if she was born in 2020, you were supposed to indicate that she lived with you all year. if you did not she would not be a qualifying child and the credit would be limited to the $500. you can file an amended return to indicate she lived with you all year. an amended return can take 6 months to process. this error may prevent you from getting any advance CTC payments, but you can claim the credit on your 2021 return.
