JP is the Father and VP is the son just 18 years and a student in 12th grade. Son had an income of about 2000 and to get his refund I filed his tax return but forgot to mark as dependent and is claimed by his father. I filed his tax return first which is accepted and then I filed Father's tax return which is rejected. Father has LOW income and getting EIC. How Can I correct the son's FILED and ACCEPTED tax return?