Thanks for your link. but I think you just want to say

来源: 2014-08-22 07:49:31 [博客] [旧帖] [给我悄悄话] 本文已被阅读:
"If you use it less than 2 ( not 5) years as primary home in the past 5 years, the TAX deduction amount will be prorated." right?