IBAN Breakdown
Free online IBAN breakdown tool. Dissect any IBAN into country code, check digits, BBAN, bank code, branch, and account number with ISO 13616 mod-97 checksum validation. Client-side, private, bilingual EN/TH.
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What is IBAN Breakdown?
An IBAN Breakdown tool dissects an International Bank Account Number (ISO 13616) into its constituent fields: the 2-letter country code, the 2-digit mod-97 check digits, and the country-specific BBAN — and, where the national format defines them, the bank code, branch or sort code, and account number. It also validates the checksum so you can trust the structure before using the IBAN for a payment.
Key Benefits
- Instant field breakdown as you type — no submit button
- ISO 13616 mod-97 checksum verification catches typos
- Country-specific BBAN extraction for 70+ countries
- Copy any field individually or the full labelled summary
- 100% client-side — your IBAN never leaves the browser
Common Use Cases
- •Accountants and finance teams verifying vendor IBANs before a SEPA transfer
- •Developers testing payment integration with sample IBANs
- •Support agents explaining to customers what each part of their IBAN means
- •Expats and freelancers double-checking international account details
- •Anyone curious about the structure of a bank identifier they received
How to Break Down an IBAN
- Enter the IBAN: Type or paste the IBAN into the input box. Spaces are ignored and letters are auto-uppercased as you type.
- Read the status cards: Three cards confirm Length (expected for the country), Charset (A-Z, 0-9 only), and Checksum (mod-97) in real time.
- Study the field table: The structure table lists country code, check digits, BBAN, and (where available) bank code, branch/sort code, and account number with their meaning.
- Copy what you need: Click the copy icon next to any field to copy just that value, or use Copy all to grab the full labelled breakdown.
Key Features
- Break down any IBAN into country, check digits, BBAN, and account fields
- ISO 13616 mod-97 checksum validation with pass/fail status
- Country-specific BBAN field extraction for 70+ countries
- Three live status cards: length, charset, and checksum
- Instant feedback as you type, no submit button needed
- Copy any field individually or the full labelled breakdown