Overview
| Field | Value |
|---|---|
| Region | Europe |
| ISO 3166-1 | GG / GGY |
| Registry | Guernsey Registry |
| Last updated | 2026-06-10 |
Identifiers
Collect two identifiers from each business customer in Guernsey and submit them as strings on the application body.| API field | Local name | Issuer |
|---|---|---|
businessInfo.taxId | Tax Reference Number (TRN) | Guernsey Revenue Service |
businessInfo.businessEntityId | Company Registration Number | Guernsey Registry |
Sector regulators
Guernsey Financial Services Commission (GFSC) · Guernsey Registry · Guernsey Revenue Service · Committee for Home Affairs (gambling)
Legal structures
| Local name | Abbreviation | Description |
|---|---|---|
| Private Company Limited by Shares | Ltd | The most common Guernsey corporate vehicle; incorporated under Companies (Guernsey) Law, 2008; members’ liability limited to unpaid amounts on shares; share transfer restrictions typical; widely used for trading, asset-holding, and group subsidiaries. Equivalent to a US LLC. |
| Public Company Limited by Shares | Plc | Incorporated under Companies (Guernsey) Law, 2008; shares may be offered to the public; eligible for listing on exchanges including The International Stock Exchange (TISE) and the London Stock Exchange; subject to enhanced disclosure obligations. Closest US equivalent: C-Corp. |
| Company Limited by Guarantee | — | Incorporated under Companies (Guernsey) Law, 2008; no share capital; members’ liability capped at their guaranteed amount on winding up; used by charities, clubs, member associations, and non-profit bodies. Closest US equivalent: Nonprofit Corporation. |
| Unlimited Liability Company | — | Incorporated under Companies (Guernsey) Law, 2008; shareholders bear unlimited personal liability for company debts; used in specific international tax-planning and regulatory contexts where unlimited liability is preferred. Closest US equivalent: C-Corp (with unlimited shareholder liability). |
| Mixed Liability Company | — | Introduced by Companies (Guernsey) Law, 2008; hybrid structure with a combination of limited-by-shares, guarantee, and/or unlimited-liability members within a single entity; used for complex structuring, asset protection, and tax-planning arrangements. Closest US equivalent: there is no direct US equivalent; closest analogy is a hybrid LLC with bespoke member classes. |
| Protected Cell Company | PCC | Incorporated under Companies (Guernsey) Law, 2008; a single legal entity with the ability to create any number of ‘protected cells’ whose assets and liabilities are statutorily ring-fenced from one another and from the core; cells are not separate legal entities. Guernsey pioneered this structure in 1997. Widely used for umbrella investment funds, captive insurance, and structured finance. Closest US equivalent: Series LLC. |
| Incorporated Cell Company | ICC | Introduced by Companies (Guernsey) Law, 2008; a parent entity that creates ‘incorporated cells’ each with its own separate legal personality and memorandum and articles, forming a cost-effective quasi-group structure; cells cannot act independently of the ICC. Used in investment funds and insurance. Closest US equivalent: holding company with wholly-owned subsidiaries (each a separate legal entity). |
| Limited Liability Partnership | LLP | Formed under Limited Liability Partnerships (Guernsey) Law, 2013; separate legal entity distinct from its members; members’ liability limited to amounts set out in the members agreement; must have at least two members and a resident agent in Guernsey; used for professional services firms. Equivalent to a US LLP. |
| Limited Partnership | LP | Registered under Limited Partnerships (Guernsey) Law, 1995; at least one general partner with unlimited joint and several liability and at least one limited partner whose liability is limited to their capital contribution; widely used for private equity and fund structures. Equivalent to a US Limited Partnership (LP). |
| General Partnership | — | Formed under Partnerships (Guernsey) Law, 1995; two or more persons carrying on business in common; no separate legal personality; partners bear unlimited joint and several liability; no mandatory registration with the Guernsey Registry. Equivalent to a US General Partnership (GP). |
| Foundation | Fdn. | Established under Foundations (Guernsey) Law, 2012; a separate legal entity with no shareholders or members; managed by a council; funded by a founder endowing initial capital; name must include ‘Foundation’ or ‘Fdn.’; used for private wealth management, philanthropy, and estate planning; must have a resident agent who is a GFSC-licensed fiduciary. Closest US equivalent: Statutory trust or business trust. |
| Sole Trader | — | A single individual trading on their own account under Guernsey customary and tax law; no separate legal personality; the individual bears unlimited personal liability; tax obligations governed by Income Tax (Guernsey) Law, 1975; no mandatory registration with the Guernsey Registry (only tax registration with Revenue Service required). Equivalent to a US Sole Proprietorship. |
