The Child Tax Credit can reduce federal income tax for eligible parents and guardians with qualifying children. However, claiming the credit involves more than simply having a child or listing a dependent on your tax return.
For example, the child’s age, relationship, residency and Social Security number can affect eligibility. In addition, income limits can reduce the available credit for higher-income taxpayers.
Therefore, understanding the requirements before filing can help families claim the credit correctly and avoid preventable delays. It is also important to distinguish the Child Tax Credit from its refundable component, the Additional Child Tax Credit.
START WITH THE BASICS
What Is the Child Tax Credit?
The Child Tax Credit, commonly called the CTC, is a federal tax credit available to eligible taxpayers with qualifying children.
Unlike a tax deduction, a credit generally reduces income tax directly. Consequently, an eligible Child Tax Credit can have a significant effect on the final tax calculation.
However, the regular CTC is a nonrefundable credit. That means the nonrefundable portion generally cannot create a refund after eligible federal income tax liability has been reduced to zero.
Fortunately, some taxpayers may also qualify for the Additional Child Tax Credit. The ACTC is the refundable portion of the Child Tax Credit and works differently.
TWO PARTS TO UNDERSTAND
CTC + ACTC
The Child Tax Credit and Additional Child Tax Credit are related, but their refundability is different.
Therefore, the amount shown on a tax return depends on both eligibility and the taxpayer’s overall tax situation.
SSN REQUIREMENTS
Social Security Number Rules Are Especially Important
The identification requirements for the Child Tax Credit deserve careful attention. Beginning with tax year 2025, federal law includes SSN requirements affecting both the taxpayer and qualifying child.
The Qualifying Child Needs an Eligible SSN
To qualify for the CTC or ACTC, the qualifying child must have a Social Security number that is valid for employment in the United States and issued by the required deadline.
Consequently, a child who has only an Individual Taxpayer Identification Number, or ITIN, does not qualify as a qualifying child for the CTC or ACTC.
However, a dependent who does not qualify for the Child Tax Credit may potentially qualify for the Credit for Other Dependents when the separate requirements for that credit are satisfied.
The Taxpayer’s Identification Also Matters
Beginning with tax year 2025, the taxpayer claiming the CTC or ACTC must also satisfy applicable identification requirements.
For a married couple filing jointly, at least one filer must have the required valid Social Security number. Meanwhile, the other filer must have an SSN or ITIN issued by the applicable deadline.
Because these requirements changed beginning in 2025, taxpayers should not rely on older articles when determining current eligibility.
CREDIT AMOUNT
How Much Is the Child Tax Credit?
For tax year 2025, the maximum Child Tax Credit increased to $2,200 per qualifying child.
However, $2,200 is a maximum rather than an automatic refund for every child. The actual tax benefit depends on eligibility, income, tax liability and other factors.
In addition, federal law provides for the maximum Child Tax Credit amount to be adjusted for inflation after 2025. Therefore, families should verify the applicable amount for the specific tax year they are filing rather than assuming an older figure still applies.
Higher-income taxpayers can also receive a reduced credit because income phaseout rules apply.
2025 TAX YEAR
$2,200
Maximum Child Tax Credit per qualifying child for tax year 2025.
Future-year maximums can be adjusted for inflation. In addition, eligibility and income limitations still apply.
INCOME LIMITS
Income Can Reduce the Available Credit
Qualifying for the full Child Tax Credit also depends on income.
Therefore, meeting all of the qualifying-child requirements does not necessarily mean every taxpayer receives the maximum credit.
When Does the Credit Begin to Phase Out?
Under current federal rules, the Child Tax Credit begins to phase out when modified adjusted gross income exceeds $200,000 for most filing statuses.
For married couples filing jointly, the phaseout threshold is $400,000.
A Phaseout Does Not Always Mean No Credit
Taxpayers above those income levels may still qualify for a partial credit. Instead, the available amount decreases under the applicable phaseout calculation.
As a result, higher income should not automatically be interpreted as complete ineligibility without performing the calculation.
REFUNDABLE CREDIT
What Is the Additional Child Tax Credit?
The Additional Child Tax Credit, or ACTC, is the refundable component of the Child Tax Credit. Consequently, it can potentially provide a refund to an eligible taxpayer who cannot use the entire regular Child Tax Credit against federal income tax liability.
Refundability Is Limited
For tax year 2025, the maximum refundable ACTC is $1,700 per qualifying child.
However, that amount is also a maximum. The actual refundable credit can depend on earned income and the applicable ACTC calculation.
For 2025, a taxpayer generally needs at least $2,500 of earned income to qualify for the ACTC. In addition, the refundable amount is subject to the statutory calculation and other requirements.
The ACTC Can Affect Refund Timing
Federal law restricts how early the IRS can issue refunds on returns that properly claim the ACTC.
For returns claiming the 2025 ACTC, the IRS cannot issue the affected refund before mid-February 2026. Importantly, this restriction applies to the entire refund, not merely the portion attributable to the ACTC.
Therefore, a return claiming the ACTC can take longer to produce a refund than a taxpayer may expect based solely on the filing date.
OTHER DEPENDENTS
What if Your Dependent Does Not Qualify for the CTC?
Failing the Child Tax Credit requirements does not always mean there is no dependent-related federal tax credit available.
Instead, some taxpayers may qualify for the Credit for Other Dependents.
Credit for Other Dependents
The Credit for Other Dependents, commonly called the ODC, is a separate nonrefundable credit for eligible dependents who do not qualify for the Child Tax Credit.
