#M&A Lawyer in France: Mergers and Acquisitions

M&A Lawyer in France: Mergers and Acquisitions

Mergers and acquisitions (M&A) draw simultaneously on company law, tax, employment law, intellectual property, competition law and contract law. The preparatory phase, negotiation, drafting of the transaction documents, closing and post-transaction support require rigorous coordination. Our firm acts for both sellers and buyers, for SMEs, mid-sized companies, groups, investment funds and directors, in Paris and throughout France.

This page sets out our approach to mergers and acquisitions: legal framework, how a transaction unfolds, types of transaction, sensitive contractual clauses, tax and employment treatment, and post-closing issues. Each matter is examined in light of the applicable law and the chosen structure.

The role of the lawyer in an M&A transaction

The lawyer acts before, during and after the transaction. Upstream, the lawyer conducts the legal due diligence: identifying corporate, tax, employment, contractual, regulatory and litigation risks. This phase results in an audit report that shapes the price, the warranties requested and sometimes the very decision to proceed. Where the data room is complex, the lawyer coordinates the teams and summarises the points of attention.

During the negotiation, the lawyer drafts the pre-contractual documents (letter of intent, NDA, term sheet), then the final transaction documents: sale and purchase agreement (protocole d’accord), shareholders’ agreement, warranty and indemnity (garantie d’actif et de passif), financing agreements, intra-group agreements. The lawyer advises on conditions precedent (clearance by the French Competition Authority (Autorité de la concurrence), information and consultation of the CSE (social and economic committee) under Article L. 2312-8 of the French Labour Code (Code du travail), sector-specific approvals). The lawyer also manages the legal publication formalities (for a merger, Article R. 236-2 of the French Commercial Code (Code de commerce)).

Closing is the completion of the transaction. The lawyer checks that the conditions have been satisfied, manages the signing, the transfers of shares, the amendment of the registration with the Trade and Companies Register (RCS) and the filing of tax returns. Beyond closing, the lawyer follows up on warranty undertakings, handles any disputes and assists with post-integration restructurings.

What is a merger and acquisition transaction?

A merger and acquisition transaction covers any combination of businesses by which one company acquires all or part of the control of another, either by purchasing shares, by purchasing assets or by a merger in the strict sense. Mergers are governed by Articles L. 236-1 et seq. of the French Commercial Code (in French), which distinguish between merger by absorption, merger by formation of a new company, and demerger. These rules were modernised by Directive (EU) 2019/2121, transposed into French law.

An acquisition by purchase of shares (share deal) transfers the shares and, consequently, all of the target company’s liabilities. The acquisition of individual assets (asset deal) makes it possible to select the items taken over and to leave certain risks with the seller. The choice between these structures determines the tax treatment, the formalities, the transfer of contracts and the employee information and consultation process.

Our corporate team combines strategic advice, drafting of transaction documents and management of post-transaction disputes. We work alongside our clients from the preliminary audit through to actual implementation, in coordination with our tax, employment and intellectual property teams. For related issues, see our corporate lawyer in Paris, company law lawyer and sale and purchase of a business lawyer pages.

Structuring the transaction: share deal, asset deal or merger

A share deal consists of the transfer of the target company’s shares. The buyer acquires the company as it stands, with its known and unknown liabilities. The warranty and indemnity (garantie d’actif et de passif) is then an essential instrument: it sets out the seller’s representations on the company’s substance, the thresholds and caps on indemnification, the duration and the procedures for making a claim.

An asset deal transfers individual assets (a business (fonds de commerce), a complete line of business). The formalities are heavier and certain transfers are governed by mandatory rules, for example Article L. 1224-1 of the Labour Code on the automatic transfer of employment contracts upon the transfer of an autonomous economic entity.

A merger in the strict sense entails the universal transfer of the assets and liabilities of the absorbed company to the absorbing company, with the former dissolved without liquidation. It follows the rules of Articles L. 236-1 et seq. of the Commercial Code: draft merger terms, merger auditor’s report (unless waived), general meetings approving the transaction, and post-merger formalities. The simplified merger (Article L. 236-11 of the Commercial Code) lightens the procedure where the absorbed company is 100% owned by the absorbing company.

