I'm not talking about the GST, which was at 7%, nor the provincial sales tax, which is at a certain rate. I'm talking about a completely restructured tax system under which the greatest proportion of government revenue would be levied through consumption taxes rather than income taxes, as is currently the case.
Such a system does exist in other countries, where the underground cash economy can be fought against, because people do not necessarily avoid paying taxes on their income. When purchasing materials, for example, people have to pay a higher consumption tax. It is a completely different tax regime, that is primarily based on consumption taxes.