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Juan Font Servera

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Class Formation and Affected Perimeter in Spanish Restructuring Plans: Rules, Thresholds and Pitfalls

By Global Law Experts

– posted 42 minutes ago

Class formation restructuring plans spain has become one of the most contested and consequential topics in Spanish pre-insolvency practice, and 2026 is bringing that tension into sharper focus as courts, creditors and sponsors continue to test the boundaries of the reformed Texto Refundido de la Ley Concursal. For in-house counsel, CFOs, lenders and restructuring advisers, the way creditor classes are composed and the way the “affected perimeter” (perímetro de afectación) is scoped will often determine whether a plan is confirmed, challenged, or cross-class crammed down. This guide sets out the statutory framework, the practical tests applied in practice, voting mechanics, shareholder and equity cramdown issues, and the litigation grounds most frequently deployed against class composition.

The aim is to give you a working toolkit, checklists, a model class schedule snippet and a comparison table, so that class boundaries can be defended on both economic logic and procedural rigour.

Legal framework: Ley Concursal, EU Directive and procedural roadmap

The modern Spanish restructuring regime sits in the Texto Refundido de la Ley Concursal, approved by Royal Legislative Decree 1/2020 and substantially reformed by Law 16/2022 of 5 September to transpose the European preventive restructuring framework. Restructuring plans (planes de reestructuración) replaced the earlier refinancing-agreement architecture and introduced a structured system of creditor classes, cross-class cram-down and judicial homologation. Any serious analysis of class formation restructuring plans spain must begin with this consolidated text and the way its provisions interact with the Directive that inspired them.

Key statutory provisions

The consolidated Ley Concursal governs who may propose a plan, how affected claims are identified, how classes are formed, the majorities required within each class, and the conditions under which a dissenting class may be bound. The statute requires that classes be formed on the basis of a sufficient commonality of interest, and it sets out the protective tests, including the “best-interest-of-creditors” comparison and relative and absolute priority considerations, that a court weighs when confirming a plan. Practitioners should read the provisions on affected perimeter, class voting and homologation together rather than in isolation, because the drafting of one affects the viability of the others.

Role of the court and the commercial courts

Homologation in Spain is handled by the commercial courts (juzgados de lo mercantil), which have become the principal arena in which disputes over class composition and perimeter are resolved. The court’s role is not merely administrative: when a plan is contested, the judge examines whether classes were properly constituted, whether the perimeter was lawfully scoped, and whether statutory protections for dissenting creditors and shareholders have been respected. Judicial reasoning published through CENDOJ is increasingly important reading for anyone structuring a plan, because it reveals how abstract statutory tests are applied to concrete facts.

Timeline and stakeholders

The procedural arc of a plan typically runs from negotiation and proposal, through class definition and voting, to a request for judicial homologation and, where applicable, confirmation against dissenting classes. The Directive (EU) 2019/1023 on preventive restructuring frameworks shaped this architecture at EU level and continues to inform interpretation of the Spanish provisions. Key stakeholders include the debtor, secured and unsecured financial creditors, trade creditors, public creditors, employees, shareholders, and, where appointed, an independent expert (experto en la reestructuración) whose valuation and reports frequently become pivotal in disputes.

How creditor classes are formed, legal tests and common approaches

The composition of classes is the structural heart of any Spanish plan. Get it right and the plan has a credible path to homologation; get it wrong and you invite challenge, delay and the risk that cross-class cram-down fails. The approach to class formation restructuring plans spain rests on a core idea: creditors should be grouped together only where they share a sufficient commonality of interest, measured by the nature of their claims and the treatment they receive under the plan.

Grouping principles: homogeneity and voting logic

Spanish law requires classes to reflect a genuine community of interest. In practice this means grouping creditors whose legal rank, security position and economic exposure are comparable, and who therefore have aligned incentives when voting. As market practitioners put it, courts prioritise the economic coherence of classes; drafters should tie composition to function and to voting incentives rather than to tactical convenience. A class engineered purely to manufacture a consenting majority, rather than to reflect a real alignment of interests, is vulnerable to the accusation of abusive class formation.

