Australian GST Calculator

Add GST to a price, remove it, or find the GST component of a GST-inclusive amount. Includes a custom rate, a BAS quarter estimate and a quick reference table.

Calculator

Enter amount (ex-GST)

GST rate %

Calculates the GST-inclusive price by multiplying your amount by 1.10.

BAS Quarter Helper

Quarterly revenue $100.00

GST you owe the ATO $9.09

Net revenue (kept) $90.91

If your input amount is your GST-inclusive quarterly revenue, the GST component above is what you must remit on your BAS. Ensure you are registered for GST if annual turnover exceeds $75,000.

Note: Standard Australian GST rate is 10%. These calculations are estimates for general guidance only. Consult a registered tax agent or accountant for business tax obligations.

Ex-GST (net)

$100.00

GST amount

$10.00

GST inclusive

$110.00

Ex-GST amount

$100.00

GST component

$10.00

GST is 9.09% of the total

Amount split

Ex-GST

GST

$100.00 ex-GST $10.00 GST

Quick Reference Table

Amount	Ex-GST	GST	Inc. GST

GST-Free Items in Australia

These goods and services are exempt from GST under Australian tax law.

Fresh Food

Fruit, veg, meat, bread, milk

Medical

Medicines, health services, hospitals

Education

School fees, TAFE, university

Childcare

Approved childcare services

Exports

Goods and services exported

Residential Rent

Long-term residential leases

Financial Services

Interest, insurance premiums

Precious Metals

Gold, silver (investment grade)