Sixty per cent of Spanish limited liability companies have between two and four shareholders. And at some point in the life of the business, the relationship between them will come under strain. This is not a hypothesis — it is statistics. Businesses that began with a handshake and full mutual trust end up, years later, with shareholders who no longer communicate, general meetings that conclude in legal challenges, or business assets destroyed by litigation that nobody wanted but nobody knew how to avoid.
For foreign shareholders in Spanish companies — whether investors in a joint venture, partners in a subsidiary, or expats who co-founded a business in Spain — the challenge is compounded by distance, language and an unfamiliarity with how Spanish corporate law actually works in practice. English-language resources on this subject are nearly non-existent. This guide aims to fill that gap.
The good news is that shareholder disputes are treatable. There are legal, financial and mediation tools that can resolve virtually any corporate dispute without destroying what has been built. The less welcome news is that these tools have windows of opportunity: they work if activated in time and in the correct sequence. Once a dispute is in litigation, the options narrow, the costs escalate, and the business typically suffers damage regardless of who wins.
This guide is a decision map. Its purpose is not to describe the conflict but to help resolve it.
The 4 Most Common Causes of Shareholder Disputes in Spain
Understanding the root cause of a dispute is the first step in choosing the right solution. Most shareholder conflicts in Spain originate in one of four categories.
1. Divergent Strategic Vision
Two shareholders can agree that the business is performing well and still enter into complete conflict about what to do next. One wants to reinvest profits to grow, open new business lines or expand internationally. The other wants to distribute dividends, consolidate what has been achieved and take no further risk. Neither is wrong — they represent equally valid strategies with different risk profiles. But when neither can prevail over the other due to capital structure (for example, a 50/50 split), the company enters decisional paralysis. The business cannot move forward because its owners cannot agree on the direction.
2. Imbalance of Contribution
The shareholder who works twelve hours a day — managing the team, closing deals, solving operational problems — eventually views the shareholder who only appears at annual meetings very differently. Even when both hold equal percentages, the perception of asymmetric contribution generates resentment that, if not addressed formally, escalates. This conflict is particularly common when the company was established with equal partners but one assumed an executive role as the business grew while the other remained a passive investor. The solution is not moral — it is contractual. The shareholders’ agreement must regulate compensation for executive work independently of dividend rights.
3. Remuneration and Expenses
Disagreements about salaries, benefits in kind, company cars, entertainment expenses and allowances are a constant source of shareholder tension. The director-shareholder who sets their own remuneration has a structural conflict of interest. Spanish company law (art. 217-219 LSC) requires that director remuneration be provided for in the articles of association and approved at a general meeting, but shareholders frequently circumvent this through senior management contracts or arrangements outside the company that generate opacity and, eventually, legal challenges. A remuneration system that is agreed, transparent and binding on all parties is the only durable solution.
4. Succession and Inheritance
The death of a shareholder introduces new title holders into the company who did not choose to be there and who do not necessarily share the vision or culture of the business. The heirs of a deceased shareholder may be a spouse, children or family members with no prior connection to the company, who suddenly have the right to participate in shareholder meetings, receive dividends and even block resolutions. The surviving shareholder finds themselves sharing a company with people with whom they negotiated nothing. If the articles of association do not regulate the regime for transmission upon death — and in most small Spanish private companies they do not — the conflict can rapidly escalate into litigation combining corporate and succession law.
Law 1/2025 Changes the Rules: Mandatory Mediation Before Litigation
Before setting out the resolution options, it is essential to understand the legal framework that now surrounds them. Since the entry into force of Law 1/2025 of 13 January on Measures for the Efficiency of the Public Justice Service, the procedural landscape in Spain has changed substantially.
What the Law Requires
Law 1/2025 establishes that, before filing a civil or commercial claim, the parties must demonstrate that they have attempted an Appropriate Dispute Resolution Method (Medio Adecuado de Solución de Controversias, or MASC). This explicitly includes corporate disputes between shareholders. The MASC attempt is now a procedural prerequisite: without it, the court may refuse to admit the claim.
This is a significant departure from prior practice, where mediation was voluntary. For ongoing disputes — including those where one party has already instructed solicitors — the obligation applies. It is not sufficient to have exchanged legal letters; a genuine attempt at a recognised MASC procedure must be documented.
