A tax credit is far more valuable than a deduction: a deduction lowers the income you're taxed on, but a credit cuts your tax bill dollar-for-dollar. The Child Tax Credit (CTC) is the biggest one most families claim. This guide covers the 2026 amount, the eligibility tests, and the income phase-out.
How much the credit is worth in 2026
For 2026 the Child Tax Credit is $2,200 per qualifying child under age 17, made permanent and indexed for inflation by the One Big Beautiful Bill Act. Up to $1,700 per child is refundable through the Additional Child Tax Credit, meaning you can receive it as a refund even if your tax bill is already zero. A separate $500 nonrefundable Credit for Other Dependents covers older children, college students, and qualifying relatives who don't meet the under-17 test.
The seven tests for a "qualifying child"
To claim the full CTC for a child, all of these must be true for 2026:
- Age: under 17 at the end of the year (16 or younger).
- Relationship: your son, daughter, stepchild, foster child, sibling, or a descendant of any of them (e.g., a grandchild).
- Dependency: you claim the child as a dependent on your return.
- Residency: the child lived with you more than half the year.
- Support: the child did not provide more than half of their own support.
- Citizenship: a U.S. citizen, national, or resident alien.
- Identification: a valid Social Security number issued before the return's due date.
The income phase-out
The credit is generous and reaches well into the middle and upper-middle class, but it phases out for high earners. It begins to shrink when modified adjusted gross income exceeds $200,000 ($400,000 for married filing jointly), dropping $50 for each $1,000 (or part thereof) above the threshold.
Example: a married couple with two children and MAGI of $430,000 is $30,000 over the $400,000 line. That's 30 increments of $1,000, so the credit falls by 30 × $50 = $1,500. Their $4,400 credit becomes $2,900. Your filing status sets which threshold applies, so it factors into the married-filing-jointly vs. separately decision.
Refundable vs. nonrefundable, illustrated
Suppose your tax before credits is $1,000 and you have one qualifying child ($2,200 credit). The credit zeroes out your $1,000 of tax. Because up to $1,700 is refundable, you can also receive a refund for part of the unused amount — subject to an earned-income formula (15% of earned income over $2,500). This is what makes the CTC valuable even to lower-income working families. The refund estimator factors the credit into your projected refund.
Credit for Other Dependents
Dependents who don't meet the under-17 test — a 17-year-old, a college student you support, or an elderly parent who qualifies as your dependent — may still earn you the $500 Credit for Other Dependents. It is nonrefundable and uses the same income phase-out.
How to claim it
You claim the CTC on your Form 1040 using Schedule 8812, which calculates both the nonrefundable and refundable portions. Most tax software does this automatically once you enter your dependents. To see how the credit changes your bottom line, enter your income and number of children in the federal income tax calculator — it applies the $2,200 credit and the phase-out so you can see your tax after credits, not just before.
Plan ahead with your W-4
Because the CTC lowers your annual tax, you can account for it on your W-4 (Step 3) so less is withheld during the year rather than waiting for a refund. If your income is near the phase-out threshold, be conservative — claiming too much on the W-4 can leave you under-withheld.
How the CTC differs from other child-related breaks
Families often confuse three separate benefits. The Child Tax Credit rewards simply having a qualifying child under 17. The Earned Income Tax Credit is a separate, income-based refundable credit for lower- and moderate-income workers and can be claimed alongside the CTC. The Child and Dependent Care Credit is different again — it offsets the cost of daycare or after-school care so you can work, based on actual care expenses. You can qualify for all three at once. Because each has its own rules and phase-outs, families with children should check every one rather than assuming the CTC is the only credit available.
Key takeaways
- The 2026 CTC is $2,200 per qualifying child under 17.
- Up to $1,700 per child is refundable as the Additional CTC.
- It phases out above $200,000 / $400,000 of income.
- Older dependents may qualify for the $500 Credit for Other Dependents.
- The CTC, EITC, and child-care credit are separate and can stack.