1, file tax jointly as married couples, 无法报FSA
2,file tax separately as married couples,qualified FSA不交税,$6000可以省$1800.
separately 的税率比jointly 高,但不知道高的那部分,是不是少于1800。不过【1】可以拿child credit,估算【2】应该确实不省反而多交。。。要是谁比我更好奇就好了,算一下到底区别是多少