The Child Tax Credit is affected by the amount of your income.
Per IRS Publication 972 Child Tax Credit, page 3:
Limits on the Credit
You must reduce the maximum credit amount of $1,000 for each child if either (1) or (2) applies:
- The amount on Form 1040, Line 47; Form 1040A, Line 30; or Form 1040NR, Line 45, is less than the credit. If this amount is zero, you cannot take this credit because there is no tax to reduce. But you may be able to take the ACTC. See Additional Child Tax Credit, later.
- Your modified adjusted gross income (AGI) is more than the amount shown below for your filing status.
- Married filing jointly - $110,000
- Single, head of household, or qualifying widow(er) - $75,000
- Married filing separately - $55,000.
For purposes of the CTC, your modified AGI is your AGI plus the following amounts that may apply to you.
- Any amount excluded from income because of the exclusion of income from Puerto Rico. On the dotted line next to Form 1040, line 38, enter the amount excluded and identify it as “EPRI.” Also attach a copy of any Form(s) 499R-2/W-2PR to your return.
- Any amount on Line 45 or Line 50 of Form 2555, Foreign Earned Income.
- Any amount on Line 18 of Form 2555-EZ, Foreign Earned Income Exclusion.
- Any amount on Line 15 of Form 4563, Exclusion of Income for Bona Fide Residents of American Samoa.
If you do not have any of the above, your modified AGI is the same as your AGI. AGI.
Your AGI is the amount on Form 1040, Line 38; Form 1040A, Line 22; or Form 1040NR, Line 37.