANs - but for transfe
by lol768 7y ago
Many UK banks will issue IBANs (they are trivially calculated from the sort code and account number anyway), and payments can be made to IBANs - but for transfers within the UK, there is no need to provide an IBAN.
Note that it is still possible to check an account number without an IBAN: https://github.com/AntoineAugusti/moduluschecking https://github.com/AntoineAugusti/moduluschecking
The issue here was not the account number being wrong, but rather the combination of sort code and account number being wrong - for which there is not necessarily a checksum digit covering the pair.
- dfawcus 7y agoMost UK IBANs can be trivially derived from the sort code and account. I have some accounts where the sort code and account are not directly embedded in the IBAN. So for those possibly there is a mapping table one could refer to.
- erincandescent 7y agoYou can _always_ derive it. For any case where you can't, something funky is going on (perhaps a common holding account IBAN where customer-specific information is encoded in the reference. I've seen this occasionally from TransferWise and Revolut)