Bank state branch (Ofer Abarbanel online library)

Bank State Branch (often referred to as “BSB“) is the name used in Australia for a bank code, which is a branch identifier. The BSB is normally used in association with the account number system used by each financial institution. The structure of the BSB + account number does not permit for account numbers to be transferable between financial institutions. While similar in structure, the New Zealand and Australian systems are only used in domestic transactions and are incompatible with each other. For international transfers, a SWIFT code is used in addition to the BSB and account number.

The BSB identifier consists of six numerals, the first two or three of which is a bank identifier. The BSB identifier is used for processing of paper and electronic transactions, but not in payment card numbering.

In Australia, the Australian Payments Network (AusPayNet) is now the regulatory body of cheque clearances and of the BSB codes in Australia. AusPayNet assigns the bank code to a financial institution and the financial institution allocates the other digits to its branches, in line with guidelines set by AusPayNet. Some financial institutions have more than one bank identifier, arising from mergers of financial institutions or consolidating by banks of their trading and savings banks operations. As of March 2012, almost 14,300 unique BSB code values were in use.


In Australia, BSB codes are allocated by the Australian Payments Network (AusPayNet). BSB codes are used in a number of payment systems in Australia. To access the various clearance systems a financial institution must have its own BSB or use an intermediary with a BSB.

Paper transactions

Cheques are the least used form of non-cash payment in Australia,[1] but the most by value. Financial institutions are required to include BSB and bank account numbers on cheques, at the bottom of the cheque in MICR form, which identify the specific bank account number to be debited. BSB codes are also used on deposit and other vouchers. Paper transactions are processed under the Australian Paper Clearing System (APCS) (also known as CS1) drawn up by AusPayNet. Account instructions which do not have a BSB code must be processed manually.

Electronic transactions

Electronic fund transfers (EFT) are the most common method of non-cash payment in Australia. EFT transactions between bank accounts use the Direct Entry system. For transfers using the Direct Entry System, BSB and bank account numbers must be given for the accounts to be debited as well as for the account to which funds are to be transferred. Electronic transactions are processed under the Bulk Electronic Clearing System (BECS) (also known as CS2) drawn up by AusPayNet. The requirement for two-sided BSBs is eased in transactions involving payment cards, such as credit cards or debit cards, and in BPAY transactions, in which one side of the transfer is an account which includes the BSB electronically linked to the card and BPAY biller.

International transactions

For incoming international transfers, SWIFT codes are used in addition to the Basic Bank Account Number (BBAN), which comprises a BSB and bank account number. There is no public discussion of the adoption of IBAN identifiers for incoming international transactions. Any process towards IBAN would involve considerable changes to bank software and computer systems, and the requirement for financial institutions to adopt defined length account numbers. Outgoing international transfers must use either the SWIFT or IBAN system in use in the destination country, which would incorporate that country’s format for BBAN.


The BSB is a six-digit code. The format of the BSB code originally was for the first two digits to indicate the “bank” and the other four digits to specify the “branch” of that financial institution, the first digit of which was the state code indicating the state where the branch was located. For example, the Australian BSB code “033088” breaks down to:

  • 03 = Westpac Banking Corporation, historically the trading operation
  • 3 = Victoria
  • 088 = 383 Chapel Street, Prahran

Some of the larger banks had two bank codes, with separate codes for their trading (cheque) and savings bank entities. The first digit of the bank code was either 0 (for trading bank accounts) or 1 (for savings bank accounts), with a common second digit. For example, 03 was for Westpac’s trading accounts, while 73 was for Westpac’s savings accounts. Some banks continue to use two bank codes, which today are of only historic and legacy significance.


Following the introduction in the United Kingdom in the 1960s of a “sort code”, a comparable BSB identifier system was introduced in Australia in the early 1970s to streamline cheque clearance through the banking system in Australia. At the time the clearance systems were open only to financial institutions registered as banks. The BSB and account number was printed on cheques in MICR format to streamline the process of data capture as well as for mechanical sorting and bundling of the physical cheques for forwarding to the payer bank branch for final cheque clearance. Other financial institutions had to use banks as intermediaries to access the clearance of their “payment orders”, which were the non-banking equivalents of cheques.

