What is GST in Australia?

GST is a 10% broad-based tax on most goods and services in Australia. Businesses with turnover over $75,000 must register and charge GST.

How do I remove GST from a GST-inclusive price?

Divide the GST-inclusive price by 1.10. For example, $110 ÷ 1.10 = $100 base price. Do not simply subtract 10%.

Is GST the same as VAT?

Yes — GST and VAT are the same type of consumption tax. Australia calls it GST (10%), the UK calls it VAT (20%), New Zealand calls it GST (15%).

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GST / VAT Calculator

Add or remove GST / VAT from any amount. Supports Australia (10%), UK (20%), New Zealand (15%), and custom rates. Click any result to copy.

Amount (ex. GST)

Ex. GST

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Base amount

GST (10%)

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Tax amount

Inc. GST
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Total incl. tax

How to use

Pick a mode: Add Tax (start with pre-tax price), Remove Tax (start with the inclusive total), or Tax Amount Only.
Select a country preset (AU 10%, UK 20%, NZ 15%, CA 5%) or click Custom % and enter your own rate.
Type the dollar amount — results update live. Click any result box to copy that value to your clipboard.

FAQ

Divide by 1.10 — never subtract 10%. For example $110 ÷ 1.10 = $100 base price, with $10 GST. Subtracting 10% from $110 gives $99, which is wrong. Use the Remove Tax mode in this calculator to do it correctly.

Yes, functionally they're the same type of consumption tax. Australia, New Zealand, Canada and Singapore call it GST; the UK, Europe and many other countries call it VAT. The rate differs — Australia 10%, NZ 15%, UK 20%.

In Australia, you must register if your annual turnover is $75,000 or more (or $150,000 for non-profits). Below this threshold, registration is optional. Once registered, you must charge 10% GST on invoices, collect it, and remit via your BAS.