State Aid Under Articles 107–109 TFEU: Compatibility, Notification, and Recovery

State Aid Under Articles 107–109 TFEU: Compatibility, Notification, and Recovery

Introduction

State aid control is one of the central mechanisms through which the European Union protects competition within the internal market. It addresses a particular risk that arises when governments intervene in economic activity: public authorities may give selected businesses financial advantages that competitors cannot obtain under ordinary market conditions. Such intervention may preserve employment, support innovation, protect essential services, accelerate regional development, or respond to an economic crisis. It may also distort competition, encourage inefficient businesses to remain in the market, and create an uneven economic environment between Member States.

The European Union does not prohibit all public support to businesses. Instead, it establishes a system under which State aid is generally prohibited but may be permitted where it serves recognised public objectives and satisfies the applicable conditions of compatibility. The legal framework is principally contained in Articles 107, 108 and 109 of the Treaty on the Functioning of the European Union (TFEU).

Article 107 defines State aid and establishes the principal categories of aid that may be compatible with the internal market. Article 108 creates the system of supervision, notification and enforcement, assigning the European Commission a central role in assessing proposed aid measures. Article 109 empowers the Council to adopt regulations implementing the State aid framework, including rules allowing certain categories of aid to be exempted from prior notification.

The system reflects a fundamental distinction between the existence of State aid and its compatibility with the internal market. A measure may satisfy every element of the definition in Article 107(1) and therefore constitute State aid, while nevertheless being capable of authorisation under Article 107(2) or Article 107(3). Conversely, a government measure may pursue a legitimate public policy objective but remain unlawful if it is implemented without satisfying the applicable notification or exemption requirements.

State aid control is therefore both substantive and procedural. It examines the economic characteristics of public intervention, the public interest it seeks to advance, the likely effects on competition, and the legal procedures through which the measure is adopted and implemented.

1. Legal Foundations of EU State Aid Control

The principal legal foundation is Article 107 TFEU. Its first paragraph provides that, unless otherwise provided in the Treaties, aid granted by a Member State or through State resources in any form whatsoever which distorts or threatens to distort competition by favouring certain undertakings or the production of certain goods is incompatible with the internal market, insofar as it affects trade between Member States.

The provision establishes a general prohibition rather than an absolute ban. The Treaty itself identifies categories of aid that are compatible or may be declared compatible. The Commission applies these provisions through decisions, regulations, guidelines and frameworks developed within the limits of its Treaty responsibilities.

Article 108 TFEU establishes the institutional and procedural structure. Under Article 108(1), the Commission, in cooperation with Member States, keeps existing aid systems under constant review. Under Article 108(2), it may investigate aid that appears incompatible with the internal market and, where appropriate, require the Member State to abolish or alter it. Article 108(3) imposes the notification obligation and the standstill requirement for new aid.

Article 109 TFEU authorises the Council, acting on a proposal from the Commission and after consulting the European Parliament, to make appropriate regulations for the application of Articles 107 and 108. This provision supports the development of block exemption rules and other instruments that simplify the administration of State aid control.

The main procedural instrument is Council Regulation (EU) 2015/1589, which lays down detailed rules for applying Article 108 TFEU. It governs preliminary examinations, formal investigations, complaints, recovery, limitation periods and the treatment of existing and unlawful aid.

Another important instrument is Council Regulation (EU) 2015/1588, known as the Enabling Regulation. It empowers the Commission to adopt regulations exempting specified categories of State aid from the notification requirement.

The institutional division of responsibility is important. The Commission has exclusive responsibility for assessing the compatibility of State aid with the internal market, subject to judicial review by the EU Courts. National authorities remain responsible for designing and granting aid measures, complying with notification and exemption requirements, and implementing Commission decisions. National courts enforce the procedural rights arising under Article 108(3), including the standstill obligation.

The framework is closely connected with EU competition law but addresses a different source of competitive distortion. Articles 101 and 102 TFEU regulate conduct by undertakings, whereas State aid law examines advantages conferred through public intervention. Both seek to preserve competitive conditions, but they operate through different legal tests and enforcement mechanisms.

2. The Definition of State Aid Under Article 107(1) TFEU

A measure constitutes State aid only where all the conditions in Article 107(1) are satisfied. The analysis is cumulative. If one of the necessary elements is absent, the measure does not constitute State aid under that provision, although other rules of EU law may remain relevant.

The principal elements are:

1. The beneficiary must be an undertaking engaged in economic activity.
2. The measure must be imputable to the State and involve State resources.
3. It must confer an economic advantage.
4. The advantage must be selective.
5. It must distort or threaten to distort competition and affect trade between Member States.

These conditions are interpreted according to the economic substance of the measure rather than its formal classification under national law.

2.1. The concept of an undertaking

The concept of an undertaking is functional and independent of legal form. An entity is an undertaking where it carries out an economic activity, meaning that it offers goods or services on a market.

A company, public corporation, association, foundation or other organisation may therefore qualify as an undertaking. Its ownership structure, profit-making status and method of financing are not decisive.

An organisation may perform both economic and non-economic activities. In such cases, the relevant activities must be examined separately. Public funding for the exercise of public authority, such as certain regulatory or policing functions, will not ordinarily constitute aid to an undertaking. By contrast, the provision of services in competition with private operators may be economic activity even where the provider is publicly owned or operates without a profit motive.

