Accounting guide

Professional invoice format

The essential fields to include when preparing an invoice for a client.

Essential invoice details

Include your business name and address, customer details, invoice number, invoice date, payment due date and a clear itemised list of goods or services.

Item table

For each item, show description, quantity, unit rate, discount if applicable and line total. Add subtotal, applicable tax, total payable and payment instructions.

GST information

If GST applies to your business or transaction, include the required GST details and applicable tax split. Requirements can vary, so confirm compliance with a qualified tax professional.

Calculate tax clearly

Use the GST Calculator to check GST-inclusive or GST-exclusive amounts before preparing an invoice.