I filed my tax forms electronically, and they were accepted by the IRS. After the acceptance, I realized that I entered 529 info about my son incorrectly after consultation with this community. I updated my return with the corrected information, and I swung from owing money to getting a refund. It looks like I have to file an amended return, but it also looks like I have to mail it. Since I just filed electronically yesterday, do I have to wait to file the amended return, or can I mail it this week.
