Net 30 Invoice Template for Australia

A Net 30 Invoice is a commercial document that establishes payment terms requiring your customer to pay the full amount within 30 days of the invoice date. In Australia, this document serves dual purposes: it acts as a tax invoice for GST purposes under the A New Tax System (Goods and Services Tax) Act 1999, and creates legally binding payment obligations between you and your customer.

When do you need this document?

You need a Net 30 Invoice when providing goods or services to business customers who require extended payment terms beyond immediate payment. This is common in business-to-business transactions where customers need time to process payments through their accounts payable departments. The 30-day term balances your cash flow needs with customer payment processing requirements. You'll also need this document when your business turnover exceeds the GST threshold and you must issue compliant tax invoices, or when dealing with large businesses subject to Payment Times Reporting Act requirements.

Key legal considerations

Your Net 30 Invoice must include specific mandatory information to be legally valid as a tax invoice under Australian law. This includes your business name and ABN, the customer's details, a clear description of goods or services, the GST amount (if applicable), and the total price including GST. The payment terms section should clearly state the 30-day payment period, due date calculation, and accepted payment methods. Under the Competition and Consumer Act, payment terms must not be unfair or unconscionable, particularly when dealing with small businesses. Late payment fees or interest charges must be reasonable and clearly disclosed. If you're dealing with large businesses paying small business suppliers, be aware that the Payment Times Reporting Act may affect how payment terms are structured and reported.

Legal requirements in Australia

Australian law requires that tax invoices contain specific elements to be valid for GST purposes. Your invoice must clearly state "Tax Invoice" if GST applies, include your ABN and business name exactly as registered, and show the GST amount separately from the base price. The invoice must be issued within 28 days of supplying the goods or services. Electronic invoices are legally valid under the Electronic Transactions Act, provided they contain all required information and are accessible to the recipient. For businesses with annual turnover above $75,000, GST registration and compliant tax invoicing are mandatory. The Australian Taxation Office requires invoices to be retained for five years, and they must be readily accessible for audit purposes. When setting Net 30 terms with large business customers, ensure compliance with Payment Times Reporting requirements if applicable.