Child Tax Credit Eligibility Rules for 2026: Who Qualifies

For tax year 2025, the IRS page reports these maximums: a Child Tax Credit (CTC) of up to $2,200 per qualifying child, a refundable Additional Child Tax Credit (ACTC) of up to $1,700 per child, and a Credit for Other Dependents (ODC) of up to $500 per dependent. These are tax year 2025 figures; the same amounts are expected to apply for 2026, but confirm them on the IRS page. Which credit a filer can claim depends on whether the person is a qualifying child or another dependent. (IRS, 2026-09-21)

Who qualifies for the child tax credit in 2026?

The three credits and their maximums

Qualifying child versus dependent

A qualifying child is the only category that can generate the CTC and its refundable part, the ACTC. The IRS requires that the child be a U.S. citizen, U.S. national or U.S. resident alien. A child who meets the qualifying child rules can generate the CTC and, where eligible, the ACTC.

A dependent who does not meet the qualifying child rules falls under the Credit for Other Dependents. The ODC is the only credit in this group that accepts an ITIN or ATIN, so it covers dependents who cannot obtain a Social Security number valid for U.S. employment.

Which credit applies to each dependent type

• Qualifying child: the CTC applies, and the ACTC is the refundable portion for those eligible.
• Other dependent: only the ODC applies, at up to $500 per dependent.
• A single person can receive the CTC for one child and the ODC for another dependent on the same return.

Identification requirements

The taxpayer, the spouse (if filing jointly) and each qualifying child need a Social Security number valid for U.S. employment, issued before the return due date, including extensions. Sources do not state a separate rule for the ODC beyond the ITIN or ATIN option.

How much is the credit per child?

The Child Tax Credit is worth up to $2,200 per qualifying child, and the Credit for Other Dependents is worth up to $500 per dependent. These are maximum amounts.

Each credit is calculated separately and then added together. A household’s total is the sum of the two, not a single shared amount.

To estimate the maximum total for a return, use this formula:

Total maximum = (number of qualifying children × 2,200) + (number of other dependents × 500)

The table below applies the Child Tax Credit ceiling to households with different numbers of qualifying children. Each row is the Child Tax Credit only, before any other dependents are added.

For example, a return with 2 qualifying children and 1 other dependent has a maximum of $4,400 + $500 = $4,900.

The figures above are ceilings, not guaranteed amounts. The credit is calculated per child and reduced at higher income levels, so the amount on a return can be lower.

Age and residency tests

A child must pass at least these checks to be a qualifying child for the Child Tax Credit: an age limit, a residency test, and a citizenship or residency-status requirement. The child must also have a valid Social Security number, and other IRS qualifying-child tests (such as the relationship to the taxpayer) apply; check the IRS guidance. Each check applies to the child, not to the taxpayer, and all three must be met.

The age test is measured on December 31 of the tax year, not on the date you file. A child who turns 17 during the year does not qualify for the Child Tax Credit for that year, even if the child was 16 for most of it. The test is based on the age at the end of the year, so a child born during the tax year counts as under 17 at year end.

The residency test requires more than six months of shared housing. The child must have lived with the taxpayer for more than half the year. Counting the number of months in the household is the practical way to check this. If the child spent part of the year elsewhere, the test may not be met, and the taxpayer should confirm the exact count before claiming the credit.

For the status requirement, the child must hold one of three recognized statuses: U.S. citizen, U.S. national, or U.S. resident alien. The IRS page does not list documents or procedures for proving this status, so the taxpayer should check the IRS guidance for the current tax year.

Social Security number requirements

Under the Child Tax Credit rules, the taxpayer, the spouse (if filing jointly) and each qualifying child need a Social Security number (SSN). The Credit for Other Dependents has its own exception, described below. The number must be valid for U.S. employment and must have been issued before the return due date, including extensions. A number issued after that deadline does not qualify, even if it is valid today.

The requirement applies to three groups:

• The taxpayer, who always needs a qualifying SSN.
• The spouse, if the return is filed jointly.
• Each qualifying child, meaning every child claimed for the Child Tax Credit.

The Credit for Other Dependents is the exception. A dependent claimed for this credit can use an ITIN (Individual Taxpayer Identification Number) or an ATIN (Adoption Taxpayer Identification Number) in place of an SSN. The taxpayer’s own number is still required under the general rule, so the exception covers only the dependent.

Income limits and phase-outs

The full Child Tax Credit applies at income up to $200,000, or up to $400,000 if filing jointly. Above those levels the credit is reduced, not automatically lost: the IRS states that higher earners may still get a partial credit (IRS, 2026-09-21). The threshold depends on filing status, so the same household income can lead to a different result depending on how the return is filed.

