The math is pretty simple, and this should be implemented tomorrow. If we look at SF, based on Case-Schiller, there has been 5.7x appreciation since 1987. If

The math is pretty simple, and this should be implemented tomorrow. If we look at SF, based on Case-Schiller, there has been 5.7x appreciation since 1987. If you bought for $200k, your house is now worth $1.14 million, and you have paid $84k in tax total. Under this plan, you could still pay the $84k total over 31 years, and then if you sell for a cool $940k profit, you owe about $116k in deferred taxes, assuming 4% interest.