A sort code is a six-digit identifier used in the United Kingdom and Ireland to route certain domestic payments to a bank and branch. It is commonly displayed as three pairs of digits.
Where is a sort code used?
It can appear in account instructions for local transfers and direct debits. Supported payment rails and validation rules depend on the country and institution.
Sort code vs. account number
The sort code identifies the bank or branch route, while the account number identifies the customer account. Both are normally required for a domestic account payment.
Sort code vs. BIC or IBAN
A BIC identifies an institution for international messaging, while an IBAN is a standardized international account identifier. A sort code is a domestic routing element and may be embedded within a UK IBAN.
How should details be verified?
Use official account instructions, confirm the beneficiary and payment type, and validate changed bank details through an independent channel. Format validation does not prove account ownership.
What happens if it is wrong?
The payment can reject, delay or reach an unintended valid account. Resolve the original payment before resending and keep the provider reference.
