Strategic legal guidance for national and cross-border tax matters
From structuring investments and managing international transactions to resolving tax disputes and meeting compliance obligations, our tax law team supports businesses with clarity, precision, and commercial focus. At Lex Thielen & Partners, we provide integrated legal advice that aligns with your goals while navigating the complex framework of domestic and international tax law.
We support companies across Luxembourg and internationally, advising on the most effective structures to manage tax risks and ensure compliance. Whether you are launching a business, managing cross-border operations, or preparing for a transaction, we help you anticipate tax impacts and act with confidence.
Our Tax Law Services
- Tax Structuring and Planning
We advise on the optimal legal and tax structures for your business based on its profile, activity, and long-term plans. This includes selecting the right jurisdiction, tailoring holding or operating structures, and ensuring compliance with substance and transparency requirements. - International Trade and Tax Compliance
Advice on regulatory frameworks governing trade law, including anti-dumping, countervailing duties, and investment restrictions. We also guide businesses through their compliance obligations under global and local regimes. - Corporate and Transactional Tax
Strategic advice on tax implications for acquisitions, sales, mergers, financing arrangements, and corporate reorganisations. We help clients assess risk and align with both Luxembourg and international tax rules. - Domiciliation and Company Administration
For non-trading companies, we offer full support from incorporation to ongoing legal maintenance. This includes domiciliation, corporate housekeeping, and collaboration with accounting professionals. - Tax Controversy and Dispute Resolution
If a dispute arises, we provide strategic representation before the tax authorities and courts. From audit response and negotiations to litigation and settlement strategy, we help clients resolve matters efficiently and favourably.
Why Clients Choose to Work With Us
We help you structure transactions, entities, and operations in ways that reduce risk, improve tax efficiency, and stand up to scrutiny.
With our membership in the Alliott Global Alliance, you benefit from coordinated tax guidance across jurisdictions, delivered locally and applied globally.
We do not just interpret tax law. We help you apply it in ways that make business sense, whether you are entering a market, restructuring, or preparing for exit.
From audits to litigation, we act quickly, strategically, and with discretion to protect your position and resolve disputes efficiently.