Since then, the use of BSBs has been extended to electronic transactions, but not in payment card numbering.

With the restructuring of the financial system in Australia, other financial institutions were given direct access to the clearing systems, and the structure of the BSB has had to be modified. While banks generally still follow the traditional state branch structure, building societies and credit unions often do not. This is because many of these institutions use an intermediary; for example, BSBs such as 80xxxx are administered by Cuscal, 579xxx are administered by Australian Settlements Limited, whereas 704xxx is administered by Indue. In these situations, the building society or credit union is identified by the ‘state’ and ‘branch’ components of the BSB whereas the ‘bank’ refers to the intermediary. Depending on the intermediary used, building societies (both current and former) BSBs generally start with 63xxxx and most credit unions BSBs will use either 704xxx or 80xxxx. The state code structure is not always used in these situations. For example, Bendigo Bank started as a building society in Victoria but now uses a single BSB nationally (633-000) while the Queensland-based Heritage Bank, also a former building society, uses 638xxx. Suncorp uses 484-799 for all deposit accounts regardless of which branch or state the account was opened in.

Furthermore, recent changes in Australia’s financial system have allowed larger building societies and credit unions to establish their own BSBs, even if they are using an intermediary. Having their own BSB allows a financial institution to create new products and offer additional services.


List of Australian Bank codes

Number Code Bank Name
01 ANZ Australia and New Zealand Banking Group
03 or 73 WBC Westpac
06 or 76 CBA Commonwealth Bank of Australia
08 or 78 NAB National Australia Bank
09 RBA Reserve Bank of Australia
10 BSA BankSA
11 or 33 STG or SGP St George Bank
12 or 639 BQL or HOM Bank of Queensland; 639 refers to Home Building Society which has since been acquired by Bank of Queensland
14 PIB Rabobank
15 T&C Town & Country Bank; acquired by ANZ
18 MBL Macquarie Bank
19 BOM Bank of Melbourne, previously Advance Bank
21 CMB JPMorgan Chase Bank
22 BNP BNP Paribas
23 BAL Bank of America
24 CTI Citibank
25 BPS BNP Paribas
26 BTA BT Financial Group
28 NMB National Mutual Royal Bank, joint venture between Royal Bank Canada & National Mutual Insurance (sold to ANZ)
29 BOT Bank of Tokyo
30 BWA BankWest
31 MCU Bank Australia
325 BYB Beyond Bank Australia
34 or 985 HBA or HSB HSBC Bank Australia
35 or 980 BOC or BCA Bank of China
40 CST Commonwealth Bank Group, formerly Colonial State Bank, which was previously State Bank of New South Wales
41 DBA Deutsche Bank Australia
42 or 52 TBT Colonial Trust Bank, formerly Trust Bank Tasmania. Now part of CommBank.
45 OCB OCBC Bank
46 ADV Advance Bank (branches in the ACT)
47 CBL Challenge Bank, which has since been acquired by Westpac Banking Corporation
48 or 664 MET or SUN Suncorp Bank; 48 was used by Metway Bank prior to its merger with Suncorp Building Society
510 CAN Citibank NA
512 CFC Community First Credit Union
514 QTM RACQ Bank previously QT Mutual Bank Ltd
517 VOL Volt Bank commenced operations in Australia 2018 (currently has a restricted licence)
527 TBT Trust Bank Tasmania now CommBank
533 BCC Bananacoast Community Credit Union
55 BML Bank of Melbourne (1989), formerly RESI-Statewide Building Society, now part of Westpac Group
57 ASL Australian Settlements, an intermediary used by many organisations including Building Societies
60 SBV State Bank Victoria, prior to merger with CommBank
