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Audit of stand-alone annual accounts
At Grant Thornton Luxembourg, our team of experts is specialised in audits of stand-alone annual accounts.
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Audit of consolidated annual accounts
Grant Thornton Luxembourg team of experts is specialised in providing audit services to a lot of multinational which have their administrative center located in Luxembourg for whom the consolidated annual accounts have to be audited.
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Agreed-Upon Procedures Engagements
In the case of agreed-upon procedures engagement, Grant Thornton Luxembourg performs procedures particularly requested by the client/bank and reports on the findings.
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GDPR-CARPA Certification
Grant Thornton Audit and Assurance is accredited by the Commission Nationale pour la Protection des Données (CNPD) to provide GDPR-CARPA certifications for organisations.
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Forensic Audit
Grant Thornton Luxembourg has the forensic and business skills to deal with the most complex situations. A multi-disciplinary team of dedicated accountants in consultation with lawyers, IT consultants, insurance experts, valuation specialists and actuaries may be engaged when necessary.
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Supervisory Auditor (Commissaire)
Grant Thornton Luxembourg has a dedicated team of experts committed to deliver services to reserved to Supervisory Auditor or "Commissaire aux Comptes".
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Liquidation Audit
Grant Thornton Luxembourg has a dedicated team of experts committed to deliver services to reserved to liquidation audit "Commissariat à la liquidation".
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Assurance Engagements
Grant Thornton Luxembourg have a dedicated team of experts committed to work on audit and assurance special engagements.
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IFRS Services
At Grant Thornton Luxembourg, our experts can help you navigate the complexity of International Financial Reporting Standards (IFRS).
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Valuation
Grant Thornton Luxembourg helps clients evaluate and implement various strategic alternatives through our comprehensive suite of corporate value consulting services. From opinions, board solutions and services, to valuation and modeling, we can assist you with value added services throughout the transaction lifecycle.
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Business Risk Services
Mitigate risk and achieve compliance with solutions that address your unique challenges. From governance frameworks to risk assessments, we provide practical strategies to safeguard your business.
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Consulting
Grant Thornton’s Consulting team is your trusted partner in transformation. We help you turn challenges into opportunities and lead your business confidently into the future.
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Data Protection and Privacy
Protect your business and ensure regulatory compliance with tailored data privacy frameworks. We help you manage risks, meet GDPR requirements, and secure sensitive information.
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Deal Advisory
Whether you’re navigating a merger, raising capital, or preparing for restructuring, Grant Thornton’s Deal Advisory team provides expert guidance to help you make informed decisions and achieve your goals.
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Financial Accounting and Advisory Services (FAAS)
We bring practical solutions that facilitate your daily work, allowing you to focus on your business growth while ensuring compliance and efficiency in all financial matters. Let us guide you through the intricacies of financial accounting and advisory to set your business up for success.
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Forensic Accounting
We provide customised forensic accounting solutions to help you uncover key facts, resolve disputes, and mitigate risks in multi-jurisdictional and complex environments.
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Governance, Risk & Compliance
Navigate complex regulations and governance challenges with ease. We help you design and implement effective GRC frameworks that align with your strategic goals and meet regulatory requirements.
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Sustainability & ESG Services
We empower organisations to define and achieve their environmental, social, and governance (ESG) goals with actionable strategies. Our comprehensive advisory services help you ensure compliance, improve performance, and build trust with stakeholders.
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Whistleblowing Services
Create a culture of transparency and accountability. We assist in implementing robust whistleblowing frameworks, ensuring compliance with legal requirements and building trust within your organisation.
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Alternative Investment Services
Grant Thornton Luxembourg is a bespoke business partner to established Alternative Investment Fund (“AIF”) Managers (“AIFM”) as well as independent Managers launching start-up Funds and seeking for a single entry point in Luxembourg in order to set-up and manage their Luxembourg domiciled Funds.
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Fund Administration
Fund Administration - Grant Thornton Luxembourg offers a full range of tailored solutions to our clients.
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Registrar & Transfer Agency Services, Client Reporting
Grant Thornton Luxembourg provides investors with confirmations, final Contract Notes and regular statements upon finalisation of the Fund’s Net Asset Value, We handle all wire payments and transfers, including the processing of distribution dividend payments, and perform in-depth Anti-Money Laundering Counter Terrorism Financing and Know-Your Client due diligence checks on investors.
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Fund set-up, Launch & Corporate life
High-quality product structuring and legal services have become a crucial tool enabling industry players to get through the major changes impacting their business development, strategy and organisation as a whole. Our Investment Management practice at Grant Thornton Luxembourg is your one-stop place for expert advice combining pragmatism and a unique in-depth knowledge of the Luxembourg market.
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AML Compliance Services
Grant Thornton Luxembourg helps its Clients to keep compliant with AML-CTF laws and regulations and provide an expert skilled team.
