Most expat tax topics are about avoiding a bill. This one's the opposite: if you have US-citizen children, you may be owed an actual refund — unless the FEIE quietly cancels it.

Here's a rare piece of good news in expat tax: if you have US-citizen children, you may be entitled to a real cash refund from the IRS — even if you live abroad and owe no US tax. The mechanism is the refundable Additional Child Tax Credit (ACTC), and plenty of eligible expat families never claim it.

The catch is a planning trap: the most popular expat tax tool, the FEIE, can eliminate this refund without you realizing. This guide explains how the credit works abroad, who qualifies, and how to avoid throwing the refund away.

This is general information, not tax advice. Credit amounts and thresholds are inflation-adjusted; verify the current year's figures.

How the Child Tax Credit works for expats

The Child Tax Credit is worth up to $2,000 per qualifying child, and a portion of it — the Additional Child Tax Credit — is refundable, meaning it can be paid to you as a refund (up to roughly $1,700 per child, inflation-adjusted) even when your US tax is zero. For an expat whose income tax is already wiped out by foreign taxes or exclusions, that refundable piece is the part that turns into actual money.

Who qualifies

The child must be under 17 at year-end and have a valid Social Security Number — an ITIN doesn't qualify for the credit.
The child must be a US citizen, national, or resident, and meet the relationship, residency, and support tests (generally, your child living with you).
You need some earned income above a threshold (around $2,500) for the refundable portion — the credit scales with earned income.

The SSN requirement matters for expat families especially: if your child was born abroad and doesn't yet have an SSN, you'll need to obtain one (often via a US consulate) before you can claim the credit.

The FEIE trap that cancels your refund

This is the part that costs families money. The refundable ACTC is based on your earned income — but the Foreign Earned Income Exclusion removes earned income from your return. If you exclude all of your income with the FEIE, you can be left with no qualifying earned income to support the refundable credit, and the refund drops to $0.

Often the Foreign Tax Credit wins for parents. Because the FTC credits foreign tax without excluding your income, it can leave your earned income intact — preserving the refundable Child Tax Credit — while still zeroing out your US tax. For families in taxed countries, switching from the FEIE to the FTC can be the difference between a $0 refund and several thousand dollars.

It's not automatic that the FTC wins — it depends on your income, your foreign tax rate, and your number of kids — but if you have children and you've been defaulting to the FEIE, this is exactly the calculation worth running both ways.

How to claim it

You claim the credit on your Form 1040 with Schedule 8812, which computes the refundable portion. There's no separate "expat" version — the difference for expats is entirely in the FEIE-vs-FTC choice that determines whether you have the earned income to support it. Get that decision right, and the credit follows.

Don't leave your refund on the table

If you have US-citizen kids, the FEIE-vs-FTC choice can be worth thousands in refundable credit. atamatax walks through your expat return so that decision is made with your real numbers, not a default. Start a free draft and see what you're owed.

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Authoritative sources

Reader questions that shaped this guide came from real US-expat discussions on r/USExpatTaxes. Last reviewed June 2026 — credit amounts are inflation-adjusted annually, so verify the current figures before filing.

The Additional Child Tax Credit for US Expats: How to Get a Refund From Abroad