@fanfare sounds good! so, file by mail and include a note of the situation. My dad's taxes have been processed and is just waiting for the 2020 1040x forms to open up. Can you give me feedback of what to write in the note... this what I've thought of so far
to whom it may concern,
My father claimed me as a dependent by mistake. He is in the process of filing a form1040x to correct the mistake.