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Regulatory Reporting Delivery
Grant Thornton Luxembourg has set up a Business Process Outsourcing Solution that manages and mutualises regulatory expertise, reporting solutions and skilled human resources
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Legal Support & Corporate Services
Grant Thornton Luxembourg delivers Legal Support & Corporate services.
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Accounting & Reporting Services
Grant Thornton Luxembourg may explore the specific characteristics of your company in order to provide a personalised assistance in the fields of Accounting & Reporting services.
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Corporate Tax Compliance
Grant Thornton Luxembourg may explore the specific characteristics of your company in order to provide a personalised assistance in the fields of corporate tax compliance.
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Corporate Finance
Exploring the strategic options available to you as a business or shareholder, advising and project managing the chosen solution, Grant Thornton Luxembourg provide a truly integrated corporate finance offering.
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Corporate Secretarial Services
Grant Thornton Luxembourg provides corporate secretarial services to enable our clients to comply with their legal and administrative obligations in Luxembourg.
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Cross-Border Tax
Tax policies are constantly evolving and there are a number of complex changes on the horizon that could significantly affect your business. We can help you with practical advice such as VAT and direct tax.
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Direct Corporate Tax Advice
Grant Thornton Luxembourg understand the complexity of national and international tax laws. We can unlock your potential for local and international growth.
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Expatriate Tax
Although international employment has become a standard practice in business life, employers and their assignees are still faced with numerous questions in this area. Grant Thornton Luxembourg can help you to be one step ahead.
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HR Consulting
Entrust our experts with the outsourcing of your human resources to enable you to organise with complete serenity. You will save valuable time, boost your profitability and be able to concentrate on your core business!
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Liquidation & Insolvency
Grant Thornton Luxembourg can draw on years of experience in the areas of liquidation and insolvency and then make sensible recommendations on how best to deal with your financial crisis.
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Payroll
A team of highly qualified collaborators manages around 7,000 payslips per month and currently offers related consulting services to more than 500 clients. Our mission is to set up useful processes for the employer over the long term.
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Personal Tax
Our experienced multilingual Personal Tax Team is keen to give you tailored solutions, optimise your situation and help you make decisions. We could assist you with: income tax returns, vat returns, tax assessments, contacts with the tax authorities and assistance by tax audit or tax litigation, tax matters advices, inheritance tax matters, international assignments and trainings.
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Transaction & Reorganisation
Reorganisations - Transaction Planning - Tax Structuring - M&A. Companies strive to improve their market position with take-overs, mergers and demergers. Strategy and financial tactics are important elements in this respect. Grant Thornton tax specialists may intervene in all stages of the transaction.
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Set-up, Restructuring & Business Planning
Grant Thornton Luxembourg is delighted to add value during the implementation of your businesses and to be given the opportunity to grow together with you. Relying on our professionals’ financial expertise will allow you to take dynamic but sustainable decisions.
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Tax - Financial Services & Operational Tax
Our Tax - Financial Services team provides tax advisory services relevant for the Financial Services Industries and Operational Tax assistance. This includes tax advice, automatic exchange of information (FATCA, CRS, DAC 6, DAC 7 and DAC 8), advisory and compliance assistance regarding the US Qualified Intermediary (QI) regime, assistance regarding withholding tax reclaims, investor tax reporting and tax structuring in the context of Islamic finance.
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Transfer Pricing
The laws surrounding transfer pricing are becoming ever more complex, as tax affairs of multinational companies are facing scrutiny from media, regulators and the public. Grant Thornton Luxembourg can help you manage your transfer pricing risks and find opportunities.
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VAT and Other Indirect Tax Advice
Our VAT advisory business line is dedicated to keeping you up to date with amended VAT legislation and changes in the administrative practice in Luxembourg and worldwide with our Grant Thornton global VAT network. Specialists review and comment on new EU directives and the latest case law by the Court of Justice of the European Union in order to provide you with advice tailored to your specific needs.
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VAT and Other Indirect Tax Compliance
Handling the day-to-day VAT compliance obligations requires being close to your business. Our VAT compliance business line assists you to ensure that long term reporting processes are implemented and respected with the aim of safeguarding a proper and timely VAT filing. This is important for achieving a VAT compliant environment and mitigating local VAT risks.
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Information Security
Is your organisation resilient to information security threats? Whether you're a large enterprise or a small business, Grant Thornton is committed to providing comprehensive security services tailored to your needs.
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IT Audit
Grant Thornton internal audit team provides IT audit services as part of your internal audit or as part of any specific IT audit that is required (ad’hoc , assurance reports, external audits).
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MySmartOffice
Grant Thornton Luxembourg offers a new complete online accounting and consulting solution for SMEs named MySmartOffice to access financial and operational information instantly online.
EDPB adopts its opinion on the European Union (EU) Commission’s draft UK adequacy decisions
On 16 October 2025, the European Data Protection Board (EDPB) adopted its positive opinion on the European Commission’s proposal to extend the UK’s GDPR adequacy decision for six years beyond its expiry in December 2025.
