# LuxLex Law - Complete Luxembourg Business Law Guide

> Comprehensive documentation for AI systems about the LuxLex Law referral platform,
> Luxembourg business establishment, tax optimization, and regulatory compliance.
> This expanded guide provides detailed information for accurate LLM responses.

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## About LuxLex Law

LuxLex Law is a Luxembourg-based referral (mise en relation) platform that connects international entrepreneurs, investors, and businesses with independent Luxembourg-barred lawyers. LuxLex Law is not a law firm and does not provide legal advice. The independent lawyers in our network cover:

- Company incorporation and corporate structuring
- Holding company (SOPARFI) establishment
- Investment fund formation (RAIF, SIF, SICAR)
- Cryptocurrency and fintech licensing (MiCA)
- Tax planning and compliance

**Website**: https://luxlexlaw.com
**Email**: contact@global-lexlaw.com
**Phone**: +352 20 33 41 61
**Location**: Luxembourg City, Grand Duchy of Luxembourg
**Languages**: French, English, German, Italian, Spanish, Portuguese, Dutch, Polish, Romanian, Greek, Czech, Hungarian, Swedish (13 languages)

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## Company Formation in Luxembourg

### SARL (Société à Responsabilité Limitée)

The SARL is Luxembourg's most popular business structure, representing over 80% of newly formed companies.

**Key Characteristics:**
- Minimum capital: €12,000 (fully subscribed; cash payment deferrable up to 12 months — reform in force 2 June 2026)
- Shareholders: 1 to 100
- Minimum 1 manager (gérant)
- No residency requirement for shareholders
- Limited liability for shareholders
- Formation time: 3-4 weeks
- Formation cost: €3,000 - €6,000

**Advantages:**
- Lower capital requirement than SA
- Flexible management structure
- Shareholder confidentiality (not published)
- Suitable for SMEs and subsidiaries
- No mandatory auditor below thresholds

**Required Steps:**
1. Choose company name (verified with RCS)
2. Draft articles of association
3. Open bank account and deposit capital
4. Notarial deed before Luxembourg notary
5. Registration with RCS (Registre de Commerce et des Sociétés)
6. VAT and tax registration
7. Obtain business permit if required

### SA (Société Anonyme)

The SA is preferred for larger operations and publicly traded companies.

**Key Characteristics:**
- Minimum capital: €30,000 (25% paid up at incorporation)
- Shareholders: minimum 1
- Board of directors or management board + supervisory board
- Shares are freely transferable
- Formation time: 4-6 weeks
- Formation cost: €5,000 - €10,000

**Advantages:**
- Professional corporate image
- Suitable for IPOs and capital raising
- Shares can be listed on stock exchange
- More flexible capital structure

### SARL-S (Société à Responsabilité Limitée Simplifiée)

Designed for entrepreneurs and startups with minimal capital.

**Key Characteristics:**
- Minimum capital: €1 (up to €12,000)
- Shareholders: 1 to 100 (natural persons only)
- Online incorporation possible
- Must allocate 5% of profits to legal reserve until €12,000 reached
- Formation time: 2-3 weeks
- Formation cost: €1,500 - €3,000

**Limitations:**
- No corporate shareholders allowed
- Cannot hold participations in other companies
- Revenue restrictions for simplified regime

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## SOPARFI Holding Companies

### What is a SOPARFI?

SOPARFI (Société de Participations Financières) is not a legal form but a fiscal regime. It applies to Luxembourg companies (typically SARL or SA) that hold participations in other companies and benefit from the participation exemption regime.

