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Luxembourg SICAV for Spanish and EU Investors

A Luxembourg SICAV (société d'investissement à capital variable) is an open-ended investment company whose share capital rises and falls as investors subscribe and redeem. It is supervised by the CSSF, typically follows the EU UCITS framework and keeps its assets with a separate custodian. For a Spanish or EU investor, the structure is only half the picture: how gains and income are taxed is set by the investor's country of residence, not by Luxembourg.

How a Luxembourg SICAV is structured

A SICAV is a company, not a contract. Investors hold shares, and the number of shares in issue changes whenever someone subscribes or redeems, which is why the capital is called variable. The company appoints a management company, a depositary that holds the assets, and an administrator that calculates the net asset value.

Many Luxembourg SICAVs are UCITS, the European framework for retail-eligible funds. UCITS rules set limits on diversification, liquidity and leverage, and allow a fund authorised in Luxembourg to be distributed across the EU. Other SICAVs use alternative frameworks aimed at professional or well-informed investors, with more flexibility and different protections.

Why the structure sits in Luxembourg

  • Supervision by the CSSF, the Luxembourg financial regulator.
  • Separation between the company, the manager and the custodian holding the assets.
  • Umbrella structures: several sub-funds, each with its own strategy, under one legal entity.
  • Share classes in different currencies, useful for investors outside a single currency area.
  • Cross-border distribution within the EU under a single authorisation.

Costs to look at

A SICAV carries several layers of cost: the management fee of the sub-fund, administration and depositary charges, and, depending on the share class, distribution costs. These are usually summarised in the ongoing charges figure published in the fund's key information document.

Investors should compare the ongoing charges, any entry or exit fees and the reference currency of each share class before subscribing. Costs reduce the return you receive, so they are worth reading in the fund documentation rather than assuming.

Taxation: it depends on where you live

The fact that a SICAV is domiciled in Luxembourg does not decide how its investor is taxed. For a Spanish resident, the reporting obligations and the treatment of gains and income follow Spanish rules, including the requirement to report certain assets held abroad. Investors resident in other EU countries follow their own national rules, which differ from each other and change over time.

For that reason, no general article can say what a specific investor will owe. Before subscribing, confirm the tax treatment with a tax adviser in your country of residence. All investments involve risk, including the possible loss of the capital invested; past performance does not guarantee future results; and taxation depends on personal circumstances.

Frequently asked questions

Is a Luxembourg SICAV the same as a UCITS fund?

Not always. Many Luxembourg SICAVs are UCITS, but a SICAV is a legal form and can also operate under other frameworks, so the fund documentation states which regime applies.

Does investing in a Luxembourg SICAV change my tax residence?

No. Your tax residence stays where you live, and it is that country's rules that determine reporting and taxation. A local tax adviser can confirm what applies to your situation.

Who holds the assets of a SICAV?

A depositary, distinct from the management company, keeps the assets of the SICAV. This separation is a core element of the regulated framework supervised by the CSSF.

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