How to get an australian tax invoice

Hi, and welcome to the Apple Community. 🇦🇮

Sounds like you have made a purchase already ? or are still intending to. ?

Wondering if you gave your ABN details to the merchant when you made the purchase ?

Seems your GST registration details would be needed in order for them to issue an Australian tax invoice.

Try contacting the Australian Apple store in your state, or the website, or wherever you made / make the purchase.

Generally, Apple offer to eMail a receipt when you make a purchase.

You might want to search eMails for messages from Apple ... you may already have the tax details on a receipt.

or Check the packaging, if you still have it ... some of us keep the paper-receipt with the box ...

You would likely need to produce a receipt in order to have a tax invoice issued now, if the purchase has been made.

You might want to investigate ATO,s recipient-created tax invoices, if applicable:

https://www.ato.gov.au/Forms/Recipient-created-tax-invoices/

If needed:

Contact Apple's Billing Support Team.

There is a "Get Support" link at the bottom of their webpage (link below)

Subscriptions and Billing - Official Apple Support

All the best :-)