You cannot change anything on a return after you e-file it. And you cannot amend until the first return has been fully processed. If you made an incorrect entry about the child tax credit you received, the IRS will probably catch the mistake and correct it for you-----but it will take them extra time, so expect a delay in receiving your refund.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
