AlterTax –
Tax lawyer

Altertax Avocats, based in Paris, is your reference in tax law for businesses and individuals. Our range of skills covers key areas such as tax compliance, strategic tax planning, transfer pricing, corporate restructuring, VAT and international taxes, ensuring comprehensive coverage to successfully navigate the complex tax landscape.

AlterTax Avocats emblem logo

AlterTax Avocats – The reference in tax law

AlterTax Avocats embodies excellence and innovation in tax law. With solid experience built up over more than two decades, our firm is the preferred partner of entrepreneurs, SMEs and ETIs in a wide range of sectors, including industry, tech and pharmaceuticals. We are proud of our specialization in tax law, which forms the foundation of our firm, enabling us to develop tailor-made strategies and propose legal solutions tailored to each client’s specific challenges. At AlterTax Avocats, you’ll benefit from top-level support tailored to your company’s specific challenges.

Why choose us as your tax lawyers?

At AlterTax, our reputation in tax law is founded on in-depth expertise and a rigorous approach.
Our commitment is to navigate with you through the complexities of tax law to achieve optimal results.

Excellence and Integrity

We don’t just do things well – we strive for excellence.
Our firm is dedicated to excellence in tax law. We make it a point of honor to ensure impeccable quality. By paying close attention to every detail, we ensure that every tax solution is rigorously designed and perfectly aligned for you.

A relationship of trust

We believe in working together on the basis of mutual trust. Being your 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 Avocats: Your guide to a controlled path in tax law

In the complex world of tax law, AlterTax Avocats is the firm to point you in the right direction. We are the architects of a seamless tax strategy, where every decision is another step on the road to compliance and optimization. With AlterTax, every aspect of your tax journey is carefully mapped out, like a ball following its course with impeccable precision.

Precise tax navigation

In the labyrinth of tax returns and compliance obligations, AlterTax offers you a reliable path. Whether structuring an M&A operation or optimizing your research tax credits, our expertise ensures that your tax trajectory remains impeccable.


Tax advice

We help you overcome obstacles such as tax audits and challenges to government rulings, ensuring that your business stays on track for success and growth.


Strategic Tax Optimization

Take the path of tax optimization with AlterTax. Whether it’s applying favorable tax regimes, defending VAT disputes, or negotiating advance pricing agreements, we’ll work with you to ensure that every step is taken with confidence and control, minimizing risk and improving your tax efficiency.

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

FAQ tax lawyers

Frequently asked questions about our services as tax lawyers

What can a tax lawyer do for me?

A tax lawyer can help you navigate the complex tax system, whether you need advice on tax planning, handling tax disputes, or representation in the event of a tax audit. We offer specialized expertise to optimize your tax situation while complying with current regulations.

We also offer complementary expertise:

How can a tax lawyer help my company?

For businesses, a tax lawyer offers essential services such as assistance in the tax structuring of business operations, advice on tax compliance, and representation in disputes with tax authorities. Our aim is to maximize your tax efficiency while minimizing your legal risks.

Can you represent customers outside Paris?

Although based in Paris, our expertise in tax law extends nationally and internationally. We are authorized to represent and advise clients throughout France and abroad in tax matters.

What is your experience of international taxation?

Our team has extensive experience in international taxation, enabling us to advise effectively on the tax implications of cross-border transactions and international tax compliance.

What types of tax disputes can you handle?

We manage a wide range of tax disputes, including disagreements over tax assessments, penalties, and tax audits. Our approach aims to resolve disputes efficiently, whether through negotiation or in court.

A tax 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

Located in the heart of Paris, our firm specializes in tax law, offering first-rate legal services to a diverse clientele. Whether you’re an individual or a company, our expertise covers all facets of tax law, from tax optimization to tax compliance advice. Our tailor-made approach, combined with in-depth knowledge of French and international tax regulations, enables us to provide effective, customized solutions to meet your specific tax requirements.


Tax lawyer

As a
tax lawyers
we offer in-depth legal advice to effectively manage your tax liabilities and entitlements. Our expertise extends to all aspects of taxation, ensuring a comprehensive approach.


Tax advice

We offer
tax advice
aimed at optimizing your tax situation while complying with current regulations. Our aim is to help you navigate the complex tax landscape with confidence and clarity.


Tax audit lawyer

As a
tax auditors
our team offers expert representation to defend your interests. We intervene at every stage of the process to minimize the risks and potential impact on your financial situation.


International tax lawyer

Our expertise as
international tax lawyer
can help you meet the tax challenges of cross-border operations. We provide legal advice on navigating complex tax regulations.



Tax litigation lawyer

As a
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.


Wealth lawyer

We offer legal expertise in wealth
wealth management as a lawyer
with an emphasis on real estate taxation. We help our customers optimize the tax impact of their real estate assets, whether for management, acquisition or transfer.

Tax lawyers in Paris and around the world

Our Paris-based tax law firm offers tax law expertise not only in the capital, but also in several major cities in France and internationally. Whether you’re based in Toulouse, Bordeaux, Lyon, Marseille or anywhere else in the world, our dedicated team is ready to provide you with expert tax advice. We understand the local and international nuances of taxation, ensuring you receive first-rate legal support wherever you are.