A variation of this taxation proposal exists and has been at work for several years in Ontario. While it is not a 100% taxation on the rise in value of the prop

A variation of this taxation proposal exists and has been at work for several years in Ontario. While it is not a 100% taxation on the rise in value of the property, it is indexed to ~2% (for anything above $400,000) of the sale value. It's called the Land Transfer Tax: http://www.fin.gov.on.ca/en/tax/ltt/ http://www.fin.gov.on.ca/en/tax/ltt/