MargaretL
Expert Alumni

Get your taxes done using TurboTax

Yes, you can amend and enter the child's SSN.

TheIRS says "you may not claim the credit on either your original or an amended return for a child who doesn't have an SSN by the due date of your return (including extensions), even if that child later gets an SSN." Since you did have the SSN by the due date, you can still get the Child Tax Credit.