Is E-filing federal, and paper filing 1NPR WI state return possible?

Sure you can. We efile Federal plus California but sometimes have to paper file one or the other (often because ot the rather silly California restrictions on deceased taxpayers). And I have a client who does Federal and Colorado (his home state) electronically but we file a non-resident New York by paper - with paper attachments of the Federal. Yes it gets confusing, but it's quite normal and usual.

Nan, EA in LA

Yes.

Print two copies of your Federal return, one for your files and one to attach to the WI return. No signatures required unless WI instructions tell you to send a signed copy.

-- Phil Marti Clarksburg, MD

I believe that you are correct; just print out a copy of your e-filed Federal return and send it with your Wisconsin return. I don't think you need to sign it for WI since you already signed electronically for the feds.

-- John D. Goulden

I would print the 1040, add signatures and send it with the WI return. As long as you provide a copy to WI it doesn't matter whether you filed a paper 1040 or efiled it. Whether the signature is necessary or not, it can't hurt anything to give them the signatures just in case they want it signed.