I would wait till after 10/15, as client only gave me their data last week, but there are carry forwards (passive activity K1) going into 2018 and I wanted to get their 2018 filed on time.  To do so I need to correct 2017.  I guess I can just override the Prior year info in 2018, but the non resident state for 2017 needs to be filed and I was just wondering if I could efile the amended returns and the original non resident state at the same time.