| Branch of Foreign Company | — | A foreign-incorporated entity establishing a place of business in Guernsey. Registration with the Guernsey Registry may be required under the Companies (Guernsey) Law, 2008 (Part XXIII overseas-company provisions); GFSC regulatory consent is also required if undertaking banking, insurance, investment, fiduciary, or other regulated activities. Not a separate Guernsey legal entity — the foreign parent remains fully liable. Closest US equivalent: foreign corporation branch/representative office. |
How documents combine
For each evidence area, this table shows whether the listed documents are alternatives (any one of) or a bundle (all required). The artifact-by-artifact lookup follows below.| Evidence area | Documents needed |
|---|---|
| Legal Registration | Certificate of Incorporation |
| Constitutive Documents | Memorandum and Articles of Incorporation |
| Tax Registration | Revenue Service Tax Reference Number Letter |
| Ownership Records | Register of Members |
| Governance Records | Register of Directors (optional: Guernsey Registry Director Extract) |
| Signing Authority | Any one of: Board Resolution · Power of Attorney |
| Address | Any one of: Lease Agreement · Utility Bill · Bank Statement |
| Good Standing | Certificate of Good Standing |
Documents to collect
The physical documents you’ll collect from your customer, with the evidence area each one proves. One document can prove multiple areas — for example, Brazil’s Cartão CNPJ covers both tax and business-registration proof, so it appears once with both areas listed.| Document | Proves |
|---|---|
| Certificate of Incorporation | Legal Registration |
| Memorandum and Articles of Incorporation | Constitutive Documents |
| Revenue Service TRN Notification | Tax Registration |
| Register of Members | Ownership Records |
| Register of Directors | Governance Records |
| Registry Statement of the Register (Director Extract) | Governance Records |
| Board Resolution | Signing Authority |
| Power of Attorney | Signing Authority |
| Lease Agreement | Address |
| Utility Bill (≤90 days old) | Address |
| Bank Statement (≤90 days old) | Address |
| Certificate of Good Standing | Good Standing |
| Sector-Specific License | GFSC Banking Licence, GFSC Fiduciary Licence, GFSC Investment Licence (POI), GFSC Insurance Licence, GFSC Payment Services Licence |
Collection notes
- Legal Registration: Issued by the Guernsey Registry (Registrar of Companies) upon incorporation under Companies (Guernsey) Law, 2008. States the company’s registered name, registration number (e.g. CMP10001), type, and date of incorporation. Electronic certificates are available instantly (£2); certified paper copies take 2–3 business days. The Registry also holds the filed memorandum and articles as public records.
- Constitutive Documents: The constitutive document for Guernsey companies under Companies (Guernsey) Law, 2008 s.9–10; formally called ‘Memorandum and Articles of Incorporation’ (not ‘Association’ as in UK practice). The memorandum states the company name, registered office location in Guernsey, company type, member liability, and (if restricted) objects. The articles govern internal management. Filed with the Registry at incorporation and publicly available. For LLPs, the equivalent is a Members Agreement (not public).
- Tax Registration: Guernsey has no VAT or GST. The Revenue Service issues a Tax Reference Number (TRN) to all Guernsey-incorporated companies automatically upon registration; the TIN for international reporting purposes is the company’s Guernsey registration number (CMP-series) as issued by the Registry. Companies pay income tax at 0% (standard), 10% (banking, insurance, fiduciary, investment management services to individual clients, custody services, licensed fund administration, operating an investment exchange, aircraft registry, cannabis/controlled drug cultivation and production), or 20% (retail/property exceeding £500k profit, regulated trading). Investment management services provided to collective investment schemes are taxed at 0%, not 10%. Taxable entities must file an annual corporate tax return. No separate tax certificate document is issued — the TRN appears on Revenue Service correspondence. Additionally, effective 1 January 2025, Guernsey enacted a Qualified Domestic Top-up Tax (DTT) and Multinational Top-up Tax (MTT) under the Income Tax (Approved International Agreements) (Implementation) (OECD Pillar II) Regulations 2024, applying to MNE groups with EUR 750 million+ consolidated revenue. In-scope groups must register a Domestic Filing Entity with the Revenue Service using the existing TRN framework — no new separate identifier is issued.
- Sector-Specific License: The Guernsey Financial Services Commission (GFSC) supervises banking, fiduciary (trust and corporate service providers), insurance, investment (funds and asset managers), and pensions. The Protection of Investors (Bailiwick of Guernsey) Law, 2020 requires a licence for controlled investment business. The Banking Supervision (Bailiwick of Guernsey) Law, 2020 governs banking. The Insurance Business (Guernsey) Law, 2002 governs insurance. The Regulation of Fiduciaries, Administration Businesses and Company Directors, etc (Bailiwick of Guernsey) Law, 2020 governs fiduciary services. Gambling is licensed by the Committee for Home Affairs under the Gambling (Guernsey) Ordinance, 2005.
