I couldn't E file my state taxes, so I had to mail in the documents, but I accidentally gave my 2018 w2 instead of my 2019. Can I just send in my 2019 w2 or do I need to include those documents again?
I recommend contacting the Mass DOR and asking for guidance on how to proceed. Here's their contact info: (617) 887-6367 or (800) 392-6089.
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