Why do I still need to mail in copy form after I fill e-file

[thanyalakp59]

I'm not sure that you say "what you need to mail" i'm so confuse about it because I think I use the e-file why do I still need to mail my documents again

[DaraLO · Accepted solution]

To confirm whether or not you e-filed, please refer to the instructions listed in the following Help Article:  How do I check my e-file status?

However, there are a handful of situations where you might have to mail something after e-filing, like if your return contains Form 8453. If the software prompted you, then you should mail in the required form.

Reference:  Do I need to mail anything after I've e-filed?