M&A Transactions in Spain

A mid-sized European business agrees a price with a Spanish target, signs a term sheet, and assumes the deal will close within three months. Six months later, the transaction is still open. stalled by a regulatory filing that was not identified during initial due diligence. A notarial requirement that was overlooked. Additionally, a dispute over representations in the share purchase agreement. The cost of delay has already exceeded the original advisory budget.

M&A transactions in Spain involve a structured sequence of due diligence, negotiation, regulatory clearance, and notarial execution under Spanish corporate legislation. The primary legal vehicle is either a share purchase or an asset acquisition, each with distinct tax, liability, and procedural consequences. Timelines from letter of intent to closing typically run between two and six months, depending on deal complexity and whether regulatory approvals are required.

This page covers the full lifecycle of an M&A transaction in Spain: the applicable legal instruments, procedural requirements. Common pitfalls for cross-border buyers, strategic considerations involving Portugal and the EU. Additionally, a self-assessment checklist for deal readiness.

The Spanish M&A environment: regulatory system and structural choices

Spain offers a well-developed but procedurally demanding environment for corporate acquisitions. Spanish corporate legislation establishes two principal entity types that feature in most transactions: the Sociedad Anónima (SA), a public limited company suited to larger or listed businesses. Additionally. The Sociedad de Responsabilidad Limitada (SL), a private limited company that represents the most common vehicle for mid-market deals. Each structure carries different rules on share transferability, governance, and minority protections – factors that materially affect deal structure and negotiation.

The applicable body of law spans corporate legislation, competition law, foreign investment rules, tax legislation, and, where applicable, sector-specific regulation in areas such as financial services, energy, real estate, and media. An international buyer must identify all applicable regulatory regimes before executing a binding agreement. Failure to map these obligations at the outset is the single most common cause of deal delay in Spain.

Spain's competition authority has jurisdiction to review concentrations that meet domestic thresholds. Deals that also meet EU-level thresholds are reviewed by the European Commission rather than the Spanish authority. Parallel filings – where a transaction requires clearance from both a Spanish sectoral regulator and a competition body – are more frequent than buyers expect, particularly in telecoms, energy, and healthcare. Each filing adds weeks or months to the timeline.

Foreign investment restrictions apply to acquisitions by non-EU buyers above certain thresholds, and screening obligations were extended in recent years to cover a broader range of sectors. EU-based buyers are not automatically exempt from all screening requirements where a deal involves a strategic sector. Identifying the correct screening obligation early is essential: a closing that proceeds without the required clearance may be declared void.

Clients working on Spanish acquisition structures alongside their Portuguese operations will find relevant structural comparisons in our M&A transactions practice in Portugal, where parallel civil law rules apply with distinct procedural variations.

Key legal instruments: from letter of intent to closing

A Spanish M&A transaction moves through several contractually and procedurally distinct stages. Understanding each stage – and its legal consequences – is essential for a buyer entering the Spanish market for the first time.

Letter of intent and exclusivity. Most transactions begin with a non-binding letter of intent or term sheet. In Spain, courts have applied general civil law principles of pre-contractual good faith to these instruments. A party that withdraws from negotiations after inducing the other to incur significant costs may face liability under civil law doctrine even where the letter of intent is expressed as non-binding. This is a non-obvious risk. Buyers should draft exclusivity and break-fee provisions with care and ensure the letter of intent clearly delineates which terms are binding.

Due diligence. Thorough due diligence is the foundation of any Spanish acquisition. A well-conducted process examines corporate structure and ownership chain, registered encumbrances at the Registro Mercantil (Commercial Registry), real property at the land registry, tax liabilities, employment obligations, pending litigation, environmental exposure, and IP title. The Registro Mercantil holds publicly accessible records on share capital, directors, charges, and filed accounts. However, Spanish registry entries do not always reflect the full picture of a company's obligations. Practitioners in Spain consistently note that off-balance-sheet liabilities and informal employee arrangements surface during due diligence and require separate investigation beyond the public record.

