What is an International Bank Account Number (IBAN)?

Written by
Aaron Oh
Last Modified on
December 17, 2024

Let’s say you run TechConnect Solutions in Singapore and need to pay your supplier in Germany, GlobalTech GmbH, for an order of €50,000. To make the payment hassle-free, you ask GlobalTech for their IBAN. To answer 'what is IBAN number?' -- Well, think of an IBAN like a detailed address for your bank account. Just as when you send a letter or a package, you need the recipient’s address to ensure it reaches the right place, an IBAN gives your bank all the necessary details to send money to the correct account, no matter where it’s located in the world. So, when you're paying your supplier in Germany, providing their IBAN ensures the payment gets to their account without any mix-ups, just like delivering a letter to the right address.

The International Bank Account Number (IBAN) was developed to simplify money transfers within the European Union. Before IBAN, different countries had varying formats for bank account numbers, which often led to errors and delays in cross-border transactions, costing both time and money. In 2007, the IBAN system was standardised and adopted by the International Organisation for Standardisation (ISO), significantly reducing these issues. Today, 87 countries use IBAN to make international transfers smoother and more reliable.

If you're unfamiliar with IBAN, it’s completely understandable to wonder, "What exactly is the meaning of IBAN, and how can it help my business?" This short guide will walk you through everything you need to know about IBAN and how it can ensure seamless international payments from Singapore to other IBAN-approved countries.

So, what exactly is an IBAN number? 

The International Bank Account Number (IBAN) is a unique identifier that helps correctly identify overseas bank accounts. It’s part of a standardised international numbering system and includes a country code along with several alphanumeric characters. The IBAN isn’t a replacement for your bank’s regular account number system but rather an added layer of information that helps ensure cross-border payments are accurately processed. When you use IBAN, you're providing all the necessary details for a smooth, error-free transaction.

Now, that you know IBAN meaning, let's take a look at the advantages of using IBAN number

What Are the Benefits of IBAN?  

Here’s why your business needs an IBAN:

  • Secure International Transactions: An IBAN ensures that payments made to or received from overseas clients or suppliers are processed securely and accurately.
  • Cross-Border Direct Debits: It allows you to set up direct debits across borders, automating payments to and from international accounts without the risk of errors.
  • Regulatory Compliance: Having an IBAN helps you validate account information, ensuring your business stays compliant with international financial regulations.
  • Streamlined Payments: It simplifies the process of connecting to foreign payment gateways, making your international transactions more efficient.
  • Efficiency in Transactions: Using an IBAN guarantees that your business follows global transaction standards, reducing delays and the chance of costly mistakes.

Structure of an IBAN

An IBAN can have up to 34 characters and is made up of the following components:

  • Country Code: The first two characters represent the country code, following the ISO country code standard for all IBAN-using countries.
  • Check Digits: The next two digits are provided by the issuing bank or financial institution. These digits help verify the IBAN’s integrity and act as a control number.
  • Bank Identifier: This part of the IBAN includes a code identifying the financial institution and, sometimes, a specific branch of that institution.
  • Basic Bank Account Number (BBAN): The BBAN includes information that uniquely identifies a specific account with a financial institution in a particular country.

For example, let’s take the IBAN of an HSBC account in the UK: GB16HBUK98765412345678.

Here’s the breakdown:

Aspire - IBAN Number Code

This structure ensures that the IBAN is globally recognised and can be used for smooth and accurate international transactions.

Understanding IBAN Adoption

If your business handles international payments, it’s helpful to know where IBAN is used. Initially developed to streamline bank transfers across Europe, IBAN has since been adopted by 87 countries, including Ukraine, Israel, and the UAE. However, some major Asian countries like Japan, China, India, Indonesia, and Thailand haven’t implemented the IBAN system yet.

Countries like the United States, Canada, and Australia recognise IBAN but rely on SWIFT codes for international transactions instead. The IBAN directory is extensive, containing over 350,000 records of individual banks and branches. Here's how the global adoption looks:

  • 87 countries fully use IBAN
  • 36 countries participate in SEPA (Single Euro Payments Area)
  • 23 countries have partial or experimental IBAN usage

Understanding where IBAN applies can help you navigate international transactions more efficiently and choose the right payment methods for your business.

