@Irene2805
Thank you for your reply. I really appreciate it. But according to the below text, it seems like I cannot retroactively claim child tax benefit by amending previously filed tax if the amended tax is after the "due date of return".
Not sure what the due date is. Is it May 17th, 2021(Filing deadline)?
"The Protecting Americans from Tax Hikes or PATH Act made several changes to the tax law, including preventing retroactive claims of the EITC by amending a return or filing an original return for any earlier year in which the individual or anyone listed on the return did not have a SSN valid for employment. You can't claim EITC unless the Social Security number for you, your spouse (if married filing a joint return) or a qualifying child is issued before the due date of the return including any valid extensions."