The same distinction is relevant to education, healthcare, transport, culture and social services. Their classification depends on the organisation of the activity, its financing, the applicable national system and whether services are supplied on a market.

The economic character of the activity must be established before the remaining elements of Article 107(1) can be assessed.

2.2. State resources and imputability to the State

The measure must be attributable to the State and involve State resources. These are related but distinct requirements.

State resources include funds belonging to central government, regional authorities, municipalities and other public bodies. They may also include resources controlled by public undertakings where the State can exercise a sufficiently influential role over their allocation.

The concept is not limited to direct grants from a government budget. State resources may be involved through tax exemptions, subsidised loans, guarantees, preferential access to public assets, capital injections, debt forgiveness, or the provision of goods and services on favourable terms.

A measure may also involve an indirect transfer of State resources. For example, where legislation requires a publicly controlled fund to finance selected businesses under conditions determined by public authorities, the resources may be attributable to the State even though the money does not pass directly through the Treasury.

Imputability requires a separate examination of whether the decision to grant the advantage can be attributed to public authorities. The mere fact that a public undertaking grants support does not automatically establish that its decision is imputable to the State.

In France v Commission (Stardust Marine), Case C-482/99, the Court of Justice explained that imputability may be established through a combination of indicators, including the undertaking’s integration into public administration, the nature of its activities, its legal status, the intensity of public supervision and the circumstances surrounding the adoption of the measure.

The distinction matters where a government-owned company acts commercially. Public ownership alone does not mean that every commercial decision taken by that company constitutes State aid. The analysis must establish both the involvement of State resources and the attribution of the relevant decision to public authorities.

2.3. Economic advantage

An advantage exists where an undertaking receives an economic benefit that it would not have obtained under normal market conditions.

The assessment is comparative. The Commission examines the beneficiary’s financial position after the intervention and compares it with the position it would probably have occupied without the measure.

A direct grant ordinarily confers an advantage because the beneficiary receives resources without providing an equivalent market-based consideration. However, the advantage may take less obvious forms.

Examples include:

• Loans carrying interest below market rates.
• Public guarantees that reduce borrowing costs.
• Tax exemptions or selective reductions in tax liabilities.
• Public investment on terms that a private investor would not accept.
• Debt restructuring more favourable than a private creditor would agree to.
• Sale or lease of public property below market value.
• Purchase of goods or services by public authorities at prices exceeding market conditions.

The economic advantage must be assessed independently of the government’s stated objective. A measure does not cease to confer an advantage merely because it was intended to preserve employment, promote regional development or support a socially important undertaking.

2.4. The market economy operator principle

A central instrument for determining whether an economic advantage exists is the market economy operator principle.

The principle asks whether a private operator acting under normal market conditions would have entered into a comparable transaction. Depending on the circumstances, the relevant comparison may be that of a private investor, creditor, seller or purchaser.

For example, if a government invests capital in a company, the question is whether a private investor in a comparable position, taking account of the available information and commercial risks at the time of the decision, would have made a similar investment.

The analysis must be based on information available when the intervention was decided. A government cannot justify an economically irrational investment merely by pointing to later improvements in the company’s performance.

Likewise, where a public authority restructures debt, the relevant question is whether a private creditor would have accepted comparable terms rather than pursuing recovery through ordinary commercial procedures.

The principle prevents public authorities from disguising subsidies as commercial transactions. At the same time, it recognises that public bodies may legitimately participate in markets and invest in businesses on commercial terms.

2.5. Selectivity

State aid must favour certain undertakings or the production of certain goods. This is the requirement of selectivity.

A measure that applies generally to all businesses in a Member State under objective and non-discriminatory conditions will not ordinarily be selective. General economic measures, such as broad tax reforms or economy-wide reductions in administrative burdens, are therefore normally outside Article 107(1).

By contrast, a measure may be selective where it benefits:

• A particular company or group of companies.
• A defined industrial or commercial sector.
• Businesses operating in a specific geographical area.
• Undertakings satisfying special conditions unavailable to comparable competitors.
• A limited group of beneficiaries selected through discretionary decisions.

Selectivity may be material or regional. Regional selectivity arises where an advantage applies only to undertakings located in a particular territory. The analysis can be complex where a regional authority has autonomous tax-setting powers. The relevant reference framework and the authority’s institutional, procedural and economic autonomy may determine whether the measure is selective.

Tax measures require particular care. The Commission and the EU Courts examine whether a tax ruling, exemption or special regime departs from the ordinary national tax system in a manner that favours particular undertakings. The fact that a measure takes the form of a tax decision does not exclude it from State aid control.

2.6. Distortion of competition and effect on trade

The final elements are that the measure must distort or threaten to distort competition and affect trade between Member States.

The Commission does not have to prove that actual competitive harm has already occurred. A potential distortion may be sufficient where the measure strengthens the beneficiary’s position in relation to competitors.

Similarly, the effect on trade does not require proof that the beneficiary itself exports goods or services. Support to a business operating in a local market may affect trade where undertakings from other Member States could compete in that market or where the measure strengthens the beneficiary’s position in a market open to cross-border activity.

The assessment is economic and context-dependent. The size of the beneficiary, the nature of the market, the amount and duration of the support, and the likelihood of cross-border competition may all be relevant.

The Commission’s State aid framework therefore reaches a broad range of public interventions. Nevertheless, the requirement of an effect on trade remains a legal condition, not an automatic consequence of every transfer of public money to a business.

