Australia GST Calculator

Australia's standard GST rate is 10%. Use this free calculator to add it to a price — or strip it out of a total that already includes it — instantly, with no signup. The GST is a flat 10%. Fresh food, medical care and education are GST-free.

Australia GST Calculator

Results update live as you type. Amounts in AUD. Nothing leaves your browser.

Your Numbers

What do you want to do?

Amount (before tax)

Tax rate %

Common rates

“Add tax” starts from a net price. “Remove tax” works backwards from a total that already includes tax. This is the STANDARD rate in Australia — reduced rates, zero-rating and exemptions may apply to specific items. If you know a different rate applies to your item, type it into the rate field.

Your result

0.00

total including tax

Net amount (before tax)0.00

Tax amount0.00

Gross amount (with tax)0.00

Add this to a free invoice →

Standard rate verified October 2026 · Source: VATupdate — Global VAT rates by country, July 2026

How to calculate Australia GST in 3 steps

Enter your amount. Type the price you are working with — either before tax or tax-inclusive, depending on what you have.
Pick the rate and direction. The 10% standard rate is pre-filled and editable; choose “Add tax” or “Remove tax”.
Read the split instantly. You get the net amount, the exact tax, and the gross total — ready to quote, invoice, or check a receipt against.

Why getting the Australia split right matters

Whether you are a seller working out what to charge or a buyer checking a receipt, the split matters: net, tax, total. Get any one of them wrong and either you absorb the tax or your customer disputes the invoice. This calculator shows all three instantly, in your country's currency.

See all 61 countries →

Australia GST FAQ

The standard rate is 10%. The GST is a flat 10%. Fresh food, medical care and education are GST-free.

Multiply the net price by the rate and add it on: a A$100.00 item at 10% gives A$10.00 of tax and a A$110.00 total. In the calculator, choose “Add tax”, enter the amount and rate, and the split appears instantly.

Divide the gross total by (1 + rate ÷ 100). At 10%, a A$100.00 total divides to a A$90.91 net — the tax inside it is A$9.09. Choose “Remove tax” in the calculator and it does this for you.

No. Most GST systems zero-rate exports and exempt or reduce essentials such as food, medicine or education — but which items qualify differs by country, so check the local rules for your item. The calculator uses the standard rate; type a different rate if your item qualifies for another.

Yes — unlimited calculations, no signup, no watermark. Everything runs in your browser; nothing you type is uploaded anywhere.

Use the free invoice generator: add your items, choose flat tax, per-line tax or GST mode, and the tax is calculated and shown on the invoice automatically — ready to download as a PDF.

Australia GST Calculator