The Child Tax Credit from abroad

The Child Tax Credit (CTC) is one of the most valuable benefits in the U.S. tax code for families. For tax year 2025, it's worth up to $2,000 per qualifying child, and up to $1,700 per child is refundable as the Additional Child Tax Credit (ACTC) — meaning you can receive it as a refund even if you owe no U.S. tax.

For American expats with U.S.-citizen kids, this is real money. It's also the most common reason long-term expat families use the Foreign Tax Credit instead of the Foreign Earned Income Exclusion — because FEIE inadvertently destroys the refundable portion.

Who is a "qualifying child"

To count for the CTC, a child must meet all of these:

1. Relationship: your child, stepchild, foster child, sibling, step-sibling, half-sibling, or a descendant of any of these (grandchild, niece, nephew).
2. Age: under 17 at the end of the tax year.
3. Support: did not provide more than half their own support during the year.
4. Residency: lived with you for more than half the year.
5. Citizenship: a U.S. citizen, U.S. national, or U.S. resident alien.
6. Dependent: properly claimed as a dependent on your return.
7. SSN: has a valid Social Security Number issued before the return's due date.

For expat families, the two that matter most are citizenship and SSN:

• A child born abroad to U.S.-citizen parents is generally a U.S. citizen automatically (subject to the U.S. citizen parent meeting certain physical-presence-in-the-U.S. requirements before the child's birth — different from FEIE residency). Birthright citizens get an SSN through the U.S. embassy.
• A child without an SSN (only an ITIN) does not qualify for the CTC, only the smaller $500 Credit for Other Dependents.

If your child was born abroad and you haven't yet registered the birth with the U.S. embassy (CRBA — Consular Report of Birth Abroad) and obtained an SSN, that's the prerequisite. Without an SSN, no CTC.

How much the credit is worth

For tax year 2025:

• $2,000 per qualifying child total credit.
• Up to $1,700 per child is refundable — meaning paid to you as cash even if your U.S. tax liability is $0.
• Non-refundable portion ($300 per child) reduces your U.S. tax dollar-for-dollar, but doesn't generate a refund beyond that.

The credit phases out at high income: starting at $400,000 modified AGI (married filing jointly) or $200,000 (other filers), it reduces by $50 for every $1,000 above the threshold. Most expat families are well below these thresholds and get the full credit.

The FEIE killer

This is the single most important point in this article.

The refundable portion of the CTC (the $1,700) requires earned income that's actually taxable on your return. Specifically, the formula uses your "earned income" as defined — and earned income excluded under FEIE doesn't count.

So a typical expat family using FEIE:

• Family has $90,000 salary, fully excluded by FEIE.
• Earned income for ACTC purposes: $0.
• ACTC available: $0.
• Total CTC: $300 per child non-refundable (only useful if you have other U.S. tax to offset, which most FEIE filers don't).

Net CTC benefit using FEIE: roughly $0.

Now the same family using FTC instead:

• Family has $90,000 salary, fully taxable on return; FTC offsets foreign tax already paid.
• Earned income for ACTC purposes: $90,000.
• ACTC available: up to $1,700 per child.
• Total CTC: up to $2,000 per child.

Net CTC benefit using FTC: $2,000 per child.

For a family with two U.S.-citizen kids, that's a $4,000 annual swing — every year, for every kid under 17. Over a 15-year expat stint with two kids, the difference compounds to tens of thousands of dollars.

This is why a family in a high-tax country (Germany, France, UK, Korea, Japan, Canada) — where FTC and FEIE both produce $0 U.S. tax — almost always picks FTC. The U.S. tax outcome is the same; the refundable CTC isn't.

The ACTC formula

The refundable portion is calculated as the lesser of:

• The unused non-refundable CTC, or
• 15% × (earned income − $2,500), capped at $1,700 per child.

So you need earned income above $2,500 to get any ACTC at all, and you don't max it out per child until earned income is well above the $2,500 floor. For one child, the max is reached at earned income of about $13,800 ($2,500 + $1,700/0.15). For two children, about $25,200.

Most expat families easily clear these thresholds with FTC. The trap is purely the FEIE side.

Mixed-status families

A common situation: one parent is a U.S. citizen, one is not, and the kids are U.S. citizens (born to a U.S.-citizen parent).

• If you file Married Filing Jointly (electing to treat the non-U.S. spouse as a U.S. resident), the non-U.S. spouse's worldwide income comes onto the return — but you get full MFJ thresholds and the CTC works normally.
• If you file Married Filing Separately, your filing thresholds collapse (effectively $5), but the CTC is still available to the U.S.-citizen parent for the U.S.-citizen children — provided they're claimed as dependents on the U.S. citizen's return.

For most mixed-status families with U.S.-citizen kids and a foreign-citizen spouse, MFJ is the better answer, because the income loss from including the spouse's income is usually offset by FTC, lower brackets, and the CTC mechanics.

Credit for Other Dependents

If your child doesn't have an SSN (only an ITIN), or is over 17 but still your dependent, they may qualify for the Credit for Other Dependents — $500, non-refundable.

This is the credit for:

• Dependents with ITINs only
• Adult disabled dependents
• Elderly parents you support
• A U.S.-citizen child over 17 still in college

The $500 ODC is non-refundable, so for an FEIE family with $0 U.S. tax, it's worth $0.

The Earned Income Tax Credit and FEIE

The EITC is a separate credit for low- and moderate-income workers — refundable, worth up to $7,830 in 2025 for a family with three or more kids. It's huge.

But the EITC has a strict rule: it's not available to taxpayers who claim the FEIE. Period. Even one dollar of FEIE-excluded income disqualifies you from the EITC for the entire year.

Combined with the CTC issue, this is another massive vote in favor of FTC over FEIE for moderate-income expat families with kids.

Filing the credit

The CTC is claimed on Form 1040 and computed on Schedule 8812. The refundable portion flows from Schedule 8812 to your Form 1040 as a refundable credit.

Practical filing notes:

• Each qualifying child must have an SSN listed on the return, issued by the time the return is filed (including extensions).
• The child must be claimed as a dependent — same return, same dependent listing.
• You'll need to document the relationship and residency if asked under audit (rare, but possible).

Other family-related credits to check

While you're working through Schedule 8812, also consider:

• Foreign Earned Income Exclusion for working spouse: each spouse can claim FEIE independently if both qualify, doubling the exclusion.
• Dependent care credit: small, non-refundable, but available for childcare costs while you work — even at foreign daycare/au pair. Hard to qualify abroad due to specific SSN/ITIN requirements for the care provider.
• American Opportunity Credit / Lifetime Learning Credit: for U.S. higher education costs. Available even if the school is foreign, as long as it's an "eligible educational institution" with a DOE-issued OPE-ID. Many foreign universities qualify; check the eligible school list.

Common mistakes

• Filing FEIE without checking the CTC math. The dollar value of the CTC often exceeds the value of FEIE for families.
• Not registering kids born abroad with the embassy. No CRBA → no SSN → no CTC.
• Claiming the CTC for a child with an ITIN only. Doesn't qualify; only the $500 ODC.
• Forgetting Schedule 8812. Software usually catches this but DIY filers miss it.
• Using FEIE and ignoring the EITC disqualification. A family that could qualify for EITC + CTC + ACTC under FTC is throwing away thousands by reflexively using FEIE.
• Mixed-status families filing MFS by default. Run the MFJ math; it's almost always better when kids are U.S. citizens.

Next steps

• FEIE vs. Foreign Tax Credit — the strategic choice
• Foreign Tax Credit (Form 1116)
• Kids born abroad: citizenship and tax
• Marrying a non-U.S. citizen: tax implications