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Commonwealth Bank

Commonwealth Bank of Australia, commonly branded CommBank, is one of Australia's Big Four banks, providing retail, business, institutional and wealth-related financial services.

Last updated November 3, 2026

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Overview

Commonwealth Bank, formally Commonwealth Bank of Australia and commonly branded CommBank, is one of Australia's four largest banking groups. It serves consumers, small and medium-sized enterprises, corporations, institutions and government-related customers through retail banking, business banking, institutional banking, payments, funds management, superannuation, insurance, securities trading and related financial services. Its principal domestic banking brand is Commonwealth Bank, while the wider group has included or owned brands and businesses such as Bankwest, ASB Bank in New Zealand, Colonial First State, CommSec and CommInsure. The institution was created by the Australian federal government under the Commonwealth Bank Act 1911. It opened its first branch in Melbourne in 1912 and expanded quickly through state savings-bank acquisitions and an agreement allowing it to operate through post-office agencies. During the twentieth century it combined commercial banking with important public-policy functions. It assumed responsibility for issuing Australian banknotes in 1920 and acquired increasingly broad central-bank powers during the Second World War. Its public role also extended to migrant information services, regional development lending and overseas operations, including branches and agencies in Papua New Guinea and the Pacific. The dual role of central bank and commercial bank became controversial in the 1950s. Legislative changes in 1959 separated monetary and central-bank responsibilities from the commercial activities of the Commonwealth Banking Corporation, leaving the Reserve Bank of Australia with central-bank functions. The commercial organization was subsequently structured around the Commonwealth Trading Bank, Commonwealth Savings Bank and Commonwealth Development Bank. From the 1960s onward, the group diversified into finance, insurance, foreign-exchange dealing, international banking and payment cards. It introduced Bankcard in 1974, becoming an early participant in Australia's modern credit-card market. The bank entered a major restructuring and expansion phase from the late 1980s. It acquired a majority interest in New Zealand's ASB Bank in 1989 and purchased State Bank of Victoria in 1991. The Australian government began privatizing the group through share offers in 1991, 1993 and 1996, making Commonwealth Bank a widely held public company. In 2000 it merged with Colonial Limited, adding Colonial's financial-services operations and increasing its ownership of ASB. The group later expanded in Indonesia, China and India, acquired Bankwest and St Andrew's Insurance from HBOS in 2008, and entered an agreement involving Wizard Home Loans. Commonwealth Bank remains a large, technology-focused Australian financial institution, with digital banking, payments, home lending, deposits, business finance, wealth products and institutional services at the centre of its operating model. Its scale and market position have also made it subject to sustained scrutiny. The 2018 Royal Commission into Misconduct in the Banking, Superannuation and Financial Services Industry identified serious conduct and culture concerns, including charging deceased customers for financial advice and allegations involving fraud, deception and money laundering. In 2018 the bank settled an Australian Securities and Investments Commission case concerning manipulation of the bank bill swap rate. It has additionally faced criticism over fossil-fuel financing and projects affecting the Great Barrier Reef. In 2023 it announced the proposed divestment of PT Bank Commonwealth in Indonesia to Bank OCBC NISP.