3. Measures That Do Not Constitute State Aid

Not every form of public support falls within Article 107(1). The distinction between a measure that is not State aid and a measure that constitutes compatible State aid is fundamental.

A measure may fall outside Article 107(1) because it does not involve State resources, does not confer an advantage, is not selective, or does not affect competition and trade between Member States.

General measures available to all undertakings under objective conditions are normally not selective. Public investment made on market terms may also fall outside the definition because no economic advantage is conferred.

Public compensation for services of general economic interest requires a more detailed examination.

In Altmark Trans, Case C-280/00, the Court established four conditions under which compensation for the performance of public service obligations does not constitute State aid:

1. The recipient undertaking must actually be entrusted with clearly defined public service obligations.
2. The parameters for calculating compensation must be established in advance in an objective and transparent manner.
3. Compensation must not exceed what is necessary to cover the costs of performing the obligations, taking account of relevant revenue and a reasonable profit.
4. Where the undertaking is not selected through a public procurement procedure capable of identifying the least-cost provider, the compensation must be determined by reference to the costs of a typical, well-run undertaking adequately equipped to provide the service.

Where all four conditions are satisfied, the compensation does not constitute State aid. If one or more conditions are not satisfied, the measure may still be compatible aid, but it must be assessed under the applicable State aid rules.

This distinction is particularly important in public transport, healthcare, postal services, energy supply and other sectors where governments impose obligations to ensure the availability of services that the market might not provide on acceptable terms.

4. Compatibility Under Article 107(2) TFEU

Article 107(2) identifies categories of aid that are compatible with the internal market. Where the relevant legal conditions are fulfilled, compatibility follows from the Treaty provision.

The first category concerns aid having a social character, granted to individual consumers, provided that it is granted without discrimination related to the origin of the products concerned.

This category may cover support designed to help consumers obtain essential goods or services. Its central characteristic is that the advantage is directed to consumers rather than selectively favouring particular producers.

The second category concerns aid to make good damage caused by natural disasters or exceptional occurrences. The provision recognises that extraordinary events may justify public compensation for losses that businesses could not reasonably prevent.

The compensation must correspond to the damage suffered. Overcompensation would create an unjustified advantage and could itself constitute incompatible aid.

The third category concerns aid granted to the economy of certain areas of the Federal Republic of Germany affected by the division of Germany, insofar as it is required to compensate for the economic disadvantages caused by that division. This is a specific historical provision of the Treaty.

Article 107(2) therefore provides defined legal grounds for compatibility. It does not give governments unrestricted discretion to subsidise businesses whenever a social or economic objective can be identified.

5. Compatibility Under Article 107(3) TFEU

Article 107(3) identifies categories of aid that may be considered compatible with the internal market. Unlike Article 107(2), the provision gives the Commission a discretionary assessment within the limits established by the Treaty and applicable legal instruments.

5.1. Regional development

Article 107(3)(a) allows aid to promote the economic development of areas where the standard of living is abnormally low or where there is serious underemployment, as well as regions referred to in Article 349 TFEU, taking account of their structural, economic and social situation.

Regional aid is intended to reduce economic disparities and encourage investment in disadvantaged territories. It may support new productive facilities, the expansion of existing businesses, infrastructure and employment-generating projects.

The Commission assesses regional aid against approved regional aid maps and applicable intensity limits. The amount of support must be proportionate to the regional disadvantage and must not create unnecessary competitive distortions.

5.2. Important projects of common European interest

Article 107(3)(b) permits aid to promote the execution of an important project of common European interest or to remedy a serious disturbance in the economy of a Member State.

Projects of common European interest may involve major cross-border investments in areas such as semiconductor manufacturing, batteries, hydrogen, cloud infrastructure, health technologies and other strategically significant sectors.

The legal justification requires more than the commercial importance of an individual project. The project must have a demonstrable European dimension and contribute to objectives that cannot be adequately achieved through ordinary market activity alone.

The Commission examines the project’s contribution to common European objectives, its scale, its cross-border effects, the necessity of public support and the risk of undue distortion.

5.3. Development of economic activities or areas

Article 107(3)(c) allows aid to facilitate the development of certain economic activities or of certain economic areas, provided that it does not adversely affect trading conditions to an extent contrary to the common interest.

This is one of the most frequently used legal bases for State aid approval. It supports a broad range of policy objectives, including research and development, environmental protection, energy transition, innovation, employment, training, regional investment and infrastructure.

The Commission generally applies a balancing assessment. It considers the positive contribution of the aid to the development of the relevant activity and compares it with the negative effects on competition and trade.

A central issue is the incentive effect. Public support should change the beneficiary’s behaviour by enabling an activity, investment or project that would not otherwise occur, or would occur on a materially different scale, timetable or scope.

Aid that merely reimburses expenditure the beneficiary would have incurred in any event may lack the necessary incentive effect.

5.4. Culture and heritage conservation

Article 107(3)(d) permits aid to promote culture and heritage conservation where it does not affect trading conditions and competition in the Union to an extent contrary to the common interest.

The provision recognises that cultural activities and heritage protection may generate social value that is not fully reflected in commercial returns.

Support may cover museums, cultural institutions, artistic production, heritage restoration, archives, theatres, cultural infrastructure and related activities.

The Commission must nevertheless consider whether the aid is proportionate and whether its economic effects on competing cultural or commercial operators are limited to an acceptable level.

