What will happen to my credit rating?

Credit reporting agencies will likely obtain record of bankruptcy.

It's worth considering the credit rating status before a bankruptcy appointment, it may be currently in a less than optimal or poor state.

Bankruptcy is a legal process intended to help rehabilitate, rather than punish.

For business-related tax debt, the Australian Taxation Office (ATO) can choose to disclose your debt information to credit reporting bureaus/agencies. This subject to certain business and debt criteria, and whether if already engaged with the ATO to manage tax debts.