Two forces pull against each other. On one hand, splitting creditors into more classes can isolate dissenters and preserve the possibility of cross-class cram-down. On the other, artificial fragmentation or gerrymandering is precisely what challengers attack. The safest structures are those where each class can be justified on objective criteria, rank, security, maturity, or the legal nature of the claim, that would be defensible before a commercial court.

Typical class categories

Most Spanish restructuring plans draw on a recognisable set of categories, which can be combined or subdivided depending on the capital structure:

Secured lenders. Creditors holding real security or privileged claims, often placed in one or more classes reflecting the value of their collateral and the extent to which that collateral covers their exposure.
Unsecured financial creditors. Bank and institutional lenders without security, frequently a pivotal class in negotiations because of their size and sophistication.
Trade creditors. Suppliers and ordinary commercial counterparties, whose continued support may be commercially essential and whose treatment often differs from that of financial creditors.
Employee claims. Labour and related claims, which enjoy statutory protections and, as a general rule, are excluded from the scope of a restructuring plan.
Public-law claims. Tax and social-security claims, which carry special statutory treatment and are subject to specific limits on how a plan may affect them.

Correctly identifying which of these categories exist and how they should be subdivided is the first analytical step in class formation restructuring plans spain. Each category has distinct voting dynamics, distinct priority, and distinct litigation exposure.

Example class schedule (model)

A workable class schedule should document, for every class, the objective criterion that justifies its boundaries. A short illustrative structure might read:

Class A, Secured financial creditors: claims secured by first-ranking mortgage or pledge, to the extent of collateral value.
Class B, Unsecured financial creditors: syndicated and bilateral bank debt without security, plus the unsecured shortfall of Class A creditors.
Class C, Trade and ordinary creditors: non-financial commercial claims not benefiting from privilege.
Class D, Subordinated claims: claims subordinated by law or contract.
Class E, Shareholders / equity: where affected, treated as a separate class.

The value of a schedule like this lies less in the labels than in the evidence file that sits behind it, valuation support, security analysis and ranking opinions that allow the drafter to defend each boundary if challenged.

Defining the affected perimeter (perímetro de afectación), tests and examples

If class composition is the structure, the affected perimeter is the gateway: it determines which claims are touched by the plan at all. The perimeter decision drives who votes, who is bound, and who retains their rights untouched. Scoping it correctly is central to class formation restructuring plans spain, because a claim’s inclusion or exclusion changes both the voting arithmetic and the fairness analysis the court will undertake.

Statutory basis for the affected perimeter

The Ley Concursal allows the plan proponent considerable flexibility in defining which claims are affected, subject to the statutory limits and protections for excluded or specially treated creditors. That flexibility is both an opportunity and a trap. Including a claim brings it within the plan’s binding effect but also gives that creditor voting rights and standing to challenge; excluding a claim preserves its rights in full but removes it from the compromise. The perimeter is therefore a deliberate strategic choice, not a mechanical exercise, and it must be justified by reference to the statutory framework rather than convenience alone.

Contracts, leases and executory obligations

Executory contracts and leases raise some of the most difficult perimeter questions. A key practical distinction is between modifying the financial claims arising under a contract and interfering with the contract’s ongoing performance. Where a counterparty has an outstanding monetary claim, that claim may be brought inside the perimeter and compromised. Where the plan seeks to alter continuing obligations, rent, supply, service terms, the analysis is more delicate, because the law protects the integrity of ongoing contractual relationships more closely than it protects crystallised monetary claims. Drafters should treat each material contract individually, identifying precisely which component is being affected and ensuring the perimeter language matches that intention.

Guarantees, securities and secured claims

Secured claims and third-party guarantees demand careful perimeter treatment. A secured creditor’s claim is typically divided into a secured portion, up to collateral value, and an unsecured shortfall, which may be treated differently and even placed in a different class. Guarantees given by third parties, particularly intra-group guarantees, raise the question of whether, and how, the plan can affect the primary obligation without releasing or impairing guarantors’ rights in a way that the statute does not permit. These are precisely the points at which perimeter and class decisions interlock, and where class formation restructuring plans spain most often generates litigation.