5.5. Other categories determined by the Council

Article 107(3)(e) allows the Council, acting on a proposal from the Commission, to specify other categories of aid that may be considered compatible with the internal market.

This provision provides flexibility for the development of the State aid framework as economic and social priorities change.

6. The Commission’s Compatibility Assessment

The Commission does not approve aid merely because a Member State identifies a legitimate policy objective. It examines whether the measure is necessary, appropriate and proportionate, and whether its positive effects outweigh its negative impact on competition.

The assessment is developed through Treaty provisions, regulations, guidelines and frameworks.

Although the precise criteria differ according to the type of aid, several principles recur.

6.1. Common interest objective

The Member State must identify the public policy objective pursued by the measure. This may include correcting a market failure, promoting regional development, supporting research, protecting the environment, ensuring access to essential services or addressing a serious economic disturbance.

The objective must be sufficiently specific to permit an assessment of the measure’s expected benefits.

6.2. Necessity and appropriateness

The Commission considers whether State intervention is necessary and whether the proposed instrument is appropriate to achieve the stated objective.

For example, a direct grant may be unnecessary where a market-based loan or guarantee would achieve the same result with less distortion. Equally, public support may be justified where private financing is unavailable because of identifiable market failures or exceptional risks.

6.3. Incentive effect

Aid should induce additional economic activity or investment. The Commission examines whether the beneficiary would have undertaken the relevant project without public support.

For certain categories of aid, applications must be submitted before work on the project begins. This requirement helps demonstrate that the public contribution influenced the decision to invest.

The precise rules depend on the relevant exemption regulation or compatibility framework.

6.4. Proportionality

The amount of aid must be limited to what is necessary to achieve the objective. Excessive compensation or financing may strengthen the beneficiary beyond what is required and distort competition unnecessarily.

Aid intensity limits, eligible cost rules, funding-gap calculations and maximum aid amounts are commonly used to establish proportionality.

6.5. Limitation of negative effects

The Commission examines whether the measure is likely to displace competitors, create overcapacity, encourage subsidy competition between Member States or undermine investment incentives in other parts of the internal market.

The assessment is not limited to the immediate beneficiary. It considers the wider competitive consequences of the intervention.

7. Notification and the Standstill Obligation Under Article 108(3)

The notification procedure is one of the defining features of EU State aid control.

Article 108(3) requires Member States to inform the Commission of plans to grant or alter aid in sufficient time to allow examination. The Commission must be notified before the measure is implemented, unless an applicable exemption removes the notification requirement.

The Member State must also refrain from putting the aid into effect until the Commission has taken a final decision authorising it or the measure otherwise falls within an applicable legal exemption.

This is known as the standstill obligation.

The obligation is intended to prevent public authorities from creating an irreversible competitive advantage before the Commission has examined the measure.

7.1. What must be notified?

The notification obligation generally covers new aid and alterations to existing aid that constitute new aid.

A Member State cannot avoid notification simply by describing a measure as a grant, tax adjustment, public investment or administrative arrangement. The legal and economic substance of the intervention determines whether it falls within the State aid rules.

Notification must contain sufficient information for the Commission to assess the measure. It will generally include the legal basis, objectives, beneficiaries, budget, duration, eligible costs, aid intensity, funding arrangements and the relevant compatibility justification.

The Commission may request additional information where the notification is incomplete.

7.2. Preliminary examination

Under Article 4 of Regulation 2015/1589, the Commission conducts a preliminary examination of notified aid.

It may conclude that:

• The measure does not constitute State aid.
• The measure constitutes aid but raises no objections because it is compatible with the internal market.
• The measure raises serious doubts and requires a formal investigation.

The preliminary examination is intended to determine whether the notified measure can be approved without a more extensive investigation.

7.3. Formal investigation procedure

Where the Commission has serious doubts about compatibility, it must initiate the formal investigation procedure under Article 108(2) TFEU.

The Commission publishes its decision to open the investigation and invites the Member State and interested parties to submit observations.

Interested parties may include competitors, trade associations, customers, suppliers and other entities whose interests may be affected by the aid.

The formal investigation enables the Commission to examine the measure in greater depth, including its economic effects, the arguments of the Member State and the observations of interested parties.

At the end of the procedure, the Commission may adopt a positive decision, a conditional decision or a negative decision.

A positive decision authorises the aid. A conditional decision makes authorisation subject to compliance with specified conditions. A negative decision establishes that the aid is incompatible and may require recovery if it has already been granted.

The Commission’s procedural framework is set out in Regulation 2015/1589 and its State aid procedures guidance.

8. Block Exemptions and the General Block Exemption Regulation

Not every State aid measure must be individually notified to the Commission.

Article 109 TFEU and the Enabling Regulation allow the Commission to establish categories of aid that are exempt from prior notification where specified conditions are fulfilled.

The most important instrument is the General Block Exemption Regulation (GBER), Commission Regulation (EU) No 651/2014, as amended.

The GBER covers a broad range of categories, including:

• Regional investment and operating aid.
• Aid to small and medium-sized enterprises.
• Research, development and innovation.
• Environmental protection and energy.
• Training and employment.
• Culture and heritage conservation.
• Sport and multifunctional recreational infrastructure.
• Local infrastructure.
• Broadband infrastructure.
• Certain categories of aid following natural disasters.

