What is the Ireland IBAN format?

Ireland IBANs start with IE, followed by 2 check digits, then a 18-character BBAN encoding the bank code, branch code, and account number.

Ireland is a SEPA member. Transfers from other SEPA countries are fast and low-cost.

IE SEPA Member

Ireland IBAN Format

Q: How long is a Ireland IBAN?

A Ireland IBAN is 22 characters long.

22-character IBAN · EUR Euro · SEPA zone

A Ireland IBAN is 22 characters long and always begins with the country code IE, followed by two check digits. The next 4 characters are the Bank Identifier (BIC). This is followed by the Sort Code (6 characters). The remaining 8 characters identify the individual account number. The Ireland IBAN uses the EUR (Euro) and is a <strong>SEPA member</strong>, meaning euro transfers from other SEPA countries are fast and low-cost.

Length

characters

Country Code

ISO 3166-1

Currency

EUR

Euro

SEPA

Yes

SEPA member

Example IBAN

IE29 AIBK 9311 5212 3456 78

IE Country

29 Check Digits

AIBK Bank Identifier (BIC)

931152 Sort Code

12345678 Account Number

IBAN Structure

Position	Length	Field	Type	Example Value
1–2	2	Country Code	a	IE
3–4	2	Check Digits	n	29
5–8	4	Bank Identifier (BIC)	a	AIBK
9–14	6	Sort Code	n	931152
15–22	8	Account Number	n	12345678

n = numeric only (0–9) a = alphabetic only (A–Z) c = alphanumeric (0–9, A–Z)

Major Banks in Ireland

Bank Name	Bank Code	BIC / SWIFT	City
AIB (Allied Irish Banks)	AIBK	AIBKIE2D	Dublin
Bank of Ireland	BOFI	BOFIIE2D	Dublin
KBC Ireland	KBCO	KBCOIE2D	Dublin
N26 Ireland	N26I	NTSBDEB1XXX	Dublin
Permanent TSB	PTSB	IPBSIE2D	Dublin
Revolut	REVO	REVOLT21	Dublin
Ulster Bank	ULST	ULSBIE2D	Dublin

Validate a Ireland IBAN

Paste a Ireland IBAN below to check it.

Ireland IBAN Regex Pattern

^IE\d{2}[A-Z]{4}\d{6}\d{8}$

Pattern validates length, country code, check digit positions, and field character types. Does not verify the MOD-97 checksum (use the validator above for full validation).

PHP

$iban = strtoupper(str_replace(' ', '', $input));
if (!preg_match('/^IE\\d{2}[A-Z]{4}\\d{6}\\d{8}$/', $iban)) {
    // Invalid Ireland IBAN format
}

JavaScript

const iban = input.replace(/\s+/g, '').toUpperCase();
const pattern = /^IE\d{2}[A-Z]{4}\d{6}\d{8}$/;
if (!pattern.test(iban)) {
  // Invalid Ireland IBAN format
}

Python

import re
iban = input_str.replace(' ', '').upper()
pattern = r'^IE\d{2}[A-Z]{4}\d{6}\d{8}$'
if not re.fullmatch(pattern, iban):
    # Invalid Ireland IBAN format

These snippets check format only. For full IBAN validation including MOD-97 checksum, use a dedicated IBAN library or the validator on this page.

How to Find Your Ireland IBAN

Ireland accounts are traditionally identified using: Bank Code / BIC (4a) + Sort Code (6n) + Account Number (8n). Your IBAN encodes these same components in the standardised international format.

1
Mobile banking app — Open your bank's app, navigate to account details or "Account Info." Your IBAN is usually displayed alongside your account number. Look for a field labelled "IBAN" or "International Account Number."
2
Bank statement — Your Ireland IBAN appears in the account header of your printed or PDF bank statement, typically near the top of the first page.
3
Online banking — Log in to your bank's website and go to "Account Details," "Account Summary," or "Profile." Most Ireland banks display the IBAN prominently in account settings.
4
Bank branch or helpline — Call your bank's customer service or visit a branch with your ID. They can provide your full IBAN instantly.

Once you have your IBAN, use the validator above to confirm it is correctly formatted before sharing it.

Sending Money to Ireland

Ireland is a SEPA member. From any other SEPA country, you only need the recipient's IBAN — no BIC/SWIFT required. Transfers settle within 1 business day (or instantly via SEPA Instant Credit Transfer). Fees cannot exceed what your bank charges for a domestic payment.

What to provide

Recipient's full name
IBAN (22 characters, starts with IE)

Typical transfer time

0–1 day

SEPA Credit Transfer (1 day) or SEPA Instant (<10 seconds if both banks support it)

Ireland is a SEPA member using the Euro. IBAN alone is sufficient for SEPA transfers. Irish IBANs encode a 6-digit sort code and 8-digit account number in the BBAN. Revolut, bunq and other fintechs operating in Ireland issue IE IBANs.

Compare transfer services for Ireland

Specialist services typically charge significantly less than high-street banks for international transfers.

Wise — Low fees, real exchange rate ↗ Revolut — Fast transfers ↗

Central Bank

Central Bank of Ireland

https://www.centralbank.ie ↗

← Iraq Israel →

Quick Facts

IBAN Length: 22 chars
Country Code: IE
Currency: EUR
SEPA: Yes
BBAN Format: 4a14n
IBAN Required: mandatory
Adopted: 2001