Contingent and future claims

Contingent, disputed and future claims present valuation and inclusion challenges. The proponent must decide whether to bring such claims inside the perimeter, fixing an estimated value for voting and distribution, or to leave them outside, with the consequent uncertainty. The chosen approach must be documented and defensible, because a creditor whose contingent claim is impaired by a disputed valuation is a natural challenger. Consistency matters: treating similar contingent claims differently without justification invites the accusation of arbitrary perimeter scoping.

Voting mechanics and thresholds per class in Spanish restructuring plans

Once classes and perimeter are settled, the plan must secure the statutory majorities. Voting mechanics are where the structural choices made earlier pay off, or unravel. Understanding how votes are counted within each class is indispensable to class formation restructuring plans spain, because the entire purpose of class design is to produce a lawful and defensible voting outcome.

Standard thresholds and counting rules

Approval operates class by class. Within each class, the required majority is calculated by reference to the value of the affected claims in that class rather than by a simple headcount of creditors. This liability-weighted approach means that a small number of large creditors can carry, or block, a class, and that the placement of a large claim into one class rather than another can be decisive. Classes of claims secured by real security are subject to reinforced majority requirements reflecting their protected position. Because the arithmetic turns on claim values, accurate quantification of each claim is essential, and disputes over the amount of a claim quickly become disputes over the voting result.

Quorum and valuation disputes

Valuation underpins almost every contested vote. Disagreements over the value of collateral, the quantum of a contingent claim, or the enterprise value of the debtor translate directly into disagreements over whether a class approved the plan and whether dissenting creditors are receiving at least what they would obtain in the alternative scenario. Proponents should anticipate these disputes and build a robust evidential record, independent valuations, security analyses and clear counting methodologies, before the vote rather than after a challenge is filed.

Independent expert and expert reports

The independent restructuring expert plays a central role where the plan involves cram-down or contested valuation, and the Ley Concursal provides for the appointment of such an expert in defined situations. Expert reports on valuation and on the treatment of classes carry significant weight before the commercial court, and a well-reasoned, methodologically sound report can be the difference between confirmation and rejection. Conversely, a weak or contradicted report becomes an obvious target for challengers. Engaging a credible expert early, and ensuring the valuation methodology is transparent and internally consistent, is one of the most effective risk-mitigation steps available in class formation restructuring plans spain.

Shareholder classes, equity cramdown and veto risks

Few features of the reformed regime have attracted more attention than the ability, in appropriate circumstances, to bind shareholders and impose equity changes over their objection. Where the debtor is insolvent or the capital structure is deeply out of the money, shareholders may find their traditional veto significantly curtailed.

When shareholders are a class

Shareholders are not grouped with creditors; where their rights are affected by the plan, they form their own class and vote separately. This separation reflects the distinct economic position of equity, which ranks behind creditors and is often out of the money in a genuine restructuring scenario. Treating shareholders as a separate affected class allows the plan to address the capital structure, through debt-for-equity swaps, share issuances or capital reductions, while preserving the integrity of the class-based voting system.

Equity cramdown legal test

The regime permits confirmation of a plan over the opposition of a dissenting shareholder class in defined circumstances, subject to statutory safeguards. The central justification is that where equity has no economic value, because the enterprise value does not reach the equity tier, shareholders should not be able to hold value-creating restructurings hostage. The court will test whether this economic condition is met, typically on the basis of valuation evidence, and whether the statutory protections for the affected class have been respected. This is where valuation becomes decisive: the entire case for equity cramdown stands or falls on the enterprise-value analysis.

Valuation and squeeze-out practicalities

In practice, imposing changes on shareholders requires careful sequencing of corporate and insolvency steps, and close attention to the rights of minority shareholders. For listed companies, the Comisión Nacional del Mercado de Valores regime adds disclosure and market-integrity obligations that must be coordinated with the restructuring timetable. Proponents should map the corporate-law mechanics, capital reductions, increases, exclusion of pre-emption rights, against the insolvency-law authority to bind the class, ensuring the two frameworks are reconciled before the plan is presented.

