Your state will not accept your e-file if the IRS did not accept an e-file from you, so you will also have to file your state return by mail. We cannot tell you why your child's state return was rejected. The rejection email he received should have said why it was rejected.
**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.**
