EU State Aid Rules – Tax Dimension

EU State Aid rules (Arts. 107–109 TFEU) prohibit state aids that distort or threaten to distort competition in the internal market, unless expressly authorised under EU law. In the tax domain, this particularly covers selective tax advantages granted to individual companies or groups that confer an economic benefit not available to competitors.

• Core elements: Measure is state-sourced, selective, favours an undertaking, distorts competition, affects trade between member states
• Prominent cases: Apple/Ireland, Amazon/Luxembourg, Fiat/Luxembourg, Starbucks/Netherlands
• Enforcement: European Commission (DG Competition); recovery with interest is possible
• Arm's-length principle: Commission applies the arm's-length principle to assess favourable APAs

The TFEU state aid rules originate from the original EEC Treaties of 1957. Their tax application remained largely overlooked for a long time. It was only with growing public attention to aggressive tax planning by multinationals – amplified by revelations such as LuxLeaks (2014) – that the Commission began systematically investigating tax rulings and special schemes for state aid compliance.

High-profile decisions in 2015–2017 triggered a debate about the reach of state aid law in the tax domain: the Commission ordered recoveries from Apple/Ireland (EUR 13 billion), Fiat/Luxembourg (approx. EUR 23 million) and Amazon/Luxembourg (approx. EUR 250 million); in the Starbucks/Netherlands case, the General Court annulled the decision. The CJEU annulled the Commission's Apple decision at first instance but confirmed it on appeal (September 2024). The Commission has positioned state aid review as a complementary instrument to ATAD and the BEPS project.

In the tax domain, the Commission scrutinises for state aid in particular:

• Advance Pricing Agreements (APAs) and tax rulings deviating from the arm's-length principle
• Special tax rates or tax bases for specific companies or sectors
• Tax exemptions or reliefs not of general application but limited to specific beneficiaries
• State-subsidised depreciation regimes

General tax rules applied indiscriminately to all undertakings are in principle not state aid.

• Notification obligation: aid must be notified to the Commission before granting (Art. 108(3) TFEU) – exceptions: de minimis aid, GBER (General Block Exemption Regulation)-exempted aid
• Recovery obligation: unlawful aid must be recovered with interest
• Transparency: member states must publish aid data in the Transparency Award Module (TAM) database
• Arm's-length test for tax rulings: transfer pricing arrangements must comply with the arm's-length principle

3 corrections:
- effective_date '1957-01-01' corresponds to neither signing (25 March 1957) nor entry into force (1 January 1958) of the EEC Treaty.
- It was the General Court (not CJEU) that annulled the Apple decision at first instance (July 2020).
- Same CJEU/General Court error in English version.
4 clarifications.
4 notes.