What documents do I need to mail to New Jersey along with the tax return?

You can find all the information you need in the instructions for your state here:

http://www.state.nj.us/treasury/taxation/pdf/current/1040i.pdf

(see page 14 for mailing instructions)

Each state is different, usually it is just a copy of your W-2 you need to send in with the forms.

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