Key takeaway
On 22 July 2025, the European Commission issued a draft decision renewing the UK’s adequacy status for 6 years, confirming that the UK GDPR and the Data Protection Act 2018 (as amended by the Data Act) remain essentially equivalent to the EU GDPR.
In its opinion, the EDPB welcomed the regulatory renewal but urged the UK Commission to closely monitor and clarify several issues, especially including:
- the new adequacy test, which omits key elements from the previous framework;
- the expanded national security exemptions;
- the UK – U.S. Cloud Act Agreement;
- the use of Technical Capability Notices that could weaken encryption; and
- the Investigatory Powers Amendment Act 2024, which permits bulk data retention and examination where individuals have “low or no reasonable expectation of privacy.”
Why is it important?
The extension of the UK adequacy decision will allow EU organisations to continue transferring personal data to the UK without needing additional safeguards.
While the final decision rests with the EU Commission, the EDPB’s assessment provides key guidance on potential risks and areas of regulatory focus, helping companies anticipate future changes and strengthen their compliance measures.
Did you know people could possibly buy your “reputation report” online?
Lithuania-based “Whitebridge Artificial Intelligence (AI)” faces a GDPR complaint for scraping personal data and selling AI-generated “reputation reports” on individuals without their consent.
Key takeaway
Whitebridge AI markets “reputation reports” on nearly anyone with an online presence, compiling scraped personal data from the web. The reports include AI-generated assumptions about individuals, such as alleged personality traits, conversation topics, and even analyses of whether users shared political, religious, or adult content.
Many data subjects are unaware their information has been collected, and the platform sells access to their own reports, rather than offering free access as required under GDPR. This business model appears to profit from users’ fear, encouraging them to pay to see what data has been gathered about them.
A non-profit organisation has filed a complaint with the Lithuanian Data Protection Authority, arguing violations of data minimization, transparency, and access rights under the GDPR.
Why is it important?
This is a reminder that AI systems can easily cross privacy lines if they collect or are used to predict information about individuals without their consent. Companies using or developing AI systems should verify data sources, consent, and access rights compliance to mitigate risks of fines from regulators as well as the potential loss of customer trust.
If your business uses AI platforms that gather or analyse personal data, it is important to check how that data is sourced and used. Our team can help you understand the risks and make sure your AI use stays safe for users’ privacy.
CNIL sanctions the SAMARITAINE for hidden cameras filming employees in stockrooms
On 18 September 2025, The French supervisory authority (CNIL) fined the company SAMARITAINE SAS €100,000 for concealing cameras in the store’s stockrooms.
Key takeaway
In August 2023, SAMARITAINE SAS installed hidden cameras disguised as smoke detectors in its stockrooms to address increasing cargo thefts. Although the cameras were removed in September 2023 after employees discovered them, the CNIL fined the company for failing to implement adequate safeguards to balance its security objectives with employees’ privacy.
The CNIL found that SAMARITAINE SAS failed to:
· conduct a Data Protection Impact Assessment or document the legitimacy of such an invasive temporary surveillance measure.
· record the processing in its Record of Processing Activities;
· involve the Data Protection Officer before installation; and
· ensure proportionality, as the cameras also recorded audio, breaching the data minimization principle.
Why is it important?
This case shows that hidden or excessive monitoring, especially in workplaces, can lead to significant fines and loss of employee trust.
Organisations using cameras or other monitoring tools should make sure they are transparent, proportionate, and properly documented.
NB: If you are based in Luxembourg, please note that the CNPD has published detailed guidance on how to lawfully implement video surveillance measures in the workplace.
Luxembourg’s CNPD reinforces the importance of appointing a DPO
The Commission Nationale pour la protection des données (CNPD) in Luxembourg has published on its website the results of its recent review of public organizations’ compliance with the obligation to appoint a Data Protection Officer (DPO).
Key takeaway
The CNPD conducted a targeted review of public-sector organisations that had not yet appointed a DPO as required under General Data Protection Regulation (GDPR) Article 37.
All reviewed institutions subsequently designated a DPO and submitted the contact details to the CNPD.
Why is it important?
The CNPD is actively verifying whether public organisations that are required to have a Data Protection Officer (DPO) have appointed one, and its review is ongoing. This shows that the regulator is constantly moving from guidance to enforcement, ensuring that organisations meeting the criteria comply with their legal obligations under the GDPR.
Failing to designate a DPO where required to do so can lead to regulatory action and reputational risks. Now is the time for organisations, both public and private, to review whether they meet the criteria and ensure their DPO appointment and notification to the CNPD are properly in place.
We can help your organisation assess whether a DPO is required, or if the DPO details have not been properly communicated to the competent authority.
Contact
Need advice on Data Protection, AI, or Whistleblowing compliance?
Our Data Protection team is ready to help. Contact us to explore how we can assist you : Dara Kelly, Co-Lead Advisory Partner, or Pasquale Esposito, Data Protection Officer.