assuming you are correct and that your father can not claim you as a dependent, if he does not file an amended return removing you as a dependent, sooner or later both of you will get a notice to amend. if you are correct do nothing. it's your father that has to correct his return. if he fails to do so, the IRS mails a second notice to both asking for proof of dependency status. the IRS reviews the documentation and sends a bill to the person filing an incorrect return
