28 August 2026

FBAR, FATCA, and Owning Property in Spain: What US Citizens Must Report

US citizens who own property on the Costa del Sol usually don't have to report the property itself to the IRS or FinCEN. But the Spanish bank account used to pay the mortgage, utilities, or community fees can trigger two separate filings: FBAR (FinCEN Form 114) if foreign accounts exceed $10,000 at any point in the year, and FATCA (IRS Form 8938) at higher thresholds if you live abroad.

A note before you dive in: immigration and tax rules shift — sometimes quickly. What follows reflects our latest research, but you should always confirm the current specifics with a licensed advisor before acting on them.

Most buyers hear about this for the first time months after closing, not before it. It has nothing to do with Spanish property tax and nothing to do with the US-Spain tax treaty's rules on double taxation. It's a separate, older obligation: the US requires its citizens to disclose certain foreign financial accounts and assets no matter where in the world they live or hold them.

Here's what FBAR and FATCA actually are, when they apply to a Costa del Sol property owner, and why the trigger is almost always the bank account attached to the property, not the property itself.

The bank account is the trigger, not the property

This is the one distinction that clears up most of the confusion.

Real estate held directly in your own name (the villa, apartment, or townhouse itself) is not a "foreign financial account" or a "specified foreign financial asset" under FBAR or FATCA. You don't report the deed. You don't report the appraised value. Owning a house in Spain, on its own, creates no filing obligation.

What does create one is the Spanish bank account you'll almost certainly open to run that property: the account that pays the mortgage, the IBI (Spain's property tax), community fees, utility bills, or collects rental income if you let the place out part of the year. That account is a foreign financial account, and once it's open and funded, two US reporting regimes come into play.

One exception is worth flagging early, because it changes everything downstream: buyers who hold the property through a Spanish company or a trust rather than their own name face a different, more complex set of filings. More on that further down.

FBAR: a low threshold that catches people off guard

FBAR ("Report of Foreign Bank and Financial Accounts") is filed as FinCEN Form 114, not with the IRS but with FinCEN, the Financial Crimes Enforcement Network at the US Treasury. It's separate from your Form 1040, with its own deadline that typically tracks the tax filing deadline, plus an automatic extension.

The rule itself is short: you must file an FBAR if the combined value of all your foreign financial accounts exceeds $10,000 at any point during the calendar year (as of July 2026, per FinCEN).

Two words in that sentence do most of the damage. "Combined" means every foreign account you have signature authority over gets added together, not just the one tied to your Spanish property — €6,000 in a Spanish account plus €5,000 sitting in another foreign account crosses the line, even though neither account did on its own. And "any point" is not a year-end snapshot test. Touch $10,001 for a single day, drop back to zero the next, and you've still triggered the filing requirement for that year.

Why Costa del Sol buyers cross this threshold without realizing it

The scenario plays out the same way for a lot of buyers, so it's worth walking through once.

You're buying a resale apartment in Marbella. Your lawyer or the bank asks you to wire funds ahead of completion: a deposit, a renovation budget, or reserve funds the mortgage lender wants parked in a local account before final approval. You wire $40,000 into a new Spanish account to have it ready. Two weeks later it's disbursed at closing, and the balance drops back to near zero.

It's tempting to assume that money barely counts. It sat there briefly, and it's basically gone now. But it counts: the $10,000 threshold was crossed, however briefly, and that alone creates the FBAR obligation for the year, regardless of the December 31st balance and regardless of the funds being earmarked for a one-time purchase rather than sitting there as savings.

The same logic applies to an account kept open afterward for the mortgage, community fees, utilities, or rental income. Even a modest account that fluctuates with seasonal expenses can cross $10,000 the moment you wire in a lump sum to cover a year of costs in advance.

FATCA: a separate filing with much higher thresholds

FATCA (the Foreign Account Tax Compliance Act) is a second, distinct requirement: IRS Form 8938, "Statement of Specified Foreign Financial Assets." Unlike FBAR, it's filed with your Form 1040, not separately with FinCEN.

Its thresholds sit well above FBAR's and shift with filing status and residency. A single filer living abroad must file once specified foreign financial assets exceed $200,000 at year-end, or $300,000 at any point during the year (as of July 2026, per the IRS). Those figures drop for single filers living in the US and shift again for joint filers; confirm the exact number with a cross-border CPA for your situation.