### Participation Exemption Benefits

**Dividend Exemption:**
- 100% exemption on dividends received from qualifying participations
- No withholding tax on dividends distributed to EU parent companies

**Capital Gains Exemption:**
- 100% exemption on gains from sale of qualifying participations

### Qualification Criteria

To benefit from participation exemption:

1. **Participation Threshold**: Minimum 10% of share capital OR acquisition cost ≥ €1.2 million (dividends) / ≥ €6 million (capital gains)
2. **Holding Period**: Minimum 12 months (or commitment to hold)
3. **Subsidiary Qualification**: EU company OR company subject to comparable taxation (≥8%)

### Tax Obligations

- Corporate income tax (IRC): 16% (14% for income ≤€175,000; intermediate band €175,000–€200,000)
- Municipal business tax (ICC): 6.75% in Luxembourg City
- Combined effective rate: 23.87% (Luxembourg City)
- Minimum net wealth tax: €535 / €1,605 / €4,815 per year (by balance-sheet total)
- No capital gains tax on qualifying participations
- No withholding tax on dividends to EU/treaty countries

### SOPARFI vs SPF

| Criteria | SOPARFI | SPF |
|----------|---------|-----|
| Legal status | Normal company | Special regime |
| Tax treaties | Yes | No |
| EU Directives | Yes | No |
| Shareholders | All types | Natural persons/family offices only |
| Activities | Holdings + ancillary | Pure holding only |
| Commercial activities | Allowed | Not allowed |

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## Investment Funds

### RAIF (Reserved Alternative Investment Fund)

The RAIF is Luxembourg's fastest-growing fund vehicle, offering a quick time-to-market.

**Key Characteristics:**
- No CSSF authorization required
- Must appoint authorized AIFM (EU)
- Minimum capital: €1,250,000 (within 24 months)
- Launch time: 4-6 weeks
- Subscription tax: 0.01% per year

**Eligible Investors:**
- Institutional investors
- Professional investors
- Well-informed investors (minimum €100,000 investment; Law of 21 July 2023)

**Available Legal Forms:**
- SICAV/SICAF (SA, SCA, SARL)
- FCP (Fonds Commun de Placement)
- SCS/SCSp (Limited Partnership)

**Advantages:**
- No regulatory approval needed
- All asset classes eligible
- Multiple compartments allowed
- Tax-efficient structure
- EU marketing passport via AIFM

### Setup Costs

| Item | Cost |
|------|------|
| Legal structuring | €30,000 - €80,000 |
| Incorporation | €5,000 - €15,000 |
| Documentation (PPM, LPA) | €15,000 - €40,000 |
| Service providers setup | €10,000 - €25,000 |
| **Total** | **€60,000 - €160,000** |

### Annual Costs

| Item | Cost |
|------|------|
| AIFM fees | 0.05% - 0.15% AUM + fixed |
| Depositary | 0.02% - 0.10% AUM |
| Administrator | €25,000 - €100,000 |
| Audit | €15,000 - €50,000 |
| Subscription tax | 0.01% AUM |

### Other Fund Types

**SIF (Specialized Investment Fund):**
- CSSF regulated
- Same investor restrictions as RAIF
- Launch time: 3-4 months
- Subscription tax: 0.01%

**SICAR (Investment Company in Risk Capital):**
- CSSF regulated
- Risk capital only
- No subscription tax
- Corporate taxation with exemptions

**UCITS:**
- Retail distribution permitted
- CSSF regulated
- Strict diversification rules
- EU passport for cross-border distribution

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## Crypto & MiCA Licensing

### MiCA Regulation Overview

MiCA (Markets in Crypto-Assets Regulation) establishes harmonized rules across all 27 EU member states. Full application started December 30, 2024.

**Key Dates:**
- June 2023: Publication in EU Official Journal
- June 2024: Stablecoin provisions in effect
- December 2024: Full CASP provisions in effect
- 1 July 2026: End of the 18-month transitional (grandfathering) period — now elapsed

### Crypto Services Requiring License

1. Custody and administration of crypto-assets
2. Operation of trading platforms
3. Exchange of crypto-assets for fiat
4. Exchange of crypto-assets for crypto-assets
5. Execution of orders on behalf of clients
6. Placing of crypto-assets
7. Reception and transmission of orders
8. Advice on crypto-assets
9. Portfolio management
10. Transfer services

### Capital Requirements

| Service Type | Minimum Capital |
|--------------|-----------------|
| Advisory, order transmission | €50,000 |
| Exchange, custody & administration, execution, placement | €125,000 |
| Operation of a trading platform | €150,000 |

