Portugal Tax Treaties

Portugal Singapore double taxation agreement: is it in force?

Source: Autoridade Tributária e Aduaneira, Portal das FinançasRetrieved 5 November 2026Independent information site: we are not the Autoridade Tributária e Aduaneira (AT) or the source of the data.

Yes: the AT list shows a double taxation convention between Portugal and Singapore, in force since 16 March 2001. Aviso n.º 45/2001 published 11 May 2001.

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Country
Singapore
Name in the AT list
Singapura
Status per the AT table
in force
Legal instrument (as printed by AT)
Resolução da Assembleia da República n.º 85/00 de 15 de Dezembro Protocolo Altera CDT (Res. Ass. República nº 96/2013, de11 de Julho).
Aviso, publication and entry into force (as printed by AT)
Aviso nº 45/2001 publicado em 11-05-2001 EM VIGOR DESDE 16-03-2001 Protocolo Altera CDT EM VIGOR DESDE 26-12-2013 (Aviso n.º 9/2014, de 15 de Janeiro)
Entry into force of the convention
16 March 2001
Aviso publication date
11 May 2001
Official instrument
Convention text (PDF) on the AT list of conventions
Singapura - Protocolo que altera a convenção entre a República Portuguesa e a República de Singapura
Sources
Autoridade Tributária e Aduaneira, list of conventions, retrieved 5 November 2026; Quadro resumo das convenções 2026, retrieved 5 November 2026

What this page does not say

We do not show withholding tax rates, residence rules or how the convention applies to a person or a company: those are in the convention text linked above, and the Autoridade Tributária e Aduaneira decides. This page is not tax advice.

The AT texts are in Portuguese and are quoted as printed. The English labels are ours.

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