Finance Calculators
Australian BSB Validator

Australian BSB Validator

Validate Australian Bank State Branch numbers and parse bank, state, and branch codes with format checks.

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Australian BSB numbers explained

A Bank State Branch (BSB) code is a six-digit identifier used with Australian bank account numbers for domestic transfers. The third digit encodes the state or territory region, while the remaining digits identify the institution and branch.

This tool validates length and reserved state digits, then formats the code as XXX-XXX. It does not query live branch directories; use your bank for authoritative branch names.

Frequently Asked Questions

Is BSB the same as an IBAN?

No. Australian domestic payments use BSB plus account number. International transfers may use an IBAN for other countries, validate those with the IBAN tools on this site.