Follow the instruction here to Amend Your Return. Then when you do, you will go to the personal info section and select that someone else can claim you.
**Say "Thanks" by clicking the thumb icon in a post**Mark the post that answers your question by clicking on "Mark as Best Answer"
Go to MY INFO. Click your name. Go through the screens for the question that asks if someone else can claim you as a dependent. Say YES.
**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.**