Moving to Switzerland from the USA: tax, FATCA, permits

Americans can move to Switzerland without working, but they bring the US tax system with them: US citizens are taxed on worldwide income wherever they live, and foreign accounts trigger FBAR and often Form 8938 reporting. On the Swiss side, Americans apply as non-EU nationals (a retiree permit from 55 or a permit based on cantonal fiscal interest), and the Swiss–US treaty is one of those that require a modified lump sum. None of this is a reason not to come, but it does mean planning with a US adviser from day one.

Key facts (as of September 2026)

What makes the US different

Most people who leave a country leave its income tax behind. Americans do not. The IRS taxes US citizens on their worldwide income wherever they live, so a move to Switzerland adds a second set of obligations rather than replacing the first.

That shapes almost every decision: which accounts you hold, which investment products you buy, how a Swiss tax regime interacts with your US return. We say plainly that we do not give US tax advice or suggest structures for US persons. What we do is make sure the Swiss side is built in a way your US adviser can work with, and flag early where the two systems meet.

US reporting you keep after moving

These are the reporting points that most often come up for Americans with Swiss accounts.

• FBAR (FinCEN Form 114). If the combined value of your foreign financial accounts exceeds USD 10,000 at any time during the year, you file an FBAR. It goes to FinCEN, not the IRS, and it is separate from your tax return.
• Form 8938 (FATCA). Filed with your tax return. For taxpayers living abroad, the threshold for a single filer is USD 200,000 at year-end or USD 300,000 at any time during the year; for joint filers the thresholds double.
• PFIC reporting (Form 8621). A foreign corporation is a passive foreign investment company if at least 75% of its gross income is passive, or at least 50% of its assets produce passive income. Whether a particular fund you are offered falls within that definition is exactly the kind of question to put to your US adviser before you invest, not after.

Banking in Switzerland as an American

Expect your Swiss bank to ask about your US status when you open an account and to document it. Beyond that, what a bank will offer a US client varies from one institution to another. We suggest raising your US status at the first meeting, asking which investment products the bank can provide to you, and sharing the answer with your US adviser. Swiss investment income is subject to a 35% Swiss withholding tax, which Swiss residents can reclaim by declaring the income.

Permit routes for US citizens

The US has no free-movement agreement with Switzerland, so Americans use the same routes as any third-country national. If you plan to work here, other routes apply that are outside the scope of this guide. For people who will not work in Switzerland:

Retiree permit (art. 28 AIG). You must be at least 55, have special personal ties to Switzerland, have sufficient means reliably available for life, and give up gainful activity both in Switzerland and abroad (managing your own assets is allowed). Ties mean long or repeated past stays, close family here or Swiss ancestry. Owning property or having business links is not enough. Our guide to retiring in Switzerland looks at this route in detail.

Fiscal-interest permit (art. 30 para. 1 lit. b AIG, art. 32 VZAE). A canton may admit you if it sees a significant fiscal interest. You must move your centre of life here and spend most of your time in Switzerland. Work is allowed only abroad, apart from managing your own assets. Geneva publishes a figure (an expenditure base of CHF 750,000 for third-country nationals); most cantons do not. See our guide to residence for financially independent non-EU nationals.

For both routes the canton has wide discretion and SEM approval is mandatory. A spouse and unmarried children under 18 may join you.

US nationals may be granted a C permit after five years, at the canton's discretion (there is no legal right) and if integration criteria, including language, are met. Otherwise the general rule is ten years, including the last five continuously on a B permit.

The modified lump sum for Americans

Swiss lump-sum taxation taxes you on worldwide living costs rather than income and wealth, with a federal minimum base of CHF 435,000 in 2026, higher or lower cantonal minimums, and a floor of seven times your rent or rental value. It is available to non-Swiss nationals who do not work in Switzerland.

The Swiss–US tax treaty is one of seven (with Belgium, Germany, Italy, Norway, Canada and Austria) where treaty benefits are only granted to a lump-sum taxpayer if all US-source income is taxed in Switzerland as under ordinary taxation. That income is added to the base and taxed at the rate for your total income, and the maximum rate applies if full data is not provided.

For many Americans, most of their investment income is US-source, so the modified lump sum can bring much of it into the Swiss calculation. Whether the lump sum still makes sense compared with ordinary taxation depends on your figures and on how your US return treats Swiss tax paid. That is a joint calculation for your Swiss and US advisers. Our guide to modified lump-sum tax and treaties explains the Swiss mechanics.

Other Swiss taxes to know

• Wealth tax is cantonal only; there is no federal wealth tax.
• Capital gains on private movable assets are tax-free in Switzerland. How the US treats the same gains is a separate question.
• Inheritance and gift tax are cantonal. Spouses are exempt everywhere and children in most cantons; Schwyz and Obwalden levy neither. In Geneva, these exemptions do not apply if the deceased or donor was taxed on a lump sum in one of the last three final assessments.

Common pitfalls

• Assuming Swiss residence ends US filing. It does not.
• Buying local funds without US advice. PFIC rules may apply.
• Opting for the lump sum without modelling US-source income. The modified rules can change the picture.
• Treating property as a residence route. Buying a home in Switzerland gives no right to a permit.

How we help

We handle the Swiss side (canton choice, lump-sum or ordinary taxation, the permit file and ongoing Swiss compliance) and work alongside your US adviser so both returns fit together. See our Americas page or start with the eligibility check.

This guide is general information as of 30 September 2026 and is not tax or legal advice; your situation needs a cantonal ruling and advice from a qualified US tax adviser.