Adoption Credit

The adoption credit is the credit at Internal Revenue Code section 23 for qualified adoption expenses paid to legally adopt an eligible child. The official names differ from the popular one and are worth knowing: the Code heads section 23 "Adoption expenses," Congress called the 2025 amendment an "enhancement of adoption credit," and the IRS calls it the "adoption credit" in the revenue procedure that publishes its annual figures. "Adoption tax credit" is the phrase almost everyone searches for, and it describes the same provision. What the credit is worth turns on three separate limits applied in order: a per-child ceiling on the expenses counted, an income phase-out, and the taxpayer's own tax, with a refundable slice that escapes that last limit.

The dollar limitation is per adoption, across all years. Section 23(b)(1) provides that the aggregate qualified adoption expenses "which may be taken into account under subsection (a) for all taxable years with respect to the adoption of a child by the taxpayer" shall not exceed the limitation, which is $17,670 for 2026. So an adoption that runs across three tax years shares one ceiling rather than getting a fresh one each year. Two children adopted are two ceilings.

The year the expense is claimed is often not the year it is paid, and this is the rule most easily stated backwards. Section 23(a)(2)(A): an expense paid or incurred before the taxable year in which the adoption becomes final is allowed as a credit "for the taxable year following the taxable year during which such expense is paid or incurred." Section 23(a)(2)(B): an expense paid during or after the year the adoption becomes final is allowed in the year it is paid. A family that pays an agency fee in 2025 for an adoption that finalizes in 2027 claims that fee on the 2026 return, a year before the adoption is final. Section 23(e) overrides all of this for the adoption of a child who is not a citizen or resident of the United States: no credit is allowed at all unless the adoption becomes final, and pre-final expenses are then treated as paid in the year it does.

Refundability, and the carryforward that changed with it. Section 23(a)(4), added by Public Law 119-21 and effective for taxable years beginning after December 31, 2024, provides that so much of the credit "as does not exceed" $5,120 for 2026 is treated as a credit allowed under subpart C rather than subpart A. Subpart C is where the refundable credits live, so that slice can be paid out even when the family owes no tax. Anything above it stays nonrefundable. The same Act rewrote section 23(c)(1) so that only "the portion of the credit allowable under subsection (a) which is allowed under this subpart" carries forward. The familiar statement that unused adoption credit carries forward five years is now true only of the nonrefundable part, and section 23(c)(2) sets that limit precisely: no credit may be carried forward "to any taxable year following the fifth taxable year after the taxable year in which the credit arose," with credits treated as used on a first-in, first-out basis.

Why the two indexed amounts look so different from their statutory figures. The statute writes the dollar limitation as $10,000 and the refundable portion as $5,000. Section 23(h)(1) indexes both from a calendar-year 2001 base, except that section 23(h)(3) substitutes a 2024 base for the refundable amount. A later base year has had less cumulative inflation applied to it, which is why the refundable portion sits close to its statutory $5,000 while the overall limitation sits far above its $10,000. Section 23(h)(2) rounds to the nearest multiple of $10, which is why these figures end in a zero rather than the $50 steps used for tax brackets.

The phase-out reduces the credit proportionally, and its width does not move. Section 23(b)(2)(A) reduces the otherwise allowable credit by the amount that bears the same ratio to it as the excess of adjusted gross income over the threshold bears to $40,000. Section 23(b)(2)(B) computes that income without regard to sections 911, 931 and 933, the foreign earned income and possessions exclusions, which is why the IRS labels the measure modified adjusted gross income while the statute says adjusted gross income. Only the threshold is indexed, so the range stays exactly $40,000 wide however far the threshold rises.

Special needs is a different kind of claim. Under section 23(a)(3), where an adoption of a child with special needs becomes final in a year, the taxpayer is treated as having paid qualified adoption expenses equal to the excess of the dollar limitation over the expenses actually paid in that year and all prior years. It tops the claim up to the ceiling rather than adding to it, so a family with $6,000 of real expenses and a family with none both reach the same figure. Section 23(d)(3) defines a child with special needs by three conditions together: a State or Indian tribal government has determined the child cannot or should not return to the parents' home; the same government has determined that a specific factor or condition makes it unreasonable to expect placement without adoption assistance; and the child is a United States citizen or resident. The tribal government route was added by Public Law 119-21 for taxable years beginning after December 31, 2024.

