Tax in São Tomé and Príncipe

Who is the tax authority and where do filings live?

Sao Tome and Principe's Direccao dos Impostos (DI) under the Ministry of Planning, Finance and Blue Economy administers Sao Tome and Principe's tax system [SC1]. Substantive law: Codigo IRPS, Codigo IRC, IVA Code (effective 1 January 2024), and successive Orcamento de Estado annual amendments. Sao Tome and Principe is a CPLP, AU, ECCAS, and AfCFTA member.

What is the tax year and when are returns due?

Individual tax year is the calendar year. IRPS withheld monthly. Corporate annual returns due 31 May for prior fiscal year [SC1]. IVA monthly returns under post-2024 framework.

Who is a Sao Tomean tax resident?

Under Codigo IRPS, an individual is tax resident if (a) habitual residence in Sao Tome and Principe, OR (b) physically present 183+ days in tax year [SC2]. Residents taxed on worldwide income.

What are the personal income tax rates?

Progressive IRPS brackets: 0 percent up to STN 24,000 annually; ascending rates 10/13/15/20/25 percent ascending [SC1]. Top 25 percent above STN 132,000 annually. Personal allowance applies.

How does Sao Tome and Principe's corporate tax work?

IRC 25 percent flat for resident companies [SC2]. Reduced rates for new investments under Investment Code framework. Petroleum sector under PSC framework. Withholding on dividends to non-residents 15 percent. Pillar Two not transposed. Tax losses 5 years.

What about VAT?

IVA 15 percent under post-1-January-2024 framework replacing prior consumption tax [SC3]. Zero-rated on exports.

How are cryptoassets taxed?

Banco Central de Sao Tome e Principe advisory: cryptoassets restricted [SC2]. Where declared, gains under existing income-tax categories.

What is the treaty network and what are the audit triggers?

Sao Tome and Principe has approximately 1 active double tax treaty (Portugal) [SC4]. CPLP framework. MLI not yet ratified. Standard SOL 4 years; extended for fraud.

What are the common penalties and pitfalls for foreigners?

Penalty framework: late filings, failure to file, incorrect declarations [SC5]. Common pitfalls: (1) post-1-January-2024 IVA framework (15 percent) replacing prior consumption-tax framework — substantial transition complexity for cross-border operations; (2) cocoa-export economy concentration creates customs and excise complexity; (3) Joint Development Zone framework with Nigeria for petroleum-sector concessions; (4) Pillar Two not transposed; (5) extremely limited treaty network (1 DTC - Portugal); (6) MLI not yet ratified; (7) lusophone tradition (CPLP); (8) AfCFTA member; (9) parallel ECCAS/CPLP framework membership; (10) STN-denominated tax base with EUR-pegged dobra (24.5:1 since 2010); (11) Investment Code framework for incentivised projects; (12) post-2018 fiscal-administration progressive modernisation under IMF-supported framework.