1040X e-filed

[grandmabee]

Can I e-file a 2019 1040X if I didn't do the original return through ATX?

[Catherine]

It's stand-alone, so you should (I don't use ATX anymore).

[Pacun]

If the original 1040 was efiled, you are allowed to efile 1040X. I would create 1040 exactly as it was filed. Then I would select amend return, make the changes and create the efile file. Then efile. 

[Jack from Ohio]

I agree with Pacun.  It is the same process we use here.