Your customer or buyer is asking for ESG information about Guernsey supply chains. Here is what the regulatory environment requires.
Guernsey is a British Crown Dependency in the English Channel, comprising the island of Guernsey and several smaller islands including Alderney, Sark, and Herm. It is not part of the United Kingdom or the European Union, but has a unique constitutional relationship with the UK Crown. Guernsey's economy is dominated by financial services — it is a major offshore financial centre with approximately £300 billion in assets under management. Guernsey was the world's first jurisdiction to introduce a dedicated Green Fund framework (2018), and Guernsey Finance has positioned the island as a leading sustainable and green finance centre. The Guernsey Financial Services Commission (GFSC) has introduced ESG disclosure requirements for Guernsey-domiciled investment funds.
Key regulations in Guernsey — ESG Supplier Guide
GFSC Green Fund Framework — World's First
Guernsey introduced the world's first dedicated Green Fund framework in 2018 — predating the EU Sustainable Finance Disclosure Regulation (SFDR) by three years. The framework provides a voluntary designation for investment funds that meet defined green investment criteria. Guernsey-domiciled funds seeking the Green Fund designation must meet criteria covering investment objectives, investment policies, and reporting requirements. The framework has been updated to align with international standards including the EU Taxonomy.
GFSC ESG Disclosure Requirements
The Guernsey Financial Services Commission has issued guidance requiring Guernsey-domiciled investment funds and managers to make ESG disclosures. The guidance aligns with international standards including the TCFD (Task Force on Climate-related Financial Disclosures) and ISSB standards. Guernsey-domiciled funds marketing to EU investors must also comply with EU SFDR.
UK Modern Slavery Act — Guernsey Supply Chains
Guernsey is not subject to the UK Modern Slavery Act directly, but Guernsey-registered companies with UK operations or UK-based group companies may be subject to MSA reporting requirements. Guernsey has its own modern slavery legislation — the Modern Slavery (Bailiwick of Guernsey) Law 2021 — which applies to businesses operating in Guernsey with a turnover above £36 million.
Guernsey Data Protection Law & GCHQ/NCSC Cyber Obligations
Guernsey's Data Protection (Bailiwick of Guernsey) Law 2017 (as amended) is closely aligned with GDPR and requires data controllers to notify the Office of the Data Protection Authority (ODPA) within 72 hours of becoming aware of a personal data breach likely to result in a risk to the rights and freedoms of individuals. Guernsey has EU adequacy recognition. As a Crown Dependency, Guernsey benefits from NCSC (UK National Cyber Security Centre) guidance and threat intelligence. The Channel Islands Financial Ombudsman and the Guernsey Financial Services Commission (GFSC) impose sector-specific cybersecurity requirements on financial services firms. Suppliers processing Guernsey customer data must align incident response to the ODPA 72-hour notification window.
What this means for you as a supplier
Guernsey is a low-risk jurisdiction and a global leader in sustainable finance. Investment funds domiciled in Guernsey benefit from the world's first Green Fund framework. GFSC ESG disclosure requirements apply to Guernsey-domiciled funds. Companies with UK operations should assess UK Modern Slavery Act obligations. Guernsey's own Modern Slavery Law applies to large businesses operating in the Bailiwick.
Key dates
2018 (ongoing)
Guernsey Green Fund framework — world's first dedicated green fund designation
Ongoing
GFSC ESG disclosure requirements — applies to Guernsey-domiciled investment funds
Ongoing
Modern Slavery (Bailiwick of Guernsey) Law 2021 — applies to businesses with turnover above £36 million
Guernsey: the world's first Green Fund jurisdiction — and the Alderney question
Guernsey's claim to ESG leadership rests on a genuine first: in 2018, the Guernsey Financial Services Commission introduced the world's first dedicated Green Fund framework — a voluntary designation for investment funds meeting defined green investment criteria. The framework predated the EU Sustainable Finance Disclosure Regulation (SFDR) by three years and has been updated to align with the EU Taxonomy and ISSB standards. Guernsey Finance — the island's financial services promotion agency — has invested significantly in positioning Guernsey as a sustainable finance centre, with particular focus on green bonds, ESG funds, and impact investing. The Bailiwick of Guernsey comprises Guernsey, Alderney, Sark, and Herm. Alderney — with a population of approximately 2,000 — has its own legislature (the States of Alderney) and is part of the Bailiwick for financial services regulation purposes. Alderney's economy is based primarily on online gambling licences, tourism, and fishing. The Alderney Gambling Control Commission is one of the world's most respected online gambling regulators. From an ESG perspective, Alderney's primary supply chain is the online gambling sector — which has its own ESG considerations around responsible gambling, data protection, and financial crime. The Guernsey Green Fund framework applies to the entire Bailiwick, including Alderney — though in practice, Alderney's online gambling sector is not a primary user of the Green Fund designation.
Last reviewed: April 2026. This guide is for general information only and does not constitute legal advice. Regulations change — verify current requirements with a qualified adviser.
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