How to Write a Tax Invoice

Writing a tax invoice in Australia means meeting the ATO's specific requirements so your customer can claim a GST input tax credit. Only GST-registered businesses can issue tax invoices.

To write a tax invoice: 1. Clearly label the document "Tax Invoice" at the top 2. Add your business name and ABN 3. Generate a unique sequential invoice number and add today's date 4. Enter the customer's name (and ABN if the sale is $1,000 or more) 5. List each line item with description, quantity, GST-exclusive unit price, and line total 6. Calculate the subtotal and 10% GST on it 7. Show GST separately or state "Total price includes GST" 8. Display the total amount payable 9. Add payment terms — due date and methods 10. Include your bank details, BPAY, or PayID 11. Save as PDF and send to the client

Some sales are GST-free (basic food, health, education) — these can appear on the same tax invoice but with $0 GST. Keep every tax invoice for at least five years. InvoiceSonic's tax invoice template includes every ATO-required field.