If you are waiting for your son's amended return to be processed so you can e-file, give that idea up. You will not be able to e-file this year, even if his return has been amended. The only way you can file your returns claiming him is to file by mail. Print, sign and date your returns in ink, and mail them.
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.**