For example, an older child or another qualifying dependent may potentially fall under the ODC rules when the requirements are satisfied.
Identification Rules Are Different
Unlike the qualifying-child SSN requirement for the CTC, an eligible dependent for the ODC may have an SSN, ITIN or ATIN that satisfies the applicable requirements.
Therefore, families should not assume that a dependent who cannot qualify for the CTC automatically provides no tax benefit.
WHO CLAIMS THE CHILD?
Be Careful When More Than One Person Could Claim a Child
Family arrangements can make dependent-related credits more complicated. For example, divorced parents, separated parents and other relatives may all contribute financially to a child’s care.
However, financial support alone does not determine who can claim the Child Tax Credit. Federal dependent and qualifying-child rules still apply.
In some situations, special rules can affect which parent claims a child as a dependent and which child-related tax benefits follow that claim. Therefore, custody arrangements and tax rules should be reviewed together rather than relying on an informal family agreement alone.
Additionally, duplicate dependent claims can cause processing problems. Confirm the correct treatment before multiple taxpayers file returns claiming the same child.
BEFORE FILING
Confirm These Details
✓ Child’s age at year-end
✓ Relationship to the taxpayer
✓ Where the child lived
✓ Support information
✓ Dependent eligibility
✓ Social Security number
✓ Filing status
✓ Income limitations
Together, these details help determine whether the CTC, ACTC or another dependent credit may apply.
FILING THE RETURN
Schedule 8812 Helps Calculate the Credit
Schedule 8812 is used with Form 1040 and certain other individual returns to calculate credits for qualifying children and other dependents.
In addition, the schedule contains the calculation for the Additional Child Tax Credit when applicable.
Don’t Guess the Refundable Amount
The ACTC is not automatically equal to its maximum amount. Instead, Schedule 8812 applies the relevant calculations to determine the allowable credit.
Use the Correct Tax Year’s Instructions
Tax amounts and certain requirements can change from year to year. Consequently, use the Schedule 8812 instructions for the return you are actually preparing.
Review the Return Before Filing
Finally, confirm the child’s identifying information and dependent status before submitting the return. Incorrect names, identification numbers or dependent information can create avoidable processing issues.
COMMON MISTAKES
Avoid Errors That Can Affect Your Child Tax Credit
A careful review before filing can prevent several common CTC problems. Most importantly, do not assume that qualifying as a dependent automatically means qualifying for every child-related tax credit.
Using Outdated Credit Information
Child Tax Credit rules have changed several times in recent years. Therefore, avoid relying on an old article or prior-year tax return as the only source for current requirements.
Ignoring the Age Requirement
A child can still qualify as a dependent even when the child no longer meets the under-17 requirement for the CTC. As a result, dependent status and CTC eligibility should be evaluated separately.
Using the Wrong Identification Number
The CTC and ACTC have specific SSN requirements. Consequently, having an ITIN for the qualifying child does not satisfy the CTC qualifying-child SSN requirement.
Assuming the Maximum Is Automatic
The published maximum credit is not a guaranteed refund. Instead, the amount available depends on the taxpayer’s eligibility and tax circumstances.
Overlooking Income Limits
Higher-income taxpayers can experience a phaseout of the credit. Therefore, calculate the credit instead of assuming the full amount applies.
Confusing CTC With Other Family Credits
The Child Tax Credit, Earned Income Tax Credit and Child and Dependent Care Credit have different rules. In addition, qualifying for one does not automatically establish eligibility for another.
COMMON QUESTIONS
FAQ About the Child Tax Credit
These answers address common questions families have when preparing a federal income tax return.
For tax year 2025, the maximum Child Tax Credit is $2,200 per qualifying child. However, the actual credit depends on eligibility, income and the taxpayer’s overall tax situation. In addition, the maximum amount is subject to inflation adjustments for tax years after 2025.
A qualifying child generally must be under age 17 at the end of the tax year. Therefore, a dependent who is 17 or older at year-end generally does not satisfy the age requirement for the CTC, although another dependent-related tax provision may potentially apply.
No. A qualifying child for the CTC or ACTC must have a Social Security number that satisfies the applicable requirements. However, a dependent with an eligible ITIN may potentially qualify for the Credit for Other Dependents if the separate ODC requirements are met.
The regular Child Tax Credit is nonrefundable. However, eligible taxpayers may qualify for the Additional Child Tax Credit, which is the refundable portion of the CTC. The refundable amount depends on the applicable calculation and eligibility requirements.
The same qualifying child cannot simply be used by two taxpayers to claim the same Child Tax Credit for the same year. When more than one person could potentially claim a child, federal dependent and qualifying-child rules determine the appropriate tax treatment.
Federal law prevents the IRS from issuing refunds on returns claiming the Additional Child Tax Credit before a specified point in the filing season. Therefore, an ACTC return can have a different refund timeline even when the return was filed early.
Make Sure You’re Claiming the Child Tax Credit Correctly
The Child Tax Credit can provide a valuable federal tax benefit, but age, residency, identification, income and dependent requirements all matter.
ASB Tax & Accounting can help you review your family’s tax information, determine which credits may apply and prepare your federal and state income tax returns.
We serve individuals and families in Oxnard and surrounding Ventura County communities. In addition, assistance is available in English and Spanish.
Last reviewed: October 2026. Child Tax Credit amounts, inflation adjustments and eligibility requirements can change by tax year. Therefore, verify the rules applicable to the return you are preparing. This article provides general federal tax information and does not replace individualized tax advice.
