英文的意思是继承时为150k. It was worth 150k at the time (when he inherited the moderately sized home) and has increased in value to 165k (a 10% increase during the period). 所以我认为是应该计算capital gain tax的
之所以会出现Capital gain说是因为实现了capital gain,这里只是当时价格涨了,又没有卖出,无需考虑Capital gain tax