After you file

An amended return has to be mailed.  It cannot be e-filed.

The way to amend your tax return is to wait for it to be fully processed and you have received your refund.  Then you can use a form called the 1040X to prepare an amended tax return to add a W-2, your student loan interest, a 1099R, or whatever else you originally forgot to include.  (or to change a dependent’s status, etc.)

https://ttlc.intuit.com/questions/2952222-how-do-i-amend-the-2016-taxes-i-filed-with-turbotax-online 

A 1040X cannot be e-filed.  It must be printed and mailed.  It will take about 2-4 months for the IRS to process an amended return.


Wait about 3 weeks and you can check the status of your amended return:

https://www.irs.gov/Filing/Individuals/Amended-Returns-(Form-1040-X)/Wheres-My-Amended-Return-1

**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**