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