When you print your federal and state returns to mail in, instructions
will print with them as well. Generally you mail your federal return, a
copy of your tax documents that had tax withholding, and the payment
with the payment voucher if you owe anything. For your state, you mail
your state and a copy of your federal return together along a copy of
your tax documents that had tax withholding, and the payment and payment
voucher if you have one.
