IBAN stands for International Bank Account Number. It is a standardized identifier for bank accounts defined by ISO 13616, consisting of a 2-letter country code, 2 check digits, and a country-specific bank and account number (BBAN). IBANs are used in 84 countries to route cross-border payments without ambiguity.

Is an IBAN the same as a bank account number?

No, but your IBAN contains your account number. The IBAN wraps your domestic account number together with a country code, check digits, and bank routing information into a single standardized string that any bank in the world can parse correctly.

Do US banks have IBANs?

No. The United States, Canada, Australia, and most of Asia have not adopted the IBAN standard. US banks use ABA routing numbers and account numbers instead. If you have a US account and need to receive international payments via IBAN, you can open an account with a service like Wise that provides a European IBAN.

What Is an IBAN? Complete Guide to International Bank Account Numbers

Q: What does IBAN stand for?

IBAN stands for International Bank Account Number. The name describes its purpose: it is a bank account number designed to work internationally, replacing the incompatible domestic formats that used to make cross-border payments error-prone.

An IBAN — short for International Bank Account Number — is a standardized format for identifying bank accounts across international borders. Defined by ISO 13616, it gives every bank account in participating countries a globally unique identifier that payment systems can read without ambiguity. When you send or receive a cross-border payment in Europe, the Middle East, or dozens of other regions, the IBAN is the primary address that routes money to the right account.

What Does IBAN Stand For?

IBAN stands for International Bank Account Number. The name describes its purpose exactly: it is a bank account number designed to work internationally. Before IBANs existed, every country used its own account numbering format — and those formats were completely incompatible. A German Bankleitzahl looked nothing like a French RIB or a UK sort code. Sending money across borders required banks to interpret and reformat account data manually, which led to frequent errors, returned payments, and significant processing delays.

The European Committee for Banking Standards (ECBS) developed the first IBAN standard in 1997. ISO adopted it as ISO 13616 the following year. SEPA (the Single Euro Payments Area) made IBANs mandatory for domestic and cross-border transfers across its 36 member countries. Today, 84 countries use the IBAN standard.

How Is an IBAN Structured?

Every IBAN — regardless of country — follows the same four-part structure:

Country code (2 letters): The ISO 3166-1 alpha-2 code for the account-holding country. Examples: DE for Germany, GB for the United Kingdom, TR for Turkey, AE for the UAE.
Check digits (2 digits): Calculated using the MOD-97 algorithm. They act as a built-in error check — any single-character typo or digit transposition will produce a different check digit, causing the IBAN to be rejected before a payment is sent.
Bank identifier: The first portion of the BBAN encodes the bank (and sometimes branch). In Germany this is the 8-digit Bankleitzahl; in the UK it is the 6-digit sort code.
Account number: The individual account number at the identified bank and branch.

Together, the bank identifier and account number form the BBAN (Basic Bank Account Number) — the country-specific part of the IBAN. The total length varies by country, from 15 characters (Norway) to 34 characters (some Middle Eastern countries). German IBANs are always 22 characters; UK IBANs are always 22; French IBANs are always 27.

Example: DE89 3704 0044 0532 0130 00

DE — country code (Germany)
89 — check digits
37040044 — Bankleitzahl (routing code for Deutsche Bank Cologne)
0532013000 — account number

What Is an IBAN Used For?

IBANs are used whenever money moves between banks — especially across borders. Common scenarios include:

Receiving salary payments from a foreign employer
Paying international suppliers or freelancers
Setting up SEPA Direct Debit mandates for recurring subscriptions
Receiving funds from foreign relatives or customers
Opening accounts with European neo-banks like Revolut, Wise, or N26

Within the 36 SEPA countries, the IBAN is sufficient — no additional routing code is needed. For transfers to or from non-SEPA countries (e.g. Turkey, UAE, UK from outside the EU), you typically also need the bank's SWIFT/BIC code so the international SWIFT network can route the message to the correct institution.

Which Countries Use IBANs?

As of 2026, 84 countries have adopted the IBAN standard. This includes:

All 27 EU member states
The UK
Switzerland, Norway, Iceland, Liechtenstein
Turkey, Israel, Jordan, Saudi Arabia, the UAE, Qatar, Kuwait, Bahrain
Many North African and Caribbean nations

Notable non-IBAN countries include the United States, Canada, Australia, China, Japan, and most of South and Southeast Asia. These countries use their own domestic routing systems (ABA routing numbers, BSB codes, etc.). When sending money to these countries, you will be asked for a local account number and routing code — not an IBAN.

See the full list of all 84 IBAN countries and their format specifications at ibanchecker.cash/iban-format.

Is an IBAN the Same as an Account Number?

No — but your IBAN contains your account number. Think of the IBAN as an addressed envelope: inside it is your domestic account number, your bank's routing code, and the country identifier. The envelope format lets any bank in the world parse the address correctly.

For domestic transfers within your own country, you often still use just the local format — sort code plus account number in the UK, for example. For international transfers, you always provide the full IBAN.

How to Find Your IBAN

Your IBAN can be found in several places:

Banking app:Under “Account details” or “Card details” — most modern banking apps display it prominently.
Paper bank statement: Printed at the top or in the account summary section.
Welcome letter: Your bank sends it when the account is opened.
Online banking portal:Usually under “My accounts” → “Account details”.

If you know your sort code and account number (UK) or BLZ and account number (Germany), you can calculate the IBAN using a converter tool. See Sort Code to IBAN and BLZ to IBAN for free converters.

How to Validate an IBAN

Before sending any payment, always validate the IBAN you have been given. A valid IBAN means the country code is recognized, the length matches the country's specification, and the check digits pass the MOD-97 algorithm. This catches the vast majority of typos and formatting errors before your transfer is submitted.

Paste any IBAN into the validator at ibanchecker.cash — it checks the format, check digits, and country rules, and returns the bank name and BIC when available.

Is It Safe to Share Your IBAN?

Yes — sharing your IBAN with someone who needs to send you money is normal and safe. Knowing an IBAN allows someone to deposit money into your account; it does not give them the ability to withdraw funds. In SEPA countries, an IBAN is also needed to set up a direct debit mandate, which is why you should only share it with trusted parties. Never share your online banking password, PIN, or one-time codes alongside your IBAN.

Last updated: June 2026