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Who we help · Dual citizens

Financial advice for dual citizens in Switzerland

Two passports rarely mean two tax bills - but they almost always mean two reporting systems, two inheritance regimes and a banking trail across borders.

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In short

If you live in Switzerland, you are tax-resident here regardless of how many passports you hold - Swiss tax follows residence, not citizenship. The exception is US citizenship (and US green-card status), which imposes worldwide US tax filing on top of Swiss tax for life; for that case see our dedicated US-persons page. As of 2025, the practical issues for non-US dual citizens are: automatic exchange of financial-account information (CRS) sending your Swiss balances to every country where you also hold tax residency or, for some jurisdictions, citizenship; succession rules that can be claimed by more than one country at death; and Swiss banks that screen account openings by nationality.

What you face

What dual citizens in Switzerland have to figure out

  1. 01

    Tax residency vs citizenship - two different tests

    Switzerland (and almost every other country except the US and Eritrea) taxes on residence, not citizenship. Living in Switzerland means full Swiss tax; your second passport, on its own, creates no second tax bill - but it can create reporting and succession exposure.

  2. 02

    The US-citizen exception

    If one of your two citizenships is US, you remain liable to US federal tax, FBAR and FATCA reporting on worldwide income and assets for as long as you hold the citizenship - regardless of Swiss residence. This is a different game and gets its own page.

  3. 03

    CRS / automatic exchange of information

    Swiss banks report account balances and income to your country (or countries) of tax residence under the OECD Common Reporting Standard - and many banks ask for self-certification of every nationality. Keeping records consistent across jurisdictions matters.

  4. 04

    Cross-border succession and forced heirship

    Under the Swiss Federal Act on Private International Law, foreign-national residents can in many cases elect their home-country succession law in their will - which changes who inherits, in what share, and which forced-heirship rules apply. The default rule alone is rarely the right answer.

  5. 05

    Inheritance and gift tax in two countries

    Even when Switzerland charges no inheritance tax between spouses or to direct descendants in your canton, the other country of citizenship or asset location may still claim its own inheritance or gift tax on the same estate. Few double-taxation treaties cover succession.

  6. 06

    Banking and KYC across jurisdictions

    Swiss banks routinely restrict, decline or close accounts for clients with certain second nationalities (notably US, but also others) or require additional documentation. Choosing a bank that genuinely services your nationality profile saves repeated forced re-onboarding.

  7. 07

    Children's nationality and future mobility

    Children of dual-citizen parents often acquire both nationalities at birth - which influences future university access, military obligations, banking and, eventually, their own tax exposure. Worth thinking through deliberately, not by accident.

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Two passports, one written plan

In 30 minutes we map your Swiss residence, your CRS footprint, your succession exposure and (if applicable) your US tail - so the second passport is an asset, not an annual surprise.

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How we help

How we help dual citizens

Tax residence & filing

Confirm Swiss residence, file an ordinary return, handle treaty positions and coordinate any second-country filing obligation.

Coordinate cross-border tax filing

Banking & CRS-ready setup

Choose Swiss banks that work with your nationality profile and keep KYC and CRS records consistent across jurisdictions.

Set up Swiss banking that fits

Investments that travel

Portable, low-cost portfolios that respect the reporting rules of every country you hold residence or citizenship in.

Invest across jurisdictions cleanly

Health & supplementary cover

KVG / VVG choices that still work if you split time between Switzerland and your second country.

Right-size health cover for two-country life
Why dual citizens work with us
Residence
Drives Swiss tax - not citizenship
CRS
Account data flows to every residence country
PILA
Choose-of-law for succession is possible
CHF 0
First consultation - no obligation
How we work

How we work with dual citizens

1 · Free discovery call

30 minutes to map your two (or more) nationalities, residence history and where your money actually sits.

2 · A cross-border roadmap

A written plan covering Swiss filing, second-country exposure, CRS hygiene, banking and succession.

3 · Implementation, together

We coordinate with local specialists where needed and review whenever residence, marriage or estate plans change.

Tools

Run the numbers yourself

Calculators are estimates for planning, not formal tax or investment advice.

Swiss salary calculator

Model Swiss net income as a resident - your second passport does not change the Swiss side.

Open calculator

Pension gap

See how a second-country pension entitlement combines with your Swiss pillars.

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Cost of living

Compare Swiss cantons against your second-country base when planning future relocations.

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FAQ

Dual-citizen questions we hear most often

Do I pay tax in both countries if I'm a dual citizen?
Generally no - Switzerland and almost every other country tax on residence, not citizenship. As a Swiss resident you pay Swiss income and wealth tax on worldwide income and assets; your second passport, on its own, does not trigger a second tax bill. The major exception is US citizenship, which obliges you to file a US return on worldwide income for life - see our US-persons page for detail.
Will my Swiss bank report my account to my other country?
Yes, under the OECD Common Reporting Standard. Swiss banks identify the tax residences of every account holder and report account balances and income annually to those tax authorities through the Federal Tax Administration. Switzerland exchanges data with over 100 partner jurisdictions. As a Swiss-resident dual citizen, the Swiss data is reported to Switzerland (and to other countries only where you are also tax-resident there).
Which country's inheritance law applies if I die in Switzerland?
By default, the law of your last residence applies - so Swiss law for a Swiss resident. However, the Swiss Federal Act on Private International Law (PILA) allows foreign nationals resident in Switzerland to elect their home-country succession law in their will, which can be decisive on forced heirship and division between spouse and children. We recommend a deliberate choice in writing rather than relying on the default.
Can I be hit by inheritance tax in two countries?
Yes - this is a real risk. Switzerland has very few inheritance-tax treaties (the most-used are with Germany, the UK, the US, and a small handful of others). For most country pairs, both jurisdictions can in principle assess inheritance tax on the same estate based on residence of the deceased, residence of the heir, or location of the asset. Foreign real estate, in particular, is usually taxed where it sits.
Will Swiss banks accept me as a dual-national client?
Most Swiss retail banks accept clients with two non-US passports without difficulty. US dual nationals face a much narrower selection of Swiss banks willing to onboard them due to FATCA reporting cost. We help you pre-select banks that genuinely service your nationality profile rather than discovering the issue at account opening.
Should I renounce my second citizenship to simplify things?
Almost never on purely financial grounds, except sometimes for US citizens, where ongoing US tax compliance is genuinely costly and the renunciation procedure (and exit tax) is well-defined. For non-US dual citizens, the cost of holding both passports is administrative - reporting, banking, succession planning - and is normally far smaller than the value of optionality the second passport provides.
Related guides

Keep reading

Next step

Let's make your dual citizenship simple

A 30-minute call with an independent Hello Expats advisor - no obligation, no fees. We design Swiss residence, banking and succession around your two (or more) passports.

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