You can claim the child tax credit for any child that you claim as a dependent who lived with you for more than half the year and who is also under 17 years old. For divorced or separated parents, if the custodial parent signs Form 8332 or a similar document, the noncustodial parent can claim both the exemption and the child tax credit.
See the instructions for Line 6c of IRS Form 1040,
starting on page 17. TurboTax will ask you the necessary questions to
make this determination.
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