The regulation establishes detailed requirements for each category. These may include maximum aid intensities, eligible costs, thresholds for individual notifications, transparency obligations, incentive-effect conditions and rules on cumulation.

The exemption is conditional. A Member State cannot rely on the GBER simply because a measure concerns research, environmental protection or regional development. The measure must satisfy every applicable requirement.

If the conditions are not met, the aid may be unlawful because it was implemented without the required notification.

The Commission has been reviewing the GBER framework. In 2026, it conducted a consultation on a draft new regulation intended to simplify and update the existing rules. The consultation closed on 23 April 2026. A draft under consultation must not be confused with an adopted regulation: the existing GBER remains the relevant legal framework unless and until a replacement or amendment is formally adopted and becomes applicable.

Other block exemption instruments apply to particular sectors. These include the Agricultural Block Exemption Regulation, the Fisheries Block Exemption Regulation and, from 2026, the Transport Block Exemption Regulation, Commission Regulation (EU) 2026/562.

Block exemptions are significant because they allow Member States to grant eligible support without waiting for an individual Commission approval. They do not, however, remove the obligation to comply with the substantive and administrative conditions of the relevant regulation.

9. De Minimis Aid

De minimis aid is a special category of small public support that is treated as falling outside the State aid notification requirement where the applicable conditions are satisfied.

The rationale is that support below specified ceilings is considered unlikely to affect competition and trade between Member States to an appreciable extent.

The general de minimis framework is governed by Commission Regulation (EU) 2023/2831.

Under this regulation, the total amount of de minimis aid granted by a Member State to a single undertaking must not exceed EUR 300,000 over any period of three years.

The ceiling applies to the undertaking as defined by the regulation, rather than automatically to each separate legal entity. Enterprises connected through specified ownership or control relationships may be treated as a single undertaking.

The regulation also establishes rules concerning transparency, the form of aid, cumulation and the calculation of the gross grant equivalent.

A separate framework applies to services of general economic interest. Under Commission Regulation (EU) 2023/2832, the de minimis ceiling for undertakings providing such services is EUR 750,000 over any period of three years.

The distinction is important. The general de minimis ceiling and the SGEI de minimis ceiling are not interchangeable, and the conditions of the relevant regulation must be examined before support is granted.

De minimis aid is not a general exemption from all public funding rules. The Member State must establish that the undertaking, the aid measure and the calculation of cumulative support satisfy the applicable regulation.

10. Existing Aid, New Aid and Unlawful Aid

The legal framework distinguishes between existing aid, new aid and unlawful aid.

Existing aid generally refers to aid that was already in existence before the relevant Treaty provisions became applicable to the Member State, aid authorised by the Commission, or aid deemed to have been authorised under the applicable procedural rules.

The Commission reviews existing aid in cooperation with Member States under Article 108(1) TFEU. If it considers that an existing scheme is incompatible with the internal market, it may propose appropriate measures to the Member State concerned.

New aid includes new schemes and individual grants, as well as certain alterations to existing aid.

Unlawful aid is aid implemented in breach of Article 108(3), particularly where it has been granted without the required notification or before the Commission has authorised it.

The distinction between unlawful and incompatible aid is essential.

Unlawful aid concerns a procedural breach. Incompatible aid concerns the substantive assessment of whether the measure can be permitted under the Treaty.

A measure may be unlawful because it was implemented without notification but later be found compatible with the internal market. Conversely, aid that was properly notified may ultimately be declared incompatible following the Commission’s assessment.

The procedural breach does not disappear merely because the Commission later considers the measure compatible. National courts retain an important role in protecting the rights arising from the standstill obligation.

11. Recovery of Unlawful and Incompatible Aid

Recovery is one of the strongest enforcement mechanisms in EU State aid law.

Under Article 16 of Regulation 2015/1589, where the Commission adopts a negative decision concerning unlawful aid, it must generally require the Member State to recover the aid from the beneficiary.

The purpose is not to punish the recipient. It is to restore the competitive position that existed before the aid was granted, as far as possible.

A beneficiary that received an unlawful advantage should not retain the economic benefit after the measure has been found incompatible with the internal market.

11.1. Recovery from the beneficiary

The Member State is responsible for implementing the Commission’s recovery decision. Recovery is normally directed at the undertaking that actually benefited from the aid.

The beneficiary may be required to repay the principal amount together with interest calculated from the date on which the aid was placed at its disposal until the date of recovery.

The interest requirement is important because the beneficiary enjoyed the use of the public resources during the relevant period. Repayment of the principal alone would not fully eliminate the financial advantage.

Recovery may become complicated where the beneficiary has undergone restructuring, changed ownership, merged with another undertaking or transferred its business. The authorities must identify the economic entity that retains the benefit and ensure that corporate restructuring does not defeat the effectiveness of recovery.

11.2. National procedures and effective recovery

Recovery is carried out under national procedural law, subject to the principles of equivalence and effectiveness and the requirement that the Commission’s decision be implemented immediately and effectively.

A Member State cannot rely on national rules to make recovery practically impossible or excessively difficult.

Article 16(3) of Regulation 2015/1589 expressly requires Member States to take the necessary measures available within their legal systems, including provisional measures where appropriate.

The Member State must act promptly. A failure to implement a recovery decision may lead to further proceedings before the Court of Justice.

11.3. Limitation period

Article 17 of Regulation 2015/1589 establishes a ten-year limitation period for the Commission’s powers to recover aid.