610 ADL Adelaide Bank
611 SEL Endeavour Mutual Bank Ltd
630 ABS ABS Building Society
632 BAE B & E now trading as Bank of us
633 BBL Bendigo and Adelaide Bank Limited, includes UP Bank (633-123) and Rural Bank (633-111)
634 UFS Uniting Financial Services
637 GBS Greater Bank
638 HBS Heritage Bank
639 HOM Home Building Society (WA) acquired by Bank of Queensland
640 HUM Hume Bank
641 or 647 IMB or AUB IMB Ltd
642 ADC Australian Military Bank, previously Australian Defence Credit Union
645 or 656 MPB or BAY Wide Bay Australia, now Auswide Bank
646 MMB Maitland Mutual Building Soc Ltd
650 NEW Newcastle Permanent Building Society
653 PPB Pioneer Permanent Building Society; since acquired by Bank of Queensland
654 ECU ECU Australia Ltd
655 ROK The Rock Building Society, now part of MyState Bank
656 BAY Auswide Bank Ltd, previously Wide Bay Building Society
657 GBS Greater Bank
659 GCB G&C Mutual Bank Limited prev SGE Credit Union Ltd
670 YOU 86400 Bank commencing operations in Australia in 2018
676 GTW Gateway Bank Ltd previously CBOA Credit Union
70 CUS Indue, an intermediary used by many organisations (particularly credit unions)
704-191 CUS BankFirst previously Victoria Teachers Credit Union & Victoria Teachers Mutual Bank
704-230 CUS BankVic previously Police Association Credit Co Operative or Police Credit & Police Credit Co-Op
704-865 CUS Qudos Bank trading name of Qudos Mutual Ltd, previously Qantas Credit Union & Qantas Staff Credit Union
721 HCC Holiday Coast Credit Union
723 HIC Heritage Isle Credit Union
728 SCU Summerland Credit Union (1 July 2011 728-728)
80 CRU Cuscal, an intermediary used by many organisations (particularly credit unions)
805-050 CUS People’s Choice Credit Union trading name of Australian Central Credit Union
812 TMB Teachers Mutual Bank
813 CAP The Capricornian
814 CUA Credit Union Australia
815 PCU Police Dept Employees Credit Union
817 WCU Warwick Credit Union
818 COM Bank of Communications Co Ltd
819 or 931 IBK or ICB Industrial & Commercial Bank of Australia
833 DBL Defence Bank previously 803-205 Defence Force Credit Union
882 MMP Unity Bank previously Maritime, Mining & Power Credit Union
888 CCB China Construction Bank Corporation| 888
902 APO Australia Post
911 SMB Sumitomo Mitsui Banking Corporation
913 SSB State Street Bank & Trust Company
915 FNC FNC Agency – Bank One, NA
917 ARA Arab Bank Australia
918 MCB Mizuho Corporate Bank
922 UOB United Overseas Bank
923 or 936 ING or GNI ING Bank
931 ICB Mega International Commercial Bank Co
932 NEC New England Credit Union (trading as Regional Australia Bank)
939 AMP AMP Bank
941 BCY Delphi Bank; formerly Bank of Cyprus Australia, since acquired by Bendigo Bank
942 LBA Bank of Sydney previously known as Bank of Beirut, and Beirut Hellenic Bank
943 TBB Taiwan Business Bank
944 MEB ME Bank
951 INV Investec Bank (Australia) now trading as BOQ Specialist
952 RBS Royal Bank of Scotland
969 MSL Tyro Payments
  1. ^“Towards The Digital Economy – Milestones Report – April 2013”. AusPayNet. Retrieved 29 September 2013.

List of State codes

The major banks structure their BSB codes according to States. This is largely historic and have only limited significance in electronic banking. For those who maintain State codes, the State code is the first of the four digit branch field and are:

  • 2 – Australian Capital Territory, New South Wales
  • 3 – Victoria
  • 4 – Queensland
  • 5 – South Australia, Northern Territory
  • 6 – Western Australia
  • 7 – Tasmania
  • 8, 9 – (intermediary)

Ofer Abarbanel online library

Ofer Abarbanel online library

Ofer Abarbanel online library