2024 Bank of Queensland celebrates turning 150 years on 1 September 2024. . 
2021 Acquired 100% of Members Equity Bank Limited, creating a compelling alternative to the big banks and broadly doubling the Retail bank and providing geographical diversification for the BOQ Group. 
2014 Acquired Investec Bank (Australia) Limited (now BOQ Specialist Bank Limited), including the Professional Finance business (now BOQ Specialist) and the Asset Finance & Leasing business (now part of BOQ Finance)
2013 Acquired Virgin Money Australia, the Australian retail financial services arm of the Virgin Group, for approximately $40 million (including approximately $30 million in BOQ shares)
2010  Acquired Australian and New Zealand divisions of CIT Group Inc, a leading supplier of vendor finance to small business and middle market companies 
2010  Purchased St Andrew's Insurance, a leading Australian manufacturer of consumer credit insurance products
2007  Members of Home Building Society in Western Australia endorsed $592 million merger proposal, increasing BOQ's national footprint
2007  Made a successful bid for Mackay-based Pioneer Permanent Building Society
2005  Acquired $78 million debtor finance division of ORIX Australia
2003  Purchased equipment finance company UFJ Finance Australia giving BOQ its first significant interstate presence
2001-2004  Accelerated branch opening program, opening 55 new branches throughout Queensland
1985  Opened its first regional branches in Cairns and Townsville
1982  Incorporated Bank of Queensland Savings Bank Ltd as a wholly owned subsidiary
1971  Became a publicly traded company listed on ASX
1970  Adopted the name Bank of Queensland and computerised operations 
1942  Following mergers with other Queensland-based financial institutions, became a trading bank 
1887  Converted from a building society to a bank
1874  Established as The Brisbane Permanent Benefit Building and Investment Society, the first permanent building society formed in Queensland