The period generally begins on the day the aid is awarded to the beneficiary, whether individually or under an aid scheme.

Actions taken by the Commission or by a Member State at the Commission’s request in relation to the unlawful aid interrupt the limitation period. Each interruption starts the period running afresh. The limitation period is suspended while proceedings concerning the Commission’s decision are pending before the EU Courts.

The limitation period concerns the Commission’s recovery powers under the regulation and must be considered in the context of the procedural history of the measure.

11.4. Recovery and legitimate expectations

Beneficiaries sometimes argue that they should not be required to repay aid because they acted in good faith, relied on national assurances or believed the measure was lawful.

However, legitimate expectations are recognised only in limited circumstances. A beneficiary should ordinarily exercise diligence and verify whether the aid was granted in compliance with the applicable EU rules.

In particular, where aid was granted without notification, a recipient cannot generally assume that the measure is lawful merely because national authorities authorised or paid it.

The Commission may refrain from requiring recovery where recovery would be contrary to a general principle of EU law, but this is an exceptional situation rather than a general defence based on good faith.

The Commission’s guidance on recovery of unlawful aid explains the purpose, calculation and implementation of recovery.

12. The Role of National Courts

Although the Commission has the central responsibility for assessing compatibility, national courts play an essential role in enforcing Article 108(3).

The division of responsibility is deliberate. The Commission determines whether aid is compatible with the internal market, while national courts protect individuals and businesses affected by breaches of the notification and standstill obligations.

A competitor may challenge the implementation of unnotified aid before a national court. Depending on the circumstances, the court may order interim measures, suspend payment, require repayment of unlawfully granted aid or award damages where the conditions of national and EU law are satisfied.

National courts cannot declare aid compatible with the internal market. That assessment belongs to the Commission. They may, however, determine whether a measure constitutes aid and whether the standstill obligation has been breached, subject to the relevant case law and the possibility of referring questions to the Court of Justice under Article 267 TFEU.

The Court of Justice has repeatedly emphasised the importance of the standstill obligation. National courts must ensure that its practical effect is preserved.

The Commission’s 2021 Notice on the enforcement of State aid rules by national courts provides detailed guidance on this relationship.

13. Judicial Review of Commission Decisions

Commission decisions in State aid matters may be challenged before the General Court under Article 263 TFEU.

Member States and institutions may bring actions for annulment under the conditions established by the Treaty. Private applicants, including beneficiaries and competitors, must satisfy the applicable standing requirements.

A beneficiary that is directly affected by a Commission decision may have standing to challenge it. Competitors may also challenge certain decisions where they can establish that their procedural rights have been affected or that the decision directly and individually concerns them, as required by the relevant case law.

Judicial review may concern:

• Whether the Commission correctly applied Article 107(1).
• Whether it properly identified State resources and imputability.
• Whether it correctly assessed the existence of an economic advantage.
• Whether the measure was selective.
• Whether the Commission correctly applied the relevant compatibility criteria.
• Whether the Commission respected procedural rights.
• Whether its reasoning was adequate and its assessment free from manifest error.

The EU Courts examine the legality of the Commission’s decision. They do not simply replace the Commission’s economic assessment with their own preferred policy judgment.

An action for annulment does not automatically suspend the decision. Under Article 278 TFEU, interim relief may be requested, but suspension requires a separate judicial order.

The judicial framework is particularly important in recovery cases because a beneficiary may challenge the Commission decision while the Member State remains obliged to implement recovery unless the EU Courts order otherwise.

14. Special Categories of State Aid

The broad Treaty framework is supplemented by specialised rules addressing particular economic activities and policy objectives.

14.1. Research, development and innovation

Aid for research and development can support projects that generate benefits beyond the undertaking receiving the funding. Knowledge spillovers, technological progress and the difficulty of obtaining private financing may justify public intervention.

The applicable rules distinguish between fundamental research, industrial research, experimental development and other innovation activities. The permitted aid intensity depends on the nature of the activity, the size of the undertaking and other relevant conditions.

The Commission examines whether public funding supports additional research activity rather than simply replacing expenditure that the undertaking would otherwise have undertaken.

14.2. Environmental and energy aid

Environmental and energy aid has become increasingly significant in the context of decarbonisation, renewable energy, energy efficiency and the modernisation of industrial infrastructure.

The Commission’s Guidelines on State aid for climate, environmental protection and energy 2022 provide a framework for assessing notified measures in these areas.

The guidelines address, among other matters, renewable energy, energy infrastructure, clean mobility, energy efficiency, industrial decarbonisation and environmental protection.

The Commission considers whether aid contributes to the relevant environmental objective, creates an incentive effect, is proportionate and avoids unnecessary distortions.

In 2025, the Commission also adopted the Clean Industrial Deal State Aid Framework, providing a targeted framework for support to certain strategic investments and industrial decarbonisation measures. Such frameworks illustrate how State aid policy responds to changes in the Union’s industrial and environmental priorities.

14.3. Services of general economic interest

Services of general economic interest (SGEI) are economic activities that public authorities consider particularly important and subject to specific public service obligations.

Examples may include public transport, energy supply, postal services and certain social services.

Article 106(2) TFEU recognises that undertakings entrusted with SGEI obligations may be subject to Treaty rules, including competition rules, insofar as the application of those rules does not obstruct the performance of the particular tasks assigned to them.

