Invoicing Best Practices for Australian Small Businesses

Last updated: 29 May 2026

To get paid faster, send your invoices immediately upon project completion, clearly state your payment terms (like "Net 14"), and offer multiple easy ways for the client to pay. Implementing a systematic, professional billing approach is essential to improving your cash flow and reducing administrative headaches.

Here are the essential invoicing best practices every business owner should implement.

1. Make it a Valid "Tax Invoice"

If your business is registered for GST, your document must explicitly say "Tax Invoice" at the top. If you are not registered for GST, it should just say "Invoice."

To be a valid Tax Invoice under ATO rules (for sales under $1,000), it must include:

• The words "Tax Invoice"
• Your identity (business name) and ABN
• The date the invoice was issued
• A brief description of the items sold, including quantity and price
• The GST amount (if any) payable – this can be shown separately or, if the GST amount is exactly one-eleventh of the total price, a statement such as 'Total price includes GST'
• The extent to which each sale on the invoice is a taxable sale (i.e. if some items include GST and some don't, you must make this clear).

For a full breakdown of ATO requirements, you can check the official ATO website.

2. Set Clear Payment Terms

"Net 30" used to be the industry standard, but in today's digital world, 30 days is a long time to wait for cash flow.

• Be specific: Instead of writing "Net 14", write "Please pay within 14 days" or explicitly state the due date: "Due: 24 October 2026."
• Shorter terms: Many freelancers are moving to 7-day or even 14-day payment terms to improve cash flow. Make sure you agree on these terms before the work starts.

3. Detail Your Work Clearly

Vague line items like "Design Services - $500" often lead to pushback or disputes. Instead, break your work down clearly so the client knows exactly what they are paying for.

• Instead of: "Landscaping"
• Write: "Front yard landscaping: 4 hours labor, 2 cubic meters of topsoil, 5 native shrubs."

Clear, itemised invoices build trust and reduce the chance of a client questioning the bill.

4. Provide Easy Payment Options

If you want to get paid quickly, make it as frictionless as possible for your client to hand over their money.

• Include your exact BSB and Account Number in a highly visible spot.
• Make sure the account name exactly matches the name you provided to the client.

5. Send Invoices Promptly

Don't wait until the end of the month to send all your invoices. As soon as the job is complete or the milestone is reached, send the invoice while the value of your work is still fresh in the client's mind.

6. Automate Your Follow-Ups

We all hate chasing money. By using software that automatically reminds clients when an invoice is coming due (or is past due), you remove the emotional burden of playing the "bad guy."

Ready to Streamline Your Invoicing?

Instead of building your invoices from scratch in a Word document, use a dedicated tool like Invoice Buddy. We ensure your invoices meet Australian formatting standards automatically, so you can focus on doing the work, not formatting tables.