Irish IBAN Format & IBAN Structure Example

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The Ireland IBAN format consists of a two-letter country code, two check digits and a Basic Bank Account Number (BBAN). The BBAN includes information about the domestic bank and account number. Below you'll find examples for Irish IBAN numbers, format, structure, bank account breakdown, and the Ireland IBAN technical specification.

IBAN example in Ireland

Standard IBANIE29AIBK93115212345678
IBAN print formatIE29 AIBK 9311 5212 3456 78
Country codeIE
Checksum digits29
Bank codeAIBK
Branch code931152
Account number12345678
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IBAN structure in Ireland

A Irish IBAN consists of 22 alpha-numeric characters:

  • 2 letter country code
  • 2 digit checksum number
  • 4 characters from the bank's SWIFT / BIC or bank identification number
  • 6 digit code for the bank branch
  • 8 digit code for the bank account number

Irish IBAN codes contain all the country, bank, and account details required to send or receive money internationally.

Irish banks assign IBAN codes to each individual account to make sure that international transfers are processed correctly.

IBAN codes are used throughout Europe, and also accepted in some areas of the Middle East, North Africa and the Caribbean.

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Irish IBAN Technical Specification

Data ElementDescription - Pattern - Example
Name of countryIreland
IBAN prefix country code (ISO 3166)IE
Country code includes other countries/territoriesN/A
SEPA countryYes
SEPA country also includesN/A
Domestic account number example93-11-52 12345678
BBAN
BBAN structure4!a6!n8!n
BBAN length18
Bank identifier position within the BBAN1-4
Bank identifier length6!n
Branch identifier position within the BBAN5-10
Branch identifier length6!n
Bank identifier example931152
BBAN exampleAIBK93115212345678
IBAN
IBAN structureIE2!n4!a6!n8!n
IBAN length22
Effective dateApr-07
IBAN electronic format exampleIE29AIBK93115212345678
IBAN print format exampleIE29 AIBK 9311 5212 3456 78
Contact Details
OrganisationIrish Payment Services Organisation Ltd
Street Address12-13 Cumberland Street, Dun Laoghaire
City / PostcodeCo. Dublin 2
Department (generic) Emailpayments@bpfi.ie
Central Bank Websitehttps://www.centralbank.ie/
Updates
Last update dateAug-16

IBAN specification conventions

Character representations:
  • n - Digits (numeric characters 0 to 9 only)
  • a - Upper case letters (alphabetic characters A-Z only)
  • c - Upper and lower case alphanumeric characters (A-Z, a-z and 0-9)
  • e - Blank space
Length indications:
  • nn! - Fixed length
  • nn - Maximum length
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ISO 13616-compliant national Irish IBAN breakdown

IBAN (print format)IE29 AIBK 9311 5212 3456 78
IBAN (electronic format)IE29AIBK93115212345678
ISO Country CodeIE (Ireland)
IBAN CheckSum Digits29
IBAN Length22
BBANAIBK93115212345678
BBAN Length18
Bank IdentifierAIBK
Branch Identifier931152
Account Number12345678
SEPA MemberYes
CurrencyEUR (Euro)
Organization NameIrish Payment Services Organisation Ltd

Terms and definitions

IBAN: stands for International Bank Account Number: The expanded version of the basic bank account number (BBAN), intended for use internationally. The IBAN uniquely identifies an individual account, at a specific financial institution, in a particular country and generally has a lenght of up to 34 alphanumeric characters. It is the ISO 13616 international standard for numbering bank accounts.

IBAN Structure: The IBAN structure is defined in ISO 13616-1 and consists of a two-letter ISO 3166-1 country code, followed by two check digits and up to thirty alphanumeric characters for a BBAN (Basic Bank Account Number) which has a fixed length per country and, included within it, a bank identifier with a fixed position and a fixed length per country. The check digits are calculated based on the scheme defined in ISO/IEC 7064 (MOD97-10).

Bank identifier: The identifier that uniquely identifies the financial institution and, when appropriate, the branch of that financial institution servicing an account. The branch identifier format is shown specifically, where present.

BBAN: basic bank account number: The identifier that uniquely identifies an individual account, at a specific financial institution, in a particular country. The BBAN includes a bank identifier of the financial institution servicing that account.

Checksum: The check digits enable validation of the bank account number at source to confirm its integrity before submitting a transaction.

Print format: The IBAN print format adds one space after every four characters whereas the electronic format contains no spaces.