FATCA & Form 8938 for Americans in Switzerland

How FATCA affects U.S. persons with Swiss accounts, how Form 8938 differs from the FBAR, and what Swiss banks report.

By Danilson Ramos · Founder, Atamatax

Updated July 2026

Tax review partner: onboarding in progress. This article has not yet been independently reviewed by a credentialed professional — every figure cites its IRS source so you can verify it directly.

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FATCA is the U.S. law behind much of the reporting Americans abroad encounter. It has two sides: Swiss banks report U.S. account holders to the authorities, and U.S. persons may have to file Form 8938 with their tax return.

Why your Swiss bank asks if you're American

Under FATCA, Swiss financial institutions identify and report U.S. account holders. That's why you may have been asked to confirm your U.S. status or complete a form. It also means consistency between what your bank reports and what you file matters.

Form 8938 vs the FBAR

	FBAR (FinCEN 114)	Form 8938 (FATCA)
Filed with	FinCEN, separately	Your tax return
Threshold	$10,000 combined peak	Higher; varies by filing status & residence
Scope	Financial accounts	Specified foreign financial assets

Many U.S. persons in Switzerland file both the FBAR and Form 8938. They overlap but are not the same.

Authorities cited

IRS Form 8938 — About Form 8938 — Statement of Specified Foreign Financial Assets
IRC §6038D — IRC §6038D — Information reporting of specified foreign financial assets (Form 8938)
FinCEN Form 114 (FBAR) — Report of Foreign Bank and Financial Accounts (FBAR)
31 CFR §1010.350 — 31 CFR §1010.350 — FBAR (FinCEN Form 114) filing requirement and $10,000 threshold

Primary sources (Cornell Legal Information Institute for the US Code and CFR; IRS.gov for forms, procedures, and treaty documents). This page is general information, not individualized tax or legal advice.

Atamatax provides tax preparation support and educational resources. This website does not constitute legal or tax advice.

Frequently asked questions

Does FATCA mean I owe more tax?

No, not by itself — FATCA is mainly about reporting. Whether you owe U.S. tax depends on your income, credits and exclusions, but the reporting is required regardless.

My Swiss bank sent me a FATCA form — what should I do?

Confirm your U.S. status — that's routine — then make sure your U.S. filings (return, Form 8938, FBAR) are consistent, which is the more important step. Start with the Tax Risk Check.

What are the Form 8938 thresholds?

The Form 8938 thresholds are higher than the FBAR's and depend on your filing status and whether you live abroad. Because they vary, confirm the current figures for your situation.