Ms. Amanda Riddell (Director, Real Property and Financial Institutions, Sales Tax Division, Tax Policy Branch, Department of Finance) at the Finance Committee

The GST or HST would apply to the whole amount, the assignment sale amount. For example, if the original price that the builder was charging was $400,000, GST or HST would be collected when that closes. Then, on the assignment sale, for $100,000, let's say, it would apply on that as well.