BSB number

What is a BSB number?

BSB stands for ‘bank, state, branch’, and is a set of 6 characters that identifies where a bank account is in Australia.

Banks use BSB numbers to identify the bank and branch holding an account. Each branch has its own code, though some banks also have a single, centralized BSB for all their accounts.

You’ll need a BSB to send money from one Australian bank account to another, or to send money to an Australian bank account from overseas.

Format of a BSB number

BSB numbers are usually made up of 6 characters. The first 2 characters identify the bank the BSB is associated with (like Commonwealth Bank). The 3rd character is a number between 2 and 7, representing the state the bank branch is located in (4 represents Queensland, for example). The last 3 characters identify the individual branch.