Without additional information I am not sure why your daughter is not qualifying.
Listed below are the requirements.
Here’s how to determine which of your kids will qualify you for the credit:
1. Age test
To qualify, a child must have been under age 17 (i.e., 16 years old or younger) at the end of the tax year for which you claim the credit.
2. Relationship test
The child must be your own child, a stepchild, or a foster child placed with you by a court or authorized agency. An adopted child is always treated as your own child. ("An adopted child" includes a child lawfully placed with you for legal adoption, even if that adoption is not final by the end of the tax year.) You can also claim your brother or sister, stepbrother, stepsister. And you can claim descendants of any of these qualifying people—such as your nieces, nephews and grandchildren—if they meet all the other tests.
3. Support test
To qualify, the child cannot have provided more than half of his or her own financial support during the tax year.
4. Dependent test
You must claim the child as a dependent on your tax return. Bear in mind that in order for you to claim a child as a dependent, he or she must:
- be your child (or adoptive or foster child), sibling, niece, nephew or grandchild;
- be under age 19, or under age 24 and a full-time student for at least five months of the year; or be permanently disabled, regardless of age;
- have lived with you for more than half the year; and
- have provided no more than half his or her own support for the year.
5. Citizenship test
The child must be a U.S. citizen, a U.S. national or a U.S. resident alien. (For tax purposes, the term "U.S. national" refers to individuals who were born in American Samoa or in the Commonwealth of the Northern Mariana Islands.)
6. Residence test
The child must have lived with you for more than half of the tax year for which you claim the credit. There are important exceptions, however:
- A child who was born (or died) during the tax year is considered to have lived with you for the entire year.
- Temporary absences by you or the child for special circumstances, such as school, vacation, business, medical care, military services or detention in a juvenile facility, are counted as time the child lived with you.
- There are also some exceptions to the residency test for children of divorced or separated parents. For details, see the instructions for Form 1040.
7. Family income test
The Child Tax Credit is reduced if your modified adjusted gross income (MAGI) is above certain amounts, which are determined by your tax-filing status.
- The credit is limited if your modified adjusted gross income is above a certain amount. The amount at which this phase-out begins varies depending on your filing status. For married taxpayers filing a joint return, the phase-out begins at $110,000. For married taxpayers filing a separate return, it begins at $55,000. For all other taxpayers, the phase-out begins at $75,000. In addition, the Child Tax Credit is generally limited by the amount of the income tax you owe as well as any alternative minimum tax you owe.
What if the credit exceeds my tax liability?
The Child Tax Credit is nonrefundable; if your credit exceeds your tax liability, your tax bill is reduced to zero and any remaining unused credit is lost. However, you may be able to claim a refundable Additional Child Tax Credit for the unused balance.
- Up to $1,400 per qualifying child is refundable with the Additional Child Tax Credit.
- You can find out if you're eligible for this refundable credit by completing the worksheet in IRS Form 8812.
Remember, when you file your taxes with TurboTax, we’ll ask simple questions about you and your kids and figure out exactly how much of the Child Tax Credit you’re eligible to receive.
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