To set up a default tax or GST on your webshop simply follow the steps below.
Set your currency and rates settings.
Default currency symbol - Select the currency symbol from the drop down list. If it is not in the list, select Other and enter the symbol in the field.
Default currency code - Enter the three-letter code for your currency. For Australia use AUD and New Zealand use NZD. For a compete list of currency codes, check out this article.
Default country code - The default ISO two character country code of your website. For Australia use AU and New Zealand use NZ. For a compete list of country codes, check out this article.
Default suburb selector country - The ISO country code of the default country used in the suburb selector. For a compete list of country codes, check out this article.
Default tax setting for cpanel - Use tax included pricing by default in the control panel.
Default tax setting for website - Use tax included pricing in store front and on all invoices.
Default tax rate - Your default tax rate for goods and services.
Countries included in default tax zone - A list of countries that will be charged your default tax rate. Unselected countries that are will not be charged tax.