Commonwealth Bank of Australia said on Tuesday that it would book charges of A$300 million ($216 million) that would be reflected in its first-half results ending December.
The charges include a higher-than-expected compliance cost of A$100 million related to a quasi-judicial inquiry into Australia's financial sector, the bank said in a statement.
The remaining costs are related to a remediation program adopted for its demerged wealth management arm, it added.
Earlier this year, CBA said it would spin off its wealth management and mortgage broking arms into a separately listed new company called CFS Group, inclusive of its Colonial First State Global Asset Management (CFSGAM) business.
CBA, Australia's biggest bank, is due to report first-half results for fiscal 2019 on Feb. 6.
Shares of the lender have been hammered in 2018, on track for their biggest drop in a decade, by damaging revelations at the Royal Commission that it wrongfully withdrew "advice fees" from dead people's accounts and mistakenly double charged interest to thousands of business customers.
A subsidiary of the bank, CommBank Europe, was established in Malta in 2005.