A sole trader invoice is a bill you send to a client for goods or services provided. As a sole trader in Australia, your invoice is how you request payment and create a record for BAS and tax purposes. New to invoicing? Read our complete step-by-step guide to invoicing as a sole trader in Australia.
Whether you can call it a "tax invoice" depends entirely on your GST registration - not on how much you charge. If you're registered (turnover over A$75,000/year), it becomes a tax invoice and must include your ABN and the GST amount. If you're not registered, it stays a plain invoice - you must not use the words "Tax Invoice" and must not show a GST amount, no matter how large the sale.
Pro Tip: Get every field right the first time - check the 2026 ATO tax invoice checklist before you send.
Quick Tip
Even if you're not GST registered, keeping proper invoices helps you track income and prepare for tax time - and putting your ABN on every invoice means a business client has no reason to withhold tax from your payment.
Skipped GST-registered vs not-registered on purpose here - the full side-by-side comparison (title wording, ABN, GST line, who can claim it back) lives in the step-by-step invoicing guide. No ABN yet? A client paying more than A$75 (excl. GST) to a business without a quoted ABN is generally required to withhold 47% - see the ABN invoicing guide for the full rule and exceptions.
Invio handles GST calculations, ABN details, and BSB payment fields automatically - and takes bank transfer or card payments from your Australian clients. Free for up to 5 invoices a month, then A$19/month Pro.
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