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When you make an international transfer, you can think of it as a cross-border courier journey. In this journey, the Swift code and IBAN play two critical roles, working together to ensure your funds are delivered accurately.
Imagine your transfer as a package:
In global personal remittances exceeding $656 billion annually, it is the collaboration of these two codes that enables the vast financial network to operate efficiently.

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You can think of the Swift code as every bank’s “global ID.” It is a standardized code used in the international financial network to uniquely identify the receiving bank. This code has a more formal name, called Bank Identifier Code (BIC), so when you see BIC, know that it refers to the same thing as a Swift code.
The core role of the Swift code is to ensure your funds reach the correct receiving bank without error. When you make an international transfer, this code tells intermediary and receiving banks: “Hey, this money should go to this bank!”
The SWIFT network covers over 200 countries and regions, connecting more than 11,000 financial institutions. It is precisely because of the unified Swift code that this vast system can efficiently and securely handle trillions of dollars in daily transactions, achieving fast and accurate payment routing.
Its identification target is clear: the bank. It does not concern itself with specific individual accounts, only ensuring the money reaches the correct bank’s doorstep.
This “ID number” is not a random string of characters; each part has a specific meaning. A complete code consists of 8 or 11 characters.
A standard Swift code structure is as follows:
| Component | Characters | Meaning |
|---|---|---|
| Bank Code | 4 letters | Represents the bank’s unique code, usually an abbreviation of the bank’s name. |
| Country Code | 2 letters | The ISO standard code for the country or region where the bank is located. |
| Location Code | 2 characters | Represents the city or region where the bank’s headquarters is located. |
| Branch Code | 3 characters | (Optional) Used to specify a particular branch. If omitted, it refers to the head office. |
To give you a clearer understanding, here are examples of some well-known banks:
When you provide only an 8-character code, the transfer will default to the bank’s head office. If the recipient’s account is at a specific branch, providing the full 11-character code is more precise.
If the Swift code is about getting funds to the correct “city sorting center” (bank), then the IBAN (International Bank Account Number) is the “specific street address” printed on the package. It is a standard developed by the International Organization for Standardization (ISO) and the European Committee for Banking Standards (ECBS), designed to pinpoint a specific account within a bank.
The core role of the IBAN is to ensure funds go to the correct individual or company account, significantly reducing the chances of transfer errors. It uses a standardized format to integrate all key information, such as the country, bank, branch, and individual account, into a single code.
Thus, the IBAN’s identification target is clear: the specific account within the bank. It takes over from the Swift code to complete the “last mile” of the transfer, delivering the money directly into the recipient’s pocket.
The IBAN is not a chaotic string of numbers and letters; its structure is highly logical and can be up to 34 characters long. Each part carries specific information.
A typical IBAN consists of the following three parts:
Let’s take a German IBAN as an example to understand its structure intuitively: DE89 3704 0044 0532 0130 00
| Component | Example | Meaning |
|---|---|---|
| Country Code | DE | Germany |
| Check Digits | 89 | Used to verify the accuracy of the entire number |
| Basic Bank Account Number (BBAN) | 370400440532013000 | Includes the local bank code, account number, etc., for Germany |
When you provide an IBAN, the transfer system can validate its correctness before processing, preventing fund loss or delays due to account errors from the outset.

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After understanding the roles of Swift codes and IBANs, you may wonder: which one should I use? The answer is simple: it depends entirely on your transfer destination. Different countries and regions’ banking systems follow different rules.
When transferring to Europe or the Middle East, the IBAN is typically the key player.
Tips for Transfers to Europe 🇪🇺
- IBAN is critical: In Eurozone countries (e.g., Germany, France, Italy) as well as the UK, Switzerland, and others, the IBAN is a mandatory standard for identifying individual accounts.
- Both are needed: To complete a standard SEPA (Single Euro Payments Area) transfer, you typically need to provide both the recipient’s IBAN and the bank’s BIC (i.e., Swift code). The IBAN locates the account, and the BIC locates the bank.