No double benefit, and the employer exclusion comes off first. Section 23(b)(3)(A) denies the credit for any expense for which a deduction or credit is allowed elsewhere in the chapter, and (b)(3)(B) denies it for any expense funded under a federal, state or local program. Section 23(d)(1)(D) separately excludes from qualified adoption expenses anything "reimbursed under an employer program or otherwise." Where an employer runs an adoption assistance program under section 137, the IRS's own guidance states that the exclusion is in addition to the credit but that the same expenses cannot be used for both, and that any allowable exclusion must be claimed before any allowable credit. The employer's payment therefore reduces what is left to credit, and the two reliefs have their own separate limits.

Two filing conditions catch people out. Section 23(f)(1) applies rules similar to the joint-return requirement for the child and dependent care credit, so a married taxpayer generally has to file jointly to claim this credit. Section 23(f)(2) denies the credit unless the return includes the child's name, age and taxpayer identification number where known, with the Secretary permitted to accept other identifying information instead. Section 23(d)(1)(C) also excludes expenses of adopting the child of the taxpayer's spouse, which rules out a stepparent adoption.

The calculation runs in this order.

1. Total the qualified adoption expenses for this adoption, across every year, and cap them at the year's dollar limitation. For a special-needs adoption finalized this year, the deemed amount under section 23(a)(3) tops the figure up to that same limitation instead.
2. Subtract anything an employer already paid or reimbursed, and anything funded by a government program, under sections 23(d)(1)(D) and 23(b)(3).
3. Assign each expense to a year using section 23(a)(2): before the final year, claim it the year after payment; in or after the final year, claim it in the year of payment.
4. Apply the income phase-out by reducing the credit in the same proportion that the income excess bears to $40,000.
5. Split what is left. The first slice, up to the section 23(a)(4) amount, is refundable. The rest offsets tax only.
6. Carry forward only the nonrefundable remainder, for up to five years after the year the credit arose, oldest used first.

Two hypotheticals, both using the 2026 figures.

The refundable slice. The Adeyemis finalize an adoption and their allowable credit works out at $4,000, which is below the year's refundable amount, so the whole $4,000 is treated as a subpart C credit. Their federal income tax before credits is $1,200. The credit wipes out that $1,200 and the remaining $2,800 is paid to them as part of their refund. Before tax year 2025, the same family would have received $1,200 of benefit and carried $2,800 forward in the hope of owing tax later.

The phase-out. Suppose a different family's allowable credit before the income test is $12,000, and their modified adjusted gross income lands $10,000 above the start of the phase-out range. The reduction bears the same ratio to $12,000 as $10,000 bears to $40,000, which is one quarter. One quarter of $12,000 is $3,000, so the credit falls to $9,000. A family $30,000 into the range keeps one quarter of it, and a family $40,000 in keeps none.

Pros

• Since tax year 2025 a slice of the credit is refundable, which reaches adoptive families whose income tax is small or zero. That is a change in kind rather than in degree.
• A special-needs adoption is credited up to the full dollar limitation without documenting expenses, and a tribal government's determination now counts.
• The per-child ceiling covers the whole adoption rather than one year, so a process that stretches over three tax years does not have to fit into one.
• Both indexed amounts move with inflation each year, so the ceiling does not quietly erode.

Cons

• The nonrefundable part still depends on owing tax, and it expires five years after the year it arose.
• Only the nonrefundable part carries forward, so the newly refundable slice cannot be banked for a future year.
• The timing rule in section 23(a)(2) claims pre-finalization expenses a year after payment, so cash goes out well before the credit arrives.
• A domestic adoption that never finalizes can still generate a credit for expenses already claimed, but a foreign adoption that never finalizes generates none at all under section 23(e).
• The credit is unavailable for adopting a spouse's child, and for expenses an employer or a government program already covered.
• A married taxpayer generally has to file a joint return to claim it.