History

Commonwealth Bank was established by the Australian federal government under legislation passed in 1911. The bank was designed to undertake both savings and general banking and received a federal government guarantee. It began operations with a Melbourne branch in July 1912, acquired the State Savings Bank of Tasmania later that year and had branches in all six Australian states by 1913. Its head office moved to Sydney in 1916, and the organization also followed Australian administrative and military activity into New Guinea. The institution's public importance increased during the 1920s. In 1920 it assumed responsibility for issuing Australian banknotes from the Treasury and acquired the Queensland Government Savings Bank. The Commonwealth Bank Act 1924 created a board structure intended to place limits on the governor and formalize oversight. During the Great Depression, disagreement between the bank's leadership and the Scullin Labor government over credit expansion and pension policy became a major political issue. In the early 1930s the bank absorbed several state savings-bank operations, including parts of the New South Wales and Western Australian systems. The bank expanded its role during the Second World War, although its Papua New Guinea operations were interrupted by the Japanese advance. Emergency legislation gave it extensive monetary powers, which it used alongside government policy to support wartime and postwar economic activity. After the war it opened many new Australian branches and created a migrant information service. Its overseas network included the Solomon Islands and numerous Papua New Guinea locations serving trade, government and local communities. By the late 1950s, the combination of central-bank authority and commercial banking had become politically and institutionally difficult to sustain. Reforms in 1959 transferred central-bank functions to the newly created Reserve Bank of Australia. Commonwealth's remaining commercial operations were organized through the Commonwealth Trading Bank, Commonwealth Savings Bank and Commonwealth Development Bank. The group then diversified. It created or acquired finance and insurance operations, developed international banking and foreign-exchange activities, and introduced Bankcard in 1974. Its Pacific businesses were progressively transferred to local institutions as territories moved toward independence. The modern corporate group emerged through expansion and privatization. Commonwealth acquired 75 percent of ASB Bank in New Zealand in 1989 and purchased State Bank of Victoria in 1991. The federal government listed the bank on the Australian Stock Exchange in September 1991 and sold further stakes in 1993 and 1996. The 2000 merger with Colonial Limited broadened the group into wealth management and insurance and brought additional regional banking interests. Commonwealth subsequently expanded its Asian presence, acquired the remaining ASB interest, purchased Bankwest and St Andrew's Insurance in 2008, and participated in the Wizard Home Loans transaction. In the twenty-first century the group consolidated its position as a major Australian retail and institutional bank while investing heavily in electronic and mobile banking, payments, data systems and customer-facing technology. Its size brought persistent regulatory, social and environmental scrutiny. The 2018 royal commission exposed serious customer-treatment and governance issues, while the bank also reached a regulatory settlement over bank bill swap rate manipulation. Campaigners criticized its financing of coal and gas projects connected with the Great Barrier Reef. In 2023 Commonwealth announced the divestment of its Indonesian subsidiary to Bank OCBC NISP. The group continues to operate as a listed Australian banking company under the Commonwealth Bank and related business brands.

  • 2023

    Indonesian subsidiary divestment announced

    [1]

    Commonwealth announced the proposed sale of PT Bank Commonwealth to Bank OCBC NISP.

  • 2018

    Royal Commission scrutiny

    [1]

    The banking royal commission documented misconduct and culture concerns involving the group.

  • 2017

    Insurance transaction with AIA announced

    [6]

    CBA announced the proposed sale of specified Australian and New Zealand life-insurance businesses to AIA with associated distribution partnerships.

  • 2016

    Twenty-five years as an ASX-listed company

    [5]

    The bank marked twenty-five years since its first public listing.

  • 2008

    Bankwest acquisition announced

    [1]

    Commonwealth announced the acquisition of Bankwest and St Andrew's Insurance from HBOS.

  • 2000

    Colonial merger completed

    [1]

    CBA completed its merger with Colonial Limited, adding banking, life-insurance and funds-management operations.

  • 2000

    Full ownership of ASB

    [4]

    The group acquired the remaining minority interest in ASB Bank.

  • 1997

    Privatisation completed

    [3]

    The staged sale of the government's remaining ownership was completed, leaving Commonwealth Bank as a publicly held company.

  • 1991

    Listed and expands through State Bank of Victoria

    [1]

    The bank was listed on the Australian Stock Exchange and acquired the failing State Bank of Victoria.

  • 1991

    First public share offer

    [4]

    The Australian government began the bank's privatisation with a public share offering and its ASX listing.

Products and positioning

A large, mainstream Australian bank positioned around national scale, broad financial-service coverage, digital convenience and long-standing consumer and business relationships.

  • Retail banking

    CommBank retail banking

    The core consumer business offers everyday transaction accounts, savings, deposits, home loans, personal lending, credit cards, payments and digital banking. The brand serves customers through branches, ATMs, telephone channels and online and mobile platforms.

