To be used for any question on GST [Goods and Services Tax]. The term is predominantly used in Australia and Canada. Typically a Federal [Central Government] tax. Other countries have different terms for this tax. The GST can be used for these as well. In some countries there is a separate Goods Tax and Separate Service tax. In this case this tax should not be used. The similar tax by State [province] is called differently and should not use this tax.