Because FATCA sits so far above the $10,000 FBAR trigger, a Costa del Sol owner with one Spanish account for routine property expenses will often owe an FBAR filing without ever approaching FATCA territory. Larger reserve funds, investment accounts, or several properties' worth of foreign assets change that math. The two filings aren't mutually exclusive, and owing both in the same year is common.

FBAR vs. FATCA at a glance

| | FBAR (FinCEN Form 114) | FATCA (IRS Form 8938) | |---|---|---| | Filed with | FinCEN (US Treasury), separately from your tax return | Attached to your IRS Form 1040 | | Threshold (as of July 2026) | $10,000 aggregate, at any point during the year | $200,000 at year-end / $300,000 at any point (single filer living abroad; thresholds differ for other statuses) | | What counts | All foreign financial accounts (bank, brokerage, etc.), aggregated | Specified foreign financial assets, a broader category than just bank accounts | | Does the property itself count? | No, if held directly in your own name | No, if held directly in your own name | | Can both apply in the same year? | Yes | Yes |

The tax treaty doesn't make this go away

It's a reasonable assumption: the US and Spain have a tax treaty built to stop Americans from being taxed twice on the same income, so surely it covers FBAR and FATCA too. It doesn't.

The treaty's "saving clause" (Article 1) preserves the United States' right to tax, and to require reporting from, its own citizens regardless of where they live or where their assets sit. FBAR and FATCA are disclosure regimes, separate from income tax, and the treaty waives neither.

Where the treaty genuinely helps is actual double taxation on income: Spanish property tax or Spanish income tax you've paid can generally be credited against what you owe the IRS through a Foreign Tax Credit (treaty Article 24). That mechanism solves for paying tax twice on the same income. FBAR and FATCA solve for something else entirely: disclosing that an account or asset exists, independent of whether any extra tax is owed on it. Skipping the disclosure when it's required is its own compliance issue, separate from tax owed, with its own penalty structure.

Direct ownership vs. a company or trust structure

Everything above assumes personal ownership: the way most American buyers structure a Costa del Sol purchase, and the version that keeps the reporting picture contained to FBAR and, potentially, FATCA on the associated bank accounts.

Buying through a Spanish company (a sociedad limitada, commonly) or a trust changes that picture. Ownership through a foreign entity can pull in additional IRS filings (Form 8865 for foreign partnerships, Form 5471 for foreign corporations, Form 3520 for foreign trusts), layered on top of, or instead of, FBAR and FATCA. Each of those forms carries its own rules and thresholds, and getting one wrong tends to be a bigger headache than a straightforward FBAR filing ever is.

That makes the ownership decision worth settling with a professional before closing, not after. Personal name versus a company or trust has real, lasting reporting consequences, and it's a far easier call to get right at the outset than to unwind years later.

It's disclosure, not optional paperwork

For most American buyers on the Costa del Sol, the actual compliance load is light: one additional form declaring the existence and approximate value of a Spanish bank account, filed alongside (but separately from) the regular US tax return, and it typically doesn't create extra tax owed on its own. It is, however, a genuine legal obligation rather than a formality, and skipping it when required carries real civil penalties, with criminal exposure in cases the IRS deems willful. "I didn't know" rarely lands well with the IRS or FinCEN, which is the whole case for getting this right from the outset rather than catching it later.

Working with the right professionals

Luumare Estate is a real estate agency, not a tax advisory firm, and nothing here is personalized tax advice. What years of helping American buyers navigate the Costa del Sol market has taught us is that these reporting questions come up on nearly every purchase. They're best answered by a qualified cross-border CPA fluent in both US and Spanish tax law, ideally before you open a Spanish bank account or settle on an ownership structure, and again each year as you prepare your US filings.

If you're considering a property on the Costa del Sol and want guidance from people who know both the market and the practical realities American buyers face, we'd be glad to help, including an introduction to trusted cross-border tax professionals through our concierge service (see our services page). Reach out to Luumare Estate for a personal, no-pressure conversation about your plans, and bring the specific numbers to a qualified CPA to confirm exactly how FBAR and FATCA apply to your situation.