How Australian GST Works
Registered businesses charge GST on taxable sales and claim credits for GST paid on business purchases, remitting the net difference to the ATO via Business Activity Statements. Consumers ultimately bear the 10% on taxable goods, but many essentials are GST-free (zero-rated) rather than taxable. Because the law uses tax-inclusive display for most retail, mental math is harder — tools that split totals are essential for hospitality staff and small traders.
GST-Free vs Input-Taxed
GST-free supplies (basic food, health, education exports) allow vendors to recover GST on costs even though they do not collect GST from customers. Input-taxed supplies such as residential rent and many financial services do not include GST in the price and block input tax credits, embedding irrecoverable GST in industry cost structures. Getting the category right drives pricing and margin analysis.
Basic Food
Bread, milk, fresh fruit, and uncooked meat are typically GST-free, while soft drinks, confectionery, bakery treats with sugar coatings, and hot takeaway are taxable. The ATO publishes detailed food decision tables because borderline products (e.g., muesli bars vs breakfast cereals) can flip classifications.
Tourist Refund Scheme
Overseas visitors may reclaim GST on goods carried home when purchases exceed TRS thresholds and retailers issue valid tax invoices. Claims occur at the airport before departure; plan extra time for inspection of luxury goods.
Quick GST-inclusive math (divide by 11)
If a price already includes GST, the GST embedded equals gross ÷ 11. Example: A$110 ÷ 11 = A$10 GST, net A$100. Our reverse mode performs the same split automatically for any amount.