IBAN country format
United Kingdom IBAN Format, Length and Example
Use this guide to understand the IBAN country code for United Kingdom, expected length, and example formatting. Examples are for education and testing only; they are not verified as real bank accounts.
Key United Kingdom IBAN details
- Country
- United Kingdom
- Country code
- GB
- IBAN length
- 22 characters
- SEPA status
- SEPA country - Non-EEA
- BBAN structure
- 18 BBAN characters after the country code and check digits.
United Kingdom IBAN example
This is marked as an example/test value for showing the expected format. It must not be treated as a real account or payment instruction.
- Example/test IBAN
- GB29NWBK60161331926819
- Print format example
- GB29 NWBK 6016 1331 9268 19
- Digital format example
- GB29NWBK60161331926819
What the format check verifies
- Whether the IBAN starts with the GB country code.
- Whether the IBAN has 22 characters after normalization.
- Whether the value uses allowed letters and digits.
- Whether the MOD97-10 checksum is valid.
What it does not verify
- It does not confirm that the bank account exists.
- It does not confirm account ownership.
- It does not confirm bank connectivity, sanctions status, fraud risk, payment readiness, or payment success.
- It does not replace verification with your bank or payee.
United Kingdom SEPA context
The local SEPA country reference data lists this country as: SEPA country - Non-EEA. Country-level SEPA status does not confirm that a specific bank or account can receive a payment.
Non-EU/EEA SEPA country. SEPA participation does not mean EU or EEA payment rules apply.
Limitation note
This page explains IBAN format rules only and does not confirm account existence, account ownership, payment readiness, or payment success.
Before using this IBAN format for payment
A structurally valid IBAN can still be wrong for a real transfer. Always verify payment details with the invoice issuer, recipient, bank, or payment provider before sending money.
FAQ
How long is a UK IBAN?
A UK IBAN has 22 characters.
What country code does a UK IBAN use?
United Kingdom IBANs use the country code GB.
Can UK IBANs include letters?
Yes. The BBAN can include a bank code made from letters.
Does a passed UK IBAN format check confirm payment success?
No. It only indicates that the format and checksum pass supported checks.
Sources and update note
BankCodeKit keeps payment-code checks browser-local and uses local reference data for format and country information. Official public source pages are used for reference, but BankCodeKit does not perform live bank, account, sanctions, or payment-network verification. Reference data is reviewed periodically and does not imply live accuracy.
- Swift IBAN Registry Reference information for IBAN structure, country support, and format rules.
- Swift BIC / ISO 9362 information Reference information for visible Business Identifier Code structure and usage context.
- European Payments Council SEPA scheme countries list Reference information for countries and territories in SEPA scheme scope. Local data reviewed 2026-05-16 against EPC List of SEPA Scheme Countries v8.0, issued 2025-12-24.
BankCodeKit validates format and reference data only. It does not confirm account existence, account ownership, bank connectivity, sanctions status, fraud risk, payment readiness, or payment success.
Last reviewed: 2026-05-15 Sources: Swift IBAN Registry, European Payments Council SEPA scheme countries list Reference data is reviewed periodically. BankCodeKit does not perform live bank, account, sanctions, or payment-network verification.