Public compensation for SGEI obligations may fall outside Article 107(1) under the Altmark conditions. Where it constitutes State aid, it may nevertheless be compatible under Article 106(2), the applicable Commission Decision or the SGEI Framework.

The central requirement is that compensation must be connected to clearly defined public service obligations and must not exceed what is necessary to perform them, subject to the applicable legal framework.

14.4. Crisis-related State aid

The Treaty framework allows the Commission to respond to exceptional economic circumstances through temporary compatibility frameworks.

The COVID-19 pandemic and the economic consequences of Russia’s invasion of Ukraine led to temporary measures that permitted Member States to provide support under specified conditions.

In 2026, the Commission also introduced a temporary framework addressing the effects of the Middle East crisis on particularly exposed sectors, including agriculture, fisheries, transport and energy-intensive industries. The framework is intended to remain in place until 31 December 2026, subject to its terms and the Commission’s ongoing review.

Such temporary instruments do not suspend Article 107 or Article 108. They establish conditions under which certain categories of support may be considered compatible or granted under simplified procedures.

15. Transparency and Monitoring

Transparency is an important part of the State aid framework. Public disclosure enables competitors, citizens, national authorities and the Commission to understand how public support is distributed.

The applicable transparency requirements depend on the legal basis for the aid. Under many State aid instruments, information about individual awards exceeding EUR 100,000 must be published, although different thresholds and deadlines apply to certain categories.

For de minimis aid, Member States must publish information on awards within 20 working days following the grant, in accordance with the applicable regulation.

The Commission also maintains public databases and decision records that allow interested parties to examine notified measures, authorised schemes and individual aid decisions.

Transparency is not merely an administrative requirement. It helps prevent hidden subsidies, facilitates monitoring of cumulative support and enables competitors to identify measures that may require legal scrutiny.

16. Recent Developments and the Direction of EU State Aid Policy

EU State aid policy is continuously evolving. The Commission must reconcile the need to preserve competitive neutrality with the need to support strategic investment, technological development, environmental objectives and economic resilience.

Several recent developments illustrate this direction.

First, the 2023 de minimis regulations increased and modernised the applicable ceilings. The general ceiling is EUR 300,000 over three years, while the SGEI de minimis ceiling is EUR 750,000 over the same period. These regulations apply until 31 December 2030.

Second, the Commission has reviewed the General Block Exemption Regulation with the objective of simplifying the rules and adapting them to current economic and technological developments. The 2026 consultation on a draft replacement regulation is an important stage in that process. Until a new regulation is formally adopted and becomes applicable, the existing GBER remains central to the exemption system.

Third, the Transport Block Exemption Regulation, Commission Regulation (EU) 2026/562, entered into force on 30 March 2026 and is intended to operate until 31 December 2034. It adds a sector-specific exemption framework for specified transport-related aid measures.

Fourth, the Clean Industrial Deal State Aid Framework adopted in 2025 reflects the Union’s attempt to accelerate investment in clean technologies, industrial decarbonisation and strategic manufacturing. It seeks to provide a structured basis for targeted public support while retaining safeguards against excessive competitive distortion.

These developments demonstrate that State aid law is not static. Its application reflects the economic priorities of the Union, but the underlying Treaty principles remain constant: public support must be legally justified, appropriately designed, proportionate and compatible with the internal market.

Key Takeaways

• Articles 107–109 TFEU form the central legal framework for EU State aid control.
• Article 107(1) prohibits aid granted through State resources that selectively favours undertakings and distorts or threatens to distort competition while affecting trade between Member States.
• The definition of State aid requires a cumulative assessment of the undertaking, State resources, imputability, economic advantage, selectivity, competition and trade.
• Public support is not automatically State aid. General measures and transactions conducted on market terms may fall outside Article 107(1).
• Article 107(2) identifies categories of aid that are compatible with the internal market.
• Article 107(3) allows the Commission to approve aid pursuing specified objectives, subject to the applicable compatibility conditions.
• Article 108(3) requires prior notification of new aid and prohibits implementation before authorisation unless an exemption applies.
• The General Block Exemption Regulation allows specified categories of aid to be granted without individual notification, provided all relevant conditions are satisfied.
• De minimis aid is subject to separate ceilings and conditions, including EUR 300,000 over three years under the general regulation and EUR 750,000 under the SGEI regulation.
• Unlawful aid and incompatible aid are distinct concepts. Unlawful aid breaches procedural requirements; incompatible aid fails the substantive compatibility assessment.
• Where unlawful aid is found incompatible, the Commission will generally require recovery with interest.
• National courts enforce the standstill obligation, while the Commission retains responsibility for assessing compatibility.
• Commission decisions may be challenged before the EU Courts under Article 263 TFEU.

Frequently Asked Questions

1. What is State aid under EU law?

State aid is an economic advantage granted by a Member State or through State resources that selectively favours certain undertakings or the production of certain goods and distorts or threatens to distort competition, insofar as it affects trade between Member States. All the conditions in Article 107(1) TFEU must be satisfied.

2. Is all government funding to businesses prohibited?

No. Public funding is not automatically prohibited. A measure may fall outside Article 107(1), or it may constitute State aid that is compatible with the internal market under Article 107(2) or Article 107(3). Certain categories may also be exempt from prior notification under applicable regulations.

