Moving to Switzerland from France

01

Why this trade matters

For a French resident with real assets, Switzerland is not a marketing proposition. The income-tax saving is genuine, and at high incomes it is large. But France is unusual in how hard it taxes the act of leaving, and in how long it keeps a claim on you afterwards. So the honest framing is not “how much will I save in Zug.” It is “what does the exit cost, and what does France keep taxing once I am gone.”

Three things define the French departure. First, the exit tax of article 167 bis CGI taxes the unrealized gains in your shareholdings at the moment you move, before you have sold anything. Second, French real estate keeps you inside the impôt sur la fortune immobilière (IFI) and inside French capital-gains and inheritance tax indefinitely. Third, the 2015 termination of the France-Switzerland inheritance treaty left a cross-border estate exposed to French and Swiss tax at once. None of these is a reason not to move. All three are reasons to model the move before signing a lease.

Three 2026 changes are worth surfacing up front.

• The income-tax bands were indexed up 0.9% for 2026 (LF 2026 art. 4; Service-Public F1419).
• The LFSS 2026 raised CSG on capital income to 10.6%, lifting prélèvements sociaux on dividends, interest, and securities gains to 18.6% and the flat tax on those to 31.4% (loi n° 2025-1403, art. 12). Real-estate gains stay at 17.2%.
• A PLF 2026 amendment to extend the exit-tax holding period to 15 years was rejected; the 2-year / 5-year regime survives (parliamentary chronology).

The Swiss side is the same federal-plus-cantonal-plus-communal system every country guide on this site describes. Direct federal tax is capped at 11.5%; the cantonal and communal layers do the real work and vary widely. This guide uses Zugas the benchmark canton (it is the cross-country calculator's default). For French movers, the natural pull is the French-speaking cantons, Vaud and Geneva, which are linguistically frictionless but materially more expensive than Zug, and which carry their own wealth-tax and (in Geneva's case) inheritance rules. We treat those costs explicitly in Section 04.

02

Article 167 bis: France's exit tax on unrealized gains

A French resident with a meaningful shareholding cannot leave France cheaply. The exit tax (article 167 bis CGI) treats the departure as if the qualifying shares had been sold the day before, and taxes the unrealized gain. The bill is computed on a profit you have not received.

The statute is article 167 bis CGI; the doctrine sits at BOI-RPPM-PVBMI-50-10-30.

Three conditions trigger it.

1. The individual was a French tax resident for at least 6 of the 10 years before departure.
2. The household holds shares worth more than €800,000, or holds at least 50%of a company's capital.
3. French tax residence ends. Moving to Switzerland is enough.

The rate. The latent gain is taxed at the flat tax: 12.8% income tax plus prélèvements sociaux. For 2026 the social component on securities gains is 18.6%, so the headline rate is 31.4% (it was 30% through 2025, before the LFSS 2026 CSG increase; loi n° 2025-1403, art. 12). The taxpayer can elect the progressive barème instead where that is cheaper.

Switzerland's specific treatment: the part that matters. For a move to an EU state, or to Iceland or Norway, the payment is deferred automatically with no guarantee. Switzerland is a third country for this purpose. It is not in the European Economic Area and is not on the automatic-deferral list, so the deferral (sursis de paiement) is granted only on request and only against financial guarantees (BOI-RPPM-PVBMI-50-10-30). In practice the mover must file form 2074-ET and request the sursis, designate a fiscal representative in France, and post guarantees, generally around 30% of the latent gains, 90 days before the transfer (Bensaïd Avocats). This is the single most important planning point for a French HNW move to Switzerland: the deferral exists, but it is conditional, paperwork-heavy, and must be arranged before you go, not after.

Extinguishment (dégrèvement). The liability is cancelled if the shares are still held after a holding period: 2 years where the total securities value is under €2.57 million, 5 years where it is €2.57 million or more (Bensaïd Avocats). Death and a return to France also extinguish it. A sale during the period crystallises the tax.

