Tax litigation lawyer

At AlterTax, our specialization in tax litigation offers unrivalled expertise in defending your interests in the event of a tax dispute. Our team is equipped to handle both private and corporate litigation, offering strategic and legally compliant solutions.

Cyril Maucour, tax lawyer with AlterTax

Cyril Maucour tax lawyer, expert in tax litigation

Cyril Maucour stands out as a leading expert in tax litigation. With over 20 years’ experience gained in leading international and French law firms, he offers unrivalled expertise to entrepreneurs, SMEs and ETIs in a wide range of sectors, including industry, emerging technologies and pharmaceuticals. His specialization in tax litigation is the mainstay of his practice, where he employs a strategic and personalized approach to navigate through tax complexities, ensuring optimal solutions for his clients. When you choose Cyril Maucour, you benefit from expert guidance tailored to your company’s unique challenges.

Why choose us as your tax litigator?

Our firm stands out for its in-depth expertise and commitment to managing tax disputes.
Choose AlterTax for reliable representation tailored to your tax litigation needs.

Excellence and Integrity

We don’t just do things well – we strive for excellence.
AlterTax is committed to excellence in tax litigation management. We aim for impeccable quality in our defense strategies, paying meticulous attention to every detail to ensure optimal solutions tailored to your specific situation.

A relationship of trust

We believe in working together on the basis of mutual trust. Being your litigation tax lawyer means being your strategic partner. We are committed to always acting in your best interests, ensuring total transparency and unwavering integrity.

Responsiveness and efficiency

In the fast-paced world of finance and business, every moment counts. We value your time as much as you do. Our promise? Providing fast answers and optimal solutions. Objective? Maximize results while minimizing waste of financial resources.

AlterTax: Your ally for a smooth path through tax litigation

At the heart of the challenges of tax litigation, AlterTax is the partner that ensures a smooth process. Our expertise transforms obstacles into opportunities, guiding your business through complexities with agility and precision. With AlterTax, each stage of the process is as controlled as a ball that follows its path, without deviating.

Unshakeable Defense Strategy

Our proven strategic approach is the result of rigorous analysis and meticulous preparation. AlterTax builds a solid line of defense, so that your case follows the right path, even on the steepest slopes of tax litigation.

Personalized and adaptive advice

At AlterTax, every trajectory is unique. We calibrate our advice to fit the contours of your situation perfectly, ensuring a smooth, straightforward path to optimal results and guaranteed satisfaction.

Resolution and efficiency

We aim for fast, efficient resolution, like a ball that hits its target with precision. AlterTax is committed to minimizing friction and maximizing results, so that your tax litigation experience is synonymous with success and peace of mind.

The complex paths of taxation are not a problem for us.
Gain peace of mind with experts, plan your strategy!

FAQ on tax litigation services

Frequently asked questions about our services as a tax litigator

What is the role of a tax litigation lawyer?

A tax litigation lawyer specializes in resolving disputes between taxpayers and tax authorities. He advises and represents clients in dispute procedures, tax audits and negotiations with tax authorities.

When is it necessary to call on the services of a tax litigation lawyer?

It is advisable to call on the services of a tax litigation lawyer if you disagree with the decisions of the tax authorities, if you receive a notice of tax reassessment, or if you are the subject of a tax audit or investigation.

What kind of services does a tax litigator offer?

Services include representation before courts and tax authorities, negotiation of settlements, preparation of defenses against penalties or charges of tax fraud, and assistance with tax audits.

How can a tax litigation lawyer help reduce my tax penalties?

A tax litigator can negotiate with the tax authorities to reduce or cancel penalties, often by demonstrating the taxpayer’s good faith or identifying errors in the administration’s assessment.

Is it possible to challenge a tax ruling without going to court?

Yes, tax disputes can often be resolved through negotiation or administrative procedures before reaching the judicial stage. A tax litigator can help you explore and use these options.

Can a tax litigator handle international tax cases?

Yes, many tax litigators (like us) have the expertise to handle cases involving international tax laws and tax treaties between countries.

What's the difference between a tax lawyer and a tax litigator?

A tax lawyer generally focuses on tax planning and compliance, while a tax litigator specializes in resolving disputes and litigation with tax authorities.

Can tax litigation lawyers assist all types of clients?

Yes, they can represent a wide range of customers, including individuals, businesses, non-profit organizations and government entities.

Are the services of an international tax lawyer expensive?

Rates vary according to the complexity of your tax situation and the level of expertise required. It is advisable to discuss fees during the initial consultation. Please contact us to find out more.

What is the average duration of a tax dispute?

The duration of a tax dispute can vary considerably depending on its complexity, the administrative or legal procedures involved, and the speed of negotiations between the parties.

A tax litigation lawyer anywhere in the world? Is it possible?

As tax lawyers, we can intervene in most tax disputes before the tax authorities and administrative courts without geographical constraints. We also act for foreign administrations, whether to plead, advise or represent our clients in any city or country.

Our various services as tax lawyers in tax litigation but not only

Our firm excels in managing tax disputes, offering expertise dedicated to both individuals and businesses. We focus on tailor-made solutions, from tax audit defense to litigation representation. Our mastery of national and international tax regulations enables us to propose customized, effective defense strategies.


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specialized in tax litigation
we represent and defend your interests in tax disputes. Our approach is aimed at resolving disputes with the tax authorities effectively, with priority given to amicable solutions or representation before the courts.


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Tax litigation in Paris and throughout France

Based in Paris, our firm specializes in tax litigation, offering its expertise not only in the capital but also in several major French cities and abroad. Whether you’re based in Toulouse, Bordeaux, Lyon, Marseille or anywhere else in the world, our team is ready to help you with your tax disputes. We master local and international tax specificities, guaranteeing first-rate assistance wherever you are.