Adoption Credit Calculator

The adoption credit is worth up to $17,670 per child in 2026, which is a large number for a credit. For most of its history it had a serious flaw: it was entirely non-refundable. A family whose tax liability was smaller than the credit could only use part of it, and had five years to absorb the rest — or lose it.

That flaw fell hardest on exactly the families the credit was meant to reach. Adoption is expensive, and the households taking it on are not uniformly high earners. A family owing $3,000 of tax could claim $17,000 of credit and see almost none of it in the year they actually paid the bills.

From 2025 a portion became refundable — $5,120 per child for 2026. That amount arrives whether or not you owe any tax. It does not solve the problem entirely, since the balance is still non-refundable, but it changes the credit from theoretical to partly real for lower-income adoptive families.

This is the least understood provision in the whole credit, and it is worth stating plainly: if a state or tribal government has determined that a child has special needs, you claim the full credit regardless of what you actually spent. Even if you spent nothing.

That is not an exaggeration or a rounding rule. A family adopting a child from foster care who is designated special needs, with all costs covered by the state, still claims the full $17,670 per child. The credit in that case is not a reimbursement of expenses at all; it is a payment for taking the adoption on.

"Special needs" here is a legal determination rather than a medical one, and the criteria vary by state. It generally covers children the state has determined would not be adopted without assistance — which frequently includes older children, sibling groups and children from foster care. Anyone adopting through the public system should establish whether the determination has been made, because it changes the arithmetic completely.

The phase-out runs across a $40,000 band of modified AGI, from $265,080 to $305,080 for 2026, and the reduction is rateable rather than a cliff. Both ends of the band are indexed, so they move with inflation — unlike the child tax credit thresholds, which do not.

Timing is the part that surprises people. For a domestic adoption that has not yet become final, qualified expenses are generally claimed in the year after they are paid, not the year of payment. Expenses paid in the year the adoption becomes final, and afterwards, are claimed in the year paid. Foreign adoptions follow a different rule again, with no credit at all until the adoption is final. Failed domestic adoptions can still support a credit; failed foreign adoptions generally cannot.

Many employers run adoption assistance programmes, and section 137 lets you exclude up to $17,670 of that from income for 2026. You cannot use the same dollar of expense twice — an expense excluded from income under the employer programme cannot also generate a credit. But you can use both on different expenses, and for a large adoption that is usually the right structure: exclude what the employer pays, credit what you pay yourself.