Claiming Your Grandchild as a Dependent

Updated August 3, 2026. Quick answer: a grandchild can be your dependent as a qualifying child, because the tax code’s relationship test reaches descendants, not just your own children. That opens the child tax credit and the dependent-related filing statuses. The usual sticking point is not the relationship — it is proving the child lived with you.

The relationship test is not the hard part

(2) Relationship For purposes of paragraph (1)(A), an individual bears a relationship to the taxpayer described in this paragraph if such individual is— (A) a child of the taxpayer or a descendant of such a child

— 26 U.S.C. §152(c)(2)(A)

“A descendant of such a child” covers a grandchild, and a great-grandchild too. No adoption or guardianship order is required to satisfy this particular test.

The residency test usually is

The child generally must have lived with you for more than half the year. In grandfamily situations children often move mid-year, sometimes more than once, and the paperwork that would ordinarily prove residency — a lease, school enrolment, medical records in your address — may name a parent instead. Start collecting those documents in the year they apply, not in the following April.

When a parent also claims the child

If two people claim the same child, tie-breaker rules decide it, and the second return filed is normally rejected electronically. This is a common and painful situation in grandfamilies. It is far better settled by agreement in advance than by two competing returns, and if a parent has no tax liability the claim may be worth nothing to them and thousands to you.

The child tax credit figures

Here we are going to be careful, because this is a figure people frequently carry forward from an old article. What we can state for 2026 is the refundable portion, which is published:

For taxable years beginning in 2026, the amount used in § 24(d)(1)(A) to determine the amount of the credit under § 24 that may be refundable is $1,700.

— Rev. Proc. 2025-32, section 3.05

The maximum credit is a different number, and the published $2,200 figure is the 2025 maximum, which is indexed for inflation after that year:

the OBBBA amends § 24(h)(2) to provide that the maximum amount of child tax credit is $2,200 for any taxable year beginning in 2025. This amount is adjusted for inflation for taxable years beginning after December 31, 2025.

— Rev. Proc. 2025-32, section 2.03 (describing OBBBA sec. 70104)

We have not found a published 2026 indexed maximum, so we are not printing one. If you see $2,200 quoted as the 2026 credit, check it — that is a 2025 figure, and the 2026 amount is adjusted from it.

Honest gaps

Head-of-household status and the credit for other dependents both interact with this and are not covered here. Income phase-outs apply to the child tax credit and are not stated.

Related: EITC for grandparents · the money guide.

General information drawn from the Internal Revenue Code, Treasury regulations and IRS publications, not legal or tax advice. Thresholds and dollar figures are adjusted regularly and several of the rules here turn on facts this page cannot see, so check the current year before you act on a number.