Practical guides on bank numbers, international transfers, and how to use BankCheck.
Learn where to find your IBAN on bank statements, online banking, and mobile apps. Understand the IBAN structure and validate it instantly.
Understand the difference between IBAN and SWIFT/BIC codes, when to use each, and how they work together for international transfers.
Everything you need to know about US routing numbers: the 9-digit structure, ABA vs ACH, where to find yours, and how to validate it.
A practical guide to international bank transfers: IBAN, SWIFT codes, fees, timelines, and tips to avoid common mistakes.
Compare sort codes, routing numbers, and IBANs side by side. Learn which format is used in your country and when each is required.
A complete guide to the International Bank Account Number: its purpose, structure, history, and which countries use the IBAN system.
Reference table showing IBAN length and format for major countries including Germany, UK, France, Spain, Italy, Netherlands, and more.
Comprehensive list of 80+ countries that use the IBAN system, organized by region: Europe, Middle East, Africa, and the Americas.
Step-by-step guide to the MOD-97 algorithm used to calculate and verify IBAN check digits, with a worked example.
Visual guide to locating the routing number, account number, and check number on the bottom of a US personal check.
Learn why some US banks have separate routing numbers for ACH and wire transfers, the key differences, and how to find the right one.
All 12 Federal Reserve districts, what the first two digits of a US routing number mean, and how the district system works.
Everything about UK sort codes: the 6-digit structure, how they identify banks and branches, and how they relate to IBANs.
Where to find your UK sort code: on your debit card, bank statement, online banking, mobile app, and chequebook.
Single Euro Payments Area explained: how SEPA works, payment types (SCT, SCT Inst, SDD), coverage, and how it compares to SWIFT.
Typical timelines for SEPA, SWIFT wire, US domestic wire, and UK Faster Payments. Learn what affects transfer speed.
Practical checklist for verifying IBANs, routing numbers, and sort codes before sending a bank transfer to avoid costly errors.
Everything about SWIFT/BIC codes: ISO 9362 standard, 8 vs 11 character structure, how the SWIFT network works, and how to find your code.
Understand the difference between BIC, SWIFT, and IBAN codes: what each identifies, when you need which, and how they work together.
Step-by-step guide to IBAN generation: selecting the country, entering bank and account codes, computing MOD-97 check digits, and using a generator tool.
Deep dive into the IBAN validation algorithm: the 4-step MOD-97 verification process, letter-to-number conversion, worked examples, and implementation guidance.
Everything about SEPA: SCT, SDD, SCT Inst payment types, full country list, how SEPA differs from SWIFT, fees, timelines, and step-by-step instructions.
Developer guide to validating IBANs, routing numbers, and sort codes programmatically: free API examples, MOD-97 in JavaScript, ABA checksums, and testing.
Complete checklist for international wire transfers: recipient details, IBAN, SWIFT code, bank address, fees, timelines, and what to do if a transfer fails.
Overview of global banking number systems: IBAN, US routing numbers, UK sort codes, SWIFT/BIC, India IFSC, Canada transit numbers, Australia BSB, and more.