Share purchase agreement. The share purchase agreement (SPA) is the central instrument in a share deal. Spanish SPAs follow broadly similar architecture to English-law equivalents, but there are important differences in how representations and warranties operate under Spanish civil law. Liability for breach of representations and warranties is governed by Spanish civil legislation unless the parties have elected a foreign governing law. a choice that is available in cross-border transactions but carries its own enforcement complexities. Indemnity regimes, limitation periods, and the interaction between contractual warranties and statutory hidden defect rules require careful drafting. Buyers accustomed to English-law SPAs should not assume that familiar concepts translate directly.

Conditions precedent and closing conditions. Closing conditions in a Spanish SPA typically include regulatory clearances, third-party consents, satisfaction of conditions in financing agreements, and completion of pre-closing restructuring steps. Each closing condition must be drafted with a specific longstop date and a clear allocation of the risk of non-satisfaction. Spanish courts have addressed disputes arising from ambiguously drafted closing conditions. Additionally. The consequences of an uncertain condition precedent clause can include either a party being locked into a deal it wishes to exit or losing the right to walk away from a deteriorating target.

Notarial execution. A share transfer in a Spanish SL is required to be executed before a Notario (civil law notary) to be valid. This requirement – which does not apply to SA shares in the same way – is frequently underestimated by buyers from common law jurisdictions. Arranging a Notario appointment requires advance scheduling and preparation of Spanish-language documentation. If the buyer or seller is a foreign entity, additional requirements apply: foreign companies must demonstrate their legal existence and the authority of their signatories to the notary's satisfaction. Typically through apostilled corporate documents accompanied by sworn translations. Last-minute document shortfalls at the notary's office are among the most avoidable yet most common causes of closing delays in Spanish M&A.

After notarial execution, the share transfer must be registered in the company's book of shareholders and, in many cases, notified to or registered at the Registro Mercantil. Registration is not a condition of validity between the parties, but it is essential for the transfer to be effective against third parties.

For clients who also need to understand how corporate governance arrangements function after closing, our corporate law practice in Spain covers post-acquisition governance, directorship obligations, and ongoing compliance requirements.

To receive an expert assessment of your acquisition structure in Spain, contact us at info@ferrazwhitmore.com.

Practical insights and common pitfalls for cross-border buyers

International acquirers consistently encounter a set of recurring problems in Spanish M&A that are predictable and avoidable with proper preparation.

Tax structuring and asset versus share deal. The choice between a share deal and an asset deal has significant tax consequences under Spanish tax legislation. A share deal typically transfers the target's tax history to the buyer, including any hidden liabilities from prior periods. An asset deal may allow a buyer to obtain a step-up in the tax basis of acquired assets, but triggers transfer taxes and may require individual consents from counterparties to assigned contracts. The optimal structure depends on the target's tax position, the buyer's holding structure, and the intended financing arrangement. Buyers who select a structure without tax analysis at the term sheet stage frequently discover that their preferred structure is economically inferior to an alternative they did not consider.

Employment obligations. Spanish employment legislation provides strong protections for employees. In an asset deal, employees assigned to the transferred business are transferred to the buyer by operation of law, with continuity of employment terms. In a share deal, the buyer steps into the seller's employment relationships without interruption. Either way, the buyer inherits the target's collective agreements, pending employment claims, and any redundancy obligations. Spanish labour courts are active and award significant compensation for unfair dismissal. A buyer that assumes it can restructure the workforce immediately after closing without following a regulated procedure will face litigation and financial exposure.

Real estate embedded in targets. Where the target owns or leases real estate, Spanish property law requires separate analysis. Charges registered against real property do not appear on the company's Registro Mercantil entry – they are recorded in the land registry, which must be searched independently. Properties subject to urban planning restrictions or environmental charges require additional investigation. A buyer that conducts only a company-level due diligence without a property title report may acquire a target with real estate encumbrances that were never disclosed.

Representations, warranties, and the civil law gap. Under Spanish civil legislation, there are statutory remedies for hidden defects in the object of a sale that exist independently of contractual warranties. The interaction between these statutory remedies and a negotiated SPA indemnity regime can create unintended liability exposure. Sellers may attempt to contract out of statutory remedies, but courts have not always enforced such exclusions in their entirety. Buyers should ensure that the SPA does not inadvertently limit remedies that would otherwise be available under applicable civil law.

