When You Can Claim the Child Tax Credit and How It Works With Support Payments

The Child Tax Credit starts when your child is born, but you claim it on your tax return for the year they were born

The Child Tax Credit is a reduction in the federal income tax you owe — not a payment from the government, though some families do receive refundable portions of it. You can claim it for any child under 17 at the end of the tax year, as long as that child is your dependent and you meet income limits. The credit itself does not depend on child support payments you receive or make — the IRS treats those as separate from tax credits.

If your child was born in 2024, you would first claim the Child Tax Credit on your 2024 tax return, which you file in early 2025. The credit amount is $2,000 per child under 17, though this amount can change by year and by income level. You do not need to wait for anything to happen with child support to claim it — the credit is available to you as soon as the child exists and you meet the other requirements.

Key Takeaways

• The Child Tax Credit applies to children under 17 and is worth $2,000 per child, though the amount may be reduced if your income is above certain thresholds.
• You claim the credit on your federal tax return for the year the child was born or the year you became their parent, not in a separate process.
• Child support payments you receive do not increase the credit amount, and child support you pay does not reduce it.
• Some families receive part of the credit as a refund if they owe little or no tax, but this depends on your total income and tax situation.
• You must claim the child as a dependent on your return and provide their Social Security number to claim the credit.

How the Child Tax Credit connects to your tax return

The Child Tax Credit is claimed on Form 1040, the main federal income tax return form. You list each may have access to child by name and Social Security number, and the IRS calculates the credit based on your filing status and income. The credit reduces the amount of tax you owe dollar-for-dollar — if you owe $3,000 in tax and claim a $2,000 credit for one child, you owe $1,000 instead.

You file your return once per year, usually between January and April 15. There is no separate process for the Child Tax Credit itself — it is part of the standard return process. If you use tax software or work with a tax preparer, they will ask you about dependents and calculate the credit automatically.

Income limits that affect the credit amount

The full $2,000 credit is available if your income is below a certain threshold. That threshold depends on your filing status: for single filers it is $200,000, for married filing jointly it is $400,000, and for head of household it is $300,000. These thresholds can change year to year, so check the IRS website or your tax software for the current year.

If your income exceeds the threshold, the credit is reduced by $50 for each $1,000 (or fraction of $1,000) over the limit. For example, if you are single with income of $210,000, you are $10,000 over the threshold, which reduces your credit by $500 per child. You would receive $1,500 instead of $2,000 per child.

The refundable portion: when you get money back

Part of the Child Tax Credit is refundable, meaning you can receive it as a refund even if you owe no tax. The refundable amount is up to $1,700 per child for 2024, though this amount changes by year. If you owe $500 in tax and claim a $2,000 credit, you would owe zero tax and receive a refund of up to $1,500 (the non-refundable portion covers your $500 tax, and the refundable portion gives you the rest).

Whether you receive the full refundable amount depends on your earned income — you must have earned income (from wages, self-employment, or certain other sources) to claim the refundable portion. If you have no earned income, you can still claim the non-refundable portion of the credit, which reduces your tax but does not result in a refund if you owe nothing.

How child support and the credit are separate

Child support payments you receive are not counted as income for the Child Tax Credit calculation, and they do not increase the credit amount. Similarly, child support you pay does not reduce your income for credit purposes and does not lower the credit you can claim. The IRS treats child support as a family matter separate from tax credits.

What matters for the credit is your modified adjusted gross income (MAGI), which is calculated from your wages, self-employment income, investment income, and certain other sources — but not from child support. If you receive $500 per month in child support, that $6,000 per year does not appear on your tax return and does not affect your credit may be able to access or amount.

Claiming the credit when custody or guardianship changes

Only one person can claim the Child Tax Credit for each child in a given year. If you and the other parent share custody, you must decide who claims the child as a dependent. Usually the parent with primary custody claims the child, but you can agree otherwise. If you cannot agree, the IRS has rules based on who has custody for the majority of the year.

If you are a grandparent or other relative raising the child, you can claim the credit if the child lives with you for more than half the year and you provide more than half their financial support. You will need the child's Social Security number and must claim them as a dependent on your return.

What documents you need to claim the credit

You do not file a separate document to claim the Child Tax Credit — it is part of your regular tax return. You will need the child's full legal name and Social Security number. If the child does not have a Social Security number, you can explore for one through the Social Security Administration, and you can still file your return while waiting, though you cannot claim the credit until you have the number.

Keep records showing the child lived with you and that you provided support — receipts for childcare, school expenses, medical bills, or housing costs can help if the IRS questions your claim. You do not send these documents with your return, but you should have them available if asked.

Frequently Asked Questions

Can I claim the Child Tax Credit if I receive child support?

Yes. Child support does not affect whether you can claim the credit or how much it is worth. The credit is based on your income from wages and other sources, not on support payments. You can claim the credit regardless of whether you receive, pay, or neither.

What if the child's other parent claims them instead of me?

Only one person can claim the credit per child per year. If the other parent claims the child as a dependent, you cannot also claim the credit for that child. If you believe you should be the one claiming the child, you may need to work out an agreement or have a family court decide based on custody arrangements.

Do I have to claim the credit, or can I skip it?

You do not have to claim it, but it almost always saves you money. The only reason to skip it would be if claiming the child as a dependent would reduce another benefit you receive, though this is rare. Most families benefit from claiming the credit.

When do I get the refund if part of my credit is refundable?

You receive the refund when the IRS processes your return, usually within 21 days of accepting it if you file electronically and choose direct deposit. If you file on paper, it takes longer — typically four to six weeks.

Can I claim the credit for a child born late in the year?

Yes. If your child was born on December 31, they count as your dependent for that entire tax year, and you can claim the full credit. The child does not need to have lived with you for the whole year — they just need to be born before January 1 of the next year.