I'm in the same boat - except it is now May 17th 2021. I electronically filed my 2020 return and then my son submitted his return. I had claimed him as a dependent last year and I thought I deleted him as a dependent for this year -- but somehow when I filed, my return still showed him as a dependent. My son's return was rejected because he stated he was not claimed on another return. (The irony is that both returns were open at the same time within TurboTax and a final review of both did not catch the inconsistency! UGH.) This is a big deal as the discrepancy will cause us a lot of effort to correct and significant differences in tax due!!! WHAT IS THE BEST APPROACH NOW? From what I've read so far, it seems I need to file an amended return and he needs to print and file his return by mail. UGH. Thanks a lot Turbo Tax. Any better ideas please let me know asap.
