"The banks had not advised any of our members. To the best of our knowledge all, or nearly all digital currency businesses have received letters from their bank, or in many cases banks, advising of the closure of their accounts. This includes at least 17, with 13 of these closed permanently," Tucker told Bitcoin Magazine.

Major Australian banks, including Westpac Banking Corporation and Commonwealth Bank of Australia, have not announced their motivations behind the termination of banking support for bitcoin companies. This incident has attracted the attention of the Australian Competition and Consumer Commission (ACCC) and Senator Matthew Canavan, who sees the sudden pronouncement of the bank as an unlawful act, and has requested the ACCC to launch a full investigation on the banks.

"Whilst we're unable to comment on the banks' motivations (that is for them to explain) however, the consequences of these moves are becoming more clear. The Australian Bitcoin industry, as part of a larger revolution in financial technology, has seen its growth severely curtailed by this unexplained wave of debanking," Tucker added.

Startups Begin to Leave Australia

"Unfortunately most digital currency startups have already shut their doors in Australia as no alternative banking solutions were available. In at least one case, one Bitcoin company, Coinjar, did relocate its head office to a more welcoming market in the U.K.," Tucker told Bitcoin Magazine.