Legal due diligence in France: scope and deliverables

Legal due diligence covers all risk areas. The scope is agreed upstream with the client, depending on the size of the target and the investor’s priorities. The usual areas are governance, strategic contracts (customers, suppliers, distribution), intellectual property and know-how, employment, regulatory, tax, real estate, litigation and compliance (anti-corruption, GDPR, international sanctions).

The main deliverable is a due diligence report organised by risk, with, for each point, an assessment in terms of probability, financial impact and options for dealing with it (price, specific indemnity, condition precedent, resolution of the issue before signing). The report feeds directly into the negotiation of the letter of intent and then of the final agreement. We ensure the confidentiality of the data room, compliance with disclosure rules and proper coordination with the financial auditors.

Key contractual clauses in an M&A deal

The warranty and indemnity (garantie d’actif et de passif) is at the heart of the buyer’s protection. It combines the seller’s representations with an undertaking to indemnify. The drafter must calibrate the thresholds (de minimis and deductible), the cap (as a percentage of the price), the duration (12 to 36 months depending on the risks, sometimes longer for tax and employment matters), escrow or guarantee mechanisms, and the exclusions (buyer’s knowledge, disclosure letter).

Price adjustment clauses (earn-out, locked box, completion accounts) align the price paid with post-closing performance or with the financial position at the effective date. Each mechanism has its own calculation rules and typical disputes; the drafting must precisely define the indicators, the reference accounting rules and the arbitration arrangements.

Non-compete clauses regulate the seller’s activity after the sale. To be valid, they must be limited in duration and geographical scope, relate to a defined activity and impose a restriction proportionate to the buyer’s legitimate interests. The non-solicitation clause protects business and personal relationships. Support undertakings (transition services agreement) set the conditions for the handover period.

Tax and employment treatment of M&A transactions in France

The tax treatment depends on the chosen structure. A share deal, in principle, does not trigger tax for the target company. For an individual seller, the capital gain is subject to income tax at the flat rate of 12.8% (Article 200 A of the French Tax Code (CGI) (in French)), plus social levies, unless an overall election is made for the progressive income tax scale (paragraph 2 of Article 200 A), with special regimes (Dutreil pact under Article 787 B for transfers by gift or inheritance, tax deferral through contribution and sale (apport-cession) under Article 150-0 B ter CGI, allowance for retiring directors under Article 150-0 D ter CGI, subject to conditions).

An asset deal generates, for the selling company, a business capital gain subject to corporate income tax at the standard rate, with possible favourable regimes (partial exemption on the sale of a complete line of business for SMEs within the meaning of Article 238 quindecies of the CGI). Registration duties are payable on the price of the assets transferred.

On the employment side, information and consultation of the CSE is mandatory before any substantial disposal (Article L. 2312-8 of the Labour Code). For certain SME sales, employees must be informed in advance so that they can submit an offer (the so-called “Hamon law” scheme codified in Articles L. 23-10-1 et seq. of the Commercial Code). Our team systematically aligns these obligations with the transaction timeline.

Regulatory authorities and clearances

M&A transactions may trigger several regulatory reviews. Merger control is provided for in Articles L. 430-1 et seq. of the Commercial Code: above certain turnover thresholds, the transaction must be notified to the French Competition Authority (Autorité de la concurrence) and cannot be completed before clearance. At European level, Regulation (EC) 139/2004 requires notification to the European Commission when certain EU thresholds are met.

Foreign investment screening (Articles R. 151-1 et seq. of the French Monetary and Financial Code) applies to sensitive sectors (defence, security, health, energy, critical infrastructure, sensitive data, technologies). Prior authorisation from the French Ministry of the Economy may be required. Regulation (EU) 2019/452 also establishes a framework for cooperation between the Member States and the Commission for the screening of foreign direct investments.

How our firm assists you

Our team acts at every stage: strategic scoping, due diligence, drafting and negotiation of transaction documents, closing, post-transaction integration. We work in coordination with our tax, employee and management incentives and intellectual property teams, and with our clients’ usual financial advisers (investment banks, chartered accountants, statutory auditors).

