# GST Calculator Australia

> Free Australian GST Calculator. Instantly add or remove 10% GST, calculate invoices, estimate your BAS, and check registration thresholds — based on current ATO rates.

## Pages

- [GST Calculator](https://www.gstcalculate.com.au): Interactive calculator to add or remove 10% GST, calculate invoices, estimate BAS, and check registration thresholds for the 2026–27 financial year.
- [How to Calculate GST Australia](https://www.gstcalculate.com.au/guides/how-to-calculate-gst-australia): Step-by-step formulas and worked examples for adding and removing GST.
- [GST-Free Items Australia](https://www.gstcalculate.com.au/guides/gst-free-items-australia): Complete list of goods and services exempt from the 10% GST.
- [GST Registration Threshold Australia](https://www.gstcalculate.com.au/guides/gst-registration-threshold-australia): The $75,000 turnover rule and when you must register for GST.

## Publisher

GST Calculator Australia is published by MoneyToolkit, an independent Australian publisher of practical financial calculators and guides.

- [About](https://www.gstcalculate.com.au/about)
- [Methodology](https://www.gstcalculate.com.au/methodology)
- [Editorial Policy](https://www.gstcalculate.com.au/editorial-policy)
- [Corrections Policy](https://www.gstcalculate.com.au/corrections)
- [Contact](https://www.gstcalculate.com.au/contact)

Figures are estimates based on published rules and the documented methodology. They do not constitute personal financial, tax, accounting, or legal advice.

Contact: contact@gstcalculate.com.au