I’m sorry but that is not correct what others have said that you can’t put a PIN on your dependents ssn. You most definitely can! Pull the form off the IRS website and after doing so if someone tries to do it again they will have to know that PIN for the return to be accepted by the IRS. Your best bet in all honesty is modify your current custody order so not only will he not get the CTC or the EIC but he will as well be in contempt of a court order.
