@h-brand BTW, why are you mailing?
If you want to efile, you may still be able to do so when the forms update.. However there is a 19.99 (or 24.99) state efile fee. Maybe you are mailing the return to avoid that fee.
In order to efile a state return, it must be efiled at the same time as the Federal, OR after the Federal return has been accepted. If your Federal return was previously efiled and has been accepted, you should be able to efile the Wisconsin state return, unless there is some other issue. Or unless you do prefer to mail it.