Minority shareholder rights. Spanish corporate legislation grants minority shareholders in both SAs and SLs a range of rights. including rights to information. Rights to challenge corporate resolutions. Additionally, in some cases drag-along or tag-along rights under shareholders' agreements. In acquisitions where the seller retains a minority stake, these rights must be addressed in the transaction documents. The Tribunal Supremo (Supreme Court of Spain) has addressed the limits of contractual modification of statutory minority rights, and some restrictions cannot be waived by agreement.

Financing and security structures. Spanish financial assistance rules restrict the ability of a target company to provide financial assistance for the acquisition of its own shares. Leveraged buyout structures must be designed with these restrictions in mind. Post-closing upstream mergers and refinancings are common workarounds, but each step requires separate regulatory and tax analysis. Buyers relying on acquisition financing must also ensure that security packages over Spanish assets are properly registered to be effective. unregistered charges over Spanish real estate and certain other assets are ineffective against third parties.

For a tailored strategy on cross-border acquisition structuring in Spain, reach out to info@ferrazwhitmore.com.

Cross-border and strategic considerations: Portugal, the EU, and beyond

Spain and Portugal share a land border, a broadly analogous civil law tradition, and deep commercial ties. Many international investors structure their Iberian presence through a combined Spanish and Portuguese holding arrangement. Understanding how Spanish M&A interacts with Portuguese and EU-level rules is therefore a practical necessity for a significant share of international clients.

EU competition clearance. Where a transaction meets EU-level thresholds, the European Commission has exclusive jurisdiction under the one-stop-shop principle, and national filings in Spain are suspended. However, the Commission may refer all or part of a case back to Spanish authorities where competition concerns are primarily national in scope. Buyers operating in sectors with significant Spanish market share should assess both the EU and domestic thresholds at the outset, since the applicable filing regime determines the timeline and procedural requirements for closing.

Iberian holding structures. The Spain-Portugal tax treaty governs dividend flows, interest, and royalties between entities in both jurisdictions. Holding companies in Spain or Portugal can offer efficient routes for repatriating returns from Iberian operations, but the chosen structure must be assessed against both jurisdictions' anti-abuse provisions and EU state aid constraints. A structure that is tax-efficient on paper may be challenged by Spanish or Portuguese tax authorities where it lacks economic substance.

Governing law and dispute resolution. International M&A transactions with Spanish targets frequently use Spanish law as the governing law for the SPA. However. Parties may also elect a neutral law. most commonly English law or Swiss law. for the main transaction documents. The choice of governing law determines which courts or arbitral bodies have jurisdiction over post-closing disputes, including warranty claims and price adjustment mechanisms. Spanish courts have jurisdiction over matters relating to Spanish registered companies even where the SPA specifies a foreign governing law and a foreign forum. So the limits of forum selection clauses must be tested against Spanish procedural rules.

Enforcement of foreign awards and judgments. A seller or buyer seeking to enforce a foreign arbitral award against a Spanish counterpart must go through the recognition process before Spanish courts. Spain is a signatory to the New York Convention, and Spanish courts generally apply the Convention's pro-enforcement approach, but local procedural requirements for the recognition application must be followed precisely. Buyers relying on arbitration clauses as their dispute resolution mechanism should verify that their chosen arbitral seat and rules are compatible with enforcement in Spain.

Economic analysis of deal structure. The break-even analysis for a Spanish acquisition must account for direct deal costs. legal, financial advisory. Notarial. Additionally, registration fees. as well as the cost of regulatory delay, potential post-closing warranty claims. Additionally, the tax cost of the chosen structure. Deals that proceed without a full economic model of the acquisition's total cost frequently discover that the headline price understated the true cost of ownership. The margin of error widens considerably in transactions involving regulated sectors, complex employment liabilities, or real estate assets.

A detailed overview of how Spanish company formation connects to acquisition readiness is available in our guide to company formation in Spain.

Self-assessment checklist for M&A readiness in Spain

A Spanish M&A transaction is viable and well-positioned for execution if the following conditions are met. Use this checklist before committing to a timeline or binding a purchase price.

