If you have qualifying children under the age of 18, you may be able to claim a child tax credit. (You may also be able to claim a partial credit for certain other dependents who are not qualifying children.) The American Rescue Plan Act of 2021 makes substantial, temporary improvements to the child tax credit for 2021, which may increase the amount you might receive.
Ages of qualifying children
The legislation makes 17-year-olds eligible as qualifying children in 2021. Thus, children age 17 and younger are eligible as qualifying children in 2021.
Increase in credit amount
For 2021, the child tax credit amount increases from $2,000 to $3,000 per qualifying child ($3,600 per qualifying child under age 6). The partial credit for other dependents who are not qualifying children remains at $500 per dependent.
Phaseout of credit
The combined child tax credit (the sum of your child tax credits and credits for other dependents) is subject to phaseout based on modified adjusted gross income (MAGI). Special rules start phasing out the increased portion of the child tax credit in 2021 at much lower thresholds than under pre-existing rules. The credit, as reduced under the special rules for 2021, is then subject to phaseout under the pre-existing phaseout rules.