What Counts as a MASC
The law is broad in its definition. The following qualify:
- Mediation before a certified mediator or accredited mediation institution
- Conciliation before a notary or at the Companies Registry
- Negotiation with legal assistance from both parties, provided it is properly documented
- Other equivalent procedures provided for in sectoral regulations
The MASC Attempt Certificate
To demonstrate the attempt before the court, it is necessary to obtain a certificate from the mediator or institution confirming that the information session or mediation procedure was convened and concluded without agreement — or that the other party failed to attend. This certificate is the procedural passport to litigate.
What Happens if the Requirement Is Omitted
If a claim is filed without demonstrating a MASC attempt, the court may:
- Refuse to admit the claim for failure to meet a procedural prerequisite
- Suspend the proceedings and allow time to rectify the omission
- Where the omission is raised by the opposing party, declare the proceedings null and void
The practical consequence is an additional delay of several months and unnecessary costs.
Why This Is, In Practice, an Advantage
The legislature did not create this requirement to obstruct access to justice, but to reduce unnecessary litigation. The data support the approach: commercial mediation achieves agreement in more than 70% of cases when both parties participate in good faith. For shareholders in dispute, this means that before spending €30,000 on two years of litigation that may destroy the business, the law requires them to sit at the table. And at that table, the majority of disputes are resolved.
For international shareholders specifically, the mediation route often offers an additional advantage: the process can be conducted in English with a bilingual mediator, avoiding the translation costs and jurisdictional uncertainty that make Spanish litigation particularly unappealing for foreign parties.
For more detail on the procedure, see our page on business mediation.
Resolution Options: a Five-Level Framework
A shareholder dispute does not have a single solution. It has five levels of intervention, each more costly, slower and more damaging to the business than the one before. The correct decision is always to intervene at the lowest possible level.
Level 1: Renegotiate the Shareholders’ Agreement
When to apply: The relationship remains viable. The conflict is discrete or results from a lack of contractual regulation.
If the company has no shareholders’ agreement, this is the moment to create one. If it has one, this is the moment to update it. The shareholders’ agreement is the most efficient instrument for preventing and resolving corporate disputes because it establishes the rules of the game before it is necessary to invoke them.
The clauses that should be present or reviewed under conditions of tension are:
Right of first refusal (tanteo y retracto). Before selling shares to a third party, the departing shareholder must first offer them to the existing shareholders on the same terms. This prevents unwanted third parties from entering the company.
Tag-along right. If the majority shareholder sells, the minority shareholder has the right to sell on the same terms. This protects the minority against changes of control that are unfavourable to them.
Drag-along right. If the majority shareholder receives an offer to acquire 100% of the company, they can oblige the minority to sell as well. This facilitates corporate transactions and prevents a minority shareholder from blocking a sale that creates value for all.
Non-compete. The departing shareholder may not compete directly with the business for a defined period (typically two to three years).
Deadlock resolution clause. An automatic mechanism for resolving situations where shareholders cannot reach agreement on critical decisions.
Renegotiating the shareholders’ agreement requires the willingness of both parties and specialist legal advice. It is the cheapest intervention level and the one that best preserves the corporate relationship.
See the key elements of a well-structured shareholders’ agreement.
Level 2: Negotiated Buy-Sell
When to apply: One party wants to exit, or the relationship is unsustainable, but both shareholders prefer to resolve the price privately.
A negotiated buy-sell is the cleanest solution when the conflict is irreconcilable but both parties retain sufficient rationality to negotiate. One shareholder buys out the other at an agreed price, and the company continues under the buyer’s sole control.
Price is the central problem. The seller wants the maximum; the buyer wants the minimum. The solution is to commission an independent valuation from a third party acceptable to both sides. This valuation is not binding in itself, but it provides an objective basis that narrows the negotiating space and facilitates agreement.
When direct negotiation on price is impossible, two buy-sell mechanisms exist that Anglo-Saxon practice — and an increasing number of Spanish shareholders’ agreements — have adopted:
Russian roulette clause. One shareholder proposes a price for 100% of the company. The other must choose: either buy the first shareholder’s interest at that price, or sell their own interest to the first shareholder at that same price. The mechanism forces whoever sets the price to be reasonable, because it is the other party who decides which side of the transaction they occupy.
