A Bank State Branch Number (BSB) is a number that identifies the bank branch that holds your account. The BSB number is equivalent to a routing number in the United States. The BSB number is a hyphenated, six digit number. For example, the BSB for Bank of Queensland accounts is 124-001. Banks use the BSB to ensure that deposits and transactions are routed to the correct bank and account number.
Look for the BSB number on your bank statement. The number is usually found in the top right corner of the statement, above your account number.
Look at the numbers at the bottom of your checks. The first group of numbers is your account number; the second group of numbers is the BSB number. You can also find the BSB in the same location on deposit slips.
Call your bank and ask for the BSB number.
You can also try checking your bank's website: many banks will post their BSB information online.