Portugal, Sao Tome and Principe, Greece: Startup Funding & Startup Ecosystem Compared
Side-by-side breakdown of startup funding, startup ecosystem, visa options, and 6 more dimensions for founders choosing where to incorporate in 2026.
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Sao Tome and Principe and Greece tax all worldwide income once you become a tax resident (top rate: 44%). Portugal does not - only locally-sourced income is taxed. This is a fundamental structural difference that affects your total effective tax burden.
Portugal and Greece have an exit tax. If you establish residency and later wish to leave, you may owe tax on unrealized gains or assets at departure. The other country in this comparison does not have an exit tax.
Both countries tax worldwide income, but the top personal income tax rates differ materially. Portugal: 48% vs Sao Tome and Principe: 25%. Both apply to all global earnings once you establish residency.
Portugal and Greece have Controlled Foreign Corporation (CFC) rules. Owning a foreign company as a resident may trigger local tax on undistributed profits - even if the company pays no dividends. The other country in this comparison does not have CFC rules.
Portugal (IFICI (Incentivo Fiscal para a Internacionalização de Competências e Investimento)) offers a qualifying program that may exempt foreign-source income from local tax for up to 10 years. This can significantly reduce your effective rate compared to the standard regime.
Not tax advice. Tax laws change frequently. Verify with a qualified professional before making residency decisions.
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