You cannot amend yet---not until the return has been fully processed and not until the Form 1040X you need is available in mid-February.
Sadly, this means the only way your mom can file her tax return that claims you is by mail. She will not be able to e-file this year at all even if you amend. So she can mail her return whenever she has it ready for the mailbox.
Your part in fixing this is to wait until your return has been fully processed and you have received your refund. THEN you need to file an amended return, called a 1040X, to change the way you answered that question in My Info about whether you can be claimed as someone else’s dependent.
If it is any comfort, you (and your parents) are among many young tax filers who make this mistake. We will be seeing plenty of posts just like yours. And posts from the parents whose e-files were rejected....
Wait until your original return has been fully processed before you amend, and make sure you have saved a pdf of the original return before you amend.
See this TurboTax support FAQ for amending a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...
Do not expect quick results from amending. It can take four months or more for the IRS to process an amended return.
You can watch for information here:
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.**
