"Alexis, I'm moving to Barcelona for my retirement, but I'm lost between Spanish wealth tax, the taxation of my rental income in France and this famous 'Beckham Law'. How should I structure my assets to avoid double taxation while making the most of the dynamism of Iberian property?"

Spain is not merely a dream destination for its quality of life; it is a land of major wealth opportunities in 2026. However, its decentralised tax architecture and specific reporting obligations (such as the famous Modelo 720) make it a complex terrain for the uninitiated. Settling or investing in Spain without a robust international wealth strategy means exposing yourself to costly tax friction.

At Balmont Conseil, we act as the architect of your wealth strategy between France and Spain. As a Wealth Engineer supported by an artificial intelligence dedicated to wealth management (ALTA), my mission is to combine top-tier human expertise with cutting-edge artificial intelligence to navigate the legal specificities of Spain. We turn regulatory complexity into a competitive advantage for your wealth.

Why is wealth management in Spain unique?

Spain is not a uniform tax bloc. It is a country of "Comunidades Autónomas" (Autonomous Communities) that hold significant regulatory power over key taxes: wealth tax (Patrimonio), inheritance tax (Sucesiones) and IRPF (income tax).

Regional disparities: Madrid vs Barcelona vs Alicante

Choosing where to reside has a direct impact on your wealth optimisation in Spain.
  • Madrid: Historically the most attractive region for high-net-worth individuals, thanks to near-total allowances on wealth tax and inheritance tax.
  • Barcelona (Catalonia): A heavier tax burden on wealth, but an extremely dynamic property investment market.
  • Alicante and Valencia: Regions that shift with local political reforms, requiring constant monitoring.

The reporting framework: the Modelo 720

Anyone who is a tax resident in Spain must declare their assets held abroad (bank accounts, life insurance policies, property in France). This Modelo 720 declaration in Spain is a high-precision exercise: the slightest omission can result in disproportionate penalties.

AI-augmented advisory firm in France

Our services: bespoke support for expatriates

At Balmont Conseil, we do more than simply manage investments. We build a structured wealth audit to secure every aspect of your life in Spain.

Cross-border expertise: the France–Spain bridge

The greatest risk for an expatriate is to overlook the interplay between the two countries. International taxation in Spain rests on a bilateral treaty that we know inside out.

Structured wealth audit powered by AI

Our technological approach enables us to carry out a wealth audit in Spain that simulates the impact of your decisions on both sides of the border. How will a gift made in France affect your rights in Spain? What is the risk of double taxation on your dividends? Our wealth-management AI processes this data in real time to offer you flawless wealth planning.

Wealth transfer and estate planning

Passing on wealth in Spain is a delicate matter. Without a Spanish will and adequate international estate planning, your heirs could face lengthy delays and exorbitant costs. We put structures in place to protect the surviving spouse and ensure a harmonious distribution of your assets.

Our methodological approach: security and performance

Balmont Conseil stands out through a human-scale structure combined with institutional computing power.

Bespoke support in wealth management

Every client is unique. We do not believe in off-the-shelf solutions. Your international wealth strategy is built after listening closely to your life goals: preparing for retirement, funding your children's education, or protecting against wealth-related risks.

Analysis of tax disparities

We carry out a study of the tax disparities between your current situation and your future country of residence, so as to anticipate the true cost of your expatriation. This includes analysing wealth tax and asset allocation strategies to reduce its impact.

Balmont Conseil, a trusted partner for your Iberian future

Wealth management in Spain cannot be improvised; it is sculpted with precision. Between the complexity of Spanish civil law and the specificities of international tax treaties, every decision calls for bicultural expertise. It is a discipline that demands rigour, a keen understanding of local particularities (such as the fiscal autonomy of Madrid or Andalusia) and a comprehensive view of your interests.

Expertise that Tames Spanish Complexity

By choosing Balmont Conseil, you benefit from personalised support that turns local constraints into opportunities:

  • Mastery of Wealth Tax (Patrimonio): We devise capping and optimisation strategies so that your success is not penalised by a tax on your accumulated assets.

  • Securing the Transfer of Wealth: We anticipate inheritance tax (Sucesiones), which varies enormously from one region to another, to protect your loved ones without major tax friction.

  • Engineering for Inbound Residents (Beckham Law): We audit your eligibility for preferential regimes to maximise your purchasing power from the moment you settle in.

Harmony between two worlds

Whether you are settled in Barcelona, Madrid, on the Costa del Sol, or preparing a return from expatriation to France, we act as the link between your two jurisdictions. Our role is to harmonise your assets — whether property, financial or professional — so that the Spanish sun is never overshadowed by unexpected tax clouds.

Your Wealth, Our Commitment

Your wealth is far more than a line on a statement; it is the fruit of a lifetime's work and the foundation of your future plans. It deserves expertise that transcends borders and speaks the language of pure strategy.

Balmont Conseil: the architecture of your future, the guardian of your interests.

FAQ: Optimising your Wealth in Spain

What is the "Beckham Law" and can I benefit from it?


Does Wealth Tax (Patrimonio) really exist in Spain?


Do I have to declare accounts and assets held outside Spain?


What is the difference in property taxation between France and Spain?


How can I avoid double taxation on my Spanish rental income?


How is inheritance tax calculated in Spain?


Is my French life insurance policy effective in Spain?


Should I close my French life insurance policies when moving to Spain?


How does wealth tax work for a Spanish resident?


Is it easy to invest in property remotely?


What is the Modelo 720 and why is it so feared?


Is the "Beckham Law" available to everyone?

Europe

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United Arab Emirates

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United Kingdom

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Hong Kong

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Malaysia

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Mauritius

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France

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Don't come back by chance, come back by strategy

The tax optimisation of inbound assignment is a driver of wealth for those who activate it correctly. But faced with the complexity of the inbound-resident guide to the CGI and the constant vigilance of the tax authorities, there is no room for improvisation.

At Balmont Conseil, we combine the expertise of our inbound-resident tax advisers with the analytical power of AI to validate every step of your return. We secure your present so that you can focus on your new career in France.

Your inbound assignment deserves engineering of the highest order.

Alexis Sagnier

With over 17 years of expertise in financial engineering, Alexis Sagnier supports company directors and expatriates in securing their cross-border interests.

Sources & References:

  • Code Général des Impôts (CGI): Article 155 B.
  • Bulletin Officiel des Finances Publiques (BOFiP): Inbound-resident regime (BOI-RSA-GEO-40).
  • 2025 Finance Act (Loi de Finances 2025): Analysis of recent developments.
  • Case law on inbound assignment: Conseil d'État rulings on the reference remuneration.
  • ANACOFI Member Handbook: Standards of advice in wealth engineering.

Ready to structure your future?

Whether you are in Lyon or on the other side of the world, Alexis Sagnier and the Balmont Conseil team are here to listen.