IBAN Guides & Articles
In-depth guides on international bank transfers, IBAN formats, and the banking systems behind them. Written for finance professionals, accountants, and anyone sending or receiving money across borders. Topics cover country-specific IBAN structures, SEPA rules, checksum validation, common transfer errors, and practical advice for working with banks in Europe and beyond.
Austria IBAN Format Explained
Austrian IBANs are 20 characters and include a 5-digit bank code and 11-digit account number. Austria is a founding SEPA member.
Switzerland IBAN Format: Banking Precision
Swiss IBANs are 21 characters and include a 5-digit bank clearing number. Switzerland is not in the EU but is a SEPA member.
Belgium IBAN Format Guide
Belgian IBANs are 16 characters — among the shortest in Europe. They encode a 3-digit bank code and a 7-digit account number with 2 national check digits.
Netherlands IBAN Format: Everything You Need to Know
Dutch IBANs are 18 characters — one of the shorter formats in Europe. They include a 4-letter bank code and 10-digit account number.
Italy IBAN Format: The Complete Guide
Italian IBANs are 27 characters and include a 1-character CIN code, 5-digit ABI bank code, 5-digit CAB branch code, and 12-character account number.
Spain IBAN Format Explained
Spanish IBANs are 24 characters and include a 4-digit bank code, 4-digit branch code, 2 national check digits, and a 10-digit account number.
France IBAN Format: A Complete Guide
French IBANs are 27 characters and include a 5-digit bank code, 5-digit branch code, and 11-character account identifier. Here is the full breakdown.
UK IBAN Format: Sort Code, Account Number, and More
British IBANs are 22 characters and encode the familiar sort code and account number. Here is exactly how a UK IBAN is structured and validated.
How to Send Money Internationally: A Step-by-Step Guide
Sending money abroad requires an IBAN, a SWIFT/BIC code, and understanding of transfer fees. This guide walks you through every step.
IBAN Lengths by Country: The Complete Reference
Every country using IBAN has a fixed character length. From 15 characters (Norway) to 34 characters (Malta), here is the complete reference table.
Understanding IBAN Check Digits and the MOD-97 Algorithm
The two check digits in every IBAN protect against typos using a modular arithmetic algorithm. Here is exactly how it works.
Common IBAN Mistakes and How to Avoid Them
Typos, missing characters, and incorrect country codes are the most common IBAN errors. Learn how to spot and avoid them before your payment fails.