It's called Goods and Services Tax (GST) in Canada. There was confusion when it was first implemented over what was or wasn't taxed. For example a muffin wouldn

It's called Goods and Services Tax (GST) in Canada. There was confusion when it was first implemented over what was or wasn't taxed. For example a muffin wouldn't be taxed but that same muffin if heated would be taxed. My province was really raking it in. We paid a 10% provincial ("state") tax and then the GST on top of that tax. Yes a tax on a tax.