And....your grandson's W-2's do not go on your return or his parents' return. He can file his own return in order to seek a refund of federal or state tax withheld as shown on boxes 2 or 17 of his W-2's. He must say on his own return that he can be claimed as someone else's dependent.
**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.**
