You should take this debt seriously and proactively engage with the Australian Taxation Office (ATO) to discuss payment arrangement possibilities. The interest charges and penalties add up very quickly so time is of the essence. Meanwhile, contact your solicitor and the company’s accountant for advice as soon as possible because, in addition to the above, the ATO may issue a creditor’s statutory demand. A statutory demand has strict time restrictions and may allow the ATO to wind up your company if it cannot be complied with or set aside in court.
You may be at risk of personal liability through director penalty notices issued by the ATO which have time restrictions. You may be liable for various things you did or did not do before your company was placed into liquidation if the ATO successfully winds it up and a liquidator is appointed.