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Before 31 January 2020, UK public authorities granting subsidies above de-minimis thresholds required prior notification to and approval from the European Commission under EU state-aid rules (TFEU Articles 107-109). This created compliance uncertainty, approval lead times of 6-18 months for complex schemes, and Commission veto power over UK domestic policy instruments.
Post-Brexit, the UK-EU Trade and Cooperation Agreement (TCA), signed 24 December 2020, obligated both parties to maintain a domestic subsidy-control regime consistent with WTO subsidy disciplines (ASCM) and certain additional TCA-specific transparency and non-discrimination commitments. The Subsidy Control Act 2022 is the UK's legislative delivery of that obligation. It came into force on 4 January 2023 after transitional guidance operated from January 2021.
The Act creates a principles-based, self-assessment regime:
1. Subsidy control principles (Schedule 1). Seven principles drawn from the WTO Agreement on Subsidies and Countervailing Measures: subsidies must serve a specific policy objective; be proportionate; address a market failure or equity objective; not impose unnecessary burdens on competition; be designed to bring about a change in behaviour; not compensate for costs the beneficiary would have borne regardless; and be consistent with the TCA. Grantor (the public authority) is responsible for self-assessment against these principles before granting.
2. Mandatory referral to the Subsidy Advice Unit (SAU) at the CMA for "subsidies of interest" (individual subsidies or schemes meeting specific threshold criteria, typically >GBP 10M in sensitive sectors or >GBP 50M in others) and "subsidies of particular interest" (larger or more complex measures). SAU issues a non-binding advisory report within 30 working days. The grantor is not required to follow it but must publish their reasons if they deviate.
3. Transparency database. All subsidies above de-minimis (GBP 500 per beneficiary per year for SGEI; GBP 315,000 for other) must be entered into the UK Subsidy Transparency Database managed by the Cabinet Office. Entries are publicly searchable.
4. Enforcement: Competition Appeal Tribunal (CAT). Third parties with a sufficient interest (including foreign states under TCA dispute provisions) may challenge a subsidy decision before the CAT within one month of the subsidy being published in the database.
5. Specific chapters for sensitive sectors. Financial services subsidies, energy and environment subsidies, aviation and airports, and transport have additional sector-specific principles.
The Act is a framework enabler rather than a direct industrial- policy action. Its immediate effect is to remove procedural constraints (EU prior-notification), not to mandate or fund any specific outcome. The market-moving consequences depend entirely on downstream government actions that use the framework. Severity 2 reflects:
EU veto on UK subsidies)
any single strategic industry
The Act would become higher-severity in retrospect if the UK uses it to fund large-scale domestic semiconductor, clean-energy, or advanced-manufacturing capacity in a way that directly reshapes global supply chains.
The Act is the legal foundation for several major post-Brexit UK industrial-policy interventions already in train:
in long-run semiconductor support (R&D, design cluster, NSTC concept). The subsidy components rely on the SCA framework.
allowances and business-rate reliefs. SAU advisory process applies to larger beneficiary packages.
announced July 2023):** c. GBP 500M in government support for EV battery manufacturing. Required SAU referral; CMA issued a non-binding advisory report in late 2023.
rounds:** structured under SCA compliance.
Cross-reference: the UK Semiconductor Strategy (May 2023) is a candidate for a separate IPTM filing as a direct subsidy-and-industrial-policy action.
The new UK regime is materially more permissive than the EU predecessor in two respects: 1. Speed: no prior Commission approval, so the grantor can commit funding subject only to SAU non-binding review. 2. Ideology: the EU regime historically presumed subsidies were distortive unless exempted (General Block Exemption Regulation, GBER). The UK SCA presumes subsidies are lawful if the grantor has properly self-assessed against the principles. This is a significant cultural and procedural shift that has materially accelerated large- project negotiations.
The trade-off is weaker discipline: with no prior notification and a weak enforcement mechanism (CAT challenge is expensive and slow), there is a risk of subsidy races between UK devolved and local authorities, and of politically motivated grants that would not have passed EU scrutiny.
or will the self-assessment regime drift toward under-compliance?
the EU brings a challenge? (No precedent yet by 2025.)
semiconductor fab award (analogous to the US CHIPS Act awards to TSMC AZ and Intel OH) remains the key IPTM watch item for the UK.