GST Calculator in Australia

Australia calls the tax Goods and Services Tax (GST). It is a broad-based 10% tax on most goods, services and other items sold or consumed in Australia. The Australian Taxation Office states that GST began on 1 July 2000 and the rate has not changed.

Australia does not use a general reduced GST rate. Some supplies are GST-free, including basic food, exports and most health and education services, while input-taxed sales follow different credit rules.

For a taxable price of A$1,000 before GST, the 10% GST is A$100 and the total is A$1,100. The calculator can add 10% or separate it from a GST-inclusive amount.

It does not decide whether a sale is GST-free or input taxed, test registration or input-tax-credit entitlement, or calculate wine equalisation tax, luxury car tax, customs duty or excise. The result is an orientation aid, not personalised tax advice.

Fiscal content reviewed on 10 July 2026.

• ATO: GST overview, rate and commencement
• ATO: GST-free and input-taxed sales