CSSF-Circulars

The CSSF Circulars in Luxembourg are issued by CSSF for the Financial Institutions such as Credit Institutions (banks), AIFMs, ManCos, Payment Institutes, EMIs, PFS / PSF etc.

Circular CSSF 26/911: ESMA Guidelines on stress test scenarios under Article 28 of the Money Market Fund Regulation – Update 2025 (ESMA50-481369926-30585) in Luxembourg. Are you aware?

Circular CSSF 26/911: ESMA Guidelines on stress test scenarios under Article 28 of the Money Market Fund Regulation – Update 2025 (ESMA50-481369926-30585) in Luxembourg. Are you aware?

CSSF-Circulars, EU Regulations, Explanation, IFMs (AIFMs, ManCos) News, Must Read, Undertakings for collective investment (UCIs) / By

Luxembourg Financial Regulatory News: The Circular CSSF 26/911 and the accompanying ESMA Final Report outline the updated 2025 guidelines for conducting stress test scenarios within the Money Market Fund (MMF) sector. These regulatory documents require fund managers to simulate severe financial shocks, including geopolitical instability, heightened asset volatility, and significant liquidity disruptions, to […]

Circular CSSF 26/911: ESMA Guidelines on stress test scenarios under Article 28 of the Money Market Fund Regulation – Update 2025 (ESMA50-481369926-30585) in Luxembourg. Are you aware? Read More »

NIS2 in Luxembourg under Law of 5 May 2026 concerning measures to ensure a high level of cybersecurity-Ratiofy.Lu

NIS2 in Luxembourg under Law of 5 May 2026 concerning measures to ensure a high level of cybersecurity in Luxembourg. Are you ready?

EU Regulations, Credit Institutions News, CSSF-Circulars, Explanation, Must Read / By

Luxembourg Financial Regulatory News: The article explains the Luxembourgish law of May 5, 2026, which establishes a comprehensive legal framework to ensure high-level cybersecurity across the nation. Transposing the European NIS 2 Directive, the legislation identifies essential and important entities across critical sectors such as energy,

NIS2 in Luxembourg under Law of 5 May 2026 concerning measures to ensure a high level of cybersecurity in Luxembourg. Are you ready? Read More »

April 2026 CSSF Newsletter No 303: What happened during last month in the Financial Sector in Luxembourg?

April 2026 CSSF Newsletter No 303: What happened during last month in the Financial Sector in Luxembourg?

Central Securities Depositories (CSDs) News, Credit Institutions News, Crowdfunding service providers (CSPs) News, Crypto-Assets Service Providers (CASPs) and Virtual Asset Service Providers (VASPs) News, CSSF-Circulars, Data Reporting Service Providers (DRSPs) News, EU Regulations, Explanation, IFMs (AIFMs, ManCos) News, Investment Firms News, Issuers of Tokens (EMTs, ARTs) News, Must Read, Payment Institutions (PIs) / Electronic Money Institutions (EMIs) /AISPs News, Pension funds News, PFS/PSF News, Undertakings for collective investment (UCIs) / By

Luxembourg Financial Regulatory News: The April 2026 CSSF Newsletter No 303 from the Commission de Surveillance du Secteur Financier (CSSF) serves as a comprehensive update on the Luxembourg financial scene. It highlights critical security warnings regarding fraudulent websites and provides detailed regulatory circulars concerning crypto-assets and liquidity management. Extensive statistical

April 2026 CSSF Newsletter No 303: What happened during last month in the Financial Sector in Luxembourg? Read More »

Circular CSSF 26/910 ESMA Guidelines on Liquidity Management Tools (LMTs) of UCITS and open-ended AIFs (ESMA34-671404336-1364): What are the new rules and instructions regarding LMTs in Luxembourg?

Circular CSSF 26/910 ESMA Guidelines on Liquidity Management Tools (LMTs) of UCITS and open-ended AIFs (ESMA34-671404336-1364): What are the new rules and instructions regarding LMTs in Luxembourg?

CSSF-Circulars, EU Regulations, Explanation, IFMs (AIFMs, ManCos) News, Undertakings for collective investment (UCIs) / By

Luxembourg Financial Regulatory News: Let’s understand the new rules and instructions regarding Liquidity Management Tools (LMTs). These guidelines were created by the European Securities and Markets Authority (ESMA) and are being applied in Luxembourg by the Commission de Surveillance du

Circular CSSF 26/910 ESMA Guidelines on Liquidity Management Tools (LMTs) of UCITS and open-ended AIFs (ESMA34-671404336-1364): What are the new rules and instructions regarding LMTs in Luxembourg? Read More »

CSSF Communication to the investment fund industry regarding the “LMT activation” module in relation to additional liquidity management requirements for Luxembourg-domiciled UCITS, ManCos and AIFMs

CSSF Communication to the investment fund industry regarding the “LMT activation” module in relation to additional liquidity management requirements for Luxembourg-domiciled UCITS, ManCos and AIFMs

