Planning a move overseas with your kids and assuming your US taxes will quietly stay in the background? It's a common assumption, but one that can lead to unexpected reporting obligations once you're settled abroad.

The United States taxes its citizens regardless of where they live, and that means certain financial reporting requirements continue even after you've relocated. One of the most important is the Foreign Account Tax Compliance Act (FATCA), which can affect not only your own foreign financial accounts but, in some cases, those held by your US citizen children as well.

Whether you're settling in Lisbon, Singapore, or anywhere else, FATCA follows US citizens wherever they live. Understanding how the rules apply to your family from the start can help you avoid unnecessary stress, filing mistakes, and compliance issues later on.

What FATCA Actually Is?

FATCA stands for the Foreign Account Tax Compliance Act, a US law passed in 2010 aimed at preventing tax evasion through offshore accounts. According to the IRS's own summary of FATCA reporting requirements, US taxpayers holding foreign financial assets above a set reporting threshold must report those assets to the IRS on Form 8938, a requirement that exists in addition to the long-standing FBAR filing for foreign bank accounts.

In plain terms, this means the US government wants visibility into money US citizens and residents hold in foreign banks, brokerage accounts, and certain other financial assets, no matter where in the world they live.

Why This Matters More Once You Have Kids Involved

Moving abroad with children adds a layer most single expats don't have to think through as carefully. If your children are US citizens, whether born in the US or born abroad to a US citizen parent, they carry their own FATCA and tax filing obligations independently of yours.

That means custodial accounts opened in a child's name, education savings accounts set up in the country you've moved to, or even a local bank account meant to teach a teenager about saving can all potentially trigger reporting requirements once the balances cross certain thresholds.

Common Situations That Catch Families Off Guard

A few scenarios show up again and again with expat families who didn't realize FATCA applied to their situation:

●     Opening a local savings account for a child, which still counts as a foreign financial account under US rules

●     Local pension or retirement-style accounts that a spouse or older child might have through employment abroad

●     Joint accounts between a US citizen parent and a non-US citizen spouse, which can still trigger reporting depending on how the account is structured

●     Education or trust accounts set up by grandparents or other family members in the country of residence

None of these are unusual financial decisions for a family settling into a new country. They just come with reporting implications that are easy to miss if nobody flags them early.

Why Foreign Banks Sometimes Make This Harder

One frustrating side effect of FATCA is that some foreign banks are hesitant to open accounts for US citizens at all, since FATCA requires foreign financial institutions to report US-linked accounts directly to the IRS or face a steep withholding penalty on their own US-sourced income. Families have reported difficulty opening basic accounts, or even purchasing property, simply because of a US citizenship disclosure on the application.

This isn't something families can avoid by simply not mentioning citizenship. Foreign banks are required to ask, and failing to disclose it accurately can create bigger problems down the line than the account-opening friction itself.

Getting FATCA Reporting Right

Many reporting issues arise not because families intentionally ignore the rules, but because they misunderstand what needs to be reported. Assuming a jointly owned account is exempt, overlooking a child's foreign account, or forgetting to include a newly opened investment account are all common mistakes that can create unnecessary filing issues.

Staying on top of FATCA compliance becomes much easier when you understand your reporting obligations before filing season arrives. Services like MyExpatTaxes help Americans abroad identify which foreign accounts and financial assets may need to be reported each year, reducing the risk of avoidable mistakes and making annual reporting more straightforward.

A Few Practical Steps for Families Abroad

A little organization early on makes a real difference later:

●     Track every foreign account opened in a family member's name, including accounts for kids, from the moment it's opened

●     Keep annual statements and balance records organized, since thresholds are based on account values at specific points during the year

●     Confirm each child's citizenship status clearly, since US citizenship carries its own independent filing obligations

●     Set a yearly reminder to review whether any new accounts or assets need to be added to that year's filing

These simple habits make annual reporting much easier and reduce the risk of missed filings or costly mistakes as your family's financial situation changes.

Conclusion

FATCA doesn't stop being relevant just because a family has settled comfortably into life abroad, and it applies just as much to children's accounts as it does to the parents'. Understanding what triggers a filing requirement, staying organized year to year, and getting help early rather than after a problem surfaces is what keeps an international move from turning into an unexpected tax headache.