Santander UK IBAN calculator
Santander UK IBANs start with GB, two check digits and ABBY, followed by your six-digit sort code and eight-digit account number. Enter your sort code and account number to get your IBAN, built in your browser; this calculator is not affiliated with Santander UK.
Calculate your Santander UK IBAN
Santander UK’s BIC is ABBYGB2L, so its IBANs carry ABBY, not a code spelling Santander, followed by your six-digit sort code and eight-digit account number.
Holyheld is not affiliated with Santander UK. Your bank’s app or statement shows your IBAN too; if it differs from the one built here, use your bank’s.
Already have an IBAN? Check it in the IBAN checker.
Santander UK IBAN format
| Detail | Value |
|---|---|
| IBAN length | 22 characters |
| Starts with | GBkk ABBY |
| Bank code in the IBAN | ABBY |
| BIC | ABBYGB2L |
| Sort code | Your six-digit sort code |
| Printed format | GBkk ABBY ssss sscc cccc cc |
| Source | “It’s ABBYGB2LXXX” (santander.co.uk, checked 27 October 2026) |
Frequently asked questions
22 characters: GB, two check digits, the bank code ABBY, then your six-digit sort code and eight-digit account number. Printed in groups of four, it reads GBkk ABBY ssss sscc cccc cc.
Because Santander UK’s BIC is ABBYGB2L, and a UK IBAN carries the first four letters of the bank’s BIC. Santander gives the BIC as ABBYGB2LXXX on its international payments page.
No. Holyheld is not affiliated with Santander UK. The calculator applies the published the United Kingdom IBAN format with Santander UK’s bank code ABBY, taken from Santander UK’s own website. It runs in your browser and sends nothing to a server.
In your Santander UK app, online banking or statements, which usually show the IBAN itself as well. If the IBAN your bank shows differs from the one built here, use your bank’s.
Paying an IBAN from stablecoins? Holyheld Business converts USDC to EUR and pays it out by SEPA. See pricing or the guide to off-ramping USDC to an IBAN.