CSSF-Circulars, Explanation, IFMs (AIFMs, ManCos) News, Must Read / By

Luxembourg Financial Regulatory News: On April 10, 2026, the Commission de Surveillance du Secteur Financier (CSSF) announced the launch of the “LMT activation” module within its eDesk portal. This initiative follows the transposition of Directive (EU) 2024/927 into Luxembourg law

CSSF Communication to the investment fund industry regarding the “LMT activation” module in relation to additional liquidity management requirements for Luxembourg-domiciled UCITS, ManCos and AIFMs Read More »

The CSSF’s 2026 priorities for supervising the investment fund sector according to the communication published on 31 March 2026

The CSSF’s 2026 priorities for supervising the investment fund sector in Luxembourg according to  the communication published on 31 March 2026

IFMs (AIFMs, ManCos) News, CSSF-Circulars, Explanation, Must Read / By

Luxembourg Financial Regulatory News: Briefing Document: CSSF’s 2026 priorities for supervising for the Investment Fund Sector Executive Summary The Commission de Surveillance du Secteur Financier (CSSF) has established its supervisory priorities for 2026, centering on the dual mission of ensuring

The CSSF’s 2026 priorities for supervising the investment fund sector in Luxembourg according to  the communication published on 31 March 2026 Read More »

Circular CSSF 26/909: Application of the Guidelines of ESMA for the criteria on the assessment of knowledge and competence under the Markets in Crypto Assets Regulation (MiCA) (ESMA35-24871704-2922)

Circular CSSF 26/909: Application of the Guidelines of ESMA for the criteria on the assessment of knowledge and competence under the Markets in Crypto Assets Regulation (MiCA) (ESMA35-24871704-2922)

CSSF-Circulars, Crypto-Assets Service Providers (CASPs) and Virtual Asset Service Providers (VASPs) News / By

Luxembourg Financial Regulatory News: Circular CSSF 26/909 follows the associated ESMA guidelines regarding the mandatory knowledge and competence for personnel working with crypto-assets. These regulations target crypto-asset service providers (CASPs) to ensure that staff delivering advice or information are properly qualified and experienced. By establishing uniform criteria for professional

Circular CSSF 26/909: Application of the Guidelines of ESMA for the criteria on the assessment of knowledge and competence under the Markets in Crypto Assets Regulation (MiCA) (ESMA35-24871704-2922) Read More »

Circular CSSF 26/908 (Amendment of Circular CSSF 18/703) - RatiofyLu

Circular CSSF 26/908 (Amendment of Circular CSSF 18/703 on the introduction of a semi-annual reporting of borrower related residential real estate indicators): 5 Surprising Ways Luxembourg’s New Real Estate Rules Impact the Market

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Luxembourg Financial Regulatory News: Circular CSSF 26/908 brings the regulatory update from the Commission de Surveillance du Secteur Financier (CSSF), which modifies existing guidelines for residential real estate lenders in Luxembourg. The document introduces updated semi-annual reporting requirements concerning specific borrower indicators, such as loan-to-value (LTV) and debt-to-income (DTI) ratios. These

Circular CSSF 26/908 (Amendment of Circular CSSF 18/703 on the introduction of a semi-annual reporting of borrower related residential real estate indicators): 5 Surprising Ways Luxembourg’s New Real Estate Rules Impact the Market Read More »

Circular CSSF 26/907 Sets the Requirements applicable to Special Réviseur d’Entreprises Agréé (Approved Statutory Auditor) for Credit Institutions

Circular CSSF 26/907 Sets the Requirements applicable to Special Réviseur d’Entreprises Agréé (Approved Statutory Auditor) for Credit Institutions Issuing Covered Bonds: 4 Surprising Facts

CSSF-Circulars, Credit Institutions News, Explanation / By

Luxembourg Financial Regulatory News: Circular CSSF 26/907 defines the specific supervisory and auditing requirements for credit institutions issuing covered bonds (lettres de gage) and outlines the strict duties of their special approved statutory auditors (REAS). The circular mandates that the

Circular CSSF 26/907 Sets the Requirements applicable to Special Réviseur d’Entreprises Agréé (Approved Statutory Auditor) for Credit Institutions Issuing Covered Bonds: 4 Surprising Facts Read More »

Circular CSSF 26/906 Central administration, internal governance and risk management

Circular CSSF 26/906 on Central administration, Internal Governance and Risk Management Goes Beyond the Mailbox: 5 Surprising Shifts in Luxembourg’s New Governance Framework for PIs and EMIs with Inspiration from Directive (EU) 2015/2366 (EBA/GL/2017/09)

CSSF-Circulars, Credit Institutions News, Explanation, Must Read, Payment Institutions (PIs) / Electronic Money Institutions (EMIs) /AISPs News / By

Luxembourg Financial Regulatory News: Circular CSSF 26/906 establishes a consolidated regulatory framework for the central administration, internal governance, and risk management of payment institutions, electronic money institutions, and account information service providers operating in Luxembourg. Repealing several older circulars to

Circular CSSF 26/906 on Central administration, Internal Governance and Risk Management Goes Beyond the Mailbox: 5 Surprising Shifts in Luxembourg’s New Governance Framework for PIs and EMIs with Inspiration from Directive (EU) 2015/2366 (EBA/GL/2017/09) Read More »