  • Commercial and institutional banking

    Business and institutional banking

    These businesses provide lending, deposits, cash management, payments, trade finance, foreign exchange, capital-markets access and other services to small businesses, corporations, government bodies and institutional clients. Services for small businesses and larger commercial customers include business accounts, lending, cash-flow facilities, payment acceptance, transaction services and financial guidance. The division supports businesses through digital channels, relationship managers and specialist payment infrastructure. Banking and markets services for corporations, governments, financial institutions and other large organisations. Activities include transaction banking, lending, payments, risk management and selected international financial services.

  • Securities broking

    CommSec

    An investment-services brand associated with Commonwealth Bank, providing retail investors with access to Australian share trading and related market information and investment tools.

  • Banking · 2008

    Bankwest

    Bankwest became part of Commonwealth Bank through the 2008 acquisition from HBOS. It has operated as a related Australian banking brand, particularly associated with consumer and home-lending services.

  • Funds management and superannuation · 2000

    Colonial First State

    Colonial First State represents the group's wealth-management heritage following the Colonial merger and has been associated with managed investments, superannuation and related financial products.

  • Credit card · 1974

    Bankcard

    Bankcard was an early Australian credit-card product established by Commonwealth Bank in 1974. It helped introduce revolving consumer credit and card payments to the Australian market before the later expansion of MasterCard and Visa products.

  • Retail banking

    Personal banking

    Everyday banking for consumers, including transaction accounts, savings products, debit and credit cards, digital payments, online banking and access through branches and ATMs. The proposition is designed to cover routine money management as well as longer-term borrowing and saving needs.

  • Residential lending

    Home loans

    Residential mortgage products for home buyers, refinancers and property owners. Home lending has historically been one of CBA's central consumer businesses and is supported through digital applications, broker channels, relationship services and repayment-management tools.

  • Digital banking

    CommBank app

    The bank's mobile-banking platform provides account servicing, transfers, payments, notifications, card controls and financial-management features. It is a major part of CommBank's strategy to combine large-bank infrastructure with app-based customer engagement and security tools.

Controversies

  • 2020

    ASIC starts proceedings over alleged conflicted remuneration

    The Australian Securities and Investments Commission started civil penalty proceedings against Commonwealth Bank of Australia and Colonial First State Investments Limited. ASIC alleges that CFSIL paid CBA more than A$22 million in conflicted remuneration in connection with the distribution of Essential Super. The allegations are presented as claims by the regulator, not as a court determination.

  • 2020

    Australian court fines CBA $5 million over customer overcharging

    The Federal Court ordered the Commonwealth Bank of Australia to pay a $5 million penalty over failures involving AgriAdvantage packages, which led to customers being overcharged fees and interest and underpaid interest on savings. The court accepted that the conduct was not deliberate.

  • 2019

    CDPP proceedings against CommInsure

    The source reports CDPP proceedings against CommInsure concerning alleged contraventions related to telephone sales of simple life insurance products by CMLA. The source does not state when the proceedings began or report a determination.

  • 2018

    Royal Commission misconduct findings

    The Royal Commission into Misconduct in the Banking, Superannuation and Financial Services Industry examined Commonwealth Bank conduct, including fees charged to deceased customers for financial advice and allegations involving fraud, deception and money laundering. The proceedings contributed to wider criticism of the bank's governance and internal culture.

  • 2018

    Bank bill swap rate manipulation case

    Commonwealth Bank settled an ASIC case for A$25 million and admitted unconscionable conduct relating to manipulation of the bank bill swap rate on five occasions between February and June 2012.

  • 2013

    Environmental financing controversy

    Market Forces and other campaigners criticized Commonwealth Bank for financing coal and gas activity associated with the Great Barrier Reef, arguing that the bank's lending conflicted with environmental commitments.

  • 2004

    Misleading Cricket Home Loan advertising

    The Federal Court declared that television and branch advertising for a home-loan promotion was misleading. The campaign prominently claimed that no establishment fee was payable, while eligibility depended on customers holding or obtaining additional banking products. The ruling found that the important qualification was not communicated clearly enough to correct the headline impression.