Our matters cover mid-sized transactions, build-ups carried out by investment funds and international acquisitions, in coordination with correspondents abroad. To present a sale or acquisition project, please contact us using the firm’s contact form.

Frequently asked questions

What is the role of an M&A lawyer?

The lawyer structures the transaction, conducts the legal due diligence, drafts and negotiates the transaction documents (sale and purchase agreement, shareholders’ agreement, warranty and indemnity, conditions precedent), organises the closing and supports the buyer or seller in the post-transaction period (warranty claims, integration, any disputes). The lawyer coordinates corporate, tax, employment and regulatory issues.

When should you bring in an M&A lawyer?

As early as possible: from the intention stage, before signing a letter of intent or an NDA. Early involvement makes it possible to define the scope of the due diligence, anticipate regulatory obligations (competition, foreign investment, information and consultation of the CSE) and preserve your negotiating position. For matters at an advanced stage, it remains essential to review the transaction documents and undertakings before signing.

What is the difference between a share deal and an asset deal?

A share deal transfers the company (its shares), with all its assets and liabilities as a whole. An asset deal transfers individual, selected assets. A share deal is often simpler in terms of formalities but transfers the liabilities. An asset deal allows assets to be sorted but requires each contract, lease and employee to be dealt with individually, at a higher tax and administrative cost.

What is a warranty and indemnity (garantie d’actif et de passif)?

It is an undertaking by the seller to indemnify the buyer if the assets or liabilities of the company sold differ from the representations made at the time of the sale. The terms (thresholds, cap, duration, exclusions) are negotiated; making a claim generally requires written notice within precise time limits and may be secured by an escrow or a bank guarantee.

When must a transaction be notified to the French Competition Authority?

A concentration must be notified when it exceeds the thresholds set out in Article L. 430-2 of the Commercial Code (since 1 September 2026: total worldwide turnover, excluding VAT, of the undertakings concerned of more than €250 million, turnover in France of at least two of the parties of more than €80 million, and a transaction outside the scope of Regulation (EC) No 139/2004; lower thresholds apply to retail trade and to the French overseas territories). Notification is a condition precedent to completion; failure to comply is subject to financial penalties.

How does legal due diligence work?

Due diligence begins with the seller opening a data room and sending a document checklist. The buyer’s legal team reviews the documents, raises further questions and produces a report organised by area (corporate, contracts, employment, tax, intellectual property, litigation, regulatory). This report identifies the risks, the necessary conditions precedent and the points to be covered by the warranty.

How long does an M&A transaction typically take?

For a mid-sized transaction, you should generally allow three to six months between signing the letter of intent and closing. The timing depends on the scope of the due diligence, whether a merger control filing is needed, the information and consultation of employee representatives and the complexity of the warranties negotiated.

What happens in the event of a post-closing dispute?

Most contracts provide for a procedure for notifying the claim, a time limit for responding and an attempt at amicable settlement before court or arbitration proceedings are commenced. The commercial court (tribunal de commerce), for commercial disputes, or the arbitral tribunal, where there is an arbitration clause, decides the dispute. Our firm acts for claimants and defendants, from the warranty claim through to enforcement of the award.

Every situation is different: the information on this page is general and does not replace legal advice tailored to your case. The firm makes no promise of outcome; it commits to the means it deploys.

What is the difference between a merger and an acquisition?

A merger combines two companies into one: the absorbed company transfers all of its assets and liabilities to the absorbing company, then ceases to exist. An acquisition consists of taking control of a target company by buying its shares or its assets, with each legal entity continuing to exist. The choice between these structures depends on the legal, tax and operational objectives of the transaction, and is made at the structuring stage.

Why use a mergers and acquisitions lawyer?

An M&A transaction concentrates corporate, tax, employment and regulatory issues within a tight timetable. The lawyer identifies the risks during due diligence, calibrates the warranty and indemnity, negotiates the sensitive clauses and secures the closing. This contractual security limits post-closing disputes. Every transaction is different: the approach is scaled to the size and stakes of the matter.