1.发现state tax的表忘了附fed tax表的复印件了，可以再寄一封完整的复印件吗？

===is it required? I never attach fed return with state return.

2.bf居然没有做去年的state tax，今年补做去年的行不行啊？不知道会不会有什么坏的影响啊。。。

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check state regulation. if he owes money, he might need to pay penalty