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United Kingdom IBAN format
An IBAN from United Kingdom has 22 characters and starts with GB. It is a SEPA country.
Layout
GBkk bbbb ssss sscc cccc cc
GB = country code · k = check digits · b = bank code · s = branch code · c = account number
| Part | Where | What |
|---|---|---|
| Country code | positions 1-2 | GB |
| Check digits | positions 3-4 | 2 digits (mod 97) |
| Bank code | positions 5-8 | 4 characters |
| Branch code | positions 9-14 | 6 characters |
| Account number | positions 15-22 | 8 characters |
Questions
How many characters is an IBAN in United Kingdom?
An IBAN from United Kingdom always has 22 characters: the country code GB, 2 check digits and a 18-character national account number (BBAN).
How do I know a United Kingdom IBAN is correct?
Check the length (22), that it starts with GB, and the mod-97 check digits. Our free IBAN checker does all three in one step and shows the bank when it is known.
Is United Kingdom in SEPA?
Yes. Euro transfers to United Kingdom IBANs can go as SEPA credit transfers.
Does a valid IBAN mean the account exists?
No. The check proves the number is well formed and the check digits match. Only the bank can confirm that the account is open and whose it is.