ITIN vs SSN 2026 Child Tax Credit Calculator
Confirm 2026 Child Tax Credit eligibility for ITIN families. Under IRC Section 24 and 6109, the $2,000 CTC requires the child to have a valid SSN issued before the return due date. ITIN children qualify only for the $500 Credit for Other Dependents (ODC). This tool calculates both, including the refundable Additional CTC portion.
| SSN children eligible for CTC | — |
| ITIN children → ODC only | — |
| Other dependents → ODC | — |
| Phase-out (over $200K / $400K MFJ) | — |
| Refundable ACTC cap ($1,700 / child) | — |
| Total CTC + ODC | — |
The 2026 Child Tax Credit is worth up to $2,000 per qualifying child under 17, but only if that child has a Social Security Number issued before the tax return due date (including extensions). Children with only an Individual Taxpayer Identification Number (ITIN) do not qualify for the CTC under IRC Section 24(h)(7). They may qualify for the $500 nonrefundable Credit for Other Dependents (ODC) instead.
SSN Requirement Under TCJA Rules
The Tax Cuts and Jobs Act of 2017 added the SSN requirement at IRC Section 24(h)(7): the qualifying child must have a valid SSN issued before the due date of the return (including extensions). An ITIN, even one applied for in the same return via Form W-7, does not satisfy this rule. The parent or filer can still use an ITIN — only the child's identifier matters for CTC. IRC Section 6109 governs taxpayer identification numbers.
Credit for Other Dependents ($500 ODC)
For ITIN children under 17, or for any dependent who is not a "qualifying child" for CTC (including ITIN children, older children up to 18, college students up to 23, and dependent relatives), the filer can claim the $500 nonrefundable Credit for Other Dependents per dependent. The ODC is not refundable — it can reduce tax to zero but produces no refund. Same income phase-out as CTC: $200,000 single, $400,000 MFJ.
Refundable Additional CTC (ACTC)
Up to $1,700 per qualifying SSN child is refundable in 2026 (inflation-adjusted from the $1,400 TCJA base). The refundable portion is the lesser of: $1,700 x SSN-children, or 15% x (earned income minus $2,500). This is the Additional Child Tax Credit (ACTC), computed on Schedule 8812. ITIN children never contribute to the refundable portion — the ODC is non-refundable entirely. Earned-income floor of $2,500 catches very-low-income filers.
Common Mistakes for ITIN Families
(1) Claiming CTC for an ITIN child — IRS will deny and may assess accuracy penalty. (2) Missing the ODC for ITIN children — $500 per child left on the table. (3) Applying for a child's SSN after April 15 — too late for the current return unless extension was filed. (4) Confusing nonrefundable ODC with refundable ACTC — ODC only offsets tax due; ACTC creates a refund. Sources: IRC Section 24 (CTC), IRC Section 24(h)(7) (SSN requirement, TCJA), IRC Section 6109 (TIN), IRS Schedule 8812 instructions, IRS Publication 972.
Last updated May 2026. Sources cited in tool output.