The option to make a correction is not yet operational so if you don't get it fixed you will just get the credit on the 2021 return.
If your older child is 6 by the end of 2021 then $250 is the correct amount for him. When the IRS portal is fully functional you will be able to enter the information to get the CTC for the younger child --- her amount should be $300 since she will be UNDER 6 at the end of 2021.
A1. For tax year 2021, the Child Tax Credit is increased from $2,000 per qualifying child to:
- $3,600 for children ages 5 and under at the end of 2021; and
- $3,000 for children ages 6 through 17 at the end of 2021.
Note: The $500 nonrefundable Credit for Other Dependents amount has not changed. For more information about the Credit for Other Dependents, see IRS Publication 972, Child Tax Credit and Credit for Other Dependents .