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
https://www.irs.gov/filing/individuals/amended-returns-form-1040-x/amended-return-frequently-asked-q...
**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.**
