Since the introduction of the European Central Bank (ECB) supervisory expectations for Climate-related & Environmental Risks, now Climate and Nature (C&N), formalised in the ECB Guide of November 2020 and the 2025 press release, the materiality assessment has served as a foundational requirement for integrating C&N risks into institutions’ enterprise-wide risk management frameworks. Over the past years, this early regulatory push ensured that the methodology for assessing climate risk materiality became both familiar and widely embedded across institutions.
Published on 20 January 2026, CSSF Circular 26/905 introduces a major shift in how Less Significant Institutions (LSIs) in Luxembourg must organise, govern, and operationalise their approach to environmental, social and governance (ESG) risks. Yet despite its significance, the circular has so far received surprisingly little attention, an oversight that could leave institutions unprepared for a complex regulatory transition. This article highlights what the circular requires, why it matters, and why institutions should act now.
Take control of your tax obligations and discover new opportunities. Thanks to our innovative tool, adapt your Tax Calendar 2026 to your needs and meet your tax deadlines efficiently with Grant Thornton Luxembourg.
Following the transposition into Luxembourg national law of the EU Directive 2022/2523 (the "Pillar 2 Law"), multinational enterprise (MNE) groups and significant large domestic groups are required to pay a minimum tax level of 15%. The Pillar 2 law came into effect for fiscal years starting on or after 31 December 2023.
As the deadline for compliance with Circular CSSF 24/847 on ICT-related incident reporting framework rapidly approaches, financial institutions are facing mounting pressure to ensure their systems are up to standard. With the 1st of April deadline just around the corner, it's imperative for organisations to act swiftly to avoid potential penalties and reputational damage.
Grant Thornton Women in Business report celebrates 20 years of insights. In recognition of International Women’s Day, Grant Thornton has launched its International Women in Business report, which reports on actionable steps for businesses to take towards achieving gender parity.
Adjustment of tax brackets and tax credits - The legislator has adjusted the income tax scale by 4 indexed brackets, with effect from 1st January 2024. This will result in tax reduction for all taxpayers.
It's been five years since the last elections! The next social elections for companies with more than 15 employees will take place on 12 March 2024. While the process is set out in detail in a draft ministerial decree, it's important to remember that there are a lot of things that need to be done, requiring resources, time, and technical skills.
Recent decisions rendered by the Court of Justice of the European Union (“CJEU”) seem to have put an end to investigations of the European Commission (“EC”) into tax measures of the Member States based on the state aid rules. In particular, certain tax rulings granted by the Luxembourg tax authority (“LTA”) to Fiat, Engie and Amazon groups have been characterised by the EC in the past as conveying illegal selective tax advantages. Ultimately, CJEU decisions rendered in these cases found the tax rulings not to constitute unlawful state aid.
Circular CSSF 24/847 introduces a comprehensive framework for reporting ICT-related incidents in the financial sector. The aim is to gain a more detailed understanding of the nature, frequency, significance, and impact of such incidents within the context of a highly interconnected global financial system. The circular addresses the evolving ICT and security risks by expanding the incident coverage and introducing a structured reporting mechanism.
On 20 December 2023, draft law no. 8292 (“Draft Law”), transposing the EU Council Directive 2022/2523 of 14 December 2022 (“Pillar Two Directive”) into Luxembourg national law, was adopted by the Luxembourg Parliament (the “Law”). The Law aims to ensure that multinational enterprise (“MNE”) groups and significant large domestic groups pay a minimum level of tax of 15%. It incorporates amendments proposed by the Luxembourg Government in November 2023 in order to be aligned with administrative guidance issued by the OECD.
On 22 December, the Administration de l’enregistrement, des domaines et de la TVA (“AEDT”) has issued circular no 781-1 on VAT on directors’ fees.
Grant Thornton Advisory, alongside 12 fellow European Grant Thornton member firms is carrying out a survey to identify key trends about the DPO (Data Protection Officer) function in Europe.
Following the CJEU’s decision C-288/19, “QM” of January 20th, 2021, the VAT treatment of company cars granted by a company to its employees should be modified for most cases applied by Luxembourg companies. Following this “QM” case-law, in the event where a company provides company cars to its employees, and provided the below conditions are met, this supply corresponds to a VAT taxable activity on which VAT must be collected by the company and accordingly declared to the VAT Authorities
The law of August 7, 2023 on non-profit associations and foundations was published in the Official Journal on September 19, 2023 and come into force since September 23, 2023. It applies to newly created non-profit organisations and foundations from this date.
In the rapidly evolving financial landscape, regulatory compliance is more than just a checkbox; it’s a fundamental pillar ensuring the stability and integrity of financial markets. Two key regulations governing outsourcing and third-party ICT services in financial entities are CSSF CIRCULAR 22/806 and DORA (Digital Operational Resilience Act). While they share a number of similarities, the unique features of DORA offer some important benefits.
On 12 September 2023, the European Commission adopted the proposal for a directive “Business in Europe: Framework for Income Taxation. BEFIT aims to introduce a single set of rules applicable to determine the corporate income tax base of multinational enterprises in all EU Member States as well as a simplified transfer pricing approach for assessing intercompany transactions. In the words of the EC, the Proposal is motivated by reduction of tax compliance costs for large, cross-border businesses in the European Union.
STATEC has confirmed, on Wednesday 30 August, the triggering of a new salary indexation as from 1 September 2023.
On 4 August 2023, the Luxembourg Government introduced to the Luxembourg Parliament the draft law no. 8292 (the "Draft Law"), aimed at implementing the provisions of the European Union (“EU”) Council Directive 2022/2523 of 14 December 2022 (the “EU Pillar Two Directive” or the “Directive”). In line with the Directive, and in order to ensure that large multinational enterprise (“MNE”) groups and significant large domestic groups pay a minimum level of tax, the Draft Law introduces three new taxes into Luxembourg national law.