Commonwealth Bank has filed its response to allegations of breaches of anti-money-laundering and counter-terrorism financing laws made by the Australian government’s financial intelligence unit.

Civil proceedings were launched by Austrac in the federal court in August. The bank’s response includes an admission that it was late in filing more than 53,500 reports of transactions of $10,000 or more through its deposit-taking ATMs between 2012 and 2015.

CBA said those reports were late due to one systems-related error, and will argue those contraventions should be treated as one course of conduct.