Corporate and structural readiness:

• The target's corporate structure has been confirmed, including whether it is an SA or SL, and any restrictions on share transferability have been identified.
• The Registro Mercantil records have been reviewed and are consistent with the seller's representations on ownership and encumbrances.
• A shareholders' agreement or other governance document does not contain rights of first refusal or consent requirements that could block or delay the transfer.

Regulatory and filing requirements:

• Both the EU and domestic competition thresholds have been assessed and a filing strategy is in place.
• Foreign investment screening obligations have been identified and, where applicable, pre-notification contacts with the relevant authority have been made.
• Sector-specific licensing requirements that may require prior approval for a change of control have been mapped.

Due diligence and documentation:

• Legal due diligence covers company records, tax, employment, real estate, litigation, IP, and environmental – not company-level records alone.
• The SPA includes a closing conditions regime with a clear longstop date and risk allocation for non-satisfaction.
• Representations and warranties are negotiated with the interaction between contractual and statutory civil law remedies in mind.

Notarial and closing mechanics:

• All foreign entities in the chain have obtained apostilled corporate documentation and arranged sworn translations in advance of the notary appointment.
• Signatories' authority has been confirmed and documented to the notary's satisfaction.
• Post-closing registration steps at the Registro Mercantil and the company's share register have been planned and allocated to a responsible party.

Decision tree for structure selection:

• Where the target has a clean tax history and the buyer wants a quick transfer of the business as a going concern: a share deal in an SL structure, with notarial execution, is typically the fastest route.
• Where the target carries tax or employment liabilities and the buyer wants to acquire selected assets only: an asset deal provides greater selectivity but requires individual consent to contract assignments and triggers transfer tax.
• Where the transaction has a strong cross-border element involving Portugal or other EU jurisdictions: the holding structure and governing law should be settled before the SPA is drafted, not after.

Frequently asked questions

How long does a typical M&A transaction in Spain take from signing a term sheet to closing?

Most mid-market transactions in Spain close between two and six months from term sheet. Deals that require competition clearance or foreign investment screening take longer – regulatory review periods alone can add two to four months. Engaging a lawyer in Spain with cross-border M&A experience at the outset helps identify filing requirements early and build a realistic timeline.

Is it true that a share transfer in a Spanish SL always requires a notary?

Yes. Unlike the transfer of shares in a Spanish SA. This can occur by endorsement and delivery of the share certificate or through a securities account. The transfer of participation units in an SL must be executed before a Spanish notary to be legally valid. This is a mandatory requirement under Spanish corporate legislation and cannot be waived contractually. Foreign buyers often underestimate the advance preparation required to satisfy the notary's documentary requirements for foreign entities.

Can international buyers use English law as the governing law for a Spanish acquisition SPA?

Parties to a cross-border M&A transaction can elect English law or another neutral law to govern their SPA. However, certain matters – including the internal governance of the Spanish target company, the validity of share transfers. Additionally. Mandatory provisions of Spanish corporate and employment legislation – are governed by Spanish law regardless of the contractual choice. A law firm in Spain advising on cross-border transactions must ensure that the SPA's governing law clause is tested against these mandatory rules to avoid gaps in protection.

About Ferraz & Whitmore

Ferraz & Whitmore is an international law firm based in Lisbon, advising business clients across 46 jurisdictions. Our M&A transactions practice in Spain covers the full deal lifecycle – from structuring and due diligence through SPA negotiation, regulatory filings, and notarial closing – for international acquirers, investors, and sellers. The firm combines Portuguese civil law expertise with English common law tradition, giving our clients a practical advantage in Iberian and cross-border transactions where two legal systems must work in alignment. Our attorneys have advised on share acquisitions, asset deals, and cross-border mergers across both civil law and common law systems throughout Europe. Ferraz & Whitmore is a member of leading international legal associations and participates in cross-border practice groups focused on corporate transactions and M&A. The firm's Lisbon base provides direct access to Portuguese and EU regulatory systems, while our common law expertise supports contract structuring and enforcement strategies in English-speaking jurisdictions. To discuss your acquisition or disposal in Spain, contact us at info@ferrazwhitmore.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.