Shotgun clause. One shareholder declares: “I will buy your shares at X, or sell you mine at X. You choose.” The recipient has a defined period to decide whether to buy or sell. As with the Russian roulette, the mechanism incentivises fair prices because the proposer does not know which position they will end up in.
Both mechanisms assume that both shareholders have broadly similar financial capacity to purchase. Where there is a significant financial imbalance — common in joint ventures between a large foreign parent and a minority local partner — these mechanisms can disadvantage the less well-capitalised party and should be approached with care.
Level 3: Business Mediation
When to apply: Direct negotiation is blocked. Mandatory as a prior step to litigation since Law 1/2025.
Business mediation is a structured process in which a neutral third party — the mediator — facilitates communication between the parties to help them reach their own agreement. The mediator does not decide or impose: their function is to create the conditions for the parties to arrive at their own solution.
Cost and time: Business mediation in a corporate dispute costs between €3,000 and €15,000 in mediator and institution fees, and typically resolves in two to four months. These figures are orders of magnitude below those for arbitration or litigation.
Confidentiality: Everything said in mediation is confidential. It cannot be used in subsequent court proceedings. This protection is particularly relevant when parties fear that acknowledging certain facts in negotiation will prejudice them if the process fails and they end up in litigation.
Voluntary outcome, enforceable agreement: A mediation agreement is voluntary — nobody can be compelled to accept terms they do not want. But once signed, it has the force of a contract and can be elevated to a notarial deed to be enforced as such.
Success rate: According to data from the Madrid Chamber of Commerce, commercial mediation achieves agreement in more than 70% of cases where both parties participate actively in the process. This rate increases when the parties arrive accompanied by advisers who understand the alternatives — and their costs.
Mediation is the inflection point between private resolution and judicial escalation. Using it well is, since Law 1/2025, not merely intelligent but obligatory. Learn more about the process in our business mediation section.
Level 4: Arbitration
When to apply: Mediation has failed or is not appropriate for the nature of the dispute. The parties want a binding but private resolution.
Arbitration is a quasi-judicial procedure in which an arbitrator or panel of arbitrators issues an award with the force of a final court judgment. Unlike mediation, the arbitrator does decide; unlike a judge, the process is private, confidential and considerably faster.
Precondition: Arbitration is only available if there is an arbitration clause in the shareholders’ agreement or articles of association, or if both parties agree to submit to arbitration after the dispute has arisen.
Cost and time: Corporate arbitration before a major Spanish institution costs between €10,000 and €50,000+ depending on the amount in dispute, and resolves in six to twelve months. More expensive and slower than mediation, but significantly cheaper and faster than litigation.
Recognised Spanish arbitration institutions:
- TAB (Tribunal Arbitral de Barcelona): specialised in commercial and corporate disputes
- CIMA (Corte Civil y Mercantil de Arbitraje): arbitrators specialising in commercial law
- Corte Española de Arbitraje (CEA): attached to the Superior Council of Chambers of Commerce
- ICC (International Chamber of Commerce): the natural choice for disputes with an international element — proceedings can be conducted in English and awards are enforceable in 170+ countries under the New York Convention
For international joint ventures and cross-border shareholders, ICC arbitration deserves particular attention. The ability to conduct proceedings in English, with an international panel, under rules that produce globally enforceable awards, typically outweighs the higher cost compared to domestic institutions.
The arbitral award is enforceable as a final court judgment and can only be challenged on very limited grounds (violation of public policy, denial of due process, lack of jurisdiction). There is no ordinary second instance.
Level 5: Judicial Dissolution
When to apply: All prior options have failed. There is a structural and irreversible corporate deadlock.
Judicial dissolution is the last resort. It is the formal acknowledgement that the company, as currently constituted, cannot function. Its activation destroys the corporate vehicle, though not necessarily the underlying business (which one of the shareholders may acquire in the liquidation).
Legal basis: Article 363.1.d of the Spanish Companies Act (Ley de Sociedades de Capital, LSC) establishes as a ground for dissolution “the paralysis of the company’s governing bodies in a manner that prevents their functioning.” Any shareholder — even a minority one — may apply for judicial dissolution by demonstrating that the deadlock prevents normal business operation.
Process: The shareholder applying for dissolution files the petition before the competent Commercial Court (Juzgado de lo Mercantil). The court summons the shareholders, undertakes the necessary proceedings, and if satisfied that the statutory ground exists, orders dissolution. From that point, the company enters liquidation: assets are realised, debts are paid, and the surplus is distributed among shareholders in proportion to their holdings.