Mitigations to avoid veto

To reduce the risk that a shareholder class derails the plan, proponents typically invest in a defensible valuation that establishes whether equity is in or out of the money, document the statutory basis for any cramdown, and consider offering shareholders a modest participation or subscription right where that improves confirmability without undermining the economics. The objective is to remove, as far as possible, the factual and legal grounds on which a dissenting shareholder might challenge the plan, which brings us to the broader subject of litigation risk.

Contesting classes and perimeter, litigation grounds and defence tactics

No matter how carefully a plan is drafted, dissenting creditors and shareholders have standing to challenge homologation, and class composition and perimeter are among the most common battlegrounds. A disciplined approach to class formation restructuring plans spain treats every structuring decision as something that may one day have to be defended before a commercial court.

Common plaintiff arguments

Challengers typically deploy a recognisable catalogue of arguments:

Procedural defects. Alleged failures in notice, information provision, or the mechanics of the vote.
Lack of homogeneity. The contention that a class groups creditors without a genuine commonality of interest, or conversely that it artificially fragments a natural class to manufacture majorities.
Valuation errors. Attacks on the enterprise value, collateral value or claim quantification underpinning the vote and the cramdown.
Breach of creditor protections. The argument that a dissenting creditor receives less than it would in the relevant alternative, or that priority rules have been violated.
Improper perimeter. The claim that certain creditors were wrongly included or excluded, distorting the voting arithmetic or the fairness analysis.

Court response and remedies

The commercial courts examine these arguments against the statutory framework and the evidence. Where a challenge succeeds, the court may decline to confirm the plan, or confirm it with respect to some classes but not others, depending on the defect identified. Judicial reasoning available through CENDOJ increasingly shows courts scrutinising the economic logic of class boundaries and the robustness of the valuation evidence. A plan that rests on thin or contradictory valuation support, or on class boundaries that cannot be objectively justified, is materially more exposed.

Practical defence and drafting safeguards

The best defence is built into the plan from the outset. That means documenting the objective criterion behind each class, assembling a credible valuation record, ensuring the perimeter is scoped consistently and defensibly, and respecting the statutory protections for dissenting creditors and shareholders. The practical lesson of recent practice is that class formation restructuring plans spain rewards those who prepare the evidential file as if a challenge were certain, because, in contested cases, it very often is.

Comparison table: creditor classes, shareholder class and unaffected creditors

Class type	Who sits in the class	Voting threshold basis	Typical cramdown exposure	Litigation risk	Drafting tip
Secured creditors	Creditors with real security, up to collateral value	Reinforced, value-weighted majority within class	Lower where collateral covers claim; higher on shortfall	Valuation and collateral-coverage disputes	Separate secured portion from unsecured shortfall with clear valuation
Unsecured financial creditors	Banks and institutions without security	Value-weighted majority within class	Moderate to high; often the pivotal crammed class	Homogeneity and fragmentation challenges	Justify boundaries on rank and economic alignment, not tactics
Trade creditors	Suppliers and ordinary commercial counterparties	Value-weighted majority within class	Variable; may be preserved for commercial reasons	Perimeter inclusion/exclusion disputes	Document why trade claims are inside or outside the perimeter
Employee claims	Labour and related protected claims	Generally excluded from the plan	Generally low; as a rule excluded from affectation	Challenges to improper impairment	Respect statutory protections; keep outside the perimeter
Shareholder class	Equity holders whose rights are affected	Separate class vote	High where equity is out of the money	Valuation and minority-protection challenges	Support cramdown with robust enterprise-value evidence

Practical checklist and drafting template for class formation restructuring plans spain

The following quick-reference checklist captures the structuring and evidential steps that most reduce challenge risk. It is designed to be worked through methodically before the plan is presented for homologation.

