An IBAN or International Bank Account Number is a standardized international account number made up of up to 34 letters and numbers to identify bank accounts across countries. Each country has its own sequence, not exceeding 34 characters. IBAN is commonly used in Europe and other regions for making or receiving international payments.

An IBAN comprises data used to authenticate your account number, your bank’s country of origin, and other account information. During a payment, the code is validated to ensure the receiver exists. Transactions fail if an IBAN is invalid. With an IBAN checker, banks can confirm the number is error-free.

How do I find my IBAN number?

You can find your IBAN on your bank statements or by logging into online banking. You can also use an IBAN calculator—enter your existing bank details and it will compute your full IBAN.

How to calculate or check my IBAN code for United Kingdom?

To calculate or verify your United Kingdom IBAN, use the RemitBee IBAN calculator. Enter your bank code, branch code, national check digit, and account number to generate and validate the full IBAN.

IBAN for United Kingdom

Calculate or check a United Kingdom IBAN before sending international payments using the UK format, sort code, and account number.

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What is an IBAN Number in United Kingdom?

IBAN stands for International Bank Account Number. In the UK, it identifies a bank account in a standard format used for cross-border payments, helping banks read the country, bank, branch, and account details correctly.

A UK IBAN starts with the country code GB and includes check digits, a bank code, sort code, and account number. Some international transfers may also ask for the recipient bank’s BIC or SWIFT code.

United Kingdom IBAN Format

What is the IBAN code format for United Kingdom?

IBAN in United Kingdom consist of 22 characters:

2 letter country code: GB
2 check digits
4 letter bank code
6 digit sort code
8 digit account number Example : GB29 NWBK 6016 1331 9268 19

United Kingdom IBAN structure

GB29 NWBK 6016 1331 9268 19

1
Country Code (2 letters)
The IBAN starts with GB, the ISO country code for the United Kingdom. This tells banks the account follows the UK IBAN format.
2
Check Digits (2 numbers)
The two check digits validate the IBAN using the international checksum process, helping spot mistyped or incomplete account details before payment.
3
Bank Code (4 letters)
The four-letter bank code identifies the UK bank in the BBAN section, such as NWBK for NatWest in this example IBAN.
4
Sort Code (6 digits)
The 6-digit sort code identifies the UK branch or payment routing location connected to the account, such as 601613.
5
Account Number (8 digits)
The final eight digits are the UK account number. In this example, 31926819 is the account identifier used by the bank.

Do we need IBAN for UK?

Yes, you usually need a UK IBAN to send or receive international bank transfers linked to a UK account. A sort code and account number identify a domestic UK bank account, but cross-border payments use the IBAN to place those details into a standard international format. Some banks may also request a BIC or SWIFT code, especially for overseas transfers or SEPA euro payments.

IBAN Examples by country

Country name	SEPA	Length	IBAN Examples
Belgium	Yes	16	BE68539007547034
Switzerland	Yes	21	CH9300762011623852957
Germany	Yes	22	DE89370400440532013000
Estonia	Yes	20	EE382200221020145685
Spain	Yes	24	ES9121000418450200051332
Finland	Yes	18	FI2112345600000785
France	Yes	27	FR1420041010050500013M02606
United Kingdom	Yes	22	GB29NWBK60161331926819
Hungary	Yes	28	HU42117730161111101800000000
Ireland	Yes	22	IE29AIBK93115212345678

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What is a UK IBAN number?

How does a UK IBAN work?

Where can I find my UK IBAN?

How do I check or calculate a UK IBAN?

Do I need a BIC or SWIFT code with a UK IBAN?

Can I get an account number from a UK IBAN?