Adding and removing GST
GST in Australia is a flat 10%. To add GST, multiply the net price by 1.1. To remove it from a GST-inclusive price, divide by 1.1 — the difference is the GST component. Some essentials (basic food, health, education) are GST-free.
Common questions
GST is a flat 10% on most goods and services. Some items like basic food, health and education are GST-free.
Divide the GST-inclusive price by 1.1. The difference between the two is the GST component.
Businesses registered for GST, which is mandatory once turnover reaches $75,000 a year ($150,000 for non-profits).