The phase-out reduces the credit gradually as income rises past the threshold. The source for this section does not state the reduction rate or the exact formula, so no percentage is given here. To find the actual amount:

1. Confirm the filing status on the return, since it sets which threshold applies.
2. Compare the income figure on the return with the threshold for that status.
3. If income is at or below the threshold, the full credit applies, subject to the other eligibility tests.
4. If income is above the threshold, use the calculation worksheet included with the tax form instructions to compute the reduced amount.

Filing status determines the threshold, so a change in status, such as switching from a joint return to separate filing, changes the phase-out starting point. Check the income figure used in the calculation rather than estimating from gross pay alone.

How much of the credit is refundable?

The Additional Child Tax Credit (ACTC) is the refundable part of the Child Tax Credit. The Child Tax Credit is worth up to $2,200 per qualifying child, and the ACTC can return up to $1,700 per child. The ACTC applies when the credit exceeds the tax owed. Only the amount left over after the tax owed is reduced to zero can be refunded.

The refundable amount is limited in two ways. It cannot be larger than the unused part of the credit, and it cannot exceed $1,700 for each qualifying child. Because the cap is set per child, the maximum refundable amount rises with the number of qualifying children, while the cap for each child stays the same.

The ACTC also has an earned-income requirement. A filer must have at least $2,500 of earned income to claim the refundable portion. A filer below this level cannot receive the ACTC, even if the credit is larger than the tax owed.

Timing of the refund: the IRS cannot issue refunds before mid-February for returns claiming the EITC or ACTC.

When do refunds arrive for ACTC filers?

Refunds on returns that claim the ACTC cannot be issued before mid-February. The same restriction applies to returns claiming the Earned Income Tax Credit (EITC). Filing early does not move the date: the IRS cannot issue these refunds until mid-February, so a return filed in January still waits for that window. The IRS page does not give an exact day, so treat mid-February as the earliest possible refund date.

Timing at a glance

Tracking the refund with Where’s My Refund

Use the IRS “Where’s My Refund” tool to check the status of a return. For ACTC and EITC returns, the IRS advises checking in mid-to-late February. The IRS advises checking in mid-to-late February, because refunds cannot be issued before mid-February. Keep a copy of the filed return nearby, since the tool asks for identifying details taken from it.

How the federal hold applies to ACTC and EITC returns

The hold is tied to the credit claimed, not to when the return is filed. Any return that claims the ACTC or the EITC falls under the mid-February restriction. This section covers only those returns. Returns that claim neither credit are outside the rule described on the IRS page, so their timing should be checked separately.

Common mistakes that can reduce your credit?

Most filing errors that cut or delay the Child Tax Credit (CTC) and the refundable Additional Child Tax Credit (ACTC) come from three sources: two taxpayers claiming the same child, mistyped identity details, and income figures taken from the wrong tax year. Each one can reduce the amount you receive or hold up the return during processing.

Key point: the child’s age, residency and identity details must be verified against source documents, not recalled from memory.

Before submitting, check that each child listed is claimed by only one taxpayer for the year, that identity details match documents, and that the earned income figure comes from the same tax year as the return.

Frequently asked questions

Does my child have to be under 17 to qualify for the child tax credit in 2026?

Yes. The child must be under 17 at the end of the tax year, must have lived with you for more than half the year, and must be a U.S. citizen, U.S. national or U.S. resident alien. The IRS applies additional qualifying-child tests, such as relationship, so check the full list on the IRS page.

My dependent has no Social Security number. Can I still claim anything?

Possibly, but only the Credit for Other Dependents, which can be claimed with an ITIN or ATIN instead of a Social Security number, up to $500 per dependent. The larger Child Tax Credit and its refundable part require a Social Security number valid for U.S. employment, issued before the return due date, including extensions. The 2026 amounts were not confirmed on the IRS page at the time of writing, so verify them there before filing.

Does a high income reduce the child tax credit, and how much earned income do I need for the refundable portion?

The full credit applies at income up to $200,000 for most filers, or up to $400,000 if filing jointly, and higher earners may receive a partial credit. The refundable Additional Child Tax Credit requires at least $2,500 of earned income, and it applies only when the credit exceeds the tax you owe.

Key takeaways

• Check the IRS Child Tax Credit page for the 2026 maximums before estimating your credit, since the $2,200 CTC figure is confirmed only for tax year 2025.
• Confirm each child was under 17 on December 31 of the tax year, because the CTC does not apply to older children.
• Verify that every qualifying child has a Social Security number valid for U.S. employment and issued before the return due date, including extensions.
• Calculate your modified income against the $200,000 single or $400,000 joint threshold to see whether you get the full credit or a reduced one.
• Check that you have at least $2,500 of earned income before counting on the refundable ACTC, up to $1,700 per child.
• Wait until mid-February before expecting a refund on returns claiming the EITC or ACTC, then track it with “Where’s My Refund.”