Consequences: Liquidation destroys going-concern value. A business worth €5 million as an active enterprise may generate only €1.5 million in liquidation, because intangible assets — client portfolio, contracts, know-how, brand — have limited realisable value under forced sale conditions. Judicial dissolution is, systematically, the worst economic outcome for all shareholders.
Before reaching this point, the law requires a mediation attempt. If mediation fails and the deadlock is genuine, dissolution may be unavoidable. See the requirements and process in our company dissolution section.
Exit Valuation: the Central Knot
Regardless of the resolution mechanism chosen, all corporate disputes involving the exit of a shareholder converge on the same question: what are their shares worth?
This question receives very different answers depending on who is asking it and in what interest. The departing shareholder tends to maximise the value; the buying shareholder, to minimise it. Without an objective basis, the negotiation is a positional dispute that rarely concludes without litigation.
The Legal Framework: Valor Razonable (Fair Value)
Article 353 of the Spanish Companies Act establishes that, in cases of shareholder separation on statutory grounds, the price of the shares is fixed at their valor razonable — a term best translated as “fair value.” The fair value is not the book value (typically lower) nor the price a third-party buyer would pay in the open market (which would include control or liquidity discounts). It is a technical concept that expert witnesses debate at length.
In practice, fair value is determined using recognised valuation methodologies:
- Discounted cash flow (DCF): the most common approach for businesses with predictable cash flows
- Market multiples (EV/EBITDA, EV/Revenue): useful when sector comparables exist
- Adjusted net asset value: for asset-heavy businesses
- Intangible asset valuation: for businesses with significant brands, patents or key contracts
Minority and Illiquidity Discounts
If the departing shareholder is a minority holder, the valuer may apply two discounts that reduce the final price:
Minority discount: Reflects the minority shareholder’s lack of control over business decisions. Typically 15-25% of the proportional value.
Illiquidity discount: Shares in a Spanish private limited company (SL or sociedad limitada) cannot be freely traded on an organised market. The discount reflects the difficulty of finding an external buyer. Typically 10-20%.
The application or non-application of these discounts is one of the most contentious points in corporate valuations. Spanish courts have no uniform approach to whether the “fair value” of art. 353 LSC includes or excludes them. For international shareholders accustomed to the precision of English or US M&A practice, this ambiguity can be frustrating — it means the outcome of a contested exit valuation is genuinely uncertain until determined by an independent expert or a court.
For foreign shareholders in a Spanish joint venture or subsidiary, this point has particular significance: minority discounts can mean that a 30% shareholding that appears to be worth €6 million on a proportional basis may be valued at €4.2-5.1 million in practice. Understanding this before entering a joint venture, and addressing it explicitly in the shareholders’ agreement, is important advance planning.
The Practical Solution: an Agreed Independent Valuer
The best way to neutralise the price controversy is to designate an independent valuer whom both parties accept before they know the outcome. The process is straightforward:
- Both parties propose candidates (auditors, investment banks, specialist firms)
- A neutral candidate is agreed, or one is designated through an institution (the Companies Registry can appoint an auditor at the request of either party)
- The valuer receives a clearly defined mandate and works independently
- The report is delivered to both parties simultaneously
- The parties commit to accepting the outcome as the basis for negotiation — not necessarily as the final price, but as the objective starting point
This process substantially reduces the conflict space and tends to unlock negotiations that appeared impossible.
Explore our valuation methodology.
Tax on Exit: What Nobody Explains at the Start
The resolution of a shareholder dispute has tax consequences that must be planned before the agreement is signed, not after. A poorly structured agreement can generate an unexpected tax liability that destroys the value of the transaction for the departing shareholder.
Sale of Shares
The sale of shares in a Spanish private company is taxed as a capital gain within the IRPF savings base. The applicable rates for 2026 are:
| Savings base | Marginal rate |
|---|---|
| Up to €6,000 | 19% |
| €6,000 – €50,000 | 21% |
| €50,000 – €200,000 | 23% |
| €200,000 – €300,000 | 27% |
| Over €300,000 | 28% |
The gain is calculated as the difference between the sale price and the original acquisition cost of the shares. If a founding shareholder established the company with €3,000 and sells their stake for €1.5 million, the gain is €1,497,000 and the marginal rate applicable is approximately 28%.
