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Law of 18 September 2017 on Money Laundering: Complete Analysis

Detailed analysis of the Belgian law of 18 September 2017 on the prevention of money laundering and terrorist financing. Discover the obligations, sanctions and impact for your company.

April 9, 202614 min read

In brief

The Belgian Act of 18 September 2017 is the cornerstone of the AML/CFT framework: it requires 32 categories of professionals (banks, notaries, accountants, domiciliation centers…) to identify their clients, assess risks, monitor transactions and report any suspicion to the CTIF/CFI. Penalties range up to 5 million euros in administrative fines and 5 years imprisonment.

Introduction: Belgium's AML Foundation

The Law of September 18, 2017 on money laundering and terrorism financing is Belgium's cornerstone AML/CFT legislation, imposing strict obligations on 32 categories of professionals, including domiciliation centers.

Key figures:

  • 137 articles with obligations and sanctions
  • €5 million maximum fine
  • 5 years imprisonment for serious non-compliance
  • Transposition of 4th and 5th EU Directives

Core Obligations for Domiciliation Centers

1. Customer Identification (Art. 19-26)

Standard Customer Due Diligence (CDD):

  • ✅ Identify customer + representatives
  • ✅ Identify UBOs (ultimate beneficial owners)
  • ✅ Understand business relationship purpose
  • ✅ Ongoing monitoring

Enhanced Due Diligence (EDD) required for:

  • PEPs (Politically Exposed Persons)
  • High-risk countries
  • High-risk situations
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async function performCDD(client: Client): Promise<CDDReport> {
  class="code-comment">// Verification via Company Belgium
  const kboData = await companyBelgiumClient.companies.get(client.enterpriseNumber);
  const uboData = await companyBelgiumClient.companies.getUBO(client.enterpriseNumber);
  
  class="code-comment">// Sanctions screening
  const sanctions = await screeningService.check(client);
  
  class="code-comment">// Risk assessment
  const riskScore = calculateRiskScore({
    country: kboData.country,
    sector: kboData.naceCode,
    isPEP: sanctions.isPEP,
  });
  
  return {
    compliant: riskScore < 70,
    eddRequired: riskScore >= 60,
  };
}

2. Suspicious Transaction Reporting (Art. 47)

Mandatory CTIF reporting:

  • Immediate upon suspicion
  • Before execution if possible
  • Tipping-off prohibited (informing customer)

3. Record Retention (Art. 34)

Mandatory 10-year retention for:

  • Identification documents
  • CTIF reports
  • Due diligence reports

4. Risk Analysis (Art. 8)

Each obliged entity must establish a risk analysis evaluating customer, product, and distribution channel risks.

5. Staff Training (Art. 16)

Annual training required on:

  • Recognizing suspicious operations
  • Legal obligations
  • Internal procedures

See our AML/KYC training program for domiciliation centers for a structured 8-module program.

6. Compliance Officer (Art. 15)

For entities > 5 employees: dedicated Compliance Officer centralizing CTIF reports and ensuring compliance.

Non-Compliance Sanctions

Administrative sanctions (Art. 91)

  • Fines: €50,000 to €5,000,000 (or 10% turnover)
  • Activity suspension
  • License revocation

See also our guide on AML non-compliance sanctions in Belgium for recent published cases.

Criminal sanctions

  • Money laundering: 15 days to 5 years imprisonment
  • Failure to report: 6 months to 5 years
  • Tipping-off: 6 months to 3 years

Compliance with Company Belgium

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class="code-comment">// Automated compliance verification
async function verifyCDDCompliance(enterpriseNumber: string) {
  const company = await companyBelgiumAPI.companies.get(enterpriseNumber);
  
  const checks = {
    registered: company.status === class="code-string">'ACTIVE',
    addressVerified: company.addresses.length > 0,
    uboIdentified: await hasUBOData(enterpriseNumber),
  };
  
  return {
    compliant: Object.values(checks).every(Boolean),
    recommendations: generateRecommendations(checks),
  };
}

Start your compliance with Company Belgium - 100 free verifications/month.

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Frequently asked questions

Which 32 categories of entities are subject to the Belgian Act of 18 September 2017?

The Belgian Act of 18 September 2017 subjects to its obligations: credit institutions, banks, life insurance undertakings, investment firms, currency exchange offices, notaries, bailiffs, lawyers (for certain activities), statutory auditors, accountants, tax advisers, real-estate agents, company service providers (including domiciliation centers), casinos, dealers in precious metals and works of art above 10,000 euros, and since the 5th Directive, crypto-asset platforms. In total, 32 categories are covered regardless of the size of the structure.

What is the maximum administrative fine under the Belgian Act of 18 September 2017?

For a legal person, the maximum administrative fine is 5,000,000 euros or 10% of annual turnover, whichever is higher. For a director or compliance officer personally, the fine can also reach 5,000,000 euros. These sanctions are imposed by the competent supervisor: SPF Economie for non-financial professions, NBB or FSMA for the financial sector. Sanctions may also be published on the supervisor's website, causing major reputational damage.

What is enhanced due diligence and when is it mandatory in Belgium?

Enhanced due diligence (EDD) consists of applying more in-depth identification and verification measures than the standard process. In Belgium it is mandatory in four main cases: the client is a politically exposed person (PEP) or a close associate of a PEP; the client is domiciled in a high-risk third country identified by the European Commission; the transaction is unusual or complex without clear economic justification; the relationship is established remotely without using a substantial-level electronic identification system. Concrete measures include senior management approval, verification of the source of funds, and increased review frequency.

How does the Act of 18 September 2017 relate to European AML directives?

The Belgian Act of 18 September 2017 transposes the 4th EU Directive (EU 2015/849) and has been supplemented to integrate the 5th Directive (EU 2018/843) on crypto-assets and public access to the UBO register, and the 6th Directive (EU 2018/1673) on harmonisation of criminal penalties. The 2024 European regulatory package (AMLA, AML-R) will further strengthen the framework from 2026-2027, making certain rules directly applicable without national transposition.

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