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Corporate illustration of Luxembourg SICAR legal framework with regulatory architecture and investment flow symbolism in blue and gold tones

Luxembourg SICAR Law: Complete Legal Framework Guide

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The Luxembourg SICAR law, enacted on 15 June 2004 and significantly amended by the law of 12 July 2013, established a dedicated legal framework for risk capital investment vehicles in Luxembourg. Designed specifically to serve the needs of private equity, venture capital, and mezzanine finance players, the SICAR (Société d’Investissement en Capital à Risque) offers a flexible, tax-efficient structure that has positioned Luxembourg as a leading European hub for alternative investment fund structuring. With over 200 SICARs authorised by the Commission de Surveillance du Secteur Financier (CSSF) as of recent years, the regime continues to attract promoters seeking a robust yet adaptable vehicle for alternative investments.

For fund managers, institutional investors, and family offices, understanding the nuances of Luxembourg SICAR law is essential to leveraging the full potential of this vehicle. The SICAR regime combines regulatory credibility with structural flexibility, exempting qualifying investments from subscription tax while allowing full access to Luxembourg’s extensive double tax treaty network. Whether you are structuring a private equity platform, a real estate venture, or a venture capital fund, the SICAR provides a legally sound and commercially efficient solution. For a broader conceptual overview, see our guide on SICAR Luxembourg Meaning: Complete Legal & Tax Guide.

What Is the Luxembourg SICAR Law? Legal Foundation and Scope

The SICAR law of 15 June 2004, as amended, constitutes the primary legislative text governing risk capital investment companies in Luxembourg. The law was conceived to provide a tailored alternative to the SIF regime (Specialised Investment Fund, created in 2007) for investors whose activities focus exclusively on risk capital investments. Unlike collective investment vehicles designed for retail investors, the SICAR targets professional, well-informed investors and is not subject to portfolio diversification rules or risk-spreading obligations. This makes it particularly suited for concentrated investment strategies typical of private equity and venture capital.

The 2013 amendment brought the SICAR regime into alignment with the Alternative Investment Fund Managers Directive (AIFMD), ensuring that SICARs are classified as alternative investment funds (AIFs) and are subject to the corresponding regulatory framework. This alignment enhanced the SICAR’s passporting rights across the European Economic Area (EEA), making it a competitive vehicle for cross-border distribution to professional investors.

Historical Background and Legislative Evolution

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Key Features of the SICAR Regime Under Luxembourg Law

The SICAR regime is characterised by several distinctive features that set it apart from other Luxembourg investment vehicles. First, the SICAR is not subject to any investment diversification or risk-spreading requirements. This means a SICAR may invest 100% of its assets in a single portfolio company, a feature particularly valued by private equity sponsors pursuing concentrated strategies. Second, the SICAR is exempt from the Luxembourg subscription tax (taxe d’abonnement), which typically applies to investment funds at rates of 0.01% or 0.05% per annum on net assets. Third, the SICAR benefits from a complete exemption from corporate income tax, municipal business tax, and net wealth tax on income derived from qualifying risk capital investments and on capital gains realised on such investments.

Another defining feature is the requirement that SICAR shares be offered exclusively to well-informed investors, as defined by the law. This category includes institutional investors, professional investors, and investors who confirm in writing that they are well-informed investors and invest a minimum of €125,000 per investment. This investor eligibility requirement ensures that the SICAR regime remains targeted at sophisticated market participants capable of assessing risk capital investments.

Corporate Forms Available

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Eligible Investments and Excluded Activities Under SICAR Law

One of the most critical aspects of Luxembourg SICAR law is the definition of risk capital investments that qualify under the regime. Article 1 of the SICAR law defines risk capital as an investment in entities that, at the time of the investment, have their registered office in an EU member state or a third country, provided that these entities have their central administration in Luxembourg or maintain their main establishment there. The investment must present a real risk of capital loss, reflecting the speculative nature of the activity and the uncertainty of the investment’s outcome.

The law provides a broad scope for qualifying investments, including direct equity investments, quasi-equity instruments (such as convertible bonds, subordinated debt, and mezzanine financing), and participations in companies seeking growth capital, restructuring, or buyout financing. However, the SICAR may not invest in assets that do not present a real risk of capital loss, such as listed securities held for portfolio purposes or debt instruments with limited risk profiles.

Qualifying Investments in Detail

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The taxation of SICARs under Luxembourg law is one of the most distinctive aspects of the regime. Unlike the SIF regime, which benefits from a tax exemption at the fund level, the SICAR is fully taxable as a standard Luxembourg company on income and capital gains derived from non-qualifying investments. However, income and capital gains derived from qualifying risk capital investments are entirely exempt from corporate income tax (IRC), municipal business tax (ICC), and net wealth tax (IN). This bifurcated tax treatment means that a SICAR’s effective tax rate depends entirely on the composition of its investment portfolio.

The SICAR is also exempt from the Luxembourg subscription tax (taxe d’abonnement), which represents a significant cost advantage compared to other Luxembourg fund vehicles. The subscription tax normally applies at a rate of 0.01% per annum on the net asset value of investment funds, with certain exemptions available. For a SICAR investing exclusively in qualifying risk capital investments, the effective tax burden is limited to the net wealth tax on non-qualifying assets, if any, and standard administrative costs.

