There are is no minimum amount you can transfer to or from your International Wallet, as long as there are funds available.
Keep a buffer of funds in your International Shares Account if you have open positions or have recently traded.
If you have any questions or require further assistance, please contact our International Desk on 1300 361 170 or +61 2 9115 1531 if calling from outside Australia (open 24 hours, U.S. trading days).