Thanks for clarifying! I'm amending due to a missed $2000 HSA contribution made last minute in 2017 - account holder indicated it was too late to get in for 2016 so filed without it, then noticed much later on 5498-SA that it did count for 2016. Worth it for a few hundred in my favor.
New to TT, thanks for the help, seems to be little details that stall me - I'll get better!