Important for non-residents: If the departing shareholder is not a Spanish tax resident, they are subject to the Non-Resident Income Tax (Impuesto sobre la Renta de No Residentes, IRNR) rather than IRPF. Under the general regime, capital gains are taxed at 19% for EU/EEA residents and 19% for non-EU residents (the rate was equalised in 2021). However, applicable double tax treaties may reduce or eliminate this liability — the Spain-UK and Spain-US treaties, for example, generally assign taxing rights on capital gains from shares to the country of residence of the seller. This must be verified treaty by treaty for each jurisdiction.
Separation with Capital Reduction
When the shareholder’s exit is structured as a statutory separation and the company redeems its own shares (capital reduction), the tax treatment is different and more complex. Part of the consideration may be reclassified as a return on investment (dividend equivalent) rather than a capital gain, with implications for withholding tax and economic double taxation relief. This is not an area for improvisation.
Forced Dividends as a Separation Mechanism
If the ground for separation is failure to distribute dividends for three consecutive financial years (art. 348 bis LSC), and the company ultimately distributes dividends to avoid the right of separation being exercised, those dividends are subject to 19% withholding tax as returns on investment.
Family Transfers in Succession Disputes
In the context of succession conflicts, the gift of shares between direct family members may benefit from the reductions and exemptions available under Spanish inheritance and gift tax (Impuesto sobre Sucesiones y Donaciones), which vary significantly by autonomous community. In some communities — Madrid, Andalucía — the exemption for transfers between parents and children of qualifying family businesses can reach 99% of the taxable amount. Qualifying conditions include the business having an exemption under the Wealth Tax and the transferor exercising director functions with remuneration that represents their primary source of income.
Tax planning for an exit is as important as legal planning. Both must be worked on in a coordinated manner.
Case Study: Valuation in Dispute, Agreement in 8 Weeks
A technology company with €18 million in annual revenue had three founding shareholders with equal stakes (33.33% each). After eight years together, one of them wanted to exit. The reasons were mixed: a parallel personal project requiring his full attention, and a growing disagreement about the pace of growth the company should pursue.
The problem was not the exit itself — the other two shareholders were willing to buy. The problem was the price. The departing shareholder valued his stake at €9 million (valuing the company at €27 million). The buying shareholders offered €5.3 million (valuing it at €16 million). The gap was €3.7 million and neither side could bridge it without feeling they were conceding too much.
The shareholders’ agreement contained an independent valuation clause for separation cases. BMC was appointed as the independent valuer by agreement of all three parties.
The valuation process took eight weeks. We worked with five years of audited accounts, a three-year business plan and a comparable multiples analysis of similar businesses in the sector (Spanish B2B SaaS, with an EV/Revenue range of 2.5x-4.2x and EV/EBITDA range of 12x-18x).
The final valuation delivered was €22 million for 100% of the company, placing the departing shareholder’s stake at €7.33 million before discounts. Applying a modest illiquidity discount of 2% — the shareholders’ agreement contained no minority discount provision, since all three held equal positions without a differentiated control structure — the fair value settled at €7.2 million.
The buying shareholders accepted the valuation. The departing shareholder accepted it. The exit agreement was closed within two weeks of the report being delivered. No mediation. No arbitration. No litigation. The company continued its operations with two shareholders and a strengthened management team.
The decisive element was not the numerical outcome — which neither side had expected exactly — but the authority of the process: an independent report, with rigorous methodology, delivered by a party with no interest in the result.
Act Before the Dispute Exists
The best time to resolve a shareholder dispute is before one exists. A well-designed shareholders’ agreement — with exit clauses, valuation mechanisms agreed in advance and deadlock resolution rules — eliminates the majority of disputes before they can escalate.
The second best time is now. While the corporate relationship still has enough temperature to allow negotiation, before distrust hardens and positions become irreconcilable. The window between “there is tension” and “this is no longer resolvable” is shorter than most shareholders believe.
If you are in that window — or if you want to close it preventively with an updated agreement — the path starts with a conversation. Confidential, no commitment.
Explore our services in commercial law or contact us directly for a reserved initial consultation.
Do you have an active shareholder dispute or want to strengthen your shareholders’ agreement preventively? Request a confidential consultation with the BMC team.
