CTC rules for 2026
How the child tax credit works in 2026
The child tax credit directly reduces your federal tax bill — dollar for dollar — by up to $2,200 for each qualifying child under age 17. For a family with two children and enough tax liability, that is a $4,400 reduction. Unlike a deduction (which lowers taxable income), a credit cuts the tax itself, making the CTC one of the most impactful provisions in the tax code for families.
The income phaseout
The full credit is available to single filers with modified adjusted gross income (MAGI) up to $200,000 and married couples filing jointly up to $400,000. Above these thresholds, the credit is reduced by $50 for every $1,000 (or fraction thereof) of income over the limit.
| Filing status | Phaseout starts | CTC fully phased out (2 children) |
|---|---|---|
| Single / Head of household | $200,000 | $288,000 |
| Married filing jointly | $400,000 | $488,000 |
Phaseout elimination point depends on number of children. For 2 children ($4,400 total), the credit reaches $0 at $88,000 above the threshold ($4,400 / $50 × $1,000 = $88,000 above).
SSN requirement tightened
Starting with tax year 2026, both the taxpayer (and spouse, if filing jointly) and each qualifying child must have a valid Social Security number to claim the CTC. An Individual Taxpayer Identification Number (ITIN) is no longer sufficient for the child. This change affects some mixed-status families.
CTC impact on your paycheck
While the CTC is claimed on your annual tax return, you can effectively receive it in advance by adjusting your W-4 withholding. Claiming the credit on your W-4 reduces federal withholding from each paycheck, increasing your take-home pay throughout the year. Use our paycheck calculator to model the difference.
Questions
Child tax credit calculator FAQ
How much is the child tax credit in 2026?
For tax year 2026, the child tax credit is $2,200 per qualifying child under age 17. Up to $1,700 of this amount is refundable, meaning you can receive it even if you owe no federal income tax. Both the parent (and spouse if filing jointly) and the child must have a Social Security number.
What is the income limit for the child tax credit in 2026?
The CTC begins to phase out at $200,000 of modified adjusted gross income for single filers and $400,000 for married filing jointly. The credit is reduced by $50 for every $1,000 (or fraction thereof) by which your income exceeds the threshold. A married couple with two children and $450,000 income would lose $2,500 of their $4,400 total credit.
What is the refundable portion of the CTC?
Up to $1,700 per child is refundable in 2026 as the Additional Child Tax Credit (ACTC). If your tax liability is less than the full CTC, you can receive up to $1,700 per child as a refund. The refundable amount is calculated based on your earned income above $2,500, at a rate of 15%.
Who counts as a qualifying child for the CTC?
A qualifying child must be under age 17 at the end of the tax year, be your son, daughter, stepchild, foster child, sibling, or descendant of any of these, have lived with you for more than half the year, not have provided more than half their own support, and have a valid Social Security number. The child must be claimed as a dependent on your return.
Can I claim the CTC if I have no income tax liability?
Yes, partially. Even if you owe no federal income tax, you can still receive up to $1,700 per child through the refundable Additional Child Tax Credit (ACTC), provided you have earned income above $2,500. The refundable portion equals 15% of earned income above $2,500, capped at $1,700 per child.
- Sources: IRS child tax credit page (2026: $2,200/child, $1,700 refundable) · One Big Beautiful Bill Act (OBBBA, CTC provisions) · Kiplinger 2026 CTC summary.
- 🔄 Last updated July 25, 2026 · Tax year 2026
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