The Government of Guernsey has updated its Tax information for companies guidance page, noting the availability of the 2025 corporate (company) tax return, which must be submitted by 30 November 2026. Guidance on the tax return includes the following:
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Company tax return
Companies are required by Law to complete their income tax returns online. To access the portal to be able to register and file a corporate income tax return please use the button on the side of this page. You will ne…