With regard to the government’s projection presented on page 253 of Budget 2017 showing a 4% increase in Goods and Services Tax (GST) revenues from 2016-17 to 2021-22: (a) upon what basis is the government’s projection based; (b) how much of this forecasted increase will result from an increase in the GST rate; and (c) how much of this forecasted increase is the result of provincial carbon taxes, prices and levies?
In the House of Commons on May 8th, 2017. See this statement in context.