2026 adoption tax credit rules practitioners should know

The 2026 adoption tax credit can provide eligible taxpayers with a credit of up to $17,670 per eligible child, but determining the correct amount requires tax professionals to look beyond the adoption expenses a client paid. The type of adoption, timing of expenses, income limitations and whether the child has been determined to have special needs can all affect the credit.

For 2026, the credit begins to phase out when adjusted gross income, determined without regard to §§911, 931 and 933, exceeds $265,080. The credit is fully phased out at $305,080. Up to $5,120 per eligible child may be refundable. The nonrefundable portion may reduce tax liability. Any unused nonrefundable credit may be carried forward to the five succeeding tax years, but any amount remaining after that period is forfeited.

Understanding these rules can help tax pros identify eligible clients, calculate the credit accurately and recognize situations that require additional attention.

Who qualifies for the adoption tax credit?

The adoption tax credit is available for qualified adoption expenses paid to adopt an eligible child. An eligible child is an individual under age 18 or an individual who is physically or mentally incapable of self-care. Married taxpayers generally must file a joint return to claim the credit unless they qualify to be treated as unmarried under the normal filing status rules.

Not every adoption qualifies. Expenses related to adopting a spouse's child do not qualify. The credit also does not apply to expenses for adopting an individual age 18 or older unless that individual is physically or mentally incapable of self-care. Expenses related to surrogate parenting arrangements or adoptions that violate federal or state law are also excluded.

For tax pros, a good starting point is confirming the child's age and circumstances, the taxpayer's relationship to the child and the type of adoption involved.

What expenses qualify?

Qualified adoption expenses include reasonable and necessary adoption fees, court costs, attorney fees and other expenses directly related to, and principally for, the legal adoption of an eligible child. Any claimed expense must also be lawful, unreimbursed and otherwise satisfy §23(d)(1). Other expenses directly related to the legal adoption may also qualify. There may be eligible state legal costs as well.

Some costs incurred before an adoptive child is identified may also qualify. For example, a home-study expense may qualify if, based on the facts, it is reasonable and necessary, directly related to and principally for the legal adoption, lawful and not reimbursed. The taxpayer should retain documentation showing that connection.

Ask clients whether they received employer-provided adoption assistance. Employer adoption assistance may be excluded from income when provided through a qualified written employer adoption assistance program. However, taxpayers cannot claim both the income exclusion and the adoption tax credit for the same qualified expenses.

When can you claim expenses?

The timing of the adoption tax credit depends on the type of adoption and when the expenses were paid.

For a domestic adoption that is not a special needs adoption, qualified expenses paid before the year the adoption becomes final are generally claimed in the year following the year they were paid. Expenses paid during or after the year the adoption becomes final are claimed in the year paid.

If a domestic adoption fails and a later domestic adoption is successful, qualified expenses from both the failed and successful adoptions are used to determine the credit, subject to the maximum adoption tax credit allowed for each eligible child.

Encourage clients to maintain records throughout the adoption process. Expenses incurred well before an adoption becomes final may still affect the credit.

How does the credit work for special needs adoptions?

Special needs adoptions receive different treatment under the adoption tax credit rules.

A child with special needs is a child for whom a state or Indian tribal government has determined that the child cannot or should not be returned to the home of the parents and that a specific factor or condition exists such that the child cannot reasonably be placed with adoptive parents without adoption assistance.

If a qualifying special-needs adoption becomes final during the year, the taxpayer is treated as having paid additional qualified adoption expenses equal to the excess of the applicable dollar limit over the qualified adoption expenses actually paid or incurred for that adoption in the current and prior years. For 2026, the aggregate amount generally cannot exceed $17,670 per child. The resulting credit remains subject to the income phaseout and other limitations.

The credit is allowed only in the year the adoption becomes final. The child must satisfy the statutory special-needs requirements and must be a citizen or resident of the United States, including its possessions. Circumstances alone do not determine eligibility for this treatment.

Additional restrictions apply to nonresident aliens. A nonresident alien generally may claim the adoption credit, but only if the individual makes an applicable election to file jointly with a U.S. citizen or resident spouse or qualifies under the special rules for certain married individuals filing separately.

Note: As of Sept. 15, 2026, proposed regulations may restrict the refunded portion of the adoption credit under the Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (PRWORA). If finalized, the regulations would require the taxpayer, or at least one spouse on a joint return, to be a U.S. citizen, U.S. national or qualified alien and make the required declaration under penalty of perjury to receive the refunded portion, have it credited against unpaid federal tax liabilities or have it offset against specified nontax liabilities. The proposed rules would not eliminate the taxpayer’s underlying Code entitlement to the nonrefundable portion of the credit.

How does the adoption tax credit work for foreign adoptions?

Foreign adoptions have different timing rules that tax professionals should recognize.

For a foreign adoption, the adoption tax credit is allowed only in the year the adoption becomes final. Once finalized, the taxpayer may claim qualified adoption expenses paid in the year of finalization as well as qualified expenses paid in prior years.

If the foreign adoption is not finalized, the credit is not allowed.

Determining when a foreign adoption becomes final can depend on the circumstances, including the adoption decree, the child's visa and whether a state court must re-adopt the child or recognize the foreign adoption decree.

Establishing when the adoption became final is an important part of determining the proper tax treatment. Don’t assume the date the child enters the United States determines when the adoption tax credit can be claimed.

Help clients get the adoption tax credit right

The adoption tax credit can provide a valuable tax benefit, but the calculation depends on more than adding up a client's adoption expenses. Taking the time to gather these facts can help practitioners accurately calculate the 2026 adoption tax credit and identify benefits clients may otherwise miss.

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