Yes, a foster child can be claimed as a dependent on your federal tax return, provided the child was placed in your home by an authorized placement agency or by court order and meets the IRS’s tests for a qualifying child. Doing so can be worth up to $2,200 per child through the Child Tax Credit for the 2025 tax year, plus potentially thousands more through the Earned Income Tax Credit and a larger standard deduction if you file as head of household.
The Placement Has to Be Official
The IRS treats a child as your foster child only when the placement is formal. That means either an authorized placement agency put the child in your home, or a court ordered the placement. Authorized agencies include state and local government bodies such as a department of social services, along with tax-exempt organizations licensed by a state to place children.1Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Relationship Test
Informal arrangements do not qualify. If a relative or friend simply asked you to take in their child and no agency or court was involved, the child is not your foster child for tax purposes. You may still be able to claim the child under a different set of rules, but not on the foster child pathway.
The Five Tests the Child Has to Pass
Once the placement is official, the child has to pass five tests to be your qualifying child.2Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Qualifying Child
Relationship
An authorized placement or court order handles this test automatically. No biological or adoptive connection is required.
Age
The child must be under 19 at the end of the tax year and younger than you (or your spouse, if you file jointly). The limit stretches to under 24 if the child is a full-time student for at least five months of the year. There is no age limit if the child is permanently and totally disabled at any point during the year.
Residency
The child must have lived with you for more than half the year. When a placement happens partway through the year, the IRS measures from the date of placement: the residency test is met as long as your home was the child’s main home for more than half the time since the placement began.3Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Residency Test
Temporary absences do not break the residency test. Time away for school, vacation, medical care, military service, or detention in a juvenile facility still counts as time living with you, as long as the child is expected to return.
Support
The child cannot have provided more than half of their own support during the year. This is where foster parents often worry, and the answer is almost always reassuring. Payments you receive from a placement agency, state, or county count as support provided by that third party, not by the child.2Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Qualifying Child Your own out-of-pocket spending on food, clothing, housing, and other needs counts as support you provided. The only question is whether the child themselves earned and spent enough to cover more than half their own costs, which is rare for children in foster care.
One narrow exception applies if you provide foster care through a charitable organization: unreimbursed expenses that are deductible as charitable contributions do not count as support you provided. Unreimbursed costs that are not deductible as charity do count.4Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Support Test
Joint Return
The child cannot have filed a joint tax return with a spouse for the year, unless the return was filed only to claim a refund of withheld taxes or estimated payments. This mostly comes up with older teenagers who married during the year.
If the Child Is Too Old to Be a Qualifying Child
An older foster child who fails the age test may still be your dependent under the qualifying relative rules. The official placement satisfies the relationship requirement, or the child can qualify by living with you as a member of your household for the entire year.5Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information
The financial thresholds are stricter here. The child’s gross income for 2025 must be less than $5,200, and you must provide more than half of the child’s total support.6Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Gross Income Test The tax benefits are also narrower. A qualifying relative does not open the door to the Child Tax Credit or the Earned Income Tax Credit, though the $500 Credit for Other Dependents may still apply.7Internal Revenue Service. Child Tax Credit
When More Than One Person Could Claim the Child
Sometimes a foster child technically meets the qualifying child tests for more than one person, such as a foster parent and a biological parent. The IRS uses tie-breaker rules to sort this out.8Internal Revenue Service. Qualifying Child Rules – Section: Only One Person May Claim a Qualifying Child
A parent beats a non-parent by default. If both parents could claim the child but do not file jointly, the child goes to the parent with whom the child lived longer, and if that time is equal, to the parent with the higher adjusted gross income. A foster parent can claim the child only when no parent is claiming the child, and even then only if the foster parent’s AGI is higher than the AGI of any parent who could have made the claim.
You Need a Taxpayer ID Number for the Child
Every dependent needs a valid Taxpayer Identification Number on your return. Without one, the IRS will reject the dependency claim and any credits tied to it.9Internal Revenue Service. Dependents
Usually that number is a Social Security Number. If you do not have the child’s SSN, ask the placing agency; they can typically provide it or help you obtain one. For a child not eligible for an SSN, you can apply for an Individual Taxpayer Identification Number using IRS Form W-7. The Adoption Taxpayer Identification Number (ATIN) is a separate program limited to children placed with you for legal adoption, so it fits only foster parents who are also adopting and whose child does not yet have an SSN.
Foster Care Payments Do Not Count as Income
Money you receive from a state, local government, or licensed placement agency to care for a foster child is not taxable. Federal law excludes qualified foster care payments from your gross income entirely, including standard maintenance payments and difficulty-of-care payments for children with special needs.10Office of the Law Revision Counsel. 26 USC 131: Certain Foster Care Payments You do not report these payments on your return.
This lines up neatly with the support test. The payments are treated as third-party support, not as your income and not as the child’s, so they do not knock the child out of qualifying status. You get the payments tax-free and can still claim the child.
What Claiming the Child Actually Gets You
The dependency claim is the gateway to several tax benefits. How much you save depends on your income and the child’s age.
Child Tax Credit
The Child Tax Credit is worth up to $2,200 per qualifying child for the 2025 tax year. The child has to be under 17 at year-end, be your dependent, and be a U.S. citizen, national, or resident alien. The full credit is available at incomes up to $200,000 ($400,000 for married couples filing jointly), with a phase-out above those levels.7Internal Revenue Service. Child Tax Credit
If your tax bill is small, up to $1,700 per child is refundable through the Additional Child Tax Credit. You need at least $2,500 in earned income to tap that refundable portion.
Earned Income Tax Credit
For many foster parents, the EITC is the biggest single benefit. Maximum credits for 2025 run to $4,328 with one qualifying child, $7,152 with two, and $8,046 with three or more.11Internal Revenue Service. Earned Income and Earned Income Tax Credit (EITC) Tables Income limits vary with filing status.
A few EITC rules differ from the general dependency tests. The child must have lived with you in the United States for more than six months, which is slightly stricter than the general residency test. The support test does not apply to the EITC at all. And the exception that sometimes lets a noncustodial parent claim a dependent does not carry over to the EITC: only the person the child actually lived with can claim this credit.
Child and Dependent Care Credit
If you pay for daycare, after-school care, or similar services so you can work or look for work, the Child and Dependent Care Credit can offset some of the cost. The foster child must be under 13 and claimed as your dependent. Up to $3,000 in care expenses count for one child, or $6,000 for two or more. Your credit is a percentage of those expenses, and the percentage drops as income rises.12Internal Revenue Service. Topic No. 602, Child and Dependent Care Credit
Credit for Other Dependents
When the foster child is too old for the Child Tax Credit, typically age 17 or older, the Credit for Other Dependents can still deliver up to $500. The child has to be claimed on your return and have a valid taxpayer identification number. Phase-outs begin at $200,000 in AGI ($400,000 for joint filers).7Internal Revenue Service. Child Tax Credit
Head of Household Filing Status
An unmarried foster parent claiming the child as a dependent can file as head of household, which carries a bigger standard deduction and more favorable brackets than filing single. For 2025 the head of household standard deduction is $23,625, compared to $15,000 for single filers.13Internal Revenue Service. Publication 501 (2025), Dependents, Standard Deduction, and Filing Information – Section: Head of Household The child must have lived in your home more than half the year (measured from the placement date if the child arrived mid-year), and you must have paid more than half the cost of keeping up the home during that time.