Read more

Marketing campaigns

  • 2015Climate and Great Barrier Reef financing campaign

    Australia · United Kingdom · United States

    Environmental campaigners protested Commonwealth Bank's lending to fossil-fuel projects linked to the Great Barrier Reef and reworked branch advertising with references to coal financing. The campaign followed reports alleging that the bank was a significant lender to projects in or affecting the reef region.

    Outcome. The protests intensified public scrutiny of the bank's environmental-finance policies; a definitive campaign outcome is not stated in the reference material.

  • 2008Determined to be different

    Australia

    A humorous mockumentary campaign portrayed an American advertising agency developing an exaggeratedly Australian concept for Commonwealth Bank. The creative approach used parody and behind-the-scenes industry humour.

    Outcome. The campaign gave CommBank a deliberately self-aware advertising voice and became a notable departure from conventional bank advertising.

  • 2006Every day's a new day

    Australia

    CBA replaced the long-running 'Which bank?' platform with a campaign presenting the bank as more attentive to customers and focused on improving its service.

    Outcome. The campaign represented a major repositioning of the bank's advertising and a change in its central brand line.

Brand decisions

  • 2023

    Divest PT Bank CommonwealthM&A

    Background

    Commonwealth reviewed its international portfolio and announced the divestment of its Indonesian banking subsidiary.

    Action taken

    The bank announced the sale of PT Bank Commonwealth to Bank OCBC NISP.

    Aftermath

    The reference material records the announcement but does not establish the final completion date or transaction value.

  • 2017

    Sell specified life-insurance businesses to AIAM&A

    Background

    CBA sought to simplify its portfolio while retaining the ability to distribute insurance products to customers.

    Action taken

    The group agreed to sell its Australian life-insurance business and New Zealand life and health insurance businesses to AIA and proposed long-term bancassurance distribution arrangements.

    Aftermath

    The transaction shifted the group away from direct insurance manufacturing in these areas while preserving a bank-distribution relationship.

    Gross proposed transaction consideration. A$3.8 billion (2017 announcement)

  • 2008

    Acquire Bankwest and St Andrew's InsuranceM&A

    Background

    The transaction followed the global financial crisis and HBOS's decision to sell the Australian businesses. The acquisition was pursued during a period of financial-market disruption and was intended to expand CBA's domestic lending and insurance presence.

    Action taken

    Commonwealth announced an acquisition valued at approximately A$2.1 billion, subject to regulatory approval. CBA announced an agreement to acquire Bankwest and St Andrew's Australia from HBOS, subject to regulatory approval.

    Aftermath

    Bankwest and St Andrew's Insurance became part of Commonwealth's Australian financial-services portfolio. The transaction expanded CBA's presence in Western Australian banking and added Bankwest's lending portfolio to the group.

    Announced acquisition value. A$2.1 billion (2008 announcement)

  • 2000

    Merge with Colonial LimitedM&A

    Background

    CBA sought to broaden its financial-services platform beyond traditional banking into insurance and funds management.

    Action taken

    Commonwealth Bank merged with Colonial Limited after the transaction received regulatory and court approval.

    Aftermath

    The group gained Colonial's banking, life-insurance and funds-management operations and strengthened its wealth-related business.

  • 1991

    Begin privatisationStrategy

    Background

    The government-owned bank required a new ownership and capital structure as Australia's financial system became more commercially competitive.

    Action taken

    The Australian government offered shares to the public and continued the process through further offerings during the 1990s.

    Aftermath

    Privatisation was completed in 1997 and Commonwealth Bank became a widely held listed company.

Recent events

  • 2023

    Commonwealth Bank announces Indonesian divestment[1]

    M&A

    The group announced the sale of PT Bank Commonwealth to Bank OCBC NISP.

  • 2016

    Commonwealth Bank marks 25 years on the ASX[5]

    Other

    The bank commemorated the twenty-fifth anniversary of its first public listing on the Australian Securities Exchange.

  • 2008

    Commonwealth Bank agrees to acquire Bankwest and St Andrew's Insurance[1]

    M&A

    The group announced a purchase of the two HBOS businesses for approximately A$2.1 billion, subject to regulatory approval.

