去年enroll high deductible health plan，所以存了pre-tax的HSA 5650, 然后employer 给我存了1000。 用HRBlock算出来的form 8889里面，为什么line 2是0呢，难道要after tax的才能adjust income吗？

是啊，公司存的没有收税。

w2 box 12 must showed 6650 which included 5650 from you and 1000 from employer. The 5650 was never charged tax on. so you won't get to deduct it either.