IBAN vs BIC/SWIFT Code: What's the Difference and When Do You Need Each?
IBANs identify bank accounts; BIC/SWIFT codes identify banks. Learn the difference, when you need both, and when one is enough.
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Payments, IBANs & Banking
Practical guides for finance professionals, developers, and anyone who needs to understand how international payments actually work.
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IBAN Check Digit Explained: How MOD-97 Catches Typos Before They Cost You
A beginner-friendly guide to IBAN check digits — what they are, why they exist, and how the MOD-97 algorithm detects errors without contacting a bank.
Read article →What Is a BBAN? Understanding the Bank Account Number Inside an IBAN
The BBAN is the domestic bank account number that sits inside every IBAN. Learn what it encodes, why it varies by country, and how to decode it.
Read article →IBAN Format by Country: Why Every Nation Has a Different Length
IBANs range from 15 to 31 characters depending on the country. Learn why lengths differ, see examples for major countries, and understand the BBAN structure behind each format.
Read article →What Is an IBAN? Complete Guide to International Bank Account Numbers
Learn what an IBAN is, how it works, where it's used, and how to find your own IBAN number.
Read article →How to Read an IBAN: Country Code, Check Digits, and BBAN Explained
Every IBAN has four parts: country code, check digits, bank identifier, and account number. Learn what each section means with real UK and German examples.
Read article →How to Generate a Valid IBAN: Step-by-Step from Bank Code to Check Digits
A complete guide to assembling a valid IBAN — from gathering the bank routing code and account number to computing check digits with MOD-97.
Read article →IBAN Check Digit Validation: The MOD-97 Algorithm Explained
A step-by-step walkthrough of the ISO 13616 MOD-97-10 algorithm — how it detects transcription errors, why it works, and production-ready JavaScript and Python implementations.
Read article →How to Find Your IBAN Number — 5 Ways That Always Work
Find your IBAN number in your banking app, on your bank statement, or calculate it from your account number.
Read article →Is It Safe to Share Your IBAN? What You Need to Know
Learn when sharing your IBAN is safe, what risks exist, and how to protect yourself from IBAN fraud.
Read article →IBAN vs SWIFT/BIC Code: Key Differences Explained
IBANs and SWIFT codes are both used in international payments, but they serve different purposes. Here's what each identifies and when you need which.
Read article →How IBAN Check Digits Work (MOD-97 Algorithm Explained)
A technical deep dive into the MOD-97-10 check digit algorithm — how it detects transcription errors and why a single digit change invalidates the IBAN.
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