  • 2000

    Commonwealth Bank and Colonial complete their merger[1]

    M&A

    The merger added Colonial's financial-services businesses and strengthened Commonwealth Bank's regional and wealth-management activities.

  • 1996

    Commonwealth Bank is fully privatized[1]

    Other

    The Australian government completed the staged sale of its remaining Commonwealth Bank shares, ending government ownership.

  • 1991

    Commonwealth Bank begins staged privatisation[4]

    Other

    The Australian government began selling Commonwealth Bank shares to the public, starting the process that ultimately converted the institution into a widely held listed company.

Sources38 sources

  1. 1Commonwealth Banken.wikipedia.org
  2. 2CommBank official websitecommbank.com.au
  3. 3Commonwealth Bank history referenceen.wikipedia.org
  4. 4Commonwealth Bank corporate profile and privatisation historyirasia.com
  5. 5CBA marks 25 years on the ASXcommbank.com.au
  6. 6AIA proposed acquisition of CBA life-insurance businessesaia.gcs-web.com
  7. 7ACCC: Commonwealth Bank found to have misled consumersaccc.gov.au
  8. 8Every day's a new day campaignafr.com
  9. 9Commonwealth Bank Down Under campaignpostkiwi.com
  10. 10CDPP proceedings against CommInsuresg.news.yahoo.com
  11. 11ASIC starts proceedings over alleged conflicted remunerationinternational-adviser.com
  12. 12ASIC starts proceedings over alleged conflicted remunerationbusinesstimes.com.sg
  13. 13ASIC starts proceedings over alleged conflicted remunerationmiragenews.com
  14. 14ASIC starts proceedings over alleged conflicted remunerationbrisbanetimes.com.au
  15. 15ASIC starts proceedings over alleged conflicted remunerationafr.com
  16. 16ASIC starts proceedings over alleged conflicted remunerationafr.com
  17. 17ASIC starts proceedings over alleged conflicted remunerationdailymail.com
  18. 18ASIC starts proceedings over alleged conflicted remunerationmiragenews.com
  19. 19Australian court fines CBA $5 million over customer overchargingnine.com.au
  20. 20ASIC sues CBA over monthly access fees - Money Managementmoneymanagement.com.au
  21. 21ASIC sues Commonwealth Bank for misleading conduct over monthly feesnine.com.au
  22. 22CBA announces partnerships for new digital services - Money Managementmoneymanagement.com.au
  23. 23CBA collaborates with Queensland Government to offer contactless payments to Gold Coast commutersmiragenews.com
  24. 24CBA cuts Klarna merchant fees to catch Afterpay and Zipafr.com
  25. 25CBA enters partnership with Xpansiv to develop Australia's voluntary carbon marketmiragenews.com
  26. 26CBA launches no-fee BNPL product to help small businesses competebrokernews.com.au
  27. 27CBA partners with Celsus in landmark issue of Australia's first sustainability loanmiragenews.com
  28. 28CBA partners with e-commerce platform BigCommerceitnews.com.au
  29. 29CBA partners with NSW Health to provide increased translation support for Covid support linemiragenews.com
  30. 30CBA sells insurance unit in $1b dealafr.com
  31. 31CBA sued over ‘$45m worth’ of untaken tea breaksafr.com
  32. 32CBA Unveils PaidIt to Simplify Organizational Payoutsmiragenews.com
  33. 33CommBank partners with Kartamiragenews.com
  34. 34Commonwealth Bank suffers a major outagedailymail.com
  35. 35Commonwealth Bank suffers fourth outage in less than a monthdailymail.com
  36. 36KPMG partners with CBA in venture building entity launchaccountantsdaily.com.au
  37. 37Ora Banda Mining signs A$15 million credit approved offer with Commonwealth Bank and appoints Peter Nicolson as new CEOproactiveinvestors.com.au
  38. 38Westpac partners with G8 Education on a childcare industry first A$350M Sustainability linked loanmiragenews.com

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