When Would You Need an IBAN for Your Business?

You’ll typically need an IBAN when you’re making or receiving payments in countries that use the IBAN system. Here are some situations where you’ll find it necessary:

International Bank Transfers: If you’re sending money to a business or client in a country that uses IBAN, you’ll need their IBAN to make sure the payment lands in the right account.

SEPA Payments (Within the EU/EEA): If you're doing business in the EU or EEA, IBAN code is required for smooth payments within the Single Euro Payments Area (SEPA). It ensures everything runs without a hitch.

Setting Up Direct Debits: If you’re setting up recurring payments or direct debits, the IBAN is what ensures that money gets withdrawn from the right account.

Receiving Payments from Abroad: When international clients are paying you, providing your IBAN ensures the payment goes straight to your account without any delays.

Paying Bills Internationally: Whether you're paying invoices or bills to suppliers in IBAN-using countries, you’ll likely need to provide your IBAN to make the payment go through smoothly.

IBAN vs. BIC vs. SWIFT Code: Understanding the Differences

Here’s a breakdown of these payment methods:

Feature IBAN BIC SWIFT Code
Meaning IBAN stands for International Bank Account Number BIC stands for Bank Identifier Code SWIFT stands for Society for Worldwide Interbank Financial Telecommunication
Structure Typically up to 34 alphanumeric characters 8 or 11 characters (including 4-letter bank code, 2-letter country code, and branch code) A secure global messaging network used by financial institutions to transmit instructions and information
Example GB-16-HBUK-987654-12345678 BUKBGB22 DBSSSGSG
Purpose Identifies a specific bank account and country for cross-border transactions Identifies a specific bank or financial institution involved in cross-border transactions Provides secure messaging for financial transactions across the globe
Potential Issues Missing IBAN can delay payments or incur extra costs Lack of BIC can result in misdirected payments and additional costs Without SWIFT, transactions can be slower and less accurate. Hence it is important to verify SWIFT code before sending

Each code plays a unique role in ensuring efficient international transactions: IBAN specifies the bank account and country, BIC identifies the bank, and SWIFT facilitates secure communication between financial institutions worldwide. Ensuring all three are correct helps avoid delays and unnecessary fees.

Costs Associated with Using IBAN

Transaction Fees:

  • Banks typically charge a fee on all international transactions, and IBAN transfers are no exception.
  • The fees cover a range of costs, including intermediary charges and payment processing.

Factors Influencing Fees:

  • The cost of a transaction depends on the foreign exchange rate at the time of transfer.
  • Larger sums usually incur higher fees.

Bank’s fee structure:

  • Different banks and financial institutions have different pricing structures, so it’s important to check and compare costs before making an international transfer.

Fee Variations:

  • The interbank rate is different from the foreign exchange rate used by banks, so costs may fluctuate based on the rate applied to your transaction.
  • Keep in mind that processing fees may vary between financial institutions, so always inquire about the full cost breakdown.

Safety and Security of IBAN

Safety and Security of Sharing Your IBAN

Is Sharing IBAN Safe? 

  • Yes, sharing your IBAN is safe as it doesn’t expose sensitive personal information.
  • It allows others to send money to you, but does not grant access to your financial data.

Precautions to Take

  • Always verify the recipient’s identity before sharing your IBAN.
  • Double-check details to avoid misdirected payments or fraud.

Safety and Security of Sending Money Using IBAN

Is Sending Money with IBAN Safe?

  • Yes, sending money with IBAN is safe as long as proper precautions are taken.
  • IBANs only provide necessary account information, not sensitive personal data.

Precautions to Take

  • Ensure the IBAN is correct to avoid errors.
  • Double-check with the recipient and their bank before sending.
  • Review your bank’s security measures for international transactions.

