Investment Funds Luxembourg - RAIF, SIF, UCITS | LuxLex Law

Investment Funds Luxembourg

Set up your investment fund in Luxembourg. RAIF, SIF, UCITS, SICAR structures. Expert guidance through CSSF authorization process.

8 min read Updated: Décembre 2025

In summary: Luxembourg is Europe's largest investment fund center. Options include RAIF (fast setup, no CSSF approval), SIF (regulated, CSSF approval), UCITS (retail funds, EU passport), and SICAR (risk capital). Minimum investment €125,000 for AIFs.

Luxembourg Fund Industry

Luxembourg is the world's second-largest fund domicile after the United States and Europe's leading investment fund center. With over €5.5 trillion in assets under management, the country offers a comprehensive ecosystem for all types of investment funds.

Fund Structures

RAIF - Reserved Alternative Investment Fund

The RAIF combines the flexibility of an alternative investment fund with fast time-to-market. It is the preferred choice for private equity, real estate, and hedge fund strategies.

Feature Details
Regulator Not directly supervised by CSSF
Launch time 2-4 weeks
AIFM requirement Mandatory (external or internal)
Eligible investors Well-informed investors only
Minimum investment €125,000
Legal forms SICAV, SICAF, FCP, SCS, SCSp

SIF - Specialized Investment Fund

The SIF is a regulated fund product for alternative investments. It requires CSSF approval but offers maximum flexibility in terms of investment strategies.

Feature Details
Regulator Supervised by CSSF
Launch time 3-6 months
Eligible investors Well-informed investors only
Minimum investment €125,000
Risk diversification 30% maximum per asset

UCITS - Retail Investment Funds

UCITS are harmonized retail investment funds that can be marketed to investors across the EU. Luxembourg is the leading European domicile for UCITS, hosting over 60% of European cross-border funds.

Feature Details
Regulator Supervised by CSSF
EU passport Yes - marketable across all EU states
Eligible investors Retail and institutional
Minimum investment None
Eligible assets Transferable securities, money market, UCITS funds

SICAR - Risk Capital Investment Company

The SICAR is designed for investments in venture capital and private equity. It offers favorable tax treatment for qualifying investments.

Feature Details
Regulator Supervised by CSSF
Investment focus Risk capital only
Eligible investors Well-informed investors
Tax regime Exempt on income from risk capital

Why Luxembourg for Funds?

  • European hub: Distribution to 70+ countries
  • Regulatory expertise: CSSF with deep fund experience
  • Service provider ecosystem: Leading administrators, custodians, auditors
  • Flexible structures: Multiple fund vehicles and umbrella structures
  • Tax efficiency: No subscription tax for institutional investors
  • Political stability: AAA-rated jurisdiction

Our Services

  • Fund structure optimization
  • RAIF, SIF, UCITS, SICAR formation
  • CSSF authorization support
  • Fund documentation (prospectus, PPM, articles)
  • AIFM selection and appointment
  • Ongoing legal and regulatory support

Frequently Asked Questions

A RAIF (Reserved Alternative Investment Fund) is an unregulated alternative investment fund reserved for well-informed investors. It must appoint a licensed AIFM but is not directly supervised by the CSSF, allowing for faster time-to-market.

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