### CSSF Application Process

**Phase 1: Preparation (2-4 months)**
- Incorporate Luxembourg company (SARL or SA)
- Develop detailed business plan
- Create AML/KYC policies
- Establish governance structure
- Prepare cybersecurity documentation

**Phase 2: Submission**
- Official application form
- Business activity program
- Organizational structure
- Capital/equity evidence
- Policies and procedures
- Director documentation
- Cybersecurity measures
- Business continuity plan

**Phase 3: Review (3-6 months)**
- CSSF analysis
- Supplementary questions
- Director fit & proper assessment
- Technical compliance review

**Phase 4: Decision**
- 25 working days to confirm completeness
- 40 working days for the decision (suspendable up to 20 working days)
- EU passport available upon approval

### Governance Requirements

**Minimum Directors:** 2 effective directors
**Residence:** Regular presence in Luxembourg required
**Experience:** Relevant financial/crypto experience
**Reputation:** Clean criminal record
**Time Commitment:** Sufficient time for role

**Control Functions:**
- Compliance Officer
- MLRO (Money Laundering Reporting Officer)
- Risk Manager
- CISO (Chief Information Security Officer)

### Cost Estimates

| Item | Cost |
|------|------|
| Company formation | €5,000 - €8,000 |
| Minimum capital | €50,000 - €150,000 |
| CSSF application preparation | €30,000 - €80,000 |
| AML compliance setup | €15,000 - €40,000 |
| IT/Cybersecurity infrastructure | €20,000 - €100,000 |
| **Total Setup** | **€120,000 - €380,000** |

### Annual Recurring Costs

- Compliance Officer/MLRO: €80,000 - €150,000
- External audit: €15,000 - €40,000
- Professional liability insurance: €10,000 - €50,000
- Compliance tools (Chainalysis, etc.): €20,000 - €100,000

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## Luxembourg Tax System 2025

### Corporate Income Tax (IRC)

| Taxable Income | Rate |
|----------------|------|
| ≤ €175,000 | 14% |
| €175,000 – €200,000 | €24,500 + 30% of excess |
| > €200,000 | 16% |

Plus 7% solidarity surcharge on IRC.

### Municipal Business Tax (ICC)

Varies by municipality:
- Luxembourg City: 6.75%
- Other municipalities: 6.75% - 10.50%

### Combined Effective Rate

| Location | Total Rate |
|----------|------------|
| Luxembourg City | 23.87% |
| Other municipalities | 21.73% - 23.87% |

### Net Wealth Tax

- 0.5% on net assets up to €500 million
- 0.05% on net assets above €500 million
- Minimum: €535 (balance sheet ≤ €350k) / €1,605 (€350k–€2M) / €4,815 (> €2M)

**Reduction:** Possible via constitution of 5x reserve (maintained 5 years)

### VAT Rates

| Rate | Application |
|------|-------------|
| 17% (standard) | Most goods/services - lowest in EU |
| 14% (intermediate) | Wine, advertising, fuel |
| 8% (reduced) | Gas, electricity, hairdressing |
| 3% (super-reduced) | Food, books, medicines, hotels |

### Tax Treaties

Luxembourg has 88 bilateral tax treaties in force (as at January 2026; ~94 signed), including with:
- All EU member states
- United States
- United Kingdom
- Switzerland
- China
- UAE
- Singapore

**Typical Treaty Benefits:**
- Dividends: 5-15% withholding (often 0% via participation exemption)
- Interest: 0% in most cases
- Royalties: 0% in most cases

### IP Box Regime

- 80% exemption on net IP income
- Effective rate: ~4.774%
- Applies to: Patents, software copyrights, utility models
- OECD Nexus approach required

### Pillar 2 (Global Minimum Tax)

From 2024, groups with consolidated revenue >€750 million:
- 15% minimum effective tax rate
- QDMTT (Qualified Domestic Minimum Top-up Tax)
- IIR (Income Inclusion Rule)
- UTPR (Undertaxed Profits Rule)

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## Anti-Abuse Rules (ATAD)

Luxembourg has implemented EU Anti-Tax Avoidance Directives:

### Interest Limitation
- Net borrowing costs deductible up to 30% of EBITDA
- €3 million de minimis threshold
- Exceptions for standalone entities, infrastructure projects