Reform history, and why this is a live area. The 2-year / 5-year regime dates to the 2019 finance law. It was unchanged by LF 2024 and LF 2025. In the PLF 2026 debate, an amendment to restore the pre-2019 15-year holding period passed first reading in the Assemblée nationale on 3 November 2025, then fell after the commission mixte paritaire failed and the government used article 49.3; the final law (LOI n° 2026-103 du 19 février 2026) excluded it (full chronology). The regime is therefore stable for 2026, but it has been politically contested two years running. Anyone modelling a multi-year hold should treat the holding period as a rule that could tighten in a future finance law.

For a founder with €20–50 million in private shares, the 167 bis bill is the largest single financial event of the relocation, and the year before departure is where the planning lives. We put numbers on it in Section 04, Persona B.

03

Ongoing French ties after the move: IFI, the inheritance tail, and trailing reporting

The exit tax is a one-off. The French ties that survive the move are recurring, and they are where French movers most often miscalculate. Three matter.

IFI on French real estate. The impôt sur la fortune immobilière taxes net real-estate wealth above €1,300,000 at 1 January; once the threshold is crossed the barème bites from €800,000 (article 964 CGI and following; Service-Public F138). A French resident is taxed on worldwide real estate; a non-resident is taxed on French-situs real estate only. So a Swiss-resident French national who keeps a Paris apartment and a country house remains an IFI taxpayer if the French-situs net value tops €1.3 million, while the Swiss home and any other foreign property fall outside the base. The 2026 thresholds and bands are unchanged.

Capital gains on French property after the move. A sale by a non-resident is taxed at 19% income tax plus prélèvements sociaux. The headline for an unaffiliated non-resident is 17.2% PS, so 36.2% total. But a French national who is resident in Switzerland and affiliated to Swiss social security is exempt from CSG and CRDS under the De Ruyter line (CJEU C-623/13) and pays only the 7.5% prélèvement de solidarité, so 19% + 7.5% = 26.5% (Room Avocats). Long holding still earns the durée-de-détention abatements: full income-tax relief at 22 years, full social relief at 30 (article 150 VC CGI). The De Ruyter exemption is the single most valuable, and most overlooked, feature of selling French property from Switzerland.

The inheritance tail, the underappreciated trap. France terminated the 1953 France-Switzerland inheritance tax treaty: the denunciation was published by Décret n° 2014-1270 du 30 octobre 2014 and took effect 1 January 2015. No replacement was ratified (BOFiP ACTU-2014-00284). Since then, nothing allocates taxing rights between the two countries, so French internal law and Swiss cantonal law apply cumulatively, with the only relief being France's unilateral foreign-tax credit under article 784 A CGI.

Two reach rules then matter. French-situs assets are always taxable in France regardless of where the deceased lived (article 750 ter, 1° CGI). And the worldwide estate is taxable in France if the deceased was French-resident or if the heir has been French-resident for at least 6 of the 10 years before the transfer (article 750 ter, 3° CGI). That second rule is the trap: a French national who moves to Switzerland, dies there, and leaves the estate to a child who stayed in France (or who returns to France within the window) exposes the entire worldwide estate to French inheritance tax, at rates running 5% to 45% in the direct line after a €100,000 per-parent-per-child allowance (article 779 CGI; BOFiP Suisse succession). Leaving France does not, by itself, take the family out of French inheritance tax.

Frontalier as the alternative

Not every French mover should become a Swiss tax resident. For someone living near the border, the cross-border (frontalier) route keeps French residence while working in Switzerland. Two regimes exist.

• Geneva (1973 accord): workers resident in France employed in the canton of Geneva are taxed at source in Geneva. Geneva pays a fiscal compensation to the departments of Ain and Haute-Savoie of 3.5% of the gross wage mass (Sénat).
• The eight-canton accord (11 April 1983): for Berne, Soleure, Bâle-Ville, Bâle-Campagne, Vaud, Valais, Neuchâtel, and Jura, the frontalier is taxed in France of residence, not in Switzerland; France pays the cantons 4.5% of the gross wage mass (Sénat).

