Guernsey taxes residents on worldwide income and non-residents on Guernsey-source income only. Guernsey has no CFC regime. Guernsey operates a self-assessment system, with the Revenue Service conducting post-filing review.
The Guernsey tax year is the calendar year.
Guernsey's headline corporate income tax (CIT) rate is 0% (10% banking/insurance/fund admin; 20% property/retail over GBP 500,000).
The headline personal income tax (PIT) rate is 20%.
No VAT or GST currently exists in Guernsey. A Goods and Services Tax has been under active political debate for years and has been repeatedly rejected or delayed: proposals were voted down in the States of Guernsey in 2023 (twice) and again in 2024, before a GST package was tentatively approved in late 2024 pending further review. The most recent detailed proposal (Policy and Resources Committee, June 2026 Tax Reform Package) reduced the proposed rate from 5% to 3% (or 6% if food is excluded from the tax base) and set the earliest possible implementation date at Q1 2028 - itself already pushed back from an original January 2027 target, then July 2027. As of the most recent elections, a majority of newly-elected deputies campaigned on opposing the GST package, so its ultimate adoption, rate, and timeline all remain genuinely unresolved and should not be treated as confirmed.
Companies tax resident in Guernsey are subject to income tax on worldwide income. Individuals electing "resident only" status may pay a standard charge (£40,000, rising to £50,000 from January 1, 2026) in exchange for exemption from Guernsey income tax on worldwide income, remaining taxable only on Guernsey-source income.
A non-Guernsey entity has a Guernsey permanent establishment through a fixed place of business or a dependent agent habitually concluding contracts in Guernsey on the entity's behalf, following the OECD Model Treaty definition as applied under Guernsey domestic law and any applicable tax treaty.
Guernsey has no CFC-style attribution regime and no specific anti-avoidance legislation targeting transfer pricing, thin capitalization, or controlled foreign companies. Guernsey instead relies on a broad general anti-avoidance provision targeting any transaction or series of transactions whose effect is the avoidance, reduction, or deferral of a tax liability, with the Director of the Revenue Service holding discretion to make counteracting adjustments.
Guernsey does not currently have specific thin capitalisation legislation in place, with the same general anti-avoidance provisions described above applying instead of a numeric debt-to-equity test.
Guernsey does not use an elective check-the-box classification system; entity classification generally follows the entity's actual legal characteristics. Guernsey does not have a comprehensive ATAD2-style anti-hybrid regime.
No foreign bank account or foreign financial asset reporting regime exists requiring residents to separately disclose foreign accounts; foreign income is reported through the standard annual tax return.
Guernsey does not levy tax on most corporate income under its 0% standard corporate rate already described elsewhere on this page, which functions as a broader substitute for a conventional participation exemption on dividends received by a Guernsey company.
Guernsey has a foreign tax credit mechanism for foreign tax paid on foreign-source income also taxed in Guernsey, capped at the Guernsey tax otherwise due on that income.
Guernsey has full double taxation agreements (DTAs) with Cyprus, Estonia, Hong Kong, the Isle of Man, Jersey, Liechtenstein, Luxembourg, Malta, Mauritius, Monaco, Qatar, Seychelles, Singapore, the United Kingdom, and (as of November 26, 2025) Bahrain - 14 named DTA partners. Separately, Guernsey has signed Tax Information Exchange Agreements (TIEAs) with 61 jurisdictions. Guernsey's first TIEA was concluded with the United States in September 2002; per Guernsey's own submission to the European Parliament, Guernsey has never itself refused to negotiate a TIEA or DTA with any territory, though Russia and Panama have declined Guernsey's own offers to negotiate. Unilateral relief is available for tax paid in other jurisdictions at up to three-quarters of the lower of the Guernsey effective rate and the overseas rate, for taxes other than those on dividends or debenture interest.