3. Who decides whether State aid is compatible with the internal market?

The European Commission has the principal responsibility for assessing compatibility under Articles 107 and 108 TFEU. Its decisions are subject to judicial review by the General Court and, where appropriate, the Court of Justice.

4. What is the standstill obligation?

The standstill obligation under Article 108(3) TFEU requires a Member State to refrain from implementing notifiable new aid until the Commission has authorised it or the applicable legal procedure otherwise permits implementation. It prevents the creation of an advantage before the Commission has completed its examination.

5. What happens if a Member State grants aid without notifying the Commission?

The aid may be classified as unlawful aid. The Commission can investigate the measure and may ultimately require recovery if it finds the aid incompatible with the internal market. National courts may also enforce the standstill obligation before the Commission has reached a final decision on compatibility.

6. What is the difference between unlawful and incompatible State aid?

Unlawful aid has been implemented in breach of procedural requirements, particularly the notification and standstill obligations. Incompatible aid is aid that cannot be justified under the Treaty compatibility provisions. Unlawful aid may later be found compatible, but the original procedural breach remains relevant.

7. What is the General Block Exemption Regulation?

The GBER is Commission Regulation (EU) No 651/2014, as amended. It exempts specified categories of State aid from individual prior notification where detailed conditions are fulfilled. It covers areas such as regional development, SMEs, research and innovation, environmental protection, employment and infrastructure.

8. What is de minimis aid?

De minimis aid is limited public support that is treated as not satisfying all the criteria of Article 107(1) where the conditions of the relevant regulation are fulfilled. Under Regulation 2023/2831, the general ceiling is EUR 300,000 per single undertaking over any three-year period.

9. Must incompatible State aid always be repaid?

As a general rule, where the Commission adopts a negative decision concerning unlawful aid, the Member State must recover it from the beneficiary, together with interest. Recovery is intended to remove the competitive advantage rather than impose a punitive sanction. Exceptions are limited and must be consistent with EU law.

10. Can a competitor challenge State aid granted to another company?

Yes. A competitor may complain to the Commission and, where the legal conditions are satisfied, bring proceedings before a national court to enforce the standstill obligation. A competitor may also challenge certain Commission decisions before the EU Courts if it satisfies the applicable standing requirements.

11. Can public compensation for essential services constitute State aid?

It can. Compensation for services of general economic interest does not constitute State aid where all four conditions established in Altmark Trans are satisfied. If they are not, the compensation may still be compatible under Article 106(2) TFEU and the applicable SGEI rules.

12. Can a Member State grant emergency aid during an economic crisis?

Yes, but it must act within the Treaty framework. The Commission may adopt temporary frameworks or apply existing compatibility provisions to permit targeted support during exceptional circumstances. Such measures remain subject to the applicable conditions, including proportionality and safeguards against undue distortion.

Conclusion

State aid law establishes the legal boundaries within which Member States may use public resources to influence economic activity. It recognises that government intervention can be necessary to correct market failures, support disadvantaged regions, promote innovation, protect essential services and respond to exceptional economic circumstances. At the same time, it prevents public authorities from creating unjustified competitive advantages that undermine the internal market.

Articles 107–109 TFEU achieve this balance through a combination of substantive prohibitions, compatibility grounds, notification obligations, block exemptions and enforcement procedures. The Commission assesses the compatibility of aid, while Member States remain responsible for ensuring that their measures comply with the Treaty and the applicable regulations. National courts protect the rights arising from the standstill obligation, and the EU Courts review the legality of Commission decisions.

The effectiveness of the system depends on the distinction between legitimate public intervention and selective economic favouritism. State aid is not judged solely by the government’s stated intention or by the social value of the supported activity. Its legal character depends on the economic advantage created, the resources involved, the beneficiaries selected and the effects on competition and trade.

The underlying principle is therefore not that governments must refrain from supporting economic development. It is that public support must be transparent, legally justified and designed in a way that preserves fair competitive conditions across the European Union.

Primary Legal Sources and Further Reading

Treaty provisions

• Article 107 TFEU – State aid and compatibility
• Article 108 TFEU – Commission supervision and notification
• Article 109 TFEU – Regulations implementing State aid rules
• Article 106 TFEU – Public undertakings and services of general economic interest

Principal regulations

• Council Regulation (EU) 2015/1589 – Procedural rules for State aid
• Council Regulation (EU) 2015/1588 – Enabling Regulation
• Commission Regulation (EU) No 651/2014 – General Block Exemption Regulation
• Commission Regulation (EU) 2023/2831 – General de minimis aid
• Commission Regulation (EU) 2023/2832 – De minimis aid for services of general economic interest
• Commission Regulation (EU) 2026/562 – Transport Block Exemption Regulation

Commission guidance and policy documents

• European Commission – State Aid Overview
• European Commission – State Aid Procedures
• European Commission – Recovery of Unlawful Aid
• European Commission – State Aid Legislation and Regulations
• Guidelines on State aid for climate, environmental protection and energy 2022

Important Court of Justice judgments

• France v Commission (Stardust Marine), Case C-482/99 – State resources and imputability.
• Altmark Trans, Case C-280/00 – Compensation for services of general economic interest.
• Commission v EDF, Case C-124/10 P – Market economy operator principle.
• British Aggregates v Commission, Case C-487/06 P – Selectivity and the assessment of State aid.
• CELF and Ministre de la Culture, Case C-199/06 – Consequences of unlawful aid and the standstill obligation.