Key Takeaways
- A TIEA allows exchange of information on request rather than the automatic reporting seen under CRS, so data moves only when a foreign authority makes a specific demand.
- Requests follow a defined process running through the Director of the Revenue Service under the Income Tax (Guernsey) Law before any response is provided.
- Confidentiality rules and disclosure limits restrict what can be shared, and the person concerned may have notification and appeal rights.
- Understanding the scope and safeguards helps a non-resident owner assess what information could realistically be sought and how Guernsey meets OECD transparency standards.
TIEAs in Guernsey: What Information Exchange on Request Really Means
Tax Information Exchange Agreements (TIEAs) in Guernsey are bilateral instruments under which the island and a partner country agree to share tax-related information about named individuals and entities, but only when a formal, justified request is made. The island has signed 61 such agreements, all administered by the Director of the Revenue Service, and its overall transparency standing carries the highest "Compliant" rating from the OECD Global Forum.
This article explains how on-request exchange works, what can be asked for, how a request travels from a foreign authority to a Guernsey response, and the safeguards and appeal rights that apply. It is written for foreign owners, investors, and their advisers holding assets or structures connected to the island who need to understand their exposure to a lawful information request.
How a TIEA Differs from a Double Tax Treaty and from CRS
A TIEA exists for one purpose: to allow tax authorities to obtain information from each other on request. It carries no relief from taxation, which sets it apart from a Double Taxation Agreement (DTA), whose function is to prevent the same income being taxed twice and to remove barriers to cross-border trade.
The concept grew out of the 1998 OECD report on harmful tax practices and took practical effect from 2002. It implements the Exchange of Information on Request (EOIR) standard, meaning information moves only when a competent authority asks for it in a specific case.
The Common Reporting Standard works the opposite way. Adopted by the Global Forum in 2014, CRS requires financial institutions to report non-resident account data to their local authority annually, which then transmits it automatically to the account holder's country of residence.
| Feature | TIEA | DTA | CRS |
|---|---|---|---|
| Primary purpose | Information exchange | Prevent double taxation | Account information reporting |
| Trigger | Formal request | Treaty claim | Automatic, annual |
| Tax relief offered | None | Yes | None |
The island runs both bilateral instruments side by side: 61 TIEAs and full DTAs with 14 jurisdictions, among them Jersey, the Isle of Man, Luxembourg, Singapore, and the United Kingdom. A TIEA can also serve as the legal base for a competent authority agreement enabling automatic exchange where no multilateral framework is yet in place.
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Guernsey's TIEA Network: How Many Agreements and With Which Countries
Sixty-one agreements have been signed to date, with the full list and request templates published on the official States of Guernsey TIEA page. Negotiations began at the end of 2001, a formal OECD commitment followed in February 2002, and the first agreement, with the United States, was concluded that September.
The US TIEA entered into force on 30 March 2006; a Protocol amending it was signed on 13 December 2013. The UK agreement, together with a Protocol to the 1952 Double Taxation Arrangement, took effect on 27 November 2009.
While the United Kingdom usually signs international agreements on the island's behalf, tax agreements are an exception. Through a process of entrustment, the island concludes its own TIEAs and DTAs directly.
These agreements extend to Guernsey, Alderney, and Herm. Sark and Jethou fall outside their reach, a structural point that matters for any arrangement anchored to those islands.
Because OECD members were slow to make contact in the early years, the island approached OECD, EU, and G20 states with which it was not already in talks, and was the first offshore centre to seek TIEA negotiations with members of the Southern African Development Community. Russia and Panama declined the offer to negotiate. As membership of the Multilateral Convention has grown, demand for new bilateral TIEAs aimed purely at information exchange has fallen.
The Legal Basis: Income Tax (Guernsey) Law and the Role of the Director of the Revenue Service
Tax administration sits with the Director of the Revenue Service, acting under the Income Tax (Guernsey) Law, 1975, as amended. That office carries the care and management of income tax functions and the implementation of any approved international agreement, including TIEAs.
The information-gathering powers live in sections 75A and 75B of the Law. Under section 75B, the Director may issue a notice requiring a third party to produce documents and information in their possession or power that, in the Director's opinion, are or may be relevant to a taxpayer's liability. These powers operate only where a valid request has been made under a TIEA.