Confirm the statutory basis for proposing a plan and identify all categories of affected claim.
Map every material claim by legal rank, security position, maturity and nature.
Decide the affected perimeter deliberately, documenting why each claim is inside or outside.
Treat executory contracts and leases individually, distinguishing monetary claims from ongoing obligations.
Split secured claims into secured and unsecured portions by collateral value.
Address third-party and intra-group guarantees expressly within the perimeter language.
Decide the treatment of contingent, disputed and future claims consistently.
Form classes on objective, defensible criteria reflecting genuine commonality of interest.
Avoid artificial fragmentation or gerrymandering of classes.
Prepare a class schedule with a documented justification for each class boundary.
Obtain a robust, methodologically transparent independent valuation.
Quantify every claim accurately for value-weighted voting.
Confirm the applicable majority within each class, including reinforced requirements for classes secured by real security.
Treat shareholders as a separate class where their rights are affected.
Where equity cramdown is sought, establish and document that equity is out of the money.
Coordinate corporate-law steps with insolvency authority, and with CNMV obligations for listed entities.
Respect the best-interest-of-creditors and priority protections for dissenting classes.
Assemble the full evidential file as though a challenge is certain.
Review recent commercial-court reasoning for emerging interpretive trends.
Build a litigation-mitigation plan addressing the most likely grounds of challenge.

A short model class schedule snippet, Class A secured financial creditors to collateral value; Class B unsecured financial creditors and secured shortfall; Class C trade creditors; Class D subordinated claims; Class E affected shareholders, should always be accompanied by the underlying ranking, security and valuation evidence that justifies each boundary.

Conclusion and next steps

Class formation restructuring plans spain is not a mechanical drafting exercise but a strategic discipline that blends statutory analysis, economic logic, valuation evidence and litigation foresight. In 2026, with commercial courts actively scrutinising class boundaries and perimeter decisions, the plans most likely to survive challenge are those whose structure can be defended on objective criteria and supported by a credible evidential record. The practical next steps are clear: map the capital structure, scope the perimeter deliberately, form classes on genuine commonality of interest, secure robust valuations, respect the protections owed to dissenting creditors and shareholders, and prepare as though every structuring choice will be tested in court.

Readers facing a live restructuring should treat this guide as a starting framework and obtain tailored advice before finalising any plan. For broader context, see the OECD’s comparative work on insolvency and restructuring frameworks and the professional guidance published by the Consejo General de la Abogacía Española.

Need Legal Advice?

This article was produced by Global Law Experts. For specialist advice on this topic, contact Juan Font Servera at FONT MORA SAINZ DE BARANDA, a member of the Global Law Experts network.

Sources

FAQs

How are creditor classes determined in a Spanish restructuring plan?

Classes are formed by grouping creditors who share a genuine commonality of interest, measured by legal rank, security position and economic alignment. The Ley Concursal requires objective, defensible boundaries, and courts scrutinise whether classes reflect real economic coherence rather than tactical convenience.

What is the affected perimeter in class formation restructuring plans spain?

The affected perimeter (perímetro de afectación) is the set of claims the plan touches and binds. Including a claim gives the creditor voting rights and standing to challenge; excluding it preserves the creditor’s rights in full. Scoping the perimeter is a deliberate strategic choice under the Ley Concursal.

Can shareholders be in the same class as creditors?

No. Where their rights are affected, shareholders form their own separate class and vote separately, reflecting equity’s distinct and subordinate economic position. In defined circumstances, a dissenting shareholder class may be crammed down where equity is out of the money, subject to statutory safeguards.

What voting thresholds are needed for plan approval?

Approval operates class by class, with majorities calculated by the value of affected claims rather than by headcount. Classes secured by real security face reinforced requirements. Accurate claim quantification is essential, since the result turns on claim values rather than the number of creditors voting.

How can a creditor challenge class composition or the perimeter?

Common grounds include procedural defects, lack of homogeneity, valuation errors, breach of creditor protections, and improper perimeter scoping. The commercial court may decline to confirm the plan or confirm it only partially. A strong evidential file and defensible class boundaries are the best protection.