@gchmelewski wrote:
I am still puzzled as to why it rejected his return unless they were looking back at my 2019 return since they didn't have the 2020 return.
The IRS was not looking at your 2019 tax return. If the reject message that you got for his tax return is exactly the same as the message shown in the first post at the top of this thread, then someone filed a 2020 tax return claiming your son as a dependent. Is there anyone else who might try to claim him as a dependent - his other parent, another relative, or someone he lives with?