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The SICAR is a regulated vehicle subject to the prudential supervision of the CSSF. This regulatory oversight provides a level of investor protection and institutional credibility that distinguishes the SICAR from unregulated structures. The CSSF is responsible for authorising SICARs, approving their constitutive documents, and monitoring ongoing compliance with the SICAR law, AIFMD requirements, and anti-money laundering (AML) obligations.

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SICAR vs Other Luxembourg Investment Vehicles

The SICAR is one of several vehicles available in Luxembourg for alternative investment structuring. Understanding the differences between the SICAR and other vehicles is essential for selecting the optimal structure for a given investment strategy. The main alternatives are the SIF (Specialised Investment Fund), the RAIF (Reserved Alternative Investment Fund), and the SOPARFI (Société de Participations Financières).

The SIF, created by the law of 13 February 2007, is a regulated fund vehicle that, unlike the SICAR, is subject to diversification rules but benefits from a full tax exemption at the fund level, including exemption from corporate income tax, municipal business tax, and net wealth tax. The SIF is also exempt from subscription tax, subject to certain conditions. However, the SIF’s diversification requirements may be restrictive for concentrated investment strategies.

SICAR vs RAIF: Key Differences

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SICAR vs SOPARFI: Choosing the Right Vehicle

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Setting Up a SICAR in Luxembourg: Practical Considerations

Setting up a SICAR in Luxembourg requires careful planning and coordination among legal, tax, and regulatory advisors. The process involves selecting the appropriate corporate form, drafting the constitutive documents, appointing the depositary and the AIFM, preparing the CSSF application file, and ensuring compliance with AML and substance requirements. The entire process, from initial structuring to CSSF authorisation, typically takes between 3 and 6 months, although complex structures may take longer.

The choice of corporate form is a critical decision that affects the tax treatment, governance structure, and investor relations of the SICAR. Partnership forms (SCSp, SCS) are increasingly popular for private equity funds due to their tax transparency, which allows investors to be taxed directly on their share of the SICAR’s income. Corporate forms (SA, Sàrl) provide a taxable entity that can benefit from Luxembourg’s treaty network, which may be advantageous for investments in jurisdictions with high withholding tax rates. The choice between these forms should be made in consultation with experienced Luxembourg counsel.

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Questions fréquentes (FAQ)

What is the minimum capital requirement for a SICAR under Luxembourg law?

The SICAR law requires a minimum capital of €1,000,000, which must be fully subscribed and at least 5% paid up within 12 months of incorporation. There is no maximum capital limit.

Is a SICAR subject to Luxembourg corporate income tax?

A SICAR is fully taxable as a standard Luxembourg company. However, income and capital gains derived from qualifying risk capital investments are exempt from corporate income tax, municipal business tax, and net wealth tax. Only income from non-qualifying investments is subject to these taxes.

Can a SICAR invest in real estate?

Direct real estate investment is generally not considered risk capital under the SICAR law. However, indirect real estate investment through qualifying entities (such as shares in real estate companies) may qualify, provided the investment presents a real risk of capital loss.

What is the difference between a SICAR and a RAIF?

The SICAR is a CSSF-regulated vehicle restricted to risk capital investments, fully taxable but with exemptions for qualifying investments, and has access to double tax treaties. The RAIF is an unregulated vehicle, fully tax-exempt at the fund level, restricted to well-informed investors, and must be managed by an authorised AIFM. The RAIF does not require CSSF authorisation, making it faster to set up.

Who can invest in a SICAR?

SICAR shares may only be offered to well-informed investors, which includes institutional investors, professional investors, and investors who confirm in writing that they are well-informed investors and invest a minimum of €125,000 per investment.

The Luxembourg SICAR law provides a robust, flexible, and tax-efficient legal framework for risk capital investment, making it a vehicle of choice for private equity, venture capital, and mezzanine finance structures. Its unique combination of regulatory credibility, access to Luxembourg’s double tax treaty network, exemption from subscription tax, and flexibility in corporate form selection positions the SICAR as a cornerstone of Luxembourg’s alternative investment fund landscape. Whether used as a standalone vehicle or in combination with other Luxembourg structures such as the RAIF or SOPARFI, the SICAR offers promoters and investors a compelling solution for cross-border investment strategies.

At Lerusse Merckx & Partners, our team of experienced Luxembourg lawyers and tax advisors specialises in SICAR structuring, CSSF authorisation, and ongoing regulatory compliance. We provide end-to-end legal and tax support for private equity and venture capital platforms, from initial structuring to operational implementation.

Contact Lerusse Merckx & Partners today for expert legal and tax advice on structuring your SICAR in Luxembourg. Our specialists will guide you through every step, from corporate form selection to CSSF authorisation and ongoing compliance.

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François Lerusse is a lawyer with extensive experience in fund, corporate and transactional matters, with a particular focus on private equity, venture capital and real estate structures. He advises on complex international structuring and has longstanding experience acting for fund managers, investors and international groups.