The State Bank of South Australia was a bank owned by the Government of South Australia. The bank was formed by the 1984 merger of two other public banks: the Savings Bank of South Australia and the State Bank of South Australia. The bank's collapse in the early 1990s was one of the biggest events in the history of South Australia and continued to affect state finances and politics well into the next century. The remnants of the State Bank were acquired by Advance Bank which itself is now a division of St George Bank and trades in South Australia as the Bank of South Australia or BankSA.