Invoicing is the process of issuing a written payment request for goods or services. The basics are the same for sole traders, contractors, and businesses — you need clear details, accurate numbers, and a fast, reliable way to deliver the invoice.
To invoice professionally: 1. Use a free invoice generator like InvoiceSonic or a clean template 2. Add your business name, ABN, and contact details 3. Generate a unique sequential invoice number 4. Add the issue date and the client's name and address 5. Itemise each product or service with description, quantity, and rate 6. Calculate subtotal, GST (if you're registered), and total amount due 7. Set payment terms — Net 14 is the most common 8. Add bank, BPAY, or PayID details for fast payment 9. Save as a PDF and email to the client the same day 10. Follow up 2–3 days before the due date
Invoicing same-day — and following up before the due date — is the single biggest driver of healthy cash flow. Keep every invoice for at least five years to meet ATO record-keeping requirements.
Ready to create your first invoice? Use InvoiceSonic's free invoice generator and get a professional PDF in under 2 minutes.
Create Free Invoice