Thank you for the answer.So, even though he didn't have a SSN in 2020, but now he has finally got his SSN, the IRS will confirmed he is my dependent in 2020 and...
DoninGa, thank you for the answer. I read page 3, but want to double check. So since I made less than $10,350 in 2016, and I wasn't self employed, I don't have ...