Many Middle Eastern countries have fully adopted the IBAN system to facilitate international trade and financial settlements. Preparing an IBAN is wise when transferring to the following countries:
In these regions, the combination of IBAN and Swift code ensures your funds arrive quickly and accurately.
Unlike Europe, some major economies in North America and Asia do not use the IBAN system.
These two numbers (Transit Number and Institution Number) together form Canada’s routing number.
For clarity, here’s a quick reference guide summarizing the code combinations needed for transfers to major global regions.
| Transfer Destination | Main Code Combination | Key Notes |
|---|---|---|
| Europe & Some Middle Eastern Countries | IBAN + SWIFT Code | IBAN is mandatory; missing it will prevent the transfer from processing. |
| United States | SWIFT Code + Routing Number | The US does not use IBAN. The Routing Number is critical. |
| Canada | SWIFT Code + Transit & Institution Number | Transit Number (5 digits) and Institution Number (3 digits) together locate the bank branch. |
| Australia | SWIFT Code + BSB Code | BSB (Bank-State-Branch) is a 6-digit code identifying the bank and branch. |
| New Zealand | SWIFT Code + Bank-Branch-Account-Suffix | New Zealand uses a full account format including bank, branch, account, and suffix. |
| Japan | SWIFT Code + Account Number | Japanese account numbers may have a specific format, such as multiple parts, and must be filled out completely. |
| Mainland China | SWIFT Code + Account Number | The process is simple and straightforward; ensure the bank card number is accurate. |
Important Reminder: No matter where you’re transferring, the safest approach is always to request the full transfer details directly from the recipient’s bank. This prevents any issues due to incorrect codes from the outset.
Now that you know which codes are needed for different regions, the next critical question is: how do you ensure the information you have is 100% accurate? The cost of errors can be high, so this step cannot be overlooked.
The safest and most reliable way to obtain accurate transfer information is one: request it directly from the recipient. Recipients can obtain accurate information through the following official channels:
Note on Online Tools 🔍 You may find IBAN validators or Swift code lookup tools online. These tools can be used to preliminarily verify the format’s correctness, but they cannot guarantee the account actually exists or belongs to your recipient. The best practice is to use these tools as a secondary check, not as the primary source of information.
Only the recipient’s bank can ultimately confirm the accuracy of account information. Therefore, always double-check with the recipient before transferring.
If you accidentally enter incorrect information, you may face a series of issues. Incorrect payment details are the leading cause of international transfer delays.
Specifically, you may encounter the following situations:
If you realize you’ve entered incorrect information, the first thing to do is contact your bank immediately, inform them you need to initiate a “SWIFT Recall,” and provide all transaction details. Time is critical; the faster you act, the higher the chance of successfully recovering your funds.
In summary, the key to international transfers is remembering this core concept: the Swift code locates the correct bank, while the IBAN pinpoints the final individual account.
To ensure everything goes smoothly, take the most critical step before transferring: carefully verify all information with the recipient. After completing the transfer, keep transaction records safe and confirm with the recipient that the funds have arrived. This will help you avoid unnecessary trouble and financial loss.
It depends on your transfer destination. When transferring to Europe and some Middle Eastern countries, you typically need to provide both. The IBAN pinpoints the account, and the Swift code locates the bank, working together to ensure a successful transfer.
No. The US banking system does not use IBAN. For transfers to the US, you need to provide the receiving bank’s SWIFT code and a 9-digit Routing Number. Entering an IBAN will cause the transaction to fail.
Yes, they are the same. BIC, or Bank Identifier Code, is the more formal name for the Swift code. When filling out transfer details, seeing BIC is equivalent to seeing Swift code.
Usually not. Banks incur service costs for processing transfers. Even if a transfer is returned due to incorrect information, the fees charged by the bank (typically $20 to $50) are unlikely to be refunded. Therefore, verifying information is crucial.
*This article is provided for general information purposes and does not constitute legal, tax or other professional advice from BiyaPay or its subsidiaries and its affiliates, and it is not intended as a substitute for obtaining advice from a financial advisor or any other professional.
We make no representations, warranties or warranties, express or implied, as to the accuracy, completeness or timeliness of the contents of this publication.