- Governance Records: Every Guernsey company must maintain a Register of Directors under Companies (Guernsey) Law, 2008. Director names, addresses, and appointment dates are publicly accessible via the Guernsey Registry portal (free basic search). The annual validation submission includes current director details. The Registry portal (portal.guernseyregistry.com) displays directors as part of the company’s public record.
- Signing Authority: No statutory form prescribed. A written board resolution passed by the directors is standard practice to authorise a specific signatory to act on behalf of the company. Power of attorney may also be used, executed as a deed under Guernsey law. Companies (Guernsey) Law, 2008 s.44 governs execution of documents.
- Address: Conduit accepts a signed lease (no time limit), utility bill, or bank statement dated within 90 days as proof of registered or operating address. The same document satisfies both registered-address and principal-place-of-business checks.
- Good Standing: Issued by the Guernsey Registry; certifies that the company is incorporated, has filed its annual validation declaration (due by 28 February each year for companies; 31 March for LPs, LLPs and Foundations), and remains on the register in good standing. Cost: £10 for electronic; £15 for certified paper copy (2–3 business days; legacy companies up to 5–10 days). Electronically signed by an authorised officer of the Guernsey Registry. If the company is not in good standing, the Registry issues a search extract confirming current status instead.
Person roles
When you submit a person on the application body, set theirrole to one of Conduit’s canonical BusinessPersonRole values. Use this table to map a local corporate-governance title onto the right canonical role.
| Local role | Canonical API role | Description |
|---|---|---|
| Director | CONTROLLING_PERSON | Appointed officer with executive authority to manage the company; named in the Register of Directors and publicly visible via the Guernsey Registry portal; at least one director required under Companies (Guernsey) Law, 2008. |
| Councillor (Foundation) | CONTROLLING_PERSON | Governance officer of a Guernsey Foundation (equivalent to director); manages the foundation in accordance with its Constitution and the Foundations (Guernsey) Law, 2012; must act unanimously unless the Constitution provides otherwise. |
| General Partner | CONTROLLING_PERSON | In a Limited Partnership (Limited Partnerships (Guernsey) Law, 1995): bears unlimited joint and several liability for the LP’s debts and manages the partnership. |
| Authorised Signatory | LEGAL_REPRESENTATIVE | Natural person empowered by board resolution or power of attorney to bind and sign for the company; no statutory form prescribed. |
Notes
- Guernsey is a Crown Dependency, not part of the UK or EU. It is a separate jurisdiction with its own legislation, courts, and regulatory framework. Documents are in English.
- The Guernsey Registry replaced legacy system ‘greg.gg’ with a new Online Services Portal (portal.guernseyregistry.com) in December 2023. All company searches, filings, and document orders are through this portal.
- Annual validation must be filed between 1 January and 28 February each year for companies (confirming directors, resident agent, business activity, share capital, and audit-exempt status as at 31 December). LPs, LLPs, and Foundations have a separate window: 1 March to 31 March. Failure to file risks striking off.
- No VAT or GST applies in Guernsey. The standard corporate income-tax rate is 0%. The 10% intermediate rate applies to: banking, domestic insurance, insurance intermediary and management, custody services, licensed fund administration, regulated fiduciary activities, regulated investment management services to individual clients (services to collective investment schemes remain at 0%), operating an investment exchange, compliance services to regulated financial-services businesses, operating an aircraft registry, and cannabis/controlled drug cultivation and production. The 20% rate applies to retail businesses and domestic utility providers with Guernsey-source profits exceeding £500,000, and to property income. Tax registration is automatic for Guernsey-incorporated entities. Effective 1 January 2025, a Qualified Domestic Top-up Tax (DTT/QDMTT) and Multinational Top-up Tax (MTT/IIR) apply to MNE groups with EUR 750 million+ consolidated annual revenue under the OECD Pillar Two framework (Income Tax (Approved International Agreements) (Implementation) (OECD Pillar II) Regulations 2024); both have received OECD Transitional Qualified Status.
- Cell companies (PCC and ICC) are widely used in Guernsey’s funds and insurance sectors. The Guernsey Registry registers PCCs and ICCs under the Companies (Guernsey) Law, 2008. Each incorporated cell of an ICC has its own CMP-series registration number.
- Foundations (Fdn.) must be established through a GFSC-licensed fiduciary (Corporate Service Provider). Registration number uses ‘FND’ prefix.
- A company registration application can only be submitted to the Guernsey Registry by a licensed Corporate Service Provider (CSP) holding a GFSC fiduciary licence — direct self-registration is not permitted.