Avoiding Fraud

  • Be cautious of scams and ensure the recipient is trustworthy.
  • Never send payments to unverified third parties.
  • By following these steps, you can securely share and send money using IBAN.
Aspire - IBAN - safe and sound

Alternatives to IBAN in Non-Participating Countries

In countries that don’t use IBAN, there are other ways to handle international payments. Here are the main alternatives:

  • SWIFT/BIC Codes: These are used globally to identify banks. They help route payments to the correct bank, even without IBAN.
  • National Account Numbers: Some countries use their own local account numbers or bank codes for transfers. These work for both domestic and international payments.
  • Routing Numbers (US): In the US, routing numbers identify banks for wire transfers. You’ll need this plus the account number for international payments.
  • Sort Codes (UK, Ireland): These are used in the UK and Ireland, along with the account number, to process payments, including international ones.
  • IFSC Code (India): This code is used for bank transfers within India but can sometimes be used in cross-border payments too.
  • CLABE (Mexico): This 18-digit number works like IBAN for account identification in Mexico.
  • Routing and Account Number (Canada): In Canada, international transfers need the routing number and account number.

However, it is important to get the right details from your bank or the recipient to ensure smooth international transactions.

Common Issues with IBAN and How to Resolve Them

One of the most common problems when using IBAN is entering the wrong code. A mistake can lead to the transaction being rejected or the funds going to the wrong account, which can be costly. The good news is, it’s easy to avoid this—just double-check the IBAN before submitting it.

Another issue you may encounter is format discrepancies. If the IBAN format isn’t correct, it can cause delays or even prevent the transaction from going through. Make sure you’re familiar with the correct format for the country you're sending money to. For example, special characters or extra spaces in the IBAN can lead to transaction failures.

To avoid errors and prevent fraud, it's important to verify the IBAN. There are plenty of online tools available to help you check if the format is correct. Also, it’s always a good idea to confirm the IBAN details with the recipient before submitting.

Finding IBAN Code

How to Find Your IBAN?

Here are the ways you can find your IBAN number:

  1. Log into your online banking account and check your account details.
  2. Review your account statements, where your IBAN may be listed.
  3. Use online tools that can generate your IBAN, but ensure the tool is reliable.
  4. Contact your bank or financial institution directly to request your IBAN.
  5. Double-check with your bank to confirm the validity and authenticity of your IBAN.

How to Verify the IBAN Shared by Your Supplier?

Check the Format: Ensure the IBAN follows the correct structure for the supplier’s country. This includes the country code, check digits, bank code, and account number.

Use an Online IBAN Validator: There are many reliable online tools that can validate the IBAN’s format and check digit to confirm its accuracy.

Cross-check with the Bank: If you’re unsure, contact your bank to verify the specific bank account number IBAN details and ensure it matches the correct account.

Verify Length: Ensure the IBAN is the correct length according to the specific country’s standards. Each country has a set number of characters for its IBANs.

Bank Directory Lookup: Some tools allow you to search the bank’s name and country using the IBAN, confirming it corresponds to the right financial institution.

Frequently Asked Questions About IBAN

Here are the answers to some common questions you might have when using IBAN for international money transfers.

Do I need an IBAN?

It depends on the situation. An IBAN is a unique code that banks use to identify accounts for international transactions. If you're sending money to someone in a country that uses the IBAN system, then yes, you’ll need an IBAN. If you’re dealing with a country that doesn’t use IBAN, you won’t need it. In short, you’ll need an IBAN for international transfers to IBAN-supported countries, but you’re fine without it otherwise.

Can an IBAN be changed?

No, once your IBAN is issued, it’s tied to your specific bank account and can’t be changed.

What should I do if I have any issues with my IBAN?

Don’t worry, IBAN is a secure and reliable system. If you run into any issues with your IBAN, reach out to your bank for quick assistance. They can help you resolve any problems right away.

Do I need both a SWIFT code and an IBAN?

It depends on the transaction. In some cases, both a SWIFT code and IBAN may be needed to accurately identify the recipient’s account. If you're sending money to a country that doesn't use IBAN, you’ll need the SWIFT code to complete the transfer.

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Aaron Oh
is a seasoned content writer specialising in finance, insurance and tech industries. With a writing history at S&P Global, EdgeProp, Indeed, Prudential, and others, Aaron leverages finance knowledge and business insights to help businesses improve productivity and performance.
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