The thing your child needed to change was their answer in MY INFO regarding whether they could be claimed as someone else's dependent. They did not need to change anything about their income, etc. They do not need to amend again. You will need to file by mail. Once your child puts their SSN into the system, you are blocked from e-filing your own return with their SSN on your return. You do not have to wait----mail your return when you have it ready to put into an envelope.
This is very common. Teenagers and young adults filing first returns make this mistake a lot---and the parents who have to file by mail suffer the consequences....
When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s. Use a mailing service that will track it, such as certified mail so you will know the IRS/state received the return.
Federal and state returns must be in separate envelopes and they are mailed to different addresses. Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.
**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.**
