Buying a Home Overseas? The US Tax Questions You Should Ask Before Signing

Buying a home abroad can feel like a local decision: find the right place, arrange financing, sign the papers, move in. For a US citizen or Green Card holder, though, the tax picture can stretch across two systems. The US generally taxes citizens and resident aliens on worldwide income, so what happens to the property later can matter just as much as the purchase itself.

If you are buying property abroad as a US citizen, it helps to ask a few tax questions before the contract is final. Some choices are easy to change later. Ownership structure usually is not.

Will I live in the property, rent it out, or do both?

How you use the home affects its US tax treatment. A property used only as your residence does not create rental income simply because it is overseas. Start renting it, however, and the income generally enters your US tax return.

Mixed use adds another layer. If you spend part of the year there and rent it for the rest, some expenses may need to be divided between personal and rental use. A buyer planning to spend summers in a Lisbon apartment and rent it out the other nine months should think beyond the purchase price.

How should I own the property?

Buying in your own name may be straightforward, but local advisers sometimes recommend a company, partnership, or trust for legal, succession, or local-tax reasons.

That can make sense locally and still create extra US reporting. Directly owned foreign real estate itself is generally not a specified foreign financial asset for Form 8938. An interest in a foreign entity that owns the property, however, may be reportable if the requirements are met, and other international information returns can also apply depending on the structure.

“Everyone here buys through a company” is not quite enough analysis for a US taxpayer.

Could a foreign mortgage create US tax issues?

Possibly, especially when the mortgage is denominated in euros, pounds, Australian dollars, or another non-US currency.

US federal tax amounts generally have to be expressed in US dollars. Exchange-rate changes can therefore affect the US-dollar value of transactions connected with the property. Certain foreign-currency transactions may also create separately recognized exchange gains or losses. The treatment can be technical, so a large foreign-currency mortgage deserves review before refinancing or repayment.

What happens if I rent the home out?

Foreign rental income is generally reportable in the US, commonly on Schedule E. Eligible expenses may be deductible, while depreciation rules can apply to the building.

One detail catches people out: tangible property used predominantly outside the US is generally depreciated under the Alternative Depreciation System. For residential rental property placed in service after 2017, the ADS recovery period is generally 30 years.

Keep purchase records, invoices, rental statements, and exchange-rate information from day one. Reconstructing five years of renovation costs after deciding to sell is nobody’s idea of a good weekend.

What happens when I eventually sell?

A sale can create a US capital gain even when the property is overseas. If it was your main home and you meet the ownership and use tests, you may qualify to exclude up to US$250,000 of gain, or up to US$500,000 for many married couples filing jointly.

The country where the property is located may tax the sale too. A Foreign Tax Credit may sometimes help reduce double taxation when qualifying foreign income tax is paid, although limitations apply.

Because US tax calculations are made in dollars, the gain shown on your US return may not match the gain calculated under local rules.

Should I get US tax advice before signing?

The useful question is not simply, “Will buying a house create a US tax bill?” It is, “How will this property be owned, used, financed, and eventually sold?”

Reviewing those questions before signing can prevent a locally convenient structure from becoming a US reporting headache later. Once the company is formed, the mortgage drawn down, and the deed registered, changing course can be far more complicated.