Case StudyFebruary 2026

Case Study: French Family with €5M Structures Wealth Across Three Jurisdictions

9 min·family wealth structuringmulti-jurisdiction planningHNWI relocationfamily office structure

Client Profile

Detail Info
Name The Dumont family (anonymized)
Ages Pierre (52), Isabelle (49), two children (16, 19)
Nationality French
Residence Paris, France (lifelong)
Net worth ~€5M
Composition €2M Paris apartment, €1.5M securities portfolio, €800K assurance-vie, €500K cash, €200K crypto
Income Pierre: €180K (executive), Isabelle: €60K (consultant)

The Problem

The Dumonts faced a convergence of concerns:

Issue Detail
IFI (wealth tax) €5M puts them well into IFI territory — ~€7,500/year on real estate assets above €1.3M
Inheritance exposure French succession tax: up to 45% above €1.8M per child
Portfolio taxation 30% flat tax (PFU) on all investment gains
Older child's studies Son accepted at a university in Dubai — family considering following
Pierre's career Can transition to consulting role for his employer, working remotely

Pierre asked: "We're not trying to hide anything. We just want to structure our wealth intelligently for the next 20 years."


The Solution: Three-Jurisdiction Architecture

Structure Overview

┌────────────────────────────────────────────────────┐
│              🇦🇪 UAE (Dubai)                        │
│         Personal residence — Golden Visa            │
│        Pierre's consulting via Freezone             │
│        Personal banking: Wio + ENBD                 │
└───────────────────────┬────────────────────────────┘
                        │ owns 100%
┌───────────────────────▼────────────────────────────┐
│            🇱🇺 Luxembourg SOPARFI                    │
│          Holding company for investments            │
│         Banking: BIL private banking                │
│       Holds: listed securities + fund units         │
└───────────────────────┬────────────────────────────┘
                        │ subsidiary
┌───────────────────────▼────────────────────────────┐
│            🇨🇭 Switzerland                           │
│         Swissquote brokerage account                │
│         Direct market access for trading            │
│         CHF diversification                         │
└────────────────────────────────────────────────────┘

Phase 1: UAE Setup (Month 1-3)

Action Timeline Cost
Dubai Freezone (DMCC) — consulting license 3 weeks €8,500
Golden Visa (via company) 4 weeks €3,200
Family visas (spouse + 2 children) 2 weeks €4,800
Apartment rental (Dubai Marina, 3BR) 1 week ~€42,000/year
Wio accounts (Pierre + Isabelle) 3 days Free
Emirates NBD Signature (private banking) 3 weeks €2,500
School enrollment for younger child Concurrent ~€25,000/year

Phase 2: Luxembourg SOPARFI (Month 2-4)

Action Timeline Cost
SOPARFI S.à r.l. incorporation 4 weeks €12,000
BIL private banking account 3 weeks €3,500
Transfer securities portfolio (€1.5M) 2 weeks Via transfer of ownership
Substance requirements (local director, registered office) Ongoing €8,000/year

Why SOPARFI?

Benefit Detail
Participation exemption Dividends from qualifying subsidiaries: exempt
Capital gains exemption Gains on qualifying participations: exempt
Treaty network 80+ DTAs, including France and UAE
EU Parent-Subsidiary Directive Tax-free dividend flows within EU
Reputation Luxembourg is tier-1, never questioned by banks

Phase 3: Swiss Banking (Month 3-5)

Action Timeline Cost
Swissquote account opening 2 weeks €2,000
Transfer of CHF allocation (~€300K) 1 week Wire transfer

Handling the French Exit Tax

Asset In scope? Latent gain Exit tax (30%)
Securities portfolio (€1.5M) ✅ Yes ~€400,000 €120,000
Crypto (€200K) ✅ Yes ~€130,000 €39,000
Assurance-vie (UC portion) ⚠️ Partial ~€80,000 €24,000
Paris apartment ❌ Not exit tax (different regime)
Cash ❌ No
Total exit tax exposure €183,000

Strategy: Automatic sursis (France-UAE treaty). Hold all assets for 5 years post-departure. Exit tax = €0 at expiry.

Paris Apartment Decision

Option Consequence
Keep and rent Rental income taxed in France (20% + 17.2% social charges)
Sell before departure Capital gains tax with abatements (22+ years ownership → significant reduction)
Sell after departure 19% + 17.2% on non-residents (no abatement reset)

Decision: Keep for 2-3 years (rental income via agency), then reassess. Keeps optionality if family returns.


Financial Impact (Annual)

Item France (before) New structure Difference
Pierre's income tax ~€45,000 €0 (Dubai) +€45,000
Isabelle's income tax ~€12,000 €0 (Dubai) +€12,000
Social charges (both) ~€55,000 €0 +€55,000
IFI wealth tax ~€7,500 €0 +€7,500
Investment gains tax (avg) ~€15,000/year €0 (via SOPARFI) +€15,000
Total annual tax savings ~€134,500
Structure maintenance costs -€25,000/year
Higher Dubai cost of living -€30,000/year
Net annual benefit ~€79,500

Succession Planning Impact

Scenario French regime New structure
€5M estate, 2 children Up to 45% on amounts above €1.8M per child = ~€700K+ in estate taxes UAE: no inheritance tax. Luxembourg SOPARFI: shares transfer via controlled process
Potential estate tax savings €500K-€700K+

Timeline

Month 0    → Engaged Private Office
Month 1-2  → UAE company + visa + banking
Month 2-4  → Luxembourg SOPARFI setup + banking
Month 3-5  → Swiss account + portfolio restructuring
Month 4    → Fiscal domicile transfer to UAE
Month 5    → Exit tax declaration filed
Month 6    → Fully operational — three jurisdictions active
Year 2-5   → Annual exit tax attestations
Year 5     → Exit tax dégrèvement → €0

Services Used

Service Cost
Private Office — Plan B Fiscal UAE (Resident package) €38,000
Luxembourg SOPARFI setup €18,000
Swiss account opening €2,000
French tax advisor (exit tax + apport structuring) €12,000
Total €70,000
Payback period ~10 months of tax savings

Key Takeaways

  • Multi-jurisdiction structuring isn't just for the ultra-wealthy — at €5M, the numbers are compelling
  • The combination of UAE (personal), Luxembourg (holding), and Switzerland (banking) is a proven triangle
  • French exit tax with proper sursis management leads to zero payment after the holding period
  • Succession planning is a major driver — French inheritance tax at 45% is a significant wealth erosion
  • Genuine relocation is essential — the Dumonts actually live in Dubai, children attend school there
  • Annual maintenance costs (~€25K) are real but marginal versus the savings

⚠️
Disclaimer: This case study illustrates a multi-jurisdiction approach. Individual circumstances require bespoke analysis by qualified professionals in each jurisdiction.

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