Atty. Mathieu Le Tacon

Atty. Mathieu Le Tacon

Mathieu LE TACON is co-head of the « Wealth law & taxation » department. He has developed recognized expertise in asset taxation and taxation of family-run companies : taxation of restructuring operations (mergers, transfers of all assets and liabilities, founding and activation of French and foreign holding companies, active or inactive) taxation of company transfers (LBOs, OBOs, etc.) organization and optimization of asset transfers (implementation of DUTREIL agreements, manual donations of corporate securities, separation, quasi-usufruct agreements, etc.) optimization of asset tax situation

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Tax Law Attorney

Profile Summary

About Mathieu Le Tacon at a Glance

Mathieu Le Tacon is a tax attorney, practicing at Delsol Avocats. Recognitions include Best Lawyers in America — Tax Law (2026). Serves clients in Paris and the surrounding metropolitan area.

Verified attorney profile · Updated November 2026

About Mathieu Le Tacon

Mathieu LE TACON is co-head of the « Wealth law & taxation » department.

He has developed recognized expertise in asset taxation and taxation of family-run companies :

  • taxation of restructuring operations (mergers, transfers of all assets and liabilities, founding and activation of French and foreign holding companies, active or inactive)
  • taxation of company transfers (LBOs, OBOs, etc.)
  • organization and optimization of asset transfers (implementation of DUTREIL agreements, manual donations of corporate securities, separation, quasi-usufruct agreements, etc.)
  • optimization of asset tax situations (in view of income and/or wealth tax)
  • family governance
  • organization and management of overseas domicile transfers
  • structure of French assets held by non-residents
  • production and management of tax declarations (income tax, wealth tax/property wealth)
  • adjustment of overseas assets
  • assistance with tax inspections and tax litigation (applications for authorization, transactions, etc.).

He works primarily for entrepreneurs, directors, family shareholders and family-run companies.

He speaks English fluently.

Mathieu LE TACON graduated from TOULOUSE I University, where he gained a DEA postgraduate qualification in Business Law and a DESS postgraduate qualification in Tax Law.

He practiced within the law firms FIDAL (International Division – PARIS) and PDGB (PARIS) for eight years before joining DELSOL Avocats in January 2011.

He was elected by his peers as one of the Lawyers of the Year 2020 in “Tax Law” by Best Lawyers (in partnership with Les Echos).

He works regularly with major titles in the tax (Droit Fiscal, Les Nouvelles Fiscales, etc.), mainstream and economic press. He has also contributed to the publication of several books, most recently the tax section of Réglementation automobile" (L’argus de l’assurance, 2017/2018).

He participates in seminars on taxation and lectures in taxation within the postgraduate law programme of TOULOUSE I University.

He is a member of the IACF (Institute of Tax Lawyers), the DFCG (Association of Financial Directors and Management Controllers) and the editorial committee of the journal Finance & Gestion (Law and Regulation section).

Practice Areas Explained

Mathieu Le Tacon's Areas of Legal Practice

Each practice area below reflects the types of cases Mathieu Le Tacon handles, with a practical overview of what that area of law involves and how it may apply to your situation in Paris.

Tax Law in Paris

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

Mathieu Le Tacon is one of 84,606 tax attorneys indexed nationally. Browse tax attorneys →

Frequently Asked

Common Questions About Mathieu Le Tacon

Where is Mathieu Le Tacon's law office located?
Mathieu Le Tacon's law practice is located in Paris. The firm is Delsol Avocats. You can contact the office directly through this profile page.
What practice areas does Mathieu Le Tacon handle?
Mathieu Le Tacon focuses on tax. Each practice area listed reflects experience handling cases of that type in their licensed jurisdictions.
How can I contact Mathieu Le Tacon for a consultation?
You can contact Mathieu Le Tacon directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mathieu Le Tacon received?
Mathieu Le Tacon's notable recognition includes: Best Lawyers in America — Tax Law.

Professional Profile

Why Clients in Paris Choose Mathieu Le Tacon

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mathieu Le Tacon's practice in the field of tax.

Focused Tax Practice

Concentrating on tax means Mathieu Le Tacon's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.

Local Presence in Paris

A Paris-based practice means Mathieu Le Tacon attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Mathieu Le Tacon Handles in Paris

Below is a representative sample of the types of matters Mathieu Le Tacon has experience with. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

IRS audit representation
Tax
Tax lien and levy defense
Tax
Offer in compromise
Tax
Business tax planning
Tax

This list is illustrative, not exhaustive. Contact Mathieu Le Tacon directly to discuss the specifics of your situation.

Search Reference

How People Find Mathieu Le Tacon Online

Prospective clients searching for legal help in Paris commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Mathieu Le Tacon.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mathieu Le Tacon directly.

Mathieu Le Tacon's Practice Areas & Specializations

Awards & Professional Honors

Best Lawyers in America — Tax Law
- 2026

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