Telework no longer breaks the regime: up to 40% of working time from the French home is tolerated, made permanent by the 2023 avenant to the 1966 double-tax treaty, in force 24 July 2025 (economie.gouv.fr). A separate, higher social-security tolerance applies under the 2023 EU framework agreement; that is a different threshold from the 40% tax rule.

Frontalier is the right structure for a mid-career professional with French roots, a French home, and a job within commuting distance of the border. It is the wrong structure for the HNW mover trying to escape the exit tax (you have not changed residence, so 167 bis is not in play, but neither are the Swiss tax advantages), for an executive whose role is in Zug or Zurich, and for anyone who wants genuine Swiss tax residency. The rest of this guide is about the full move.

04

What Switzerland costs and what you keep

Methodology, stated before any number.Both personas use a single-earner married couple with two children, on a gross-income basis. The income-tax row that maps to the cross-country calculator is income tax only, computed on gross with no deduction. France has no sub-national surtax equivalent, so the French row is IR only. CSG/CRDS is shown as a supplementary social row, not part of the cross-country comparison. The Swiss side renders federal, cantonal, and communal income tax for the canton shown, plus cantonal wealth tax where it exceeds CHF 1,000, with KVG health premiums referenced separately. The euro figure is converted at the calculator's rate.

One honesty note on the French figure. The calculator models French IR on gross income with no deduction, to keep the cross-country comparison like-for-like. A real French return applies the 10% déduction forfaitaire (capped at €14,171), which at €150,000 brings the actual effective IR down to roughly 15.6%. The calculator's higher figure is deliberately conservative; it slightly overstates French IR rather than understating it, and the persona below states both.

A note on indirect tax. Swiss VAT is 8.1% at the standard rate against French TVA at 20% (ESTV VAT rates). Over a working life the difference compounds quietly; no single purchase makes it obvious.

05

Permits, integration, and the honest timeline

Immigration is the easy part. French nationals are EU citizens and move under the 1999 Agreement on the Free Movement of Persons. No quota, no labour-market test, no language requirement at the permit-B stage.

Permit B EU/EFTA is issued on an open-ended or ≥12-month employment contract, or for a non-worker on proof of sufficient means plus full health insurance; valid 5 years, renewable. Register with the commune within 14 days of arrival; take out KVG health insurance within 3 months, backdated to arrival. Permit C (settlement) follows after 5 years of continuous residence for EU/EFTA nationals. Naturalisation is a 10-year horizon (3 of the last 5 years before applying), with cantonal language and integration tests; France permits dual nationality.

The French advantage is Romandie.The French-speaking cantons (Geneva, Vaud, Valais, Neuchâtel, Jura, Fribourg) operate in French, so a French family faces no language barrier in administration, schooling, or daily life. That is the mirror image of an Italian's advantage in Ticino. The catch is cost: Geneva and Vaud sit near the top of the Swiss cantonal tax range, so the linguistically easy destinations are the fiscally expensive ones. A French executive optimising for tax (Zug, Zurich, Schwyz) takes on a German-speaking environment and the multi-year integration curve that comes with it. Swiss public schools in Romandie are strong and free; for German-speaking cantons, families weigh local public school against the Lycée Français options (Zurich, Basel, and the long-established network around Geneva) at roughly CHF 25,000–40,000 per child per year.

06

Decision and next steps

Three archetypes cover most French movers.

Address the inheritance tail explicitly, in every case. Since the 1953 treaty was terminated, French-situs assets stay in French DMTG, and a French-resident heir can pull the whole worldwide estate back into French tax under the 6-of-10-years rule. A coordinated estate plan, on both sides of the border, belongs in the move, not after it.

For parallel country views, see our companion guides: Germany, Italy, Norway, the United Kingdom. The mechanics differ. The discipline of running primary-source numbers before signing a lease does not.