If I submit federal tax though efile and california state 540 by mail, do I have to attach federal tax forms?
Printed turbotax forms indicate - Do not attach federal return
However, FTB ( https://www.ftb.ca.gov/file/ways-to-file/paper/index.html ) indicates
Attach a copy of your federal return (if not using form 540 2EZ)
Which one is true for 2020?