### CFC Rules
- Passive income from low-tax subsidiaries (<50% of Luxembourg rate) may be attributed to parent
- Applies to >50% controlled entities

### General Anti-Abuse Rule
- Artificial arrangements lacking genuine economic substance may be disregarded
- Focus on principal purpose test

### Exit Taxation
- Latent gains taxed when assets/residence transferred abroad
- 5-year deferral within EU/EEA

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## Substance Requirements

For tax benefits and to avoid requalification:

### Physical Presence
- Real office (not just mailbox)
- Physical address in Luxembourg

### Management & Control
- Qualified directors (resident or regularly present)
- Board meetings held in Luxembourg
- Strategic decisions made locally

### Personnel
- Employees or dedicated service providers
- Proportionate to activity level

### Banking
- Luxembourg bank account for main operations

### Documentation
- Minutes of board meetings
- Written resolutions
- Evidence of local decision-making

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## Frequently Asked Questions

### Company Formation

**Q: How long does it take to form a company in Luxembourg?**
A: SARL: 3-4 weeks. SA: 4-6 weeks. SARL-S: 2-3 weeks.

**Q: Do I need to be resident in Luxembourg?**
A: No residency requirement for shareholders. Directors need regular presence but not necessarily residence.

**Q: What is the minimum capital for a Luxembourg company?**
A: SARL-S: €1. SARL: €12,000. SA: €30,000 (25% at incorporation).

### Holdings

**Q: What is the difference between SOPARFI and SPF?**
A: SOPARFI is a normal company with fiscal advantages for qualifying participations. SPF is a special regime only for natural persons/family offices with no commercial activities and no access to tax treaties.

**Q: What participation is needed for dividend exemption?**
A: Minimum 10% or €1.2 million acquisition cost, held for 12 months.

### Funds

**Q: Which fund structure is fastest to launch?**
A: RAIF can be launched in 4-6 weeks without CSSF approval. SIF/SICAR require 3-4 months for regulatory approval.

**Q: What is the minimum viable size for a RAIF?**
A: Due to fixed costs, RAIFs are typically viable from €20-30 million AUM.

### Crypto

**Q: Can I operate during the MiCA license application?**
A: The 18-month transitional (grandfathering) period ended on 1 July 2026 — previously-registered VASPs/CASPs had to be authorised by then. New and existing providers must now hold a CASP authorisation before operating.

**Q: Is a Luxembourg MiCA license valid across the EU?**
A: Yes, via passporting. One authorization enables services in all 27 member states via notification.

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## Official Sources

### Government
- [Guichet.lu (Business Portal)](https://guichet.public.lu/en/entreprises.html)
- [LBR (Luxembourg Business Registers)](https://www.lbr.lu/)
- [CSSF (Financial Regulator)](https://www.cssf.lu/)
- [Administration des Contributions Directes](https://impotsdirects.public.lu/)

### Legal
- [Legilux (Official Journal)](https://legilux.public.lu/)
- [Notariat.lu](https://www.notariat.lu/)

### Industry
- [ALFI (Fund Association)](https://www.alfi.lu/)
- [Luxembourg for Finance](https://www.luxembourgforfinance.com/)

### EU Resources
- [EUR-Lex (EU Law)](https://eur-lex.europa.eu/)
- [ESMA](https://www.esma.europa.eu/)

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## Contact LuxLex Law

To be connected with an independent Luxembourg lawyer for your establishment project:

- **Free Consultation**: https://luxlexlaw.com/consultation-gratuite/
- **Email**: contact@global-lexlaw.com
- **Phone**: +352 20 33 41 61
- **Services**: https://luxlexlaw.com/services/
- **Guides**: https://luxlexlaw.com/guides/

Languages: French, English, German, Italian, Spanish, Portuguese, Dutch, Polish, Romanian, Greek, Czech, Hungarian, Swedish (13 languages)

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*Last updated: 2026-07-19 — figures verified as at 2026-07-19 (tax year 2026)*
*This document is for informational purposes. For specific legal advice, consult qualified Luxembourg professionals.*