Tax Alert | Portugal–United Kingdom Double Taxation Convention
20/01/2026
Notice No. 1/2026/1 was published in the Portuguese Official Gazette, making public the entry into force of the new Convention between the Portuguese Republic and the United Kingdom of Great Britain and Northern Ireland for the Elimination of Double Taxation with respect to Taxes on Income and on Capital Gains and the Prevention of Tax Evasion and Avoidance. The Convention was signed in London on 15 September 2025, approved by Resolution of the Assembly of the Republic No. 206-A/2025 and ratified by Presidential Decree No. 124-A/2025, both dated 29 December 2025.