For the child tax credit, you may first want to check the dependent information that flows to Form 1040 to see how the information regarding the child is being reported. It is important that the child's data (such as social security number, year of birth, relationship, number of months lived with you, etc.) is entered correctly for the child tax credit to calculate.
To review or change the dependent information:
Your credit amounts are automatically calculated based on the dependent and income information you have entered. To review your calculated child tax credit:
For additional information regarding the Child Tax Credit please refer to IRS Instructions for Form 1040 or IRS Publication 972 Child Tax Credit.