The Revenue Service collects income tax and social security contributions and handles international exchange of information for tax cases. The Director also publishes Statements of Practice, which set out interpretations of the Law, and TIEA-related queries are directed to the competent authority through the Revenue Service's international page.
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Scope of Information That Can Be Requested Under a Guernsey TIEA
Each agreement follows the OECD Model Agreement on Exchange of Information on Tax Matters (2002), so the categories of obtainable data are broadly consistent across partners. Typical material includes bank account details, the ownership and identity of legal entities, financial records, and documents held by advocates, accountants, and banks.
A request reaches that information only if it is properly made. The requesting authority must establish a prima facie case, and partner countries may narrowly tailor the conditions that trigger exchange and restrict the data categories that must be transferred.
Information that pre-dates a TIEA's entry into force can still be obtained where it relates to a criminal tax matter, and may then be used for a civil tax assessment.
Where documents are produced, the Director specifies the form, whether paper or digital, and may ask to see originals.
The Request Process: From Foreign Authority to Guernsey Response
A request moves through a defined sequence rather than an open enquiry. The OECD publishes a Model Template in several languages to help competent authorities frame their requests, and the island publishes its own Request Template for incoming use, alongside an internal Request Review Template applied by the tax office.
- The foreign competent authority submits a request stating the taxpayer's identity, the nature and form of information sought, the tax purpose, and the reason to believe the data is held on the island.
- The Revenue Service reviews the request against the relevant TIEA article and confirms relevance to the requesting authority's functions.
- Where the request is valid, the Director issues a formal notice under section 75B to the holder of the information, such as a bank, trustee, or advocate.
- The information is gathered and, where applicable, consent from relevant partner jurisdictions is obtained before transmission.
A letter sent to all TIEA partners, published on the official website, sets out interpretation and practical matters concerning the island's agreements. No public data is published on average processing times or formal acknowledgment deadlines.
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Safeguards, Confidentiality and Limits on What Can Be Disclosed
Information that arrives under a TIEA is fenced by use restrictions. It may be used only for the tax purposes for which it was requested, and disclosed only to persons or authorities concerned with assessing, enforcing, or collecting that tax, consistent with Article 8 of the OECD Model TIEA.
A general prohibition bars disclosure of information obtained or created under the 1975 Law, binding those subject to it at any time and place and in perpetuity. Disclosed data is also governed by the island's Data Protection Law, and the Director has issued a Code of Practice on Data Protection accessible through the Revenue Service.
Several grounds allow a request to be declined. These include a request that amounts to a fishing expedition, disclosure that would reveal trade, commercial, or professional secrets, and information subject to legal professional privilege. The island has never refused of its own accord to negotiate a TIEA or DTA with any territory.
Notification, Appeal Rights and Protections for the Person Concerned
The recipient of a notice, typically a bank or trustee, can appeal the decision to issue it. The 1975 Law does not give the taxpayer under investigation an express right to challenge the notice, but a Court of Appeal decision confirmed that judicial review is open to taxpayers in relation to a Director's decision, as the Carey Olsen briefing sets out.
Under section 75K, an appeal to the Royal Court against the decision to issue a notice requires leave from the Bailiff, and the application for leave must be made within 30 days of the notice. The grounds are limited to a decision that was ultra vires, unreasonable in law, or otherwise legally flawed, or one resting on a material error of fact.
Where a request follows the TIEA's provisions, a factual-error challenge succeeds only if the Bailiff is satisfied the error relates to the notice itself, such as the identity of the taxpayer, rather than to the circumstances behind the request. In one case the Bailiff granted leave to appeal but refused a stay, so the institution still had to comply on time, while injuncting the Director from transmitting the information abroad until the appeal was decided.
Whether a notice-holder must or may tell the taxpayer about the request remains a live question of practice, with legal risk attaching to either choice.
How TIEAs Fit the OECD Transparency Standards and Guernsey's Standing
The OECD standard treats a minimum of 12 TIEAs as the threshold for a cooperating jurisdiction. At 61 signed agreements, the island sits well beyond it, and its commitment to the transparency process dates back to February 2002, placing it among the earliest committed offshore centres.
The Global Forum monitors and peer-reviews implementation of the EOIR standard. Following its peer review, the island was rated "Compliant", the highest rating available.
Engagement has extended beyond on-request exchange. The island joined the Global Forum Working Group on Automatic Exchange of Information, formed part of the CRS Early Adopters Initiative, and signed the Multilateral Competent Authority Agreement in October 2014, effective from 1 August 2014, which widened its exchange partners well beyond the TIEA and DTA network. It also proposed the creation of a separate forum for competent authorities at the 2011 Bermuda meeting, adopted by the Global Forum with its inaugural session in 2012.
What TIEAs Mean in Practice for a Non-Resident Owner or Adviser
If your home country holds a TIEA with the island, you should assume that a formal request for your financial or ownership information held there can be made and acted upon by your own tax authority. On-request exchange is lawful, routine, and supported by a "Compliant" rating, so valid requests are not declined as a matter of policy.
The protection is procedural, not absolute. A request must meet the treaty's terms and rest on a prima facie case, fishing expeditions should be turned away, and judicial review is available, but the taxpayer has no automatic statutory veto over a notice issued to a bank or trustee.
- Records that pre-date a TIEA can still be reached where a criminal tax matter is involved, and used for civil assessment.
- On-request exchange is one channel among several: FATCA IGAs with the USA (13 December 2013) and the UK (22 October 2013) and CRS automatic exchange run in parallel.
- Structures tied to Sark or Jethou fall outside the TIEA and DTA network, which can change how a request reaches them.
For planning, the practical implication is straightforward: arrangements connected to the island should be built and documented on the assumption that information may lawfully be disclosed, not hidden. Specific rates and DTA relief are covered in their own dedicated articles.
Conclusion
TIEAs give foreign tax authorities a lawful, case-by-case route to information held in Guernsey, governed by the Income Tax (Guernsey) Law, 1975 and administered by the Director of the Revenue Service. With 61 agreements, a "Compliant" Global Forum rating, and parallel FATCA and CRS channels, a non-resident owner or adviser should expect that properly made requests will be honoured, while retaining limited procedural protections through the section 75K appeal and judicial review. The sensible position is to structure and keep records on the basis that disclosure on request is a normal feature, not an exception.
How Expanship Can Help Your Business in Guernsey
Expanship supports foreign owners and advisers in understanding their exposure under the island's TIEA network, in preparing for information requests, and in keeping records that meet the standards a request may test. Alongside that, we manage the wider set of obligations a foreign-owned entity carries on the island.
- Company formation and entity setup
- Registered agent and registered office services
- Tax registration and filing with the Revenue Service
- Ongoing compliance and statutory obligation management
- Accounting and bookkeeping
- Introductions to local banking providers
To discuss your situation, contact Expanship Guernsey.
Frequently Asked Questions
The island has signed 61 TIEAs to date, with the full list published on the official States of Guernsey TIEA page. This figure sits well above the OECD minimum of 12 used to regard a jurisdiction as cooperating on tax transparency.
No. A TIEA operates on request only, so information is shared in a specific case after a formal, justified request that establishes a prima facie case. Automatic exchange happens instead through CRS and the FATCA IGAs, which are separate channels.
The recipient of the notice, such as a bank or trustee, can appeal under section 75K of the Income Tax Law, with leave from the Bailiff sought within 30 days. The taxpayer under investigation has no express statutory right to appeal, but case law confirms that judicial review of the Director's decision is available.
It can. Records pre-dating the entry into force of an agreement may be obtained where they relate to a criminal tax matter, and that information could then be used for a civil tax assessment.
No. The island's TIEAs and DTAs apply to Guernsey, Alderney, and Herm, but not to Sark or Jethou, which is a material point for some structures.
The Director of the Revenue Service is the competent authority, acting under the Income Tax (Guernsey) Law, 1975. The Revenue Service reviews incoming requests, issues notices under section 75B, and manages the exchange of information with partner authorities.
Legal Disclaimer
The information provided in this article is for general informational purposes only and does not constitute legal, tax, or professional advice. While we strive to ensure the accuracy and timeliness of the content, laws and regulations are subject to change, and the application of laws can vary widely based on specific facts and circumstances.
Readers should not act upon this information without seeking professional counsel tailored to their individual situation. Expanship and its authors disclaim any liability for actions taken or not taken based on the content of this article.
For specific advice regarding your business setup, compliance requirements, or any legal matters, please consult with qualified legal and tax professionals in the relevant jurisdiction.
