{"id":31832,"date":"2025-09-30T21:35:17","date_gmt":"2025-09-30T21:35:17","guid":{"rendered":"https:\/\/limiscaelis.pt\/?p=31832"},"modified":"2025-10-02T15:18:04","modified_gmt":"2025-10-02T15:18:04","slug":"guia-pratico-ao-regime-simplificado-para-trabalhadores-independentes-2","status":"publish","type":"post","link":"https:\/\/limiscaelis.pt\/en\/practical-guide-to-the-simplified-regime-for-self-employed-2\/","title":{"rendered":"Double Tax Treaties: How They Work and Why They Matter"},"content":{"rendered":"
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Have you ever wondered what happens when you receive income from another country? Do you pay tax there and in Portugal too? To avoid the same income being taxed twice, Portugal has signed Double Tax Treaties (DTTs)<\/strong> with many countries.<\/p>\n

These treaties are essential for expatriates, investors, and businesses with international activity, as they determine where<\/strong> and how<\/strong> income should be taxed.<\/p>\n

In this article, you will learn:<\/p>\n

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  • The meaning of terms such as \u201conly in the country of residence\u201d or \u201cin both countries\u201d.<\/li>\n
  • How taxation limits work for income such as interest, dividends, and royalties.<\/li>\n
  • The risks when the treaty is not applied correctly.<\/li>\n
  • The specific rules for the Non-Habitual Resident regime.<\/li>\n<\/ul>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    What the key terms mean in the Treaties<\/h2>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    DTTs define in which country income can be taxed.<\/strong> Three key expressions make all the difference:<\/p>\n

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    • \u201cOnly in the country of residence\u201d<\/strong> \u2013 means that only the country where the taxpayer is resident can tax.<\/li>\n
    • \u201cOnly in the country of source\u201d <\/strong>\u2013 only the country where the income was earned (or paid) can tax.<\/li>\n
    • \u201cIn both countries\u201d<\/strong> \u2013 both countries may tax, but one must give a tax credit to avoid double taxation.<\/li>\n<\/ul>\n

      \ud83d\udc49 Exemplo pr\u00e1tico: dividendos pagos por uma empresa estrangeira podem ser tributados no pa\u00eds da empresa<\/strong> e tamb\u00e9m em Portugal<\/strong>, mas existe um limite para essa tributa\u00e7\u00e3o externa.<\/p>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Income taxable in both countries: interest, dividends, and royalties<\/h3>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Not all types of income are exclusive to one country. Some, such as interest, dividends, and royalties,<\/strong> can be taxed in both, but with maximum limits defined in the treaty.<\/p>\n

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      • \u2022\tImagine you receive dividends from a country with which Portugal has a treaty:\n
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        • In Portugal, the taxation is 28%. 28%<\/strong>.<\/li>\n
        • If 15% was withheld abroad, Portugal only taxes the remaining 13%. 15%<\/strong>, Portugal apenas tributa os 13% restantes<\/strong>.<\/li>\n
        • If 30%<\/strong> was withheld abroad, Portugal only recognises the maximum limit set in the treaty (e.g. 15%). It then applies 13% here, and the extra 15% paid abroad is lost.<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

          \ud83d\udccc Key takeaway: the treaty protects against double taxation, but only up to the agreed limit.<\/p>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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          Income taxable only in Portugal<\/h3>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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          When the treaty states that income is taxable only in the country of residence <\/strong>, any tax paid abroad is lost <\/strong>.<\/p>\n

          \ud83d\udc49 Example:<\/p>\n

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          • Capital gains on shares \u2013 if the treaty allocates exclusive taxation rights to Portugal, and the other country also taxed it, that tax will not be credited in Portugal.<\/li>\n<\/ul>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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            The importance of declaring non-residence<\/h3>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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            For treaties to apply correctly, it is essential to inform each country about your tax residency.<\/strong><\/p>

            • Without this declaration, you may be taxed as a local resident and lose treaty benefits.<\/li>
            • Usually, you need to present a certificate of tax residence issued by the Portuguese Tax Authority.<\/strong><\/li><\/ul>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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              The Non-Habitual Resident (NHR) regime<\/h3>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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              For those who are tax resident in Portugal under the Non-Habitual Resident regime<\/strong>, the treaty has an even more favourable impact:<\/p>

              • If the treaty allows taxation in the source country, the income may be fully exempt in Portugal.<\/strong><\/li><\/ul>

                In other words, even if no tax was actually paid abroad, the treaty combined with the NHR regime guarantees this exemption.<\/p>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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                Conclusion<\/h3>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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                Double Tax Treaties are a key tool for effective tax planning. They help avoid double taxation but require:<\/p>

                • Knowledge of the specific rules in each treaty.<\/li>
                • Attention to the taxation limits.<\/li>
                • Compliance with formal requirements in each country.<\/li><\/ul>

                  \ud83d\udc49 Para quem beneficia do regime RNH, as conven\u00e7\u00f5es podem at\u00e9 significar isen\u00e7\u00e3o total<\/strong> em Portugal, tornando a an\u00e1lise caso a caso ainda mais relevante.<\/p>\t\t<\/div>\r\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

                  J\u00e1 pensou no que acontece quando recebe rendimentos de outro pa\u00eds? Ser\u00e1 que paga impostos l\u00e1 e c\u00e1? Para evitar…<\/p>","protected":false},"author":2,"featured_media":31833,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[77,73],"tags":[63,62,61,65,64],"class_list":["post-31832","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-beneficios-fiscais","category-enis","tag-empresario-em-nome-individual","tag-enis","tag-financas","tag-regime-simplificado","tag-trabalhadores-independentes"],"_links":{"self":[{"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/posts\/31832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/comments?post=31832"}],"version-history":[{"count":7,"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/posts\/31832\/revisions"}],"predecessor-version":[{"id":31840,"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/posts\/31832\/revisions\/31840"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/media\/31833"}],"wp:attachment":[{"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/media?parent=31832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/categories?post=31832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/limiscaelis.pt\/en\/wp-json\/wp\/v2\/tags?post=31832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}