Tax invoices for purchases of less than $1,000 must include enough information to clearly determine the following seven details:
- document is intended to be a tax invoice
- seller's identity
- seller's Australian business number (ABN)
- date the invoice was issued
- brief description of the items sold, including the quantity (if applicable) and the price
- GST amount (if any) payable – this can be shown separately or, if the GST amount is exactly one-eleventh of the total price, as a statement which says 'Total